AMN12111 [PANASONIC]

What is a Motion Sensor; 什么是运动传感器
AMN12111
型号: AMN12111
厂家: PANASONIC    PANASONIC
描述:

What is a Motion Sensor
什么是运动传感器

传感器
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1
What is a Motion Sensor?  
The motion sensor is an infrared  
human detection sensor, which, as  
opposed to factory automation sen-  
sors that are used with factory  
equipment, is designed to be incor-  
porated into various devices that  
exist around us in daily life.  
Motion sensors are not for use in  
factory automation.  
Types of motion sensor  
Motion sensors are divided into two types.  
The world’s smallest with a built-in amplifier  
Passive infrared type  
MP Motion Sensor ‘  
Designed to cover a wide area, this sensor detects  
human presence. The sensor, rather than emitting light  
such as from LEDs, detects the amount of change in  
infrared rays that occurs when a person (object),  
whose temperature is different from the surroundings,  
moves.  
Sensor  
Spot type  
10m detection type  
1. As this sensor  
detects temperature  
differences, it is well  
suited to detecting  
the motion of people  
Infrared radiation  
by their body tem-  
Temperature  
difference  
perature.  
2. Wide sensing area.  
3. Detection  
Infrared radiation  
Standard type  
Slight motion  
detection type  
distance cannot  
be set.  
Movement  
A compact distance-type sensor that is not easily  
influenced by reflection ratio.  
Area reflective type  
As the name implies this sensor emits infrared rays  
from an LED. Using the reflection of those rays the  
sensor measures the distance to the person (object)  
and detects whether or not it is exists within a spe-  
MA Motion Sensor  
cific distance.  
(1) Suitable for detection within specific ranges.  
(2) Possible to select the detection distance.  
• Selection possible in 1 cm increments between 5 cm and 10  
cm.  
Middle type  
Short type  
(20 cm to 80 cm)  
(5 cm to 10 cm)  
• Selection possible in 10 cm increments between 20 cm and  
200 cm.  
Long type  
Long type  
(Vertical  
installation)  
(30 cm to  
200 cm)  
(Horizontal  
installation)  
(30 cm to  
200 cm)  
Sensor  
1.What is a Motion Sensor?  
Application of MP Motion Sensor ‘  
Method of use  
Automatically turn indoor lighting on and off  
Use as a human detection sensor to automatically  
turn lights on when a person is present in a room  
and to turn them off when nobody is there.  
Points to consider when selecting  
a sensor  
1. The presence of a person must be detected  
over a side area (room).  
2. Even slight human motion must be detected.  
MP Motion Sensor  
Other application examples  
Recommended conditions of use  
1. Detection over a wide area (see note).  
2. When the detection range extends to the wall or floor.  
Note: If you wish to limit the range of detection, we recommended a spot type sensor.  
Conference room control sensor  
Automatic verbal address system  
Lighting control for vending  
machine  
Amusement park facilities: Automatic  
control of devices (Establishes timing for device  
start-up.  
Monitor camera  
Control of air conditioner louver  
On/Off of smoke dispersal  
machine  
Sink and dresser light  
Detection of toilet use  
On/off of TV power  
Energy saving mode of computer  
monitor  
Verbal guidance machine for the  
blind  
Entry light  
Desk light  
Control ATM displays  
1. What is a Motion Sensor?  
Application of MA Motion Sensor  
Method of use  
Running machine in athletic club  
To prevent the runner from falling when he or she  
tires and becomes unable to keep up with the  
belt, the sensor slows the belt when the runner  
falls back out of the detection area of the sensor.  
Sensing area  
Sensor  
Points to consider when selecting a sensor  
1. The detection area must be limited so that only  
the person using the running machine is  
detected.  
2. The detection distance must be limited.  
MA Motion Sensor  
Other application examples  
Recommended conditions of use  
1. Non-moving people (objects) and objects without a temperature difference are to be detected.  
2. The detection distance and area must be limited (see note).  
Note: With the aim of widening the detection range, the external trigger type, which prevents reciprocal interfer-  
ence, is recommended when using multiple sensors.  
Automatic water faucets  
Non-contact switch for the toilet  
Customer detecting sensors for  
automated teller machines  
Toilet seat opening & closing control  
Lighting control  
Flushing switch  
Customer sensor  
Automatic ticket gate  
Parking meter  
Welcome  
1. What is a Motion Sensor?  
Application example  
Select a sensor that suits the objective.  
Examples of automatic advertising and automatic verbal guidance  
(ticket machines, vending machines, ATMs, illuminated photographs, etc.)  
2.When a person is close to  
the device:  
1.Advertising when a person walks  
past the device.  
The device is turned on  
Instructions for using the  
machine are heard  
The presence of a person in a very  
limited range must be detected, there-  
fore the detection area is small. We  
recommend the area reflective type  
MA Motion Sensor, which enables the  
detection range to be select.  
Detection is necessary over a  
wide area, therefore we recom-  
mended the passive infrared type  
’ MP Motion Sensor.  
The current situation:  
Techniques for reducing device power  
consumption will increase dramatically.  
To preserve the global environment  
At the Kyoto conference for the prevention of global warming held in 1997, it was  
agreed that “by 2008–2012, Japan will attempt to reduce the output of green-  
house gases by 6% with respect to 1990 levels.”  
Efforts in various fields to reduce greenhouse gases  
Environmental action:  
The beginning of “energy-saving” competition  
Government  
From the latter half of 1998 to the former half of 1999, the Ministry of International  
Trade and Industry began enforcement of the Energy Saving Act, which requires  
manufacturers to conserve energy.  
The focal point of this act is the “Top Runner Method”, whereby “Excellent products” having the  
highest energy efficiency are selected. This energy efficiency becomes a standard that other  
products are required to meet within a certain period. Manufacturers unable to meet this stan-  
dard are subject to punishment. A total of ten products are scheduled for implementation,  
including automobiles and electrical appliances such as air conditioners, refrigerators, televi-  
sions, VCRs, and personal computers.  
Manufacturers  
“Energy saving” is becoming an increasingly important factor in consumer selec-  
tion of products. Manufacturers are therefore promoting their technical prowess  
and aggressive stance with respect 10 environmental problems.  
1. What is a Motion Sensor?  
Motion Sensor application examples (1)  
The recommended sensor is indicated by either of the following marks behind each application.  
P
; Passive infrared type MP Motion Sensor ‘  
; Area reflective type MA Motion Sensor  
Air conditioner control  
P
A
Crime prevention sensor  
P A  
Intruder alarm  
Glass breaking detector  
P A  
A
TV  
(Energy conservation when  
nobody is home)  
P
Automatic lighting  
P
Automatic ventilation fan  
P
Automatic lighting  
P
Entry way light  
(Automatic lighting)  
P A  
Automatic faucet  
A
Use sensors  
in accordance  
with their  
Hallway light  
(Automatic lighting)  
P
P
applications.  
Gate light  
(Automatic lighting)  
Garage light (Automatic lighting)  
P
Automatic ventilation fan  
Automatic faucet  
P
A
1. What is a Motion Sensor?  
Motion Sensor application examples (2)  
The recommended sensor is indicated by either of the following marks behind each  
application.  
Athletic gym  
P
; Passive infrared type MP Motion Sensor ‘  
; Area reflective type MA Motion Sensor  
A
Running machine  
A
Medical bed safety  
P A  
(prevent people from being  
caught underneath an  
elevating bed)  
Hospital  
Occupancy sensor  
A
Office building  
Non-contact switch  
A
Automatic flushing  
A
Hand dryer  
A
P
Automatic ventilation fan  
P
Amusement area  
Automatic lighting in  
conference room  
Automatic toilet seat  
opening/closing  
A
Automatic lighting for  
Karaoke room, display power  
P
Customer detection for  
automated teller machine  
Customer detection for  
3-minute photo machine  
A
P A  
Automatic lighting for  
vending machine  
Automatic lighting  
P A  
P
Welcome!  
Revolving door  
A
Player detection at Pachinko machine,  
power for display of information terminal  
Security  
P
P A  
Air bag  
P A  
Parking lot  
Telephone booth lighting P A  
Baggage detection in coin locker P A  
Customer sensor  
P A  
Station  
Automatic door  
P A  
Permit dispenser for parking lot  
A
Detection of passengers  
getting on/off  
A
Automatic ticket gate  
A
Customer sensor for gasoline stations  
A
2 Operating principle of Motion Sensor  
MP Motion Sensor ‘  
Overall, from the standpoint of detection performance, noise resistance,  
causes of false detection and cost performance, the passive infrared type  
is the most practical means of detecting the human body without contact.  
All objects on the earth emit light in accor-  
dance with their temperature and surface  
characteristics. Naturally, light (infrared radia-  
tion) is also emitted from our bodies. (This radi-  
Radiation from  
human body: 10µm  
ation is emitted from the body surface, and is  
centered around a wave-length of 10µm.)  
When a person enters the detection area of  
the sensor, the amount of infrared radiation  
incident on the sensor varies by the  
amount corresponding to the difference in  
temperature between the body surface and  
background.  
These sensors detect the human  
Infrared radiation  
body by detecting the change in  
incident infrared radiation.  
That is, the sensor is actuated by the differ-  
ence in temperature between human body  
(which is a heat source) and floor, walls and  
Temperature  
Infrared radiation  
difference  
other objects forming the background.  
Movement  
Detection area of standard type  
Y
Detection area  
Detection zone  
3m  
TOP VIEW  
X
SIDE VIEW  
Y
5m  
16.404ft  
2
5m  
16.404ft  
50°  
41°  
1
(Max. 5.66m)  
2.5m  
8.202ft  
2.5m  
8.202ft  
X
4m  
3
2
1
1
2
3
4m  
1
2
0°  
0°  
3m  
2.5m  
8.202ft  
2.5m  
8.202ft  
(Max. 7.42m)  
41°  
In the detection zone, above, the sen-  
sor turns on when a temperature  
50°  
5m  
16.404ft  
5m  
16.404ft  
change exceeds the regulated amount.  
2. Operating principle of Motion Sensor  
MA Motion Sensor  
These sensors detect the human body via the area reflection system.  
Reflected beam  
Output  
Light beam  
Non-contact switch  
The sensor sends out a ray of light toward the human body, then uses the reflect-  
ed light to measure the distance and determine whether there is a person within  
a given distance of the sensor. If the sensor decides that there is a person within  
the given distance, it sets an output non-contact switch to ON.  
The triple-angle distance measurement configuration makes it difficult  
to be affected by the color (reflection ratio) of the detection object.  
This is the high-precision distance measurement method used in the  
auto-focus systems in cameras.  
Detection distance L  
L  
+ L  
Receiver lens  
Photo detector  
Human  
body  
Near  
Far  
Projector lens  
Light-emitting  
element  
The system is configured so that the received light spot comes almost the center  
of the photo detectors when if a human body is located at the detection distance L.  
The system determines whether the body is farther (L+ L) or closer (L L) by  
the position of the received light spot.  
3
FEATURES  
MP Motion Sensor ‘  
Passive infrared type  
FEATURE  
The world’s smallest with a built-in amplifier  
1
Easy to incorporate into small devices.  
All it takes is a bright  
idea to increase the  
range of application.  
