Newsgroups: comp.robotics
Path: cantaloupe.srv.cs.cmu.edu!europa.chnt.gtegsc.com!howland.reston.ans.net!ix.netcom.com!netcom.com!nagle
From: nagle@netcom.com (John Nagle)
Subject: Re: inclinometers/angle sensors
Message-ID: <nagleDBDK03.5Iq@netcom.com>
Organization: NETCOM On-line Communication Services (408 261-4700 guest)
References: <3th3nd$gbk@dewey.csun.edu> <DBCI4z.FJK@cix.compulink.co.uk>
Date: Sat, 8 Jul 1995 01:55:14 GMT
Lines: 18
Sender: nagle@netcom18.netcom.com

swebb@cix.compulink.co.uk ("Simon Webb") writes:
>>>They use a magneto-resistive element in their product which works great
>>>and is not subject to wear.

>What is a magneto-resistive element?  Sounds like what I could be looking 
>for.  Are there linear versions available?

     I'd like to hear more about that one myself.  

     The current best linear sensor is the LVDT transducer, but they
cost more than they should, due to low volume.  But call Trans-Tek
at 203-872-8531 for a catalog.  LVDTs are inductive devices with a
moving core and coils; there's no sliding contact, versions which
sense absolute position are available, they're reasonably insensitive
to interference, and unaffected by dirt short of total mechanical jamming.

					John Nagle

