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Unread 24-03-2004, 20:46
FotoPlasma FotoPlasma is offline
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Re: How to measure wheel revolutions

Quote:
Originally Posted by 10intheCrunch
We have proximity sensors with a very short range (a few mm) pointed directly at the sproket turning our back wheel. The sensors are rigged to interrupts in the program (which can be either rising edge or change). From there it is pretty easy to go to RPM.
Do you happen to know what kind of proximity sensors you're using? Are they ultrasonic? magnetic? Maybe even a part number? Thanks in advance.
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