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Pressing Force Sensor

  • US 20150035411A1
  • Filed: 10/16/2014
  • Published: 02/05/2015
  • Est. Priority Date: 04/17/2012
  • Status: Active Grant
First Claim
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1. A pressing force sensor comprising:

  • a piezoelectric sheet having a first main surface and a second main surface which are opposed to each other;

    a first electrode on the first main surface;

    a second electrode on the second main surface; and

    a support abutting the second main surface side of the piezoelectric sheet,wherein the support defines a space sized so as to allow deformation of at least a part of the second electrode, andthe piezoelectric sheet and the support are disposed such that distortion caused by an external force to the piezoelectric sheet over the space differs in two directions which are orthogonal to each other.

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