looking for soft sensor..

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soarmor
 
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Joined: Mon Sep 16, 2013 5:47 pm

looking for soft sensor..

Post by soarmor »

I need a sensor to place underneath bed mattress to monitor if person is lying there.

so I'm wandering between these options:

Long Flex/Bend sensor
Extra-long force-sensitive resistor (FSR)
Round Force-Sensitive Resistor (FSR) - Interlink 402

are these flexible enough?

Pressure-Sensitive Conductive Sheet (Velostat/Linqstat)

is this sensitive enough for such project?

Thanks!

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adafruit_support_bill
 
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Re: looking for soft sensor..

Post by adafruit_support_bill »

The thicker the mattress is, the larger sensor you will need to detect the pressure. You will probably need to experiment a bit to find something that works well. FSR's work through chair cushions. For a mattress, a velostat sensor may be more effective.

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