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Article #1852Re: Help needed - Optical Encoders
From: John Schuch
Date: Sun, 24 Jan 1993 00:59
Date: Sun, 24 Jan 1993 00:59
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1710 bytes
In article <1993Jan22.221233.650@isrc.sandia.gov> bryan@isrc.sandia.gov (Jon R Bryan) writes: >ska@hercules.acpub.duke.edu writes: >: Each motor has a built-in "AB quadrature output and zero index channel" >: type optical encoder. These encoders output voltages in the range 0.5 to >: 6 V DC via 4 leads - A, B, I, and ground. >: >: Now, how can I use the voltages from the encoders to compute joint positions ? > >Get the Monolithic Memories "PAL/PLE Device Programmable Logic Array >Handbook." There are three shaft encoder designs that will explain >quadrature decoding to you (if you can decipher the PALASM code). > or get the Hewlett Packard Opto Electronics databook for a couple of single chip solutions. Or get the Oak-Grigsby optical encoder/ switch booklet for a couple of examples using simple gates. Write me if you want more details, I can look it up Monday. John -- +--------------------------------------------------------------------------+ | John R. Schuch - Motorola Computer Group - Manufacturing Engineering | | N7XVS - schuch@phx.mcd.mot.com - (602) 438-3008 - CompuServe: 70733.3330 | +--------------------------------------------------------------------------+
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Newsgroups: comp.robotics Path: arc1-ca.pugleaf.net!sparky!uunet!cs.utexas.edu!asuvax!ennews!mcdphx!schuch From: schuch@phx.mcd.mot.com (John Schuch) Subject: Re: Help needed - Optical Encoders Message-ID: <1993Jan24.005931.11981@phx.mcd.mot.com> Sender: news@phx.mcd.mot.com Nntp-Posting-Host: bopper2.phx.mcd.mot.com Organization: Motorola Computer Group, Tempe, Az. References: <8912@news.duke.edu> <1993Jan22.221233.650@isrc.sandia.gov> Date: Sun, 24 Jan 1993 00:59:31 GMT Lines: 28