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Car bus seat pressure sensor

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Car bus seat pressure sensor

 

What is car/bus seat pressure membrane sensor ?

The Car seat sensors is a film type contact sensor, the Car seat sensor's contact points are evenly distributed on the seat's stressed surface, Car seat sensors Generate a trigger signal when the seat receives a pressure from the outside. The Car seat pressure sensors applies to the car seat occupancy perception system, Such as car seat belt alarm sensor system, Taxi automatic meter, car Airbag sensing system and Driver's departure sensing. For example with this Car seat sensor, It can sense whether there are people on the seat or not, Airbags will not open if there is no one. When the driver leaves the seat, the car will automatically return to neutral. People Design car seat sensor shape and contact points' sensitivity According to the car seat's shape, hardness, and skin tightness.
The car seat pressure sensors usually contain four layers, up circuit layer, between adhesive layer, down circuit layer and back adhesive layer. Other accessories are wire cables and connectors.
 

Basic Properties . 


Electrical Properties:
Rated Voltage
≤50V DC
Rated Current
≤ 100mA
Operating Power
≤1W
Insulation Resistance
≥100MΩ (250V DC)
Loop Resistance
10Ω~2kΩ (based on the design)
Contact Resistance
0.5 ~ 5Ω
Wire Lead Resistance
<1Ω/cm
Base Material Voltage Withstand
1500V DC
Mechanical Properties:
Life Expectancy
More than 10 years (more than 5 million times)
Operation Force
More than 500g
Tail Bending Performance
≤180°
Vibration
20G's max.
Thickness
0.7~2 mm
Environmental Properties:
Operation Temperature
-40°C to +90°C (-40°to 176°F)
Storage Temperature
-40°C to +90°C (-40°to 185°F)
Atmospheric Pressure
86 ~ 106 kPa
Humidity
+40°C, 90%~95%RH for 480 Hours


Basic Properties . 


When someone is sitting on a car seat, The car seat surface is subjected to a pressure, This pressure makes the upper and lower circuit layers of the seat sensor contact each other, Thus, the circuit loop is turned on conductive to generate a signal to other devices, Showing someone is sitting on the car seat, and, other systems in the car will use this signal to work, For example, the seatbelt warning system will detect if the person on the car seat whether put a seat belt on himself.


 Other Features
Artwork/Drawings Format
≤50V DC
Tail/Pin/Circuit Layout
≤ 100mA
Antistatic Shielding
≤1W
Connector
≥100MΩ (250V DC)
Rear Adhesive:
10Ω~2kΩ (based on the design)
Cables
0.5 ~ 5Ω
Printing
<1Ω/cm
Silk screen printing ink type
Silver paste, Carbon paste, dielectric oil
Certificate
ISO9001  RoHS  CE  SGS


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