AMN22112 Panasonic Electric Works, AMN22112 Datasheet - Page 15

• Manufacturer Part Number: AMN22112
• Description: SENSOR MOTION ANA 5V WHT PCB
• Manufacturer: Panasonic Electric Works
• Series: NaPiOn™r

Specifications of AMN22112

• Sensing Distance: 6.56' (2m)
• Sensor Type: Passive Motion
• Sensing Object: *
• Response Frequency: *
• Material - Body: *
• Shielding: *
• Voltage - Supply: 4.5 V ~ 5.5 V
• Output Type: Analog
• Terminal Type: PC Pin
• Package / Case: Radial
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 255-1806

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.
FEATURE
1
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.
Light volume detecting type
Stable detection
light path of a spherical lens
detection
Unstable
Diagram of the receiving
Because of the distance-measured type, accurate sensing is possible
with little influence caused by reflection ratio of the detection object.
Area reflective type
Reflected beam
Reflected beam
(Reflectivity:
Approx. 3% to 40%,
average 5%)
Approx. 90%)
(Reflectivity:
The sensor operates with high precision, even if
Ex.) white paper
the reflectivity of the detected object is low.
Ex.) hair
path of an a non-spherical lens
Diagram of the receiving light
MA Motion Sensor
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.
Received
Received
light spot
light spot
Efficient projection and
condensation is possible.
Stable detection
Stable detection
MA motion sensor
3. Features of MA Motion Sensor
Reflected beam
(Reflectivity:
Approx. 3% to 40%,
average 5%)
Reflected beam
Approx. 90%)
(Reflectivity:
Non-spherical lens!
Ex.) white paper
Ex.) hair