Article View: comp.robotics
Article #631Re: velocity sensing for robotic joints
From: Greg Ebert
Date: Thu, 09 Aug 1990 17:53
Date: Thu, 09 Aug 1990 17:53
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839 bytes
Although non-digital, another method of measuring the rotational velocity is to measure the back-emf of the motor. I've seen this used in closed-loop analog systems for accurate speed control. A degenerate case is the detection of a 'motor-jam' condition. With cheap multichannel ADC's available, methinks this might warrant some consideration.
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Path: arc1-ca.pugleaf.net!utzoo!utgpu!news-server.csri.toronto.edu!mailrus!wuarchive!uunet!zephyr.ens.tek.com!gvgpsa!gold!grege From: grege@gold.GVG.TEK.COM (Greg Ebert) Newsgroups: comp.robotics,comp.lsi,sci.electronics Subject: Re: velocity sensing for robotic joints Message-ID: <1251@gold.GVG.TEK.COM> Date: 9 Aug 90 17:53:45 GMT References: <1990Aug7.205751.21206@ecf.utoronto.ca> <19481@well.sf.ca.us> Followup-To: comp.robotics Organization: Grass Valley Group, Grass Valley, CA Lines: 6