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  1. #1
    Join Date
    May 2005

    Measuring stepper motor inductance

    Im retrofitting a mill, its about 5 years old, it came with two round nema34 steppers (y and z) and one nema 34 square (x), both types use the same driver, so I assume they are similar. What I want to know is how to determine their inductance, so with this value I can calculate the needed or acceptable voltage.

    I read on the web mentions about doing it with an scope, but not a detailed procedure. If anyone can help I will really appreciate it. Thanks!

    ● Distribuidor Syil en Argentina ● "www.syil.com.ar" ●

  2. #2
    Join Date
    Dec 2007
    An LCR meter would be easiest but here's a simple way that doesn't need a scope. I can't vouch for its accuracy.

    Here's how to do it using an oscilloscope.

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