Motion detecting sensor area type  
MP Motion Sensor ‘  
<Conventional type>  
Lens surface area Ø9.5mm  
Mounting hole Ø9.8mm  
About 1/10 the vol-  
ume and 1/5 the  
lens surface area  
of conventional  
motion detecting  
sensors.  
14.5mm  
Actual size  
Actual size  
Standard type  
Here is the secret to the world’s  
smallest sensor  
Our motion sensor is based on know-how developed  
over many years, including our proprietary technolo-  
gy for lenses, detector elements, ICs and mounting.  
Structural diagram  
Small multi-lens  
Proprietary high-precision moldingtechnology is usedto integrate 16  
short -focal-point lenses with five different optical axes in order to reduce  
size.  
Highly sensitive quad element  
U-shaped slits are formed around the four light-receiving units to  
improve heat insulation, reduce element size and increase element  
sensitivity.  
Single-chip IC with built-in amplifier and comparator  
Proprietary circuit technology which is different from ordinary FET  
technology is used to create a single-chip IC which contains both an  
amplifier circuit and a comparator circuit.  
(
)
Microscope Integrated Processing Technology  
MIPTEC  
application device  
Employing MIPTEC which has our proprietary MID (Molded  
Interconnect Device) technology, the element, IC and chip  
component is mounted in a MID at high density and contained in a  
TO5 metal package (9.8 mm x 9 mm dia.).  
3. Features of MP Motion Sensor  
FEATURE  
Circuit design is easy because the amp and comparator are built in (except for analog output type).  
2
The digital output enables connec-  
tion directly to microcomputers.  
Key point  
To achieve the same scheme as the ‘  
MP Motion Sensor, a sensor element, amplifier  
and comparator are required.  
The output from the sensor element is extremely  
weak in the passive infrared scheme, thus the signal  
must be amplified and converted to an ON/OFF sig-  
nal with a comparator circuit before output.  
MP motion sensor block diagram  
TO5 metal package  
(9.8mm × 9mm .386inch × .354inch dia.)  
Infrared  
radiation  
Single-chip  
IC  
Stabilized  
power  
supply  
Vdd  
Comparator  
output  
circuit  
Output  
Gnd  
Sensor  
Lens  
Amplifier  
circuit  
element  
Multi lens  
Amplifier circuit  
Comparator  
circuit  
Quad type  
PIR element  
Optical filter  
On  
Output  
Signal  
Off  
Weak signal Strong signal  
is not just a sensor element; it has a built in  
amp and comparator. Be sure to carefully check the func-  
tions, etc., when comparing with other company's products.  
FEATURE  
Noise withstanding capability  
3
Shielding is increased because the  
amp circuit is built into the TO5  
metal package.  
Key point  
To achieve the same scheme as the NaPiOn MP  
Motion Sensor, a countermeasure for radiant noise  
in general is necessary. If noise enters the circuit  
between the sensor element and the amplifier, the  
noise will be amplified along with the weak signal,  
resulting in detection errors.  
Comparison table of noise with-  
standing capability  
Distance at which motion  
sensor is not affected by  
cellular phone noise  
For this reason, shielding is necessary between  
the sensor element and the amplifier.  
Min. 1 to 2cm .394 to .787  
inch  
(Block diagram for a typical passive infrared sensor)  
MP Motion Sensor  
Sensor  
Lens  
Min. 1 to 2m 3.281 to  
element  
Amplifier circuit  
Comparator  
circuit  
Conventional type  
6.562ft  
On  
Output  
Signal  
Off  
Weak signal  
Strong signal  
Noise  
Detection error  
Output  
Signal  
Lens  
Sensor  
element  
Amplifier circuit  
Comparator  
circuit  
Shield  
Shielding is taken care of in the ‘  
(TO5 metal package includes shielding)  
Regular same-system sensors require separate noise countermeasures to be taken.  
TO5 metal package  
FEATURE  
Dual lens colors (white and black) are provided  
4
<Conventional type>  
<MP Motion Sensor ‘  
>  
Mounting hole  
ø9.8mm. 386 inch  
This provides greater flexibility in  
equipment design.  
FEATURE  
Four detection performance types are available  
5
Detection Performance  
1. Standard type  
TOP VIEW  
SIDE VIEW  
Y
X-Y cross section  
5m  
16.404ft  
X
5m  
16.404ft  
50°  
Y
Detection area  
Detection zone  
3m  
9.843ft  
41°  
2
2.5m  
8.202ft  
2.5m  
8.202ft  
6.562  
1
3.281  
(Max. 5.66m)  
(Max. 18.570ft)  
0°  
0°  
X
4m  
3
2
1
1
2
3
4m  
13.123ft 9.843 6.562 3.281  
3.281 6.562 9.843 13.123ft  
1
3.281  
2.5m  
8.202ft  
2.5m  
8.202ft  
2
6.562  
41°  
3m  
9.843ft  
50°  
(Max. 7.42m)  
(Max. 24.344ft)  
5m  
16.404ft  
5m  
16.404ft  
A wide horizontal detection range has been achieved for situations where  
the sensor will be attached to a wall and used to detect passersby.  
Notes:  
1) Detection is also possible with the sensor attached to the ceiling.  
2) In situations where the customer wants use a sensor attached to a wall to  
detect slight movements, recommend the slight movement detection type.  
3. Features of MP Motion Sensor  
2. Slight motion detection type  
X-Y cross section  
Y
2.5m  
8.202ft  
Detection zone  
Y
2.5m  
8.202ft  
46°  
2
2
6.562  
6.562  
1.5  
4.921  
1.5  
4.921  
Detection area  
1
1
3.281  
3.281  
0.5  
1.640  
0.5  
1.640  
1m  
3.281ft  
2m  
6.562ft  
0
0°  
X
–2  
–1.5  
–1  
–0.5  
0.5  
1
1.5  
2
2.5m  
8.202ft  
–2.5m  
–8.202ft  
–6.5624.9213.2811.640  
1.640 3.281 4.921 6.562  
–0.5  
–1.640  
–0.5  
–1.640  
For ceiling attachment, this sen-  
sor is designed to detect slight  
movements in conference rooms  
and other rooms where people  
gather. Detection is also possi-  
ble attached to a wall.  
–1  
–1  
–3.281  
–3.281  
–1.5  
–4.921  
–1.5  
–4.921  
–2  
–6.562  
–2  
–6.562  
46°  
–2.5m  
–8.202ft  
1m  
3.281ft  
2m  
–2.5m  
–8.202ft  
6.562ft  
(Max. 5m dia.)  
(Max. 16.404ft dia.)  
3. Spot type  
X-Y cross section  
SIDE VIEW  
Y
TOP VIEW  
Y
X
1m  
3.281ft  
2.5  
8.202  
2.5  
8.202  
19°  
0.5  
1.640  
1.25  
4.101  
1.25  
4.101  
11°  
5m  
16.404ft  
2.5  
8.202  
5m  
16.404ft  
2.5  
8.202  
(Max. 1.4m)  
X
0
0°  
0
0°  
1m  
0.5  
0.5  
1m (Max. 4.593ft)  
3.281ft 1.640  
1.640 3.281ft  
11°  
1.25  
1.25  
0.5  
4.101  
4.101  
1.640  
19°  
2.5m  
8.202ft  
2.5m  
8.202ft  
1m  
3.281ft  
5m  
16.404ft  
2m  
5.562ft  
5m  
16.404ft  
2m  
5.562ft  
(Max. 2m)  
(Max. 6.562ft)  
Ideal for detecting people in small areas, such as for voice  
guidance or entry light control.  
Note: Recommended when you want to further restrict the  
detection range.  
4. 10m detection type  
X-Y cross section  
TOP VIEW  
SIDE VIEW  
Y
Y
X
10m  
32.808ft  
10m  
32.808ft  
(Max.15.9m 52.165ft)  
Detection zone  
6m  
19.685ft  
46.5°  
5m  
16.404ft  
5m  
16.404ft  
4
13.123  
2
6.562  
X
10m  
32.808ft 26.247 19.685 13.123  
8
6
4
2
2
4
6
8
10m  
6.562  
6.562  
13.123 19.685  
26.247 32.808ft  
2
6.562  
5m  
16.404ft  
5m  
16.404ft  
4
(Max.12.3m 40.35t)  
13.123  
6m  
19.685ft  
55°  
10m  
32.808ft  
10m  
32.808ft  
Ideal for detecting people  
over larger areas than the  
standard type.  
Note on the detection zone:  
As indicated at right, the detection zone  
has polarity. If two objects enter the zone in  
the + and – directions at the same time,  
the signals from each may cancel each  
other and make detection impossible in the  
vicinity of the maximum detection distance.  
Object  
Detection zone  
Application methods  
1. Setting the sensor so it will not  
detect people who are far away  
2. For detection in only a limited area  
Sensor  
Sensor  
Use tube  
Use slit  
Detection area  
Detection area  
FEATURE  
Analog output type also available that allows sensitivity adjustment  
6
Designed for situations in which the surrounding environment has an adverse effect  
on performance (when you want to reduce the difference between the background  
temperature of summer and winter, or eliminate the effect of varying air conditioner  
output). Being able to check the degree of influence using an analog value, the user  
can set the threshold whereby such influence can be ignored.  
3. Features of MA Motion Sensor  
Area reflective type  
MA Motion Sensor  
FEATURE  
Because of the distance-measured type, accurate sensing is possible  
with little influence caused by reflection ratio of the detection object.  
1
With commonly used light intensity type sensors (which detect objects by the amount  
of reflected light), performance is greatly affected by the reflectivity of the detected  
object.  
However, since the MA motion sensor does not detect based on the amount of reflect-  
ed rays, it features the ability not to be easily influenced by the reflection ratio because  
detection is based on the position of the receiving spot in the receive element.  
Light volume detecting type  
MA motion sensor  
Ex.) white paper  
Ex.) white paper  
Received  
light spot  
Reflected beam  
(Reflectivity:  
Approx. 90%)  
Stable detection  
Reflected beam  
(Reflectivity:  
Approx. 90%)  
Stable detection  
Received  
light spot  
Ex.) hair  
Ex.) hair  
Reflected beam  
(Reflectivity:  
Approx. 3% to 40%,  
average 5%)  
Stable detection  
Reflected beam  
(Reflectivity:  
Approx. 3% to 40%,  
average 5%)  
Unstable  
detection  
The system detects whether an object is  
present by the position of the received  
light spot on a photo detector, so it is not  
greatly affected by reflectivity.  
Since detection is determined by inten-  
sity, the influence of reflection ration is  
likely.  
A non-spherical lens is used both for projector and receiver.  
Using a non-spherical lens in this sensor, the projector lens can produce the incident  
light efficiently from the light-emitting element. In addition, the receiver lens can effi-  
ciently gather the entering light into the photo detector. As a result, an accurate dis-  
tance measurement can be made even if the detected object has low reflectivity.  
Efficient projection and  
condensation is possible.  
Non-spherical lens!  
Diagram of the receiving  
light path of a spherical lens  
Diagram of the receiving light  
path of an a non-spherical lens  
The sensor operates with high precision, even if  
the reflectivity of the detected object is low.  
FEATURE  
A built-in oscillation circuit type (internal trigger) and an  
external triggering type are available.  
2
Built-in oscillation circuit type  
Simply connect a DC power source and the sensor is ready for use.  
ON  
Output  
OFF  
Relay, etc.  
