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Old 06-30-2009, 07:11 PM
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dllabarre dllabarre is offline
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Originally Posted by MileHigh View Post
The reason for this is that the frequency 'f' in the equation above will be roughly ((RPM x 4)/60) and the 'L' will also be very small.
Originally Posted by Lambda View Post
Now, plug in the inductance you measured and then the other variable would be your frequency, which is based upon the RPM and the number of poles. If it is a 4 pole, I imagine there would be 4 pulses per revolution, so multiply the RPM by 4.
Mike H.

Posted are 2 different equations for estimating frequency.

Which equation is correct for estimating frequency?
(RPM x 4) or ((RPM x 4)/60)

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