Subject:
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Re: Motor Sensor (fwd)
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Newsgroups:
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lugnet.robotics
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Date:
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Wed, 9 Jun 1999 00:18:47 GMT
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Original-From:
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Jim Choate <{ravage@einstein.}NoSpam{ssz.com}>
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Viewed:
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1039 times
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----- Forwarded message from Kekoa Proudfoot -----
From: kekoa@pixel.Stanford.EDU (Kekoa Proudfoot)
Subject: Re: Motor Sensor
Date: Tue, 8 Jun 1999 22:35:23 GMT
The hardest part, assuming you could find a way to read both clockwise and
counterclockwise rotations, is going to be converting velocity (which is
effectively what the motor will tell you) into position, assuming that is
what you wanted to do. This is trickier than it sounds. If all you are
interested in is some indication of velocity, then the motor might do the
trick.
----- End of forwarded message from Kekoa Proudfoot -----
The direction of rotation is reflected in the direction of current flow.
It's actualy not velocity, it's angular accelleration.
The actual technology of a servo or sel-syn system have been around for
about 100 years. It's well known technology and should be covered in any
decend system control text.
____________________________________________________________________
Never underestimate the stupidity of some of the people we
have to deal with.
William A. Reinsch, BoXA to Congress
The Armadillo Group ,::////;::-. James Choate
Austin, Tx /:'///// ``::>/|/ ravage@ssz.com
www.ssz.com .', |||| `/( e\ 512-451-7087
-====~~mm-'`-```-mm --'-
--------------------------------------------------------------------
--
Did you check the web site first?: http://www.crynwr.com/lego-robotics
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Message has 1 Reply:
 | | Re: Motor Sensor (fwd)
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| (...) Right, but one direction results in positive voltages, and the other results in negative voltages. And the RCX can only measure positive voltages. (...) It's actually not angular acceleration, it's angular velocity. -Kekoa (Sorry Jim, I (...) (25 years ago, 9-Jun-99, to lugnet.robotics)
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