Motion  
sensor  
4.5 V DC  
to  
27 V DC  
Oscillation  
circuit  
Power circuit  
Latch circuit  
Just connect a DC  
power source and  
you’re ready to go!  
External triggering type  
Sensors can be connected sequentially.  
Input each external trigger signal in sequence to  
prevent reciprocal interference.  
Sequential connection is OK!  
Can be driven by a battery  
Establishing an interval between external trigger signals reduces current con-  
sumption in the sensor.  
Example of usage  
Automatic flushing of men’s urinal  
Rate of use of urinal: 30 minutes per day  
Trigger period: 2 seconds per trigger  
Built-in oscillation  
External trigger  
circuit type  
Average current  
consumption  
5480µA  
160.5µA  
Battery life  
(4 alkaline batteries)  
Approx. 1000 days  
(2.8 years)  
Approx. 30 days  
FEATURE  
Can be used with a number of different power supply  
voltages  
3
1) The 5 V DC type (4.5 to 6.5 V DC)  
2) The free-ranging power type (6.5 to 27 V DC)  
They support the DC power supplies of electronic products and equipment in general.  
3. Features of MA Motion Sensor  
FEATURE  
Ultra-compact size, suitable for built-in applications  
4
Motion sensors are designed to be built into equipment. We have  
achieved an ultra-compact size, so these sensors will not affect equip-  
ment size or interfere with design.  
A series of three types to suit the detected object  
Three types “Short type”, “Middle type” and “Long type” are available.  
Naturally, the shorter the distance, the more compact the type.  
Also, the rated detection distance can be changed at the factory to meet spe-  
cific customer needs.  
Type  
Rated detection distance (Range of variation)  
Short type  
Middle type  
Long type  
Change possible in 1 cm increments between a 5 cm and 10 cm range.  
Change possible in 10 cm increments between a 20 cm and 80 cm range.  
Change possible in 10 cm increments between a 30 cm and 200 cm range.  
Short type  
Middle type  
Long type  
29.7  
20  
23.1  
14  
19.5  
11  
32  
20  
46  
10 cm (3.937 inch)  
80 cm (31.496 inch)  
200 cm (78.74 inch)  
Detects hands  
Intentionally uses a hand-based  
non-contact switch  
Used as an ON/OFF switch for  
when a person stands in front of  
equipment.  
Set-up on the ceiling of a room,  
and used to detect whether a  
person is in the room or seated.  
As shown below, the detection area of this sensor is the area up to  
the rated detection distance excluding the non-sensitive zone.  
Rated detection  
Non-sensitive zone  
distance  
Several millimeters to  
several centimeters  
Active zone (detection zone)  
Reflected light  
(returns to receiver lens)  
Receiver  
lens  
Does not  
return to receiver lens  
Projector  
lens  
Infrared radiation  
FEATURE  
These sensors are highly resistant to disturbing ambient  
light, and can be used worry-free in bright spaces  
5
Factory automation sensors are used under conditions which are closely con-  
trolled to suit the application. MA motion sensors, however, are built into equip-  
ment, so they may sometimes be used at locations which are exposed to sunlight  
(however, the direct sunlight to sensor is impossible).  
Sensor for FA application  
MA Motion Sensor  
Sensor may be used at a bright location  
which are exposed to sunlight  
Closely controlled environment  
Usable ambient brightness (ambient light immunity) is one of the impor-  
tant points to be checked when using sensors in bright locations.  
Normally, for factory automation  
applications the usable ambient  
brightness is 3,000 to 10,000 lx.  
MA motion sensors can operate at  
30,000 lx, i.e, the brightness near a  
window on a summer day.  
FEATURE  
Circuit design is easy  
6
The detection result takes the form of ON/OFF output (open collector transistor out-  
put), thus a reference circuit is not necessary and circuit design is easy.  
FEATURE  
All models with built-in oscillation circuit type meet CE  
mark standards  
7
Conforms with EMC directive for CE certification vital for use in Europe.  
FEATURE  
High speed detection is possible  
8
• Built-in oscillation circuit type: measuring period 8 ms/time (typical)  
• External triggering type: measuring period 5 ms/time (typical)  
4
How to use and cautions for use  
1. How to use  
MP Motion Sensor ‘  
The MP Motion Sensor has three pins. Connections are as follows:  
(Digital output type)  
1. Wiring diagram  
Vdd  
GND  
Out  
Sensor  
+
Load  
+
Vdd: Input power source (DC)  
GND: GND  
Out: Output (Comparator)  
2. Timing chart  
ON  
Power supply  
Detection state  
Sensor output  
OFF  
Detect  
Not  
detect  
ON  
OFF  
Circuit stability  
time  
Note:  
Note:  
Circuit stability time: Max. 30 sec.  
While the circuitry is stabilizing after the power is turned on, the sensor output is not fixed in  
the “on” state or “off” state. This is true regardless of whether or not the sensor has detected  
anything.  
For this reason, please combine with a device that contains a function for preventing output  
during this time.  
The spot and 10m detection types are subject to change without notice due to improvements  
in product performance, characteristics and dimensions. Please contact us with any inquiries  
you may have.  
(Analog output type)  
1. Wiring diagram  
Vdd  
Sensor  
+
GND  
OUT  
Microcomputer  
and  
A/D converter,  
etc.  
RL  
Iout : MAX. 50 µA  
2. Timing chart (analog output type)  
Vdd  
Power supply  
GND  
Detect  
Detection state  
(Comparator  
Not detect  
decision output)  
human body  
movement  
Threshould voltage 1  
(comparator)  
Vdd  
Output waveform  
V out  
V h  
V l  
V n  
Voff  
GND  
Circuit stability time  
Threshould voltage 2  
(comparator)  
Note:  
Circuit stability time: Max. 45 sec.  
While the circuitry is stabilizing after the power is turned on, the sensor output is not fixed in  
the “on” state or “off” state. This is true regardless of whether or not the sensor has detected  
anything.  
For this reason, please combine with a device that contains a function for preventing output  
during this time.  
4. How to use and cautions for use  
MA Motion Sensor  
The MA Motion Sensor has four pins. Standard connections are as follows:  
(Built-in oscillation circuit type)  
1. Wiring diagram  
The output is open collector transistor output.  
Output voltage (Load voltage): 30 V  
Output flow current (Max. output current): 100 mA  
Circuit for a common source voltage for the sensor and the load  
Sensor  
1
Load  
2
Output Tr  
3
+
1. Output  
4
2. GND  
3. Power source  
4. Not used  
Circuit for separating the sensor source voltage and the load source  
voltage  
Sensor  
+
1
2
3
4
Load  
Output Tr  
+
1. Output  
2. GND  
3. Power source  
4. Not used  
2. Timing chart  
ON  
Power supply  
OFF  
OFF  
ON  
Output transistor  
(open collector)  
Circuit  
stability  
time  
Non detection status  
Detection status  
Non detection status  
Notes: 1. Circuit stability time : Max. 12 ms.  
2. During the time taken for the circuit to stabilize after the power is turned on,  
the ON/OFF status of the output transistor is not determined by whether the sensor is  
in the detection status or non-detection status.  
(External trigger type)  
33 µF or  
more  
(Note 3)  
1. Wiring diagram  
Power source  
3
Output  
1
(Note 1)  
External trigger input  
4
(Note 2)  
2
GND  
Notes: 1. Output transistor is an open collector.  
Detection status: Output transistor ON (connected to GND)  
Detection status: Output transistor OFF (open status)  
2. External trigger input is as follows:  
High level: Open  
Low level: GND (Max. 0.8 V)  
Be absolutely sure not to apply high level voltage.  
3. For the trigger type, in order to maintain a heavy power noise function, be sure to provide a  
capacitor (at least 33 µF) at the sensor power input terminal. This will stabilize the power sup-  
ply voltage.  
2. Timing chart  
ON  
Tt : Min. 5ms  
Tr : Max. 5ms  
Power supply  
OFF  
VTH  
VTL  
VTH  
VTL  
External trigger  
External trigger  
Output  
Tw  
Change  
(ON OFF or  
OFF ON)  
OFF  
ON  
Output transistor  
(open collector)  
Circuit  
stability Non detection Detection Non detection  
time  
status  
status  
status  
Notes: 1. Circuit stability time : Max. 12 ms.  
2. During the time taken for the circuit to  
stabilize after the power is turned on,  
the ON/OFF status of the output tran-  
sistor is not determined by whether  
the sensor is in the detection status or  
non-detection status.  
Note: 1. The sensor recognizes that an exter-  
nal trigger has been input at the VTH  
VTL edge of the external trigger.  
1. What is a Motion Sensor?  
2. Cautions for use  
Cautions for MP Motion Sensor ‘  
1. Checkpoints relating to principle of operation  
MP motion sensors are passive infrared sensors which  
detect changes in the infrared rays. They may fail to  
detect successfully if a heat source other than a human  
being is detected or if there are no temperature changes  
in or movement of a heat source. Care must generally be  
taken in the following cases. The performance and relia-  
bility of the sensors must be checked out under condi-  
tions of actual use.  
2. Other handling cautions  
1) Be careful not to allow dust or dirt to accumulate on  
the lens as this will adversely affect the detection sen-  
sitivity.  
2) The lens is made of a soft material (polyethylene).  
Avoid applying a load or impact since this will deform  
or scratch the lens, making proper operation impossi-  
ble and causing a deterioration in its performance.  
3) The sensor may be damaged if it is exposed to static  
with a voltage exceeding ±200V. Therefore, do not  
touch its terminals directly, and exercise adequate care  
in the handling of the sensor.  
4) When the leads are to be soldered, solder them by  
hand for less than 3 seconds at a temperature of less  
than 350°C 662°F at the tip of the soldering iron. Avoid  
using a solder bath since this will causing a deteriora-  
tion in the sensor’s performance.  
<1> Cases where a heat source other than a human being  
is detected.  
1) When a small animal enters the detection range.  
2) When the sensor is directly exposed to sunlight, a  
vehicle’s headlights, an incandescent light or some  
other source of far infrared rays.  
3) When the temperature inside the detection range has  
changed suddenly due to the entry of cold or warm  
air from an air-conditioning or heating unit, water  
vapor from a humidifier, etc.  
5) Do not attempt to clean the sensor. Cleaning fluid may  
enter inside the lens area causing a deterioration in  
performance.  
<2> Cases where it is difficult to detect the heat source  
1) When an object made of glass, acrylic or other sub-  
ject which far infrared rays have difficult passing  
through is located between the sensor and what is to  
be detected.  
6) When using the sensors with cables, it is recommend-  
ed that cables which are shielded and as short as pos-  
sible be used in order to safeguard against the effects  
of noise.  
2) When the heat source inside the detection range  
hardly moves or when it moves at high speed; for  
details on the movement speed, refer to the section  
on the performance ratings.  
Cautions for MA Motion Sensor  
1. Ambient operating conditions  
(e.g., mirror, glass, coated paper, etc.)  
4) The front surface of the lens and case are made of  
polycarbonate resin and can withstand water, alcohol,  
oils, salts and weak acids. Other fluids such as alka-  
lines, aromatic hydrocarbons and halogenated hydro-  
carbons may melt or swell the lens and case, please  
do not have such fluids touch the lens and case.  
5) To protect the inner circuit, wiring should be max. 3 m  
9.843 ft..  
4. Recommended installation procedure  
Install the MA motion sensor so that it is orientated cor-  
rectly in relation to the pass directions of the target  
objects as shown in the figure below.  
