Max load FSR sensor

Other Hardware Sensors
1

Dear forum,

I'm working on devolping a seatbelt reminder system in a car and I'm now trying to build a prototype using an Arduino UNO.

To detect if the seat is occupied I'm thinking of using this FSR (Force Sensitive Resistor): Force Sensitive Resistor - Square - SEN-09376 - SparkFun Electronics

The FSR needs to detect a human and as the information says the fsr works from 100g - 10kg. I'm not calling any of you fat but I'm sure most of you weigh above 10kg.

My question is if this sensor will work if there is more then 10kg applied.

any sugestions are welcome.

Thank you!

2

Yes, it will work beyond the 10kg sensing limit but the output will be saturated.
The maximum permitted loading is not specified for that product, so that's where your problem lies.

How about a flex sensor?

3

Thank you for your reaction Martin!

It's good to know it will be possible to use te sensor and i will look in to the flex sensor, maybe that is a better option since the FSR works best on a flat surface.