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  1. #1
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    Rotating sensor from inside

    What sensor can count the number of rounds from a rotating object from inside?
    The speed of the rotating body is about 20,000 rpm

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  2. #2
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    Re: Rotating sensor from inside

    It depends, possibly accelerometer, magnet field sensor, fast gyroscope.

    Would be helpful if you describe the application in detail.

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  3. #3
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    Re: Rotating sensor from inside

    if, for example, you put a magnetic or optical sensor inside, and magnet or LED outside,
    then each time the sensor went around, it would "see" the magnet or LED

    but then you need power inside a rotating object, so you'll need a battery,
    or some sort of power take up, likely brushes

    i agree with FvM - please provide more information

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