Subject:
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Re: pressure sensors... non-conductive foam
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Newsgroups:
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lugnet.robotics.handyboard
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Date:
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Fri, 11 Apr 1997 20:40:12 GMT
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Original-From:
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Tom Brusehaver <tomb@netperceptions.com!StopSpam!>
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Viewed:
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1526 times
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Max> Do you think it would also be viable to use a soft
Max> NON-conductive foam and then measure the capacitance instead of
Max> the resistance to work accurately with lighter pressures?
Actually this will work better. I built a grid sensor using
conductive foam and brass strips. The brass strips tarnished over the
years and the resistance with the foam changed.
Capacitance might change with humidity, but you would be able to glue
the plates to the foam, rather than rely on some other connection,
making this more reliable.
Using a Frequency to Voltage convertor, this might be the best
solution.
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Message is in Reply To:
 | | Re: pressure sensors... non-conductive foam
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| (...) What a neat idea! Sounds nice and compact and simple to build too. Do you think it would also be viable to use a soft NON-conductive foam and then measure the capacitance instead of the resistance to work accurately with lighter pressures? (27 years ago, 11-Apr-97, to lugnet.robotics.handyboard)
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