1) Avoid using the sensor in environments containing  
excessive amounts of steam, dust, corrosive gas, or  
where organic solvents are present.  
2) When the sensor is used in noisy environments, con-  
nect a capacitor (minimum 33 µF) across its power  
input terminals.  
2. Wiring  
1) Check all wiring before applying power. Incorrect wiring  
may damage the internal circuit (in particular, check  
that the connection to the power supply is not  
reversed.)  
2) Avoid excessive removing and replacing of the connec-  
tor.  
3. Detector surface (Optical surface)  
1) Keep the detector surface clean. Excessive dust or dirt  
on the detector surface will deteriorate the sensing  
performance.  
Object  
2) Do not allow condensation or freezing to occur on the  
surface of the sensor. If condensation or freezing does  
occur at low temperatures, the sensor may not detect  
objects correctly.  
3) This product is designed to detect the existence of  
human body. The sensor will not detect objects consist-  
ing of a low reflective material (e.g., an object coated  
with black rubber, etc.) or of a highly reflective material  
Pass directions  
Object  
Object  
stands for pass direction of the target object.  
Notes for Motion Sensor  
1. Ambient operating conditions  
3. Concerning power supply-superimposed noise  
Use a regulated power supply as the power supply.  
Otherwise, power supply-superimposed noise may cause  
the sensors to malfunction. The levels of noise which the  
sensor can withstand is given below.  
1) Temperature: Refer to the absolute maximum ratings  
for the temperature of each individual sensor.  
2) Humidity: 15% to 85% RH (No freezing nor condensa-  
tion at low temperature)  
3) Atmospheric pressure: 86 to 106 kPa  
MA motion sensors: ±200 V (50ms, 1µs wide square  
waves)  
MP motion sensors: ±20 V (50ms, 1µs wide square  
waves)  
4) The sensors do not have a water-proof or dust-proof  
construction. Depending on the ambient operating con-  
ditions, some means of providing protection from water  
and dust and preventing the formation of ice and con-  
densation must be provided prior to using the sensors.  
5) Take care to avoid exposing the sensors to heat, vibra-  
tion or impact since malfunctioning may result.  
2. Concerning external surge voltages  
4. Drop damage  
If the sensor is dropped, damage can occur resulting in  
incorrect operation. If dropped, be sure to do a visual  
check of the exterior for noticeable damage and check  
the operation characteristics for faulty operation.  
Since the internal circuitry may be destroyed if an exter-  
nal surge voltages is supplied, provide an element which  
will absorb the surges. The levels of the voltage surges  
which the sensor can withstand is given below.  
MA motion sensors: 500 V (±1.2 x 50µs unipolar full-  
wave voltage)  
5. Concerning the circuit sides  
Since the circuit sides given in this catalog are not pro-  
tected in terms of circuit design, check out the perfor-  
mance and reliability of the circuits prior to using the sen-  
sors.  
6. The technical information contained in this catalog is  
used to explain general operation and use of the  
products. By this usage, neither our company nor  
any third party grants the right to use intellectual  
property copyrights or any other copyrights.  
MP motion sensors: Within the supply voltage given in  
the absolute maximum ratings.  
SAFETY PRECAUTIONS  
Head the following precautions to prevent injury or accidents.  
• Do not use these sensors under any circumstances in  
which the range of their ratings, environment conditions  
or other specifications are exceeded. Using the sen-  
sors in any way which causes their specifications to be  
exceeded may generate abnormally high levels of heat,  
emit smoke, etc., resulting in damage to the circuitry  
and possibly causing an accident.  
• Before connecting a connector, check the pin layout by  
referring to the connector wiring diagram, specifications  
diagram, etc., and make sure that the connector is con-  
nected properly. Take note that mistakes made in con-  
nection may cause unforeseen problems in operation,  
generate abnormally high levels of heat, emit smoke,  
etc., resulting in damage to the circuitry.  
• Do not use any motion sensor which has been disas-  
sembled or remodeled.  
• The sensor has two malfunction modes: short circuit  
and open.  
The short circuit mode may be triggered by an increase  
in temperature. In order to ensure safety, especially in  
important applications, please consider suitable safety  
measures such as a protective circuit or protection  
device.  
– Various safety machines and devices  
Traffic signal lights  
– Crime and disaster prevention devices  
– Control devices and other devices that concern the  
safety of trains and vehicles.  
– Other important devices  
Passive infrared type MP Motion Sensor ‘  
Circuitry  
See here as well!  
Q
Q3  
Q5  
Q6  
Q7  
How should the sensor be wired?  
1
1. Pin functions are as follows:  
Vdd Power source (+)  
GND Power source (-)  
Out Output terminal  
A
2. Connect the pins as follows:  
Connect the (+) terminal of the power source to Vdd.  
Connect the (-) terminal of the power source to GND.  
1) Digital output type  
2) Analog output type  
Vdd  
Sensor  
Vdd  
GND  
Out  
Sensor  
Load  
GND  
Microcomputer  
and A/D  
Out  
converter, etc.  
lout : MAX. 100 µA  
RL  
I out : Max. 50 µA  
See here as well!  
Q
Can the circuit stabilization time (wait  
time) be shortened?  
2
No.  
The circuit stabilization time is the time required for the internal circuit to  
stabilize after the power is turned on. During this time correct detection can-  
not take place and the output is unstable.  
A
ON  
OFF  
Power supply  
Detection state  
ON  
Sensor output  
OFF  
Right here!  
Circuit stability time  
MAX. 30 sec.  
’Questions and Answers Circuitry  
MP Motion Sensor  
See here as well!  
Q
Can the AC load be turned on and off  
directly?  
3
This is not possible with our standard product.  
Use a relay or SSR at the output of the MA Motion Sensor to turn the AC  
load on or off.  
Please refer to the following circuits when a timer is required in your design.  
A
Circuit example  
Refer to the following circuits.  
Mechanical  
Relay  
1. For mechanical relay drive  
Vdd  
Sensor  
+
GND  
+
-
Out  
lout : MAX. 100µA  
2. For SSR drive  
Vdd  
Sensor  
GND  
Out  
lout : MAX. 100µA  
See here as well!  
Q
I would like to use an AC power source  
for the input power supply.  
4
This is not possible with our  
standard product.  
A
If an AC power source is necessary,  
please consult us.  
Please consult us!  
See here as well!  
Q
Q1  
Are there any products with an operating  
voltage of 24 V DC or 12 V DC?  
5
We do not have any standard products with these operating  
voltages.  
A
Use a regulator or other circuit to  
transform the voltage to 5 V DC.  
6 to 24  
V DC  
5V DC  
5V DC regulator  
Circuit example  
GND  
GND  
See here as well!  
Q
Q1  
I would like to use multiple sensors. Is it possible  
to design a common circuit for the sensors?  
6
MP Motion Sensor  
Yes. Be sure to connect the  
sensors in parallel.  
Vdd  
Out  
100K  
GND  
A
Refer to the circuit at right.  
MP Motion Sensor  
Vdd  
Out  
Connect us in  
parallel!  
100K  
100K  
GND  
MP Motion Sensor  
Vdd  
Out  
GND  
Signal processing circuit  
(microprocessor, etc.)  
’Questions and Answers Circuitry  
MP Motion Sensor  
See here as well!  
Q
How do I set the output time (timer)?  
7
Recent devices come with built-in microprocessors. Use the  
microprocessor's timer function to set the output time.  
A
If the device doesn't have a built-in microprocessor, refer to the following  
timer circuit.  
5V  
REG  
Input voltage  
Vdd  
+
47µ  
+
(5VDC)  
10µ  
0.1µ  
0.1µ  
0.1µ  
GND  
10K  
47K  
Connection to  
motion sensor  
Relay  
0.1µ  
+
10µ  
3
2 16  
9
1
The transistor  
Out  
turns on when  
the sensor  
detects some-  
thing  
10  
11  
13  
R
0.1µ  
15  
14  
74HC  
123etc.  
C
GND  
8
Select a transis-  
tor to match the  
relay  
Timer IC  
Timer time = R×C  
Note 1) Each timer IC manufacturer requires different values for the resistance (R) and  
capacitance (C) used for the time setting. Check with the manufacturer for  
these values before designing the circuit.  
Note 2) This is the reference circuit which drives the MP motion sensor. Please note  
that we bear no responsibility for any damages or loss arising from the use of  
this circuit. Install a noise filter for applications requiring enhanced detection  
reliability and noise withstanding capability.  
Differences in the specifications of electronic components to which the units  
are connected sometimes affect their correct operation; please check the units‘  
performance and reliability for each application.  
Performance  
See here as well!  
Q
Is light for motion detection constantly  
emitted from the lens?  
8
No.  
The ‘  
’ MP Motion Sensor is a passive infrared sensor, which  
A
means that it does not emit infrared radiation to detect motion. Instead, the  
sensor operates by receiving infrared radiation emitted from the moving  
body. This is why it is called a "passive type" sensor.  
Detection!  
Infrared radiation  
Temperature  
Infrared radiation  
difference  
10 µm infrared  
radiation  
Movement  
See here as well!  
Q
The detection distance in the catalogue is  
given as a "maximum". Will the sensor  
detect anything beyond this distance?  
Q10  
Q11  
Q36  
Q42  
9
It may.  
The sensor is rated for "detection or no detection" based on specific input  
conditions. The meaning of "Standard type, maximum 5 m" and "Slight  
motion type, maximum 2 m" in the catalogue is "the maximum distance at  
which detection is guaranteed".  
A
The sensor detects motion based on the difference between the ambient  
temperature and the surface temperature of the person that entered the  
detection area, and the conditions of each will give rise to small variations  
in detection performance.  
’Questions and Answers Performance  
MP Motion Sensor  
See here as well!  
Q
The detection of the standard type is  
5 m. Can the detection distance be short-  
ened?  
Q9  
Q39  
Q42  
Q11  
Q36  
10  
No.  
The best way to limit the detection distance is to change the angle of  
attachment of the sensor so that it points toward an obstacle such as the  
ground, a wall, or the ceiling.  
A
Setting the sensor so it will not detect  
people who are far away  
For detection in only a limited area  
Sensor  
Sensor  
Use tube  
Use slit  
Detection area  
Detection area  
See here as well!  
Q
Q9  
Q10  
Q36  
Q42  
Can the sensitivity be adjusted?  
11  
The sensor does not include a sensitivity adjustment func-  
tion.  
A
Are there  
ambient  
temperature  
changes?  
What is  
the  
detection  
area?  
See here as well!  
Q
Is performance affected by differences in  
operating voltage?  
12  
Detection performance is not affected, but the output volt-  
age will change.  
A
See here as well!  
Q
How long is the interval (response time)  
between a person moving and detection  
of the movement?  
13  
Approximately 0.5 seconds.  
A
<Timing chart>  
Standard type  
Human body  
Element output  
(Open collector)  
Reference voltage  
Amplifier output  
Reference voltage  
Sensor output  
(comparator output)  
’Questions and Answers Performance  
MP Motion Sensor  
See here as well!  
Q
What is the difference between the detec-  
tion area and the detection zone?  
14  
Detection zone  
The zone that people are detected in. In the sensor area there are four  
A
infrared elements.  
A lens of one of these elements projects and this creates four detection  
zones.  
