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Measuring DC motor inductance

  1. Apr 15, 2017 #1
  2. jcsd
  3. Apr 20, 2017 #2
    Thanks for the thread! This is an automated courtesy bump. Sorry you aren't generating responses at the moment. Do you have any further information, come to any new conclusions or is it possible to reword the post? The more details the better.
  4. Apr 24, 2017 #3
    In general - a dedicated instrument will yield better results when used within it's limits ( and more consistent). But to measure a hobby motor, doing the experimental approach, using the techniques would be more educational. Given the two methods I would be tempted to do both and see how close they come out.

    If you have access to an LCR meter, it would of course be faster, more convenient.
  5. Apr 24, 2017 #4


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    Why do you want to measure? What's the purpose?

    Say you going to make a digital controller for this motor. Having measured L and R, you will have to z-transform a transfer function, taking calculation time delay in the controller into consideration, and so on. If that's the case, there is smarter way, measuring the z-transformed of the transfer function directly.

    Please respond if interested.
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