Newsgroups: comp.robotics
Path: brunix!uunet!spool.mu.edu!torn!csd.unb.ca!r344
From: r344@jupiter.sun.csd.unb.ca (Ravin Balakrishnan)
Subject: Decoding Sine/Cos shaft encoders
Message-ID: <1993May29.155240.4648@jupiter.sun.csd.unb.ca>
Organization: University of New Brunswick, Fredericton, NB, Canada
Date: Sat, 29 May 1993 15:52:40 GMT
Lines: 11

Does anyone know of an easy (i.e. read 'cheap', perhaps a single chip?) way
to decode analog optical shaft encoders which output sine/cosine signals?
Ideally I'd like it to feed a bidirectional counter so that I can determine
the direction and magnitude of movement.  I know that some shaft encoders output
quadrature pulses, but I already have these sine/cosine devices connected to themotors I want to use and don't really want to buy new shaft encoders.

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Ravin Balakrishnan                       Email: ravin@vermis.cs.unb.ca
Faculty of Computer Science
University of New Brunswick
