CSI Develops Car Seat Pressure Sensor

Car Seat Pressure Sensor

CSI Keyboards recently worked with a customer in developing a seat belt reminder pressure sensor.  A seat pressure sensor is very similar to a membrane type contact sensor. The contacts of the sensor evenly distribute on the stress-bearing surface of seat, which will generate a trigger signal when the external force presses down on the seat. 

This type of sensor can be applied to any car seat occupant perception system, such as: a safety belt reminder, taxi automatic message accounting system, airbag sensor, and can also detect when an occupant leaves the seat. 

Sensor Parameters:

  • Ambient temperature: 20℃ ± 5℃
  • Rated working voltage: 13.5V
  • Rated long-time working current: ≤10mA
  • Short-time/Pulse working current: ≤20mA
  • Limit voltage: 19VDC
  • Insulation resistance: ≥100MΩ
  • Loop resistance: >40Ω
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