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Apparatus for sensing and measuring pressure and shear components of a force at an interface between two surfaces

  • US 9,700,258 B2
  • Filed: 10/31/2013
  • Issued: 07/11/2017
  • Est. Priority Date: 10/31/2012
  • Status: Active Grant
First Claim
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1. Apparatus for sensing and measuring pressure and shear components of a force at an interface between two surfaces, which apparatus comprises:

  • (i) at least one flexible means for receiving the pressure component of the force and the shear component of the force; and

    (ii) transducer means for producing electrical signals consequent upon movement of the flexible means in response to the pressure component of the force and/or the shear component of the force,and the apparatus being such that;

    (iii) the transducer means comprises first and second electrode parts which are spaced apart by the flexible means;

    (iv) the first and second electrode parts move solely towards each other as a result of the pressure component of the force being applied to the flexible means;

    (v) the first and second electrode parts move towards and parallel to each other as a result of the shear component of the force being applied to the flexible means; and

    (vi) the movement of the first and second electrode parts towards and parallel to each other is such that;

    (a) the movement has an X-direction component due to the shear component of the force having an X-direction; and

    (b) the movement has a Y-direction component due to the shear component of the force having a Y-direction.

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