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Test circuit on flexible membrane with adhesive

  • US 6,351,120 B2
  • Filed: 12/28/2000
  • Issued: 02/26/2002
  • Est. Priority Date: 08/25/1995
  • Status: Expired due to Term
First Claim
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1. A test circuit comprising:

  • an extended length of flexible membrane having adhesive along the surface thereof for bonding the membrane to a test substrate; and

    a conductive pattern on the membrane forming a meandering primary winding for imposing a spatially periodic magnetic field in a test substrate and at least one sensing coil for sensing the imposed magnetic field.

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