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- Path: sparky!uunet!ogicse!news.u.washington.edu!stein.u.washington.edu!hlab
- From: joro@Panix.Com (Joe Rosen)
- Newsgroups: sci.virtual-worlds
- Subject: Re: TECH: Electrolytic polymers (or whatever)?
- Message-ID: <1k8fsvINNs8a@shelley.u.washington.edu>
- Date: 27 Jan 93 21:52:05 GMT
- Article-I.D.: shelley.1k8fsvINNs8a
- References: <C1FsuK.FDs@mentor.cc.purdue.edu>
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-
-
- In <C1FsuK.FDs@mentor.cc.purdue.edu> barchasd@mentor.cc.purdue.edu
- (David Barchas) writes:
-
- >Does anyone know of a polymer or something that bends when an elcetric
- >current is passed through it. It needs to be very fast acting,
- >although if you only know of something that can point me in the right
- >direction it would be very apreciated. I am working on something
- >which would use that sort of thing. I guess it can also be a plastic
- >that will vibrate extremely fast almost buzz. I guess piezo film does
- >that but I don't know where to get just a small square or the like,
- >except in a radioshack buzzer(which is not what I want).
- >Any replies are appreciated.
-
- don't know about polymer material...
-
- ... but have experimented with nickel-titanium alloy wires that
- react (i.e. "bend" -- expand and contract) when a current is applied
- (anywhere from 50 to approx. 400 mA will work ok)...
-
- they can be purchased in sample quantities, along with a booklet
- describing how to use 'em --
-
- -- from a company called:
-
- mondo-tronics
- 2476 verna ct.
- san leandro, CA 94577
- 1-800-374-5764
-
- tons of lil' advertisments for this stuff (i.e. the mondo-tronics
- sampler) can be found in the magazine rack electronics books (like
- "radio electronics" magazine for example)...
-
- ... such magazines are a neat source for weird lil' companies sellin'
- all kinds 'o bizarre "garage" variety components.
-