Passenger side airbag sensor.

How does the passenger side air bag sensor work?

Give me 6 seconds of your life and I will show you.
(Click on the image, it should start playing the mini video).

https://instagram.com/p/8tuAJ1DNVL/?taken-by=thebaldgeek

 

Yeah, I probably need to get out more…. But if I did, where would you get your entertainment from?

The interesting thing is the fact that the seat sensor is full of some sort of gel fluid. I guess this way no matter how or where you sit on the seat, the pressure will be measured.
The output as an analog voltage is necessary as the airbag can fire at different strengths, so the computer needs to know how big (heavy) the person in the front seat is so it can deploy the bag at the right time and amount to decelerate the passenger.

All very cool. Your welcome.