Detection area  
The detection area treats the four detection zones as a group and is the  
number of lenses of the projected detection zones collection.  
For standard type sensor  
Detection area diagram for standard-type sensor  
One optical axis  
Four passive infrared elements  
Four Detection zone  
Number of lenses  
Number of detection zones  
4
X-Y cross-section of standard type  
The detection area projected onto a flat surface 2.5 m from the sensor.  
The number of pattern types  
(
) of detection  
zones is also the number of lens  
shape types.  
The standard type has a detec-  
tion area consisting of 4 detec-  
tion zones 16 single focusing  
lenses = 64 detection zones,  
with five types of detection zone  
patterns.  
See here as well!  
Q
For digital output type, if a person keeps mov-  
ing in the detection area and the detection  
state persists, what kind of output appears?  
Q16  
15  
ON/OFF is repeatedly output.  
When the detection state persists, the characteristics of the passive infrared  
element cause it to repeatedly output an analog waveform as shown in the  
time chart below. The output is amplified by the amplifier circuit, and when it  
exceeds a certain reference level (reference voltage), detection results and  
ON is output. When the reference level is not exceeded, OFF is output.  
A
Timing chart  
Human body  
Element output  
(Open collector)  
Reference voltage  
Amplifier output  
Reference voltage  
Sensor output  
(comparator output)  
See here as well!  
Q
Q15  
What is the duration of output from the  
16  
sensor after one detection?  
At least 10 ms.  
The output from the passive infrared element will vary depending on the  
speed of the detected object and the difference between the temperature of  
the object and the ambient temperature.  
The output from the passive infrared element is amplified by the amplifier. If  
the amplified output exceeds the reference voltage, a person is regarded as  
being detected and ON is output. For this reason the duration of one output  
is not fixed; however, it lasts at least 10 ms due to circuit characteristics.  
A
Timing chart  
Human body  
Element output  
(Open collector)  
Reference voltage  
Amplifier output  
Reference voltage  
Sensor output  
(comparator output)  
’Questions and Answers Performance  
MP Motion Sensor  
See here as well!  
Q
How much time elapses before OFF is  
output when the person stops moving or  
leaves the detection area?  
Q15  
Q16  
17  
From 10 ms to several seconds.  
A
See here as well!  
Q
Why doesn't the sensor have a timer  
circuit for setting the output time (timer  
time)?  
Q7  
18  
Recently almost all devices have a built-in microprocessor, and we decided  
that the timer circuit included in previous sensors (area type Furumai sen-  
sor) is not necessary because the microprocessor's timer function can be  
used.  
A
If you need a timer circuit, refer to Q7.  
See here as well!  
Q
What infrared wavelengths can be detect-  
ed?  
19  
As indicated below, the sensor uses a filter that transmits 5µm or longer  
wavelengths. Therefore, long wavelengths equal to or greater than 5µm  
can be detected.  
A
Wavelength characteristics  
Near Intermediate  
infrared infrared  
Far  
infrared light  
light  
light  
Visible light  
The human  
(Direct sunlight)  
6000°K  
body emits  
4
10  
(Incandescent lamp)  
10 µm wave-  
3000°K  
Radiant  
exitance  
2
10  
1
lengths!  
Filter characteristics  
(w/cm)2  
(Human body)  
300°K  
-2  
-4  
10  
10  
0.5 1.0 2.0 5.0 10 20  
Wavelength (µm)  
See here as well!  
Q
When you say "a temperature difference  
between the object and the background of 4°C  
or higher", what does "background" mean?  
Q21  
Q44  
Q45  
Q37  
Q43  
20  
The background is the temperature of the environment surrounding (but not  
including) the object to be detected, such as the ground, walls, and ceiling.  
When a person enters the sensor's detection area, the quantity of infrared  
radiation incident on the sensor changes by an amount equivalent to the  
temperature difference between the person and the background. The MP  
motion sensor ‘NaPiOn’ detects a person by detecting this change in inci-  
dent infrared radiation. In other words, the sensor operates in response to  
the difference in temperature between the human body, a source of heat,  
and the background such as the floor and walls.  
A
Detection  
Background  
Reference date Wearing long-sleeve work clothes  
60  
50  
40  
Thigh  
Chest  
Hair  
30  
Face  
Background  
20  
10  
0
0
5
10 15 20 25 30 35 40 45 50 55  
Note: Temperature difference with respect  
to background  
Ambient temperature (°C)  
’Questions and Answers Performance  
MP Motion Sensor  
See here as well!  
Q
Q20  
Q24  
Q43  
Q44  
Q45  
Q46  
Does the sensor respond only to people?  
21  
No.  
The sensor may also react to changes in air current caused by animals,  
sudden temperature changes, heaters, and air conditioners, etc.  
For more details, refer to the cautions in the catalogue.  
A
MA Motion Sensor Questions and Answers Using Sensors  
See here as well!  
Q
Q20  
Should I assume that detection is not pos-  
30  
sible in direct light?  
The maximum ambient operating illumination of the sensor is 30,000 Lx.  
Even in bright sunlight, and even if light shines directly on the sensor or on  
the object of detection, the sensor will operate correctly as long as the illu-  
mination does not exceed 30,000 Lx.  
However, if an inverter light is directly within the detection area of the sen-  
sor (plus or minus several degrees), the sensor will not operate correctly.  
This is because the sensor cannot distinguish between light emitted from  
the sensor and light from the inverter light.  
A
The sensor will operate correctly in the direction of  
the sun as long as its optical axis does not point  
directly toward the sun. The field of detection of the  
sensor is plus or minus several degrees, so there  
will be no problem if the sensor’s optical axis is  
shifted 15° away from the sun.  
Please shift the  
optical axis!  
See here as well!  
Q
Q21  
Is there an easy way to verify sensor  
31  
operation?  
Resistor  
LED  
Connect the sensor  
Output  
as shown at right to  
MA  
have an LED illumi-  
A
+
+
+
+
Motion  
Sensor  
GND  
nate when the sen-  
sor detects a person  
or object.  
Power source  
R
*
LED  
Output  
MA  
* Use a resistor value appropriate  
for the current that is to flow  
through the LED.  
Motion  
Sensor  
GND  
+
6V DC  
Power source  
See here as well!  
Q
Q9  
Q27  
Can the sensor be used if the front is half  
covered?  
28  
The area reflective type MA Motion Sensor is a distance measurement type  
sensor and thus it tends not to be affected by the intensity of light reflected  
from the detected object. For this rea-  
A
son, the sensor can detect if its front  
face is half covered; however, perfor-  
mance is noticeable impaired.  
Before using the sensor, verify  
detection performance using  
the object you with to detect.  
See here as well!  
Q
Is it okay to wipe the sensor with ethanol?  
29  
Yes.  
The front face of the lenses and the case are made of polycarbonite.  
In general, this material is resistant to water, alcohol, oil, salt, and weak acids.  
Alcohol: methanol, ethanol, etc.  
A
Oils and fats: turbine oil, grease, etc.  
Do not use the following chemicals:  
Gasoline, thinner, ammonia, caustic soda, toluene  
MA Motion Sensor Questions and Answers Using Sensors  
See here as well!  
Q
Q9  
Q23  
Q28  
What points are important when installing  
a cover (filter) on the front of the sensor?  
27  
Required cover (front filter) specifications  
Use a cover that transmits infrared light (wavelength: 900 nm).  
Material: Acrylic, glass, or similar material  
A
Surface condition: To prevent light dispersion, the surface roughness  
should be 1µm R-Max (ground glass is not acceptable)  
Color:  
As long as the material optically transmits infrared light  
(wavelength: 900 nm), any visible color is acceptable. (You  
must be able to see through the plate.)  
Thickness: Use a plate with a maximum thickness of 2 mm.  
(If the cover is too thick, dirt on the cover may accidentally  
trigger detection.)  
How to install the cover  
Install the cover so that it is parallel to the front face of the sensor.  
Light projector  
and receptor  
Connector  
Cover  
Sensor  
If separated by more than 20 mm, the cover may be detected.  
(For part No. “AMB1***”, do not separate by more than 5mm).  
Max. 20mm  
Covers of non-uniform thickness  
As shown below, the detection distance can be lengthened by placing a  
cover or filter of non-uniform thickness in front of the sensor to produce a  
prism effect.  
Lens  
<Example>  
Cover (filter)  
Reflective plate  
Emitting element  
Receptor element  
Extended detection  
distance  
Lens  
See here as well!  
Q
Q5  
Q8  
What points are important when installing  
the motion sensor?  
26  
The MA Motion Sensor is designed primarily for indoor use.  
The number of detection times and the presence of an object  
A
Noise from external sources and other factors can cause the unex-  
pected output of a detection signal. For applications requiring greater  
detection reliability, we recommend that you design the circuit so that  
the device activates only after several detection signals are output, not  
just one.  
How to install the sensor  
<Recommended installation direction>  
Install the sensor so that it points  
in the direction shown at left with  
respect to the direction of entry of  
Object  
Pass directions  
the object.  
Object  
Object  
stands for pass direction of the target object.  
<Recommended installation height>  
The infrared beam emitted from the sensor spreads over a certain  
angle with respect to the front of the sensor. If you install the sensor  
so that the beam travels parallel to the installation surface (such as  
a wall, floor or ceiling), we recommend that you raise the sensor  
slightly off of the surface (about 50 mm). (Refer to Q8)  
Front cover  
Wiring length  
To minimize the effects of noise, keep the wiring as short as possible.  
If the sensor is to be used in a high-noise environment, add capacitors  
to the sensor power input and the output.  
There is a  
lot to check,  
Effects other than the detection area  
but I’m  
counting on  
you!  
Operating environment  
Performance of power source  
MA Motion Sensor Questions and Answers Using Sensors  
Using Sensors  
See here as well!  
Q
Q9  
Q25  
Q27  
Is outdoor use possible?  
24  
Basically, you should not.  
This sensor is designed for indoor use (for common indoor electronic  
devices). If you need to use a sensor outdoors, take measures to water-  
A
proof the sensor and protect it  
Dust  
protection  
Waterproofing  
from dust, condensation, and  
freezing. There are many causes  
of temperature changes out-  
doors, and detection errors may  
result.  
Please  
protect me  
Condensation/  
freezing  
See here as well!  
Q
Q24  
Q27  
What should be done about waterproof-  
ing?  
25  
The sensor itself is not waterproof. When  
incorporating the sensor into the device,  
design the structure to be waterproof.  
However, please use a material in front of  
the sensor such as glass or acrylic that  
allows the transmission of infrared rays.  
A
I’m not  
waterproof!  
See here as well!  
Q
Q14  
What is the non-sensitivity zone?  
Q15  
Q27  
23  
This is the area extending from several millimetres in front  
of the sensor to several tens of millimetres where the sen-  
sor does not operate.  
A
The sensor detects the presence of an object based on the position of entry  
in the receiver element of the light reflected off the object. If the object is in  
immediate proximity to the sensor, the light emitted from the sensor does  
not return to the receiver element and the object is not detected. As the  
sensor will be incorporated into a device, it is frequently used with a front  
cover, and the non-sensitivity zone keeps the cover from being detected  
and helps the sensor operate normally.  
This is  
the non-sensitivity zone!  
MA Motion Sensor Questions and Answers Terminology  
Terminology  
See here as well!  
Q
What is open collector output?  
