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One-Way Piezoelectric Material

  1. Jun 18, 2013 #1
    Is there a type of piezoelectric material that only produces a current when bent one way or only bends one way when applied a current?
     
  2. jcsd
  3. Jun 22, 2013 #2

    Bobbywhy

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    Gold Member

    Piezoelectric materials generate electric charge (voltage) when stressed/flexed. They move in one direction when a positive voltage is applied and in the other direction when a negative voltage is applied.

    Nowhere in the above statements can you find the term "current".

    Read about it here: (and the references at the bottom)
    http://en.wikipedia.org/wiki/Piezoelectricity
     
  4. Jun 26, 2013 #3
    I imagine if you had the piezoelectric material mounted on a substrate. And it was segregated. then when you bent it to be convex, the piezo electric elements would have gaps in between it and thus be under significantly less stress.
     
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