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Piezoelectric Effect

  1. Oct 1, 2015 #1
    Does anyone know how to find the "expansion" speed of a piezoelectric actuator? I tried displacement x frequency in hertz x 2 x 60 x 60 and then converted from um to miles. I'm getting 16> mph or an actuator that displaces 20um at 200,000 hertz.

    I thought these things moved fast, approaching the speed of sound fast.
     
  2. jcsd
  3. Oct 1, 2015 #2

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  4. Oct 1, 2015 #3
    There is no reason to expect the particle velocity approaching the speed of sound.
     
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