22  
A transistor is used in the output. When the sensor detects  
a person or object, the transistor turns on and current flows  
from the collector to the emitter, outputting a signal.  
A
When open collector output is used, the current flow  
and voltage applied to the load connected to the  
output can be set as desired. This enables wide  
range of use in sequencers and other devices.  
Non-detection state  
(Transistor is OFF)  
Detection state  
(Transistor is ON)  
Schematic of output circuit  
Sensor  
Sensor  
Output  
Output  
Current  
flows  
Collector  
Emitter  
Base  
IC  
IB  
IB]0  
GND  
GND  
IB: Base current  
IC: Collector current  
(
)
Image of output circuit  
Sensor  
Sensor  
Output  
Output  
Turns on by  
the detection  
signal.  
GND  
GND  
See here as well!  
Q
Q18  
What is your policy with respect to aging  
deterioration?  
19  
We estimate the life of the sensor based on testing in the operating environ-  
ment of the components having the greatest effect on operation.  
In the case of the MA Motion Sensor, the light emitting diode has the most  
effect on operation. We estimate the life of the diode based on accelerated  
reliability tests (THB tests, etc.). The tests indicate that the sensor should  
operate without problem for 10 years or more, a result that past products  
have held up.  
A
See here as well!  
Q
Q30  
How bright is 30,000 Lx?  
20  
The brightness  
inside a window on a  
clear summer day.  
A
See here as well!  
Assuming battery power will be used,  
what is the life of the batteries?  
Q
21  
Conditions  
Typical current consumption over one month of use.  
3240 mA H/month typ. (Built-in oscillation circuit type)  
106 mA H/month typ. (External triggering type on 1 sec/time of trigger period)  
<Comparative table of battery lives>  
A
Life(months) of  
Life(months) of  
Battery type  
built-in oscillation external trigger-  
ing type  
Manufacturer Model number Size(one battery)  
Voltage  
3 V (x 2 batteries) 5000 mAh  
6 V (x 1 battery) 1200 mAh  
Capacity  
circuit type  
BR-CT2P  
BR-P2P  
ø26x50  
1.5  
47.2  
Matsushita  
Battery  
Lithium  
ø19.5x36x2  
0.4  
1.2  
1.2  
11.3  
38.0  
37.7  
Industrial  
Alkaline  
LR20(PG) ø34.2x61.5 1.5 V (x 4 batteries) 4030 mAh  
ø34x61  
1.2 V (x 5 batteries) 4000 mAh  
Sanyo Electric N-4000D  
Nickel cadmium  
If you need a low current consumption battery, please consult us.  
MA Motion Sensor Questions and Answers Performance  
See here as well!  
Q
How long does it take (response time) for the  
detection signal to be output after a person  
or object enters the detection area?  
16  
A maximum of 9 ms.  
The built-in oscillation circuit type is set to measure at a maximum period of  
9 ms, and thus the response time is a maximum of 9 ms.  
However, the average is about 8 ms.  
A
ON  
Object (person)  
OFF  
ON  
Output trigger  
(Transistor output)  
OFF  
9ms, maximum  
See here as well!  
Q
If the detection state persists, what hap-  
pens to the output?  
17  
The output remains in the ON state.  
A
ON  
Object (person)  
OFF  
ON  
Output trigger  
(Transistor output)  
OFF  
8ms, average  
See here as well!  
Q
Q19  
Q24  
Does the sensor have good weather  
resistance?  
18  
The front window of the MA Motion Sensor is made with polycarbonite. This  
plastic has particularly superb weather resistance even compared to other  
plastics.  
A
See here as well!  
Q
Q13  
Q14  
Q23  
What are the characteristics of the detec-  
tion area?  
15  
The characteristics are shown in the following diagrams.  
A
Short type (AMB14*****)  
Reading the graph  
Example of the detection  
area of the 10 cm type with  
a nominal detection dis-  
tance of 8 cm (model  
#AMB140*08)  
Nominal detection area  
Y
Y
Detection area within  
10 cm detection area  
dotted lines  
1
100  
90  
100  
When an object covers  
the entire detection area,  
9 cm  
8 cm  
7 cm  
90  
detection occurs.  
Object  
80  
80  
Detection area of nomi-  
nal detection distance of  
8 cm  
Detection  
area within  
70  
70  
Reflective plate 200 x  
dotted lines  
200 mm  
(Reflectance: 90%)  
6 cm  
5 cm  
60  
50  
40  
30  
20  
10  
0
Note: If only enters part  
60  
of detection area, detec-  
tion does not occur.  
50  
Y
Detection area within  
solid lines  
40  
When object enters part  
of detection area, detec-  
Reflective  
plate  
30  
20  
10  
0
tion occurs.  
Detection  
area within  
solid lines  
X
Object  
20 10  
0
10 20  
X
20 10  
0
10 20  
X
Detection width W (mm)  
Detection width W (mm)  
Middle type (AMB24*****)  
Long type (AMB34*****)  
Nominal detection area  
Nominal detection area  
Y
Y
200 cm detection area  
80 cm detection area  
2000  
800  
70 cm  
60 cm  
50 cm  
40 cm  
30 cm  
20 cm  
1750  
1500  
700  
150 cm  
100 cm  
50 cm  
600  
Reflective plate 200  
Reflective plate 500  
x 200 mm  
1250  
500  
x 500 mm  
(Reflectance: 90%)  
(Reflectance:90%)  
Y
1000  
750  
500  
250  
0
400  
300  
200  
100  
0
Y
Reflective  
plate  
Reflective  
plate  
X
X
40 30 20 10  
0
10 20 30 40  
X
40 30 20 10  
0
10 20 30 40  
X
Detection width W (mm)  
Detection width W (mm)  
MA Motion Sensor Questions and Answers Performance  
See here as well!  
Q
Can detection take place when the object  
is closer than the rated detection dis-  
tance?  
Q13  
Q15  
Q23  
14  
Yes.  
The sensor emits an infrared beam, measures the distance to the person  
(object) by means of the light reflected back, and determines whether or not  
the object is within the detection distance.  
However, with the exception of the non-sensitive zone in the immediate  
proximity of the sensor where light reflected off the object cannot return to  
the receiver lens, the sensor detects objects anywhere within the rated  
detection distance.  
A
Rated detection  
Non-sensitive zone  
distance  
Several millimeters to  
several centimeters  
Active zone (detection zone)  
Infrared radiation  
Projector  
lens  
Does not return to receiver  
lens  
Receiver  
lens  
Reflected light  
(returns to receiver lens)  
See here as well!  
Q
Q13  
Does temperature affect the detection dis-  
tance?  
12  
Yes.  
The area reflective type MA Motion Sensor detects an object based on the  
position of the infrared beam that reflects off of the object and returns to the  
sensor. When the temperature changes, differences in the coefficients of lin-  
ear expansion of the sensor components can cause the distance between  
the lenses, and the distance between the projector and receiver elements,  
to expand or contract. This changes the position of the returning infrared  
beam and thus the detection distance.  
A
The amount of the change is several percent over the operating tempera-  
ture range of the sensor (–25°C to 75°C).  
See here as well!  
Q
Is it possible to select a new setting for  
the detection distance after receiving the  
sensor?  
Q12  
Q14  
Q15  
13  
No, you cannot set the detection distance once the sensor  
has been shipped from the factory.  
A
The rated detection distance is determined by the lens position adjustment.  
Since this procedure is done at the factory before shipping you cannot set  
this afterwards once the sensor has been shipped. Please select a sensor  
according to your application with the appropriate detection distance from  
the products provided below.  
AMB  
*
*
*
*
Area reflective type MA Motion Sensor  
Rated detection distance  
Type  
Short type  
Middle type  
Long type  
Model number  
02  
03  
04  
05  
06  
07  
-
-
-
20 cm  
30 cm  
40 cm  
50 cm  
60 cm  
70 cm  
80 cm  
-
-
-
-
-
-
-
-
-
-
-
-
-
30 cm  
40 cm  
50 cm  
60 cm  
70 cm  
80 cm  
90 cm  
100 cm  
110 cm  
120 cm  
130 cm  
140 cm  
150 cm  
160 cm  
170 cm  
180 cm  
190 cm  
200 cm  
5 cm  
6 cm  
7 cm  
8 cm  
08 (No display on middle type)  
09  
10 (No display on short type)  
11  
12  
13  
14  
15  
16  
17  
18  
19  
9 cm  
10 cm*  
11 cm (Note)  
12 cm (Note)  
13 cm (Note)  
14 cm (Note)  
15 cm (Note)  
-
-
-
-
Note:  
Not kept in stock.  
Please consult us.  
20 (No display on long type)  
MA Motion Sensor Questions and Answers Performance  
See here as well!  
Q
Q24  
Q27  
Q28  
Does dirt on the front cover (filter) affect  
performance?  
9
Dirt has almost no effect.  
The MA Motion Sensor takes the detected differ-  
ence in distance between an object with 90%  
reflectance and an object with 18% reflectance as  
“distance measurement error”. Even if the reflected  
light intensity decreases to 1/5 its original value  
due to dirt, the distance measurement error will still  
be under this value.  
A
No problem!  
See here as well!  
Q
Q11  
What is the output wavelength of the sen-  
sor’s infrared LED?  
10  
The output reaches a momentary (max. 10 µs) power of 180 mW, and the  
wavelength is approximately 900 nm. This is about the same as a typical  
remote control.  
A
See here as well!  
Does a remote control ever cause detec-  
tion errors?  
Q
11  
The sensor uses the same type of light emitting element as a remote con-  
trol, and as such detection errors are possible. However, to produce a  
detection error the following conditions must be met:  
A
Careful,  
a detection  
* The remote control must be within the field of  
detection of the sensor.  
* The timing of remote control operation must coin-  
cide with the interval of several tens of microsec-  
onds that the MA Motion Sensor accepts light.  
* Sufficient power is required.  
error may  
occur!  
Due to these conditions, random operation of a remote control pointed  
toward the MA Motion Sensor will result in erroneous detection only once  
every several tens of times.  
See here as well!  
Q
Q7  
Q26  
Q27  
Q28  
Why is a detection signal output even  
though no object is in the detection area?  
Q9  
8
Q11  
Q12  
1. Is there anything in front of the MA Motion Sensor with a  
reflective surface such as a mirror, metallic plate, or mar-  
ble?  
A
Just as light reflects in a mirror, the infrared light emitted by the sensor will  
reflect off of an object with a reflective surface and return to the sensor.  
If this occurs, change the angle of attachment of the sensor slightly (no  
more than several degrees) as shown below.  
Be aware of  
reflective  
surfaces!  
Up and  
down  
directions  
2. Is the sensor detecting the surface on which it is  
installed?  
The sensor emits infrared light in the form of a spot beam that gradually  
expands. The beam projector element is in the bottom part of the sensor,  
and thus if the sensor is installed on a surface parallel to the beam (wall,  
floor or ceiling), the beam may hit the surface and reflect back into the sen-  
sor. We recommend that you raise the sensor slightly off of the installation  
surface (approx. 50mm).  
Sensor  
Detection error  
Projected spot beam  
Receiver element  
Lens  
Projector element  
Recommended installation  
MA Motion Sensor  
Raise approximately 50mm  
Surface parallel to infrared beam  
(wall, floor, ceiling, etc.)  
MA Motion Sensor Questions and Answers Performance  
Performance  
See here as well!  
