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From: rstevew@armory.com (Richard Steven Walz)
Subject: Re: Attitude sensors... and a few more things
Organization: The Armory
Date: Wed, 14 Sep 1994 09:56:33 GMT
Message-ID: <Cw46AA.6pr@armory.com>
References: <CvwDMp.MFM@cunews.carleton.ca> <1994Sep12.183416.2535@llyene.jpl.nasa.gov>
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In article <1994Sep12.183416.2535@llyene.jpl.nasa.gov>,
Jack Morrison <jack@robotics.jpl.nasa.gov> wrote:
>In article MFM@cunews.carleton.ca, jlamorie@schoolnet (Joshua Lamorie) writes:
>>	We are working on a project to make a flying robot that has wired 
>>stability, so we need to have a fair amount of Feedback as far as 
>>attitude is concerned.  I mean I could play around with some glass tubes, 
>>wires and a bit of mercury, but it would be nice if there was something 
>>out there all ready.
>
>There are at least a few manufacturers that make such devices, called
>(electrolytic) tilt sensors or clinometers (not using anything so nasty
>as mercury, but a conductive fluid whose resistance across various electrodes
>provides an analog signal proportional to tilt angle). They're not terribly 
>expensive, although they do tend to have long settling times (up to a few 
>seconds). A couple of (USA) sources:
>
>	The Fredericks Company
>	215/947-2500, fax: 215/947-7464
>	
>	Applied Geomechanics
>	408/462-2801, fax: 408/462-4418
>---
>"How am I typing? Call 1-818-354-7782"    jack@robotics.jpl.nasa.gov
>Jack Morrison/Jet Propulsion Lab/MS107-102
>4800 Oak Grove Dr, Pasadena CA 91109
---------------------------------------
Anybody considered a rotary encoder or a pot with a weighted pendulum on
it???
-Steve Walz   rstevew@armory.com

