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Strain sensor having improved accuracy

  • US 7,082,844 B1
  • Filed: 02/16/2005
  • Issued: 08/01/2006
  • Est. Priority Date: 02/16/2005
  • Status: Expired due to Fees
First Claim
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1. A strain sensor comprising:

  • a load carrying member having a top and bottom surface and an outer peripheral edge;

    at least three bumps formed on the top surface and located toward the outer peripheral edge;

    a housing, the load carrying member mounted adjacent the housing such that the bumps are adapted to contact the housing;

    at least one layer of dielectric material formed on the top surface;

    at least one strain sensitive resistor formed on the dielectric material; and

    the bumps providing a planar contact between the housing and the load carrying member.

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