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From: jpexg@mit-hermes.AI.MIT.EDU (John Purbrick)
Newsgroups: sci.electronics,misc.wanted
Subject: Re: Piezoelectric sheeting?
Message-ID: <2815@mit-hermes.AI.MIT.EDU>
Date: Sat, 7-Mar-87 23:02:59 EST
Article-I.D.: mit-herm.2815
Posted: Sat Mar  7 23:02:59 1987
Date-Received: Wed, 11-Mar-87 04:53:27 EST
References: <2723@well.UUCP>
Distribution: na
Organization: MIT AI Lab, Cambridge, MA
Lines: 11
Summary: You're talking about PVDF
Xref: mnetor sci.electronics:374 misc.wanted:647

In article <2723@well.UUCP>, ch@well.UUCP (Chris Hayes) writes:
> I am looking for a source of piezoelectric "sheets".  I have heard
> that several companies make/sell it, but I can't seem to find any
> references.
> Can anyone please help me find a source?
> 	Chris Hayes

What you want is poly-vynilideine fluoride film (spelling not guaranteed), 
commonly called PVDF. One manufacturer is the Pennwalt Corporation, based
in King Of Prussia, Pa. It comes in all kinds of thicknesses, and gives an
electrical response to force and temperature changes.