Q
Q8  
Is detection performance affected by the  
7
type of clothing worn?  
The effect of clothing is negligible.  
Light intensity type sensors, which have been in common use, detect an  
object based on the amount of reflected light and for this reason tend to be  
affected by the type of clothing worn. The MA Motion Sensor is a distance  
measurement type sensor, and variations in the detected distance due to  
differences in clothing material or color are negligible.  
A
Stable detection is possible of objects having a reflectance  
ranging from 90% to 18%.  
The reflectance of clothing and body parts is indicated below.  
* Objects with a high reflectance  
White cloth, white shirts, white sport shirts  
* Intermediate objects  
Detectable objects  
Objects with a colored pattern  
* Objects with a low reflectance  
Black formal clothing, fluffy or furry materials such  
as black fur, lustrous materials such as black lame  
Mirrors, objects with metallic coating, mirror-like  
objects in which you can see your reflection (black  
car body, metal plates)  
Objects that cannot  
be detected  
Reference:  
Reflectance of human skin: Approximately 40%  
Reflectance of hair: 3% to 40% (average 5%)  
Detection  
White paper  
Reflectivity:  
Approximately 90%  
Hair  
Reflectivity: 3% to 40%  
(average 5%)  
See here as well!  
Q
I need to design pulse generating circuit  
using the external trigger type. Could you  
show an example drive circuit?  
Q7  
6
Example drive circuit  
A
+
Power source  
3
R1  
2
8
1
5
4
6
7
External  
trigger input  
(Note 2)  
1
R2  
Timer IC  
4
Output  
(Note 1)  
µPC 1555  
NJN 555  
3
2
GND  
0.1  
µF  
Notes: 1. The output transistor has an open collector structure.  
Detection status: Output transistor ON (connected to GND)  
Non-detection status: Output transistor OFF (open state)  
Notes: 2. The status of the external trigger input is as follows:  
Open at the high level  
GND (less than 0.8V) at the low level  
Under no circumstances must a high-level voltage be applied.  
Notes:  
This is a sample circuit for driving an MA Motion Sensor. Noise protection was not  
taken into consideration.  
To increase reliability and protect against noise, add a noise filter to the input. In  
addition, add a circuit that accepts the output in synchronization with the start sig-  
nal and issues a detection signal when the same output is repeated several times  
in succession.  
Please note that we bear no responsibility for any damages or loss arising from the  
use of this circuit.  
MA Motion Sensor Questions and Answers Circuitry  
See here as well!  
Q
Can a power source voltage other than  
4
5 V be used?  
Yes.  
Two types are available:  
A
1) 5V DC type (4.5 V to 6.5 V DC)  
2) Free power source type (6.5 V to 27 V DC)  
These two types provide compatibility with  
most common electronic devices.  
Free power  
source type  
6.5 V to 27V  
5 V DC type  
4.5 V to 6.5 V  
See here as well!  
Q
Q26  
I would like to extend the wiring to 3  
meters. Is this possible?  
5
In order to protect the internal circuit and reduce the influence of noise from  
the surrounding environment keep the wiring as short as possible within  
three meters. If inverters, motors, switching devices, or other devices are in  
close proximity, special caution is needed. If the sensor is going to be used  
in an environment with considerable noise, add a capacitor to the power  
input pin of the sensor.  
A
Keep the  
wiring as short  
as possible!  
See here as well!  
Q
Q2  
What kind of circuit should be used to set  
the time (timer time) of the output signal?  
3
Refer to the following circuit.  
A
Example of a relay drive circuit using a timer circuit  
5V  
REG  
Input voltage  
Vdd  
+
47µ  
+
(5VDC)  
10µ  
0.1µ  
0.1µ  
0.1µ  
GND  
10K  
47K  
Connection to  
motion sensor  
Relay  
0.1µ  
+
10µ  
3
2 16  
9
1
The transistor  
Out  
turns on when  
the sensor  
detects some-  
thing  
10  
11  
13  
R
0.1µ  
15  
14  
74HC  
123etc.  
C
GND  
8
Select a transis-  
tor to match the  
relay  
Timer IC  
Timer time = R×C  
Note 1) Each timer IC manufacturer requires different values for the resistance (R) and  
capacitance (C) used for the time setting. Check with the manufacturer for  
these values before designing the circuit.  
Note 2) This circuit is an example circuit for driving the MA Motion Sensor. Please note  
that we bear no responsibility for any damages or loss arising from the use of  
this circuit. To increase reliability and noise tolerance, add noise filter. Note that  
specification changes in the electronic components may prevent the circuit  
from operating correctly. Be sure to verify performance and reliability when  
designing the circuit.  
Area reflective type MA Motion Sensor  
Circuitry  
See here as well!  
Q
I would like to use two sensors simultane-  
ously to expand the detection area. Will  
the sensors interfere with each other?  
1
Yes. In order to avoid reciprocal interference when emissions occur simulta-  
neously, install the MA motion sensors (built-in oscillation circuit type) with  
the following spacing, or use an external trigger type for which operation  
can be adjusted by the trigger signal input.  
A
Product number  
AMB1***  
AMB2***  
AMB3***  
Standard detection  
distance  
Short type Middle type Long type  
Distance between  
sensors  
Leave some  
space between  
us!  
5 cm  
10 cm  
20 cm  
See here as well!  
Q
Q3  
How should I design the circuit for output  
using a relay?  
2
Refer to the following circuits  
A
Mechanical  
Relay  
1. Mechanical relay drive  
Output  
MA Motion Sensor  
GND  
+
+
Power supply  
2. For SSR drive  
Output  
MA Motion Sensor  
SSR  
GND  
+
+
Power supply  
See here as well!  
Q
Q20  
Q21  
Q43  
Q44  
Is detection performance affected by  
clothing?  
46  
Performance is slightly affected.  
The MP Motion Sensor detects the difference between the ambient temper-  
ature and the surface temperature of a person that enters the sensor detec-  
tion area; thus detection performance is slightly affected by the condition of  
the person and the ambient temperature. The human body emits more  
energy in the summer when people tend to wear clothing that exposes  
more of the body than in the winter, when  
A
only the face and hands may be exposed.  
Yes,  
there is a  
However, actual detection performance is  
difference!  
better in the winter because the lower  
ambient temperature has a greater effect  
on performance than the presence of more  
clothing. In general, changes in the ambi-  
ent temperature are of greater concern  
than clothing.  
See here as well!  
Q
Q1  
Q26  
Is there an easy way to verify sensor  
operation?  
47  
Connect the sensor as shown here to have an LED illumi-  
nate when the sensor detects a person.  
A
Vdd  
Sensor  
+
+
+
GND  
Out  
LED  
Resistor  
Resistor  
FET  
*1 Use a resistor  
value appropriate  
for the current that  
is to flow through  
the LED.  
Vdd  
GND  
Out  
Sensor  
+
5V DC  
100k  
(680)  
1
LED  
FET  
’Questions and Answers Using Sensors  
MP Motion Sensor  
See here as well!  
Q
Q20  
Q21  
Q22  
Q23  
Q46  
Does the ambient temperature affect  
detection sensitivity?  
43  
Yes.  
Seasonal changes in the ambient temperature change the sensitivity of the  
sensor. Detection becomes more difficult in the summer because there is  
less difference between the ambient temperature and the surface of the  
human body. In winter, the reverse is true.  
A
See here as well!  
Q
Does detection take place when the ambient temperature  
is higher than the human body? How about when the  
ambient temperature is the same as the human body?  
Q20  
Q21  
Q22  
Q23  
44  
Yes.  
The sensor operates by detecting temperature changes caused by the  
motion of a body of a different temperature than the ambient temperature.  
Therefore, detection takes place when the ambient temperature is higher  
than the human body. Detection is also possible even when the ambient  
temperature is the same as the human body because not all parts of the  
body are the same temperature and the differences are detected when the  
body moves.  
A
See here as well!  
Q
Q20  
Q21  
Q33  
Does sunlight affect performance?  
45  
Yes.  
When the sun suddenly shines or stops  
shining on the sensor, temperature  
changes occur. The sensor detects these  
changes and may output a detection sig-  
nal. Be sure to install the sensor in a  
location not exposed to sunlight.  
A
See here as well!  
Q
I would like to detect small animals like  
mice. What is the smallest object that can  
be detected?  
Q40  
41  
The minimum detection size is that of one multi-lens (a circle several mil-  
limetres in diameter) when the object is in immediate proximity to the MP  
Motion Sensor.  
Detection takes place when the object blocks part of the detection area and  
a temperature difference occurs. As the distance from the sensor increases,  
the detection area grows, and a larger object is necessary to create the  
temperature difference needed for detection.  
A
The minimum detection size depends on the distance from the object to the  
sensor and the magnitude of the temperature difference. Use the sizes indi-  
cated in the following x-y cross-section diagram as a reference.  
Standard type  
X-Y cross section  
TOP VIEW  
SIDE VIEW  
Y
Detection area  
Y
3m  
Detectionzone
5m  
16.404ft  
X
5m  
16.404ft  
50°  
9.843ft  
41°  
C
2
E
6.562  
2.5m  
8.202ft  
2.5m  
8.202ft  
1
3.281  
A
B
(Max. 5.66m)  
(Max. 18.570ft)  
D
X
4m  
3
2
1
1
2
3
4m  
13.123ft 9.843 6.562 3.281  
3.281 6.562 9.843 13.123ft  
0°  
0°  
1
3.281  
2
6.562  
2.5m  
8.202ft  
2.5m  
8.202ft  
3m  
9.843ft  
41°  
(Max. 7.42m)  
(Max. 24.344ft)  
50°  
5m  
16.404ft  
5m  
16.404ft  
The sensor turns on (activates) when a temperature change  
occurs in one or more of the above detection zones.  
See here as well!  
Q
Q10  
Q11  
Q36  
Will objects behind transparent panes  
such as glass or acrylic be detected?  
42  
No.  
Transparent glass  
The sensor can only detect wavelengths  
that are 5 µm or longer.  
Common materials such as glass can only  
transmit near infrared wavelengths up to 2  
µm, thus a person moving behind a glass  
window will not be detected.  
A
Detection area  
’Questions and Answers Using Sensors  
MP Motion Sensor  
See here as well!  
Q
Q32  
Q39  
Can a sleeping person be detected?  
38  
A person who remains completely still cannot be detected.  
However, detection is possible in the following instances:  
(Use the slight motion type)  
A
*Someone who frequently turns over in their sleep.  
*Someone sleeping in bed who  
occasionally moves his or her feet  
or hands.  
*The frequency of movement can  
be used to detect whether the  
person is awake or asleep.  
(To detect someone who is lying completely still, use an area reflective type MA  
motion sensor.)  
See here as well!  
Q
Q32  
Q38  
I need to detect both moving people and  
people standing still.  
39  
Use the high-sensitivity slight motion type.  
Detection of a moving person is easy (standard function).  
Although it is not possible to detect someone who is standing  
completely still, people almost never remain completely still.  
Even the slightest movement can be detected by the sensor.  
The slight motion type is designed for the purpose of detecting  
slight movements of the hands and head.  
A
See here as well!  
Q
Is detection possible when the distance  
between the person and the sensor is  
almost zero?  
Q10  
Q41  
40  
Yes.  
Do not  
cover the  
detection  
area!  
If a person enters the detection area, detection occurs.  
