Subject:
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measure motor torque with a light sensor
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Newsgroups:
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lugnet.robotics
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Date:
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Thu, 28 Jan 1999 23:36:26 GMT
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Reply-To:
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berwin@tuftsIHATESPAM.edu
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Viewed:
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866 times
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If you hook the motor to an input and then set up the input to read
light sensor - you can measure the retarding torque on the motor (100 is
stopped, 0 is free) (this from Chris Rogers)
-Ben
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Message has 2 Replies:
 | | Re: measure motor torque with a light sensor
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| (...) I think this will only work with CM, lights are powered by the RCX and this will probably run the motors all the time. I guess a touch sensor in raw mode would do it, but wouldn't return anything like 0 and 100. What happens when a motor is (...) (26 years ago, 29-Jan-99, to lugnet.robotics)
| | | Re: measure motor torque with a light sensor
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| (...) Actually you are measuring the speed of the motor. For DC motors the current is linear with torque and the speed is linear with voltage. If you just hook the motor to the input, you made a tachometer. It will only work in one rotation (...) (26 years ago, 29-Jan-99, to lugnet.robotics)
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