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Topic: pressure sensitive button - (Read 827 times) previous topic - next topic

mrboni

Hi

Does there exist something like a solenoid but in reverse?  So a moving shaft that give a varying reading (or resistance) depending on how far in the shaft is pushed?

I imagine that connecting a solenoid up in reverse you will only get a current when the shaft is moving. I need something more like a potentiometer, but in this format so it is strong, and I can experiment with different springs to make it return.

Any ideas?


RuggedCircuits

This:

http://en.wikipedia.org/wiki/Linear_variable_differential_transformer

--
The Rugged Motor Driver: two H-bridges, more power than an L298, fully protected

mrboni


Grumpy_Mike

Also there are liner displacement transducers, which are basically a pot driven by a plunger.

Graynomad

And linear pots, depending on how much travel you need.

______
Rob
Rob Gray aka the GRAYnomad www.robgray.com

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