However, if the person is very close to the sensor, the person  
may cover the detection area and prevent the occurrence of  
temperature changes. In this case, detection will not occur.  
A
See here as well!  
Q
Q9  
Q10  
Q11  
Q42  
How can I change the detection area?  
36  
The detection area can be changed by changing the angle of attachment of  
the sensor, and by placing a slit in front of the sensor that limits the area  
detected. If you find it difficult to calculate the desired detection area, please  
consult us.  
A
Setting the sensor so it will not detect people who are far away  
Sensor  
Sensor  
Detection area  
Detection area  
For detection in only a limited area  
Use tube  
Use slit  
See here as well!  
Q
Q20  
Can the sensor be installed on a moving  
body?  
37  
No.  
The MP Motion Sensor is normally installed in a static location. When an  
object enters the detection area, the sensor detects changes in the amount  
of infrared radiation in the detection area. If the sensor were to move, it  
might mistake changes in the wall and floor temperature for a moving object  
of a different temperature and activate.  
A
’Questions and Answers Using Sensors  
MP Motion Sensor  
See here as well!  
Q
Q13  
Q33  
Q35  
Q42  
Q45  
How should the sensor be waterproofed?  
34  
The sensor itself is not waterproof. The following is an  
example of how it can be waterproofed.  
A
General waterproofing example  
Cover the entire sensor with a box, and use a polyethylene sheet for the front  
face. The thickness of the polyethylene sheet should be no more than 0.5  
mm. If any thicker, the sensitivity of the sensor will drop by more than half.  
Polyethylene sheet  
Caution:  
Sensitivity will fall. Be sure to  
verify that the sensor performs  
as desired in the actual condi-  
tions of use.  
Reference: infrared transmittance vs. polyethylene sheet thickness  
75  
λ = 9 µm  
70  
65  
60  
55  
50  
45  
40  
35  
30  
25  
20  
15  
10  
5
0
0
0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9  
1
1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8 1.9  
2
Thickness (mm)  
See here as well!  
Q
Q33  
Q34  
Does condensation ever form inside the  
metal package of the sensor?  
35  
In general, no. However, be sure to perform performance and  
reliability tests in the operating environment before com-  
mencing design.  
A
Dry air is sealed into the metal can package of the sensor, thus there is in  
general almost no moisture inside the metal can. However, if the sensor is  
to be used outdoors, take sufficient measures for waterproofing and protec-  
tion against dust, condensation and freezing.  
Using Sensors  
See here as well!  
Q
Q38  
Q39  
What is the difference between the stan-  
dard type and the slight motion type?  
32  
In general the standard type is for detection of large-scale motion, such as  
a person walking. The slight motion type is for small-scale movement such  
as slight movements of the hands or head of a person sitting.  
When you need uniform detection sensitivity over a wide, far-reaching area,  
use the standard type. When you need to detect people that are sitting and  
barely move such as in a conference room or office, or people that move  
only slightly, use the slight motion type.  
A
Slight motion  
Standard type  
type  
See here as well!  
Q
Q24  
Q34  
Q35  
Q45  
Is outdoor use possible?  
33  
Basically, you should not.  
MP motion sensors are designed for indoor use (for common indoor elec-  
tronic devices). If you need to use a sensor outdoors, take measures to  
waterproof the sensor and protect it from dust, condensation, and freezing.  
There are many causes of temperature changes outdoors, and detection  
A
errors may result.  
Waterproofing  
A typical outdoor application is entry  
light control. In this case the sensor is  
Dust  
protection  
normally in close proximity to a wall  
Condensation  
and roof which help to limit tempera-  
ture changes, and operation takes  
place at night when the temperature  
Freezing  
remains fairly uniform.  
’Questions and Answers Terminology  
MP Motion Sensor  
See here as well!  
Q
What is a comparator?  
30  
The amount of infrared radiation emitted from the human body is very  
small, and the signal cannot be processed by the circuit as is. For this rea-  
son, the signal is amplified by the amplifier circuit. The amplified signal must  
then be compared to the reference level. If the amplified circuit is greater  
than the reference level, a person is considered to have entered the detec-  
tion area and a signal is output. The circuit that makes this comparison  
A
is called a comparator.  
Comparison  
circuit  
<Timing chart> Standard type  
OK!  
Human body  
Amplifier  
circuit  
Output  
Element output  
(Open collector)  
Reference voltage  
Reference voltage  
Amplifier output  
comparator output  
I’m a comparator.  
Right here!  
See here as well!  
Q
When does current consumption standby  
occur?  
31  
When the time required for stabilization has elapsed and the sensor is  
ready for detection, two states are possible depending the condition of the  
detection area:  
1. A person has entered the detection area (detection output ON)  
2. Nobody is in the detection area (detection output OFF)  
Number 2 above is the standby state. (Number 1 is the detection state.)  
The difference between the standby state and the detection state is that the  
output circuit is off in the standby state, and therefore current consumption  
is less than in the detection state.  
A
Standby  
Detection  
Terminology  
See here as well!  
Q
What is a passive infrared element?  
28  
This is a sensor element whose surface is pre-charged. The charge  
changes due to infrared radiation from the object detected, and the change  
is output as a voltage change.  
A
Lens  
Passive  
infrared  
element  
It’s in here!  
See here as well!  
Q
What is a TO5 metal package?  
29  
As shown at right, a TO5 package con-  
sists of a metal semiconductor chip  
mounting 9 mm in diameter, a  
doshshaped component called a stem  
that holds the external leads, and a metal  
A
Cap  
cap that covers the semiconductor chip.  
Chip  
Stem  
Lead  
9mm  
’Questions and Answers Performance  
MP Motion Sensor  
See here as well!  
Q
What is the tolerance to external  
surges and noise?  
25  
Noise (noise components) from the ambient environment  
and power supply will affect operation.  
A
Use the sensor in an environment with as little noise as possible.  
Reference:  
Distance at which cellular telephone noise does not affect sensor: 1 to 2 cm or greater  
See here as well!  
What is your policy with respect to  
age deterioration?  
Q
26  
We estimate the age deterioration in the operating environ-  
ment of the sensor based on testing of the components hav-  
ing the greatest effect on operation.  
A
In the case of the NpPiOn sensor, the passive infrared elements have the  
most effect on operation. We estimate the age deterioration of the sensor  
based on accelerated reliability tests (THB tests, etc.). The test results indi-  
cate that the sensor should operate without problem at normal room tem-  
perature and humidity for 10 years or more.  
See here as well!  
Assuming battery power will be used,  
what is the life of the batteries?  
Q
27  
*Duration of battery use (per month): 24 hours per day, 30 days per month  
*Sensor detection frequency: 4000 times per month (5 to 6 times per hour)  
Detection output time: 1 minute per detection  
*Using a 5000 mAh lithium battery: 3.2 years  
*Using a 1200 mAh lithium battery: 9.3 months  
A
Current consumption  
Standby  
During detection  
270µA (typ.)  
Output (when at 100µA)  
170µA (typ.)  
See here as well!  
Q
The maximum operating ambient temper-  
ature is given as 60°C. The sensor cannot  
be used at a higher temperature?  
Q23  
Q43  
Q44  
22  
The operating ambient  
temperature range is  
–20°C to +60°C.  
No, the standard product cannot  
be used at a higher temperature.  
A
See here as well!  
Q
What will happen if a sensor is used out-  
side of the operating ambient temperature  
range?  
Q22  
Q43  
Q44  
23  
A detection signal may be output even though nothing is  
detected.  
Or, a detection signal may not be output even though a person is  
detected. (Performance cannot be guaranteed.) The operating ambient  
temperature range is –20°C to +60°C.  
A
See here as well!  
Q
Q33  
What will happen if dirt or dust gathers on  
24  
the sensor surface?  
Dust has hardly any effect on sen-  
sor operation.  
No problem with dust  
A
or small debris!  
However, a large piece of debris that covers  
part of the lens surface will interfere with  
operation.  
Reliability Data of MA Motion Sensor  
Conditions of measurement: temperature = 25 ± 5˚C, humidity = 40 to 70%, air pressure = 86 to 106 kPa  
Tested  
characteristic  
Test conditions  
Pass/fail criteria  
Test result  
After test: Change in detection  
distance performance is no more  
than ±30% of initial value. Visual  
inspection reveals no structural  
abnormalities.  
Number of pieces  
tested: n = 6  
Defective pieces: c = 0  
Passed  
Temperature: 85 ± 3˚C  
Test time: 96 hours  
Heat resistance  
Low temperature: -30 ± 3˚C  
High temperature: 85 ± 3˚C  
Time of one cycle: 30 min-  
utes each for high and low  
temperatures  
After test: Change in detection  
distance performance is no more  
than ±30% of initial value. Visual  
inspection reveals no structural  
abnormalities.  
Number of pieces  
tested: n = 6  
Defective pieces: c = 0  
Passed  
Resistance to  
thermal shock  
Number of cycles: 100  
After test: Change in detection  
distance performance is no more  
than ±30% of initial value. Visual  
inspection reveals no structural  
abnormalities.  
Number of pieces  
tested: n = 6  
Defective pieces: c = 0  
Passed  
Low temperature  
resistance  
Temperature: -30 ± 3˚C  
Test time: 96 hours  
During test: no errors, operation  
failures, or damage.  
Change in detection distance  
performance is no more than  
±20% of the value at 25˚C.  
Low temperature limit:  
-25 ± 3˚C  
High temperature limit:  
75 ± 3˚C  
Number of pieces  
tested: n = 6  
Defective pieces: c = 0  
Passed  
Operating  
temperature  
range  
Temperature: -10 ± 3˚C  
to 65 ± 3˚C  
Humidity: 90%  
Time of one cycle: 24  
hours  
Number of cycles: 10  
After test: Change in detection  
distance performance is no more  
than ±30% of initial value. Visual  
inspection reveals no structural  
abnormalities.  
Number of pieces  
tested: n = 6  
Defective pieces: c = 0  
Passed  
Temperature/  
humidity cycle  
Vibration frequency: 10 to 55 Hz  
Amplitude: 1.5 mm  
Direction of application: 3 direc-  
tions  
Application time: 30 minutes each  
directions  
After test: Change in detection  
distance performance is no more  
than ±30% of initial value. Visual  
inspection reveals no structural  
abnormalities.  
Number of pieces  
tested: n = 6  
Defective pieces: c = 0  
Passed  
Vibration  
resistance  
Shock value: 100 G  
Direction of application: distance performance is no more  
3 directions  
Application times: 3  
times each  
After test: Change in detection  
Number of pieces  
tested: n = 6  
Defective pieces: c = 0  
Passed  
than ±30% of initial value. Visual  
inspection reveals no structural  
abnormalities.  
Shock resistance  
Power source voltage:  
Nominal power source Leakage current: 3 µA or less  
voltage (Measured with micro-ammeter  
Output load voltage: 30 when output Tr is OFF)  
V DC  
Number of pieces  
tested: n = 3  
Defective pieces: c = 0  
Passed  
Output  
characteristics  
Height: 80 cm  
Direction of drop: 6 directions  
After test: No destruction.  
Number of times: Once each  
Visual inspection reveals no  
direction  
Number of pieces  
tested: n = 6  
Defective pieces: c = 0  
Passed  
Dropping  
tolerance  
(No Packing)  
structural abnormalities.  
Drop surface: vinyl chloride  
tile  

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