AMN41121 Panasonic Electric Works, AMN41121 Datasheet - Page 8

• Manufacturer Part Number: AMN41121
• Description: SENSOR MOTION DETECT DIG STD BLK
• Manufacturer: Panasonic Electric Works
• Series: NaPiOn™r

Specifications of AMN41121

• Sensing Distance: 16.40' (5m)
• Sensor Type: Passive Motion
• Sensing Object: *
• Response Frequency: *
• Material - Body: *
• Shielding: *
• Voltage - Supply: 2.2 V ~ 3 V
• Output Type: Digital
• Terminal Type: PC Pin
• Package / Case: Radial
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 255-1808

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-
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.
That is, the sensor is actuated by the differ-
ence in temperature between human body
(which is a heat source) and floor, walls and
other objects forming the background.
These sensors detect the human
body by detecting the change in
incident infrared radiation.
Detection area of standard type
16.404ft
16.404ft
8.202ft
8.202ft
2.5m
2.5m
5m
5m
2
TOP VIEW
Operating principle of Motion Sensor
X
50
50
MP Motion Sensor ‘
0
16.404ft
16.404ft
8.202ft
8.202ft
2.5m
2.5m
5m
5m
SIDE VIEW
Y
41
41
0
Radiation from
human body: 10µm
In the detection zone, above, the sen-
sor turns on when a temperature
change exceeds the regulated amount.
Detection area
4m
3
Temperature
difference
2
Infrared radiation
1
(Max. 7.42m)
Movement
3m
3m
1
1
2
2
Y
’
1
Infrared radiation
2
Detection zone
3
4m
(Max. 5.66m)
X