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Flexible eddy current surface measurement array for detecting near surface flaws in a conductive part

  • US 5,389,876 A
  • Filed: 05/06/1991
  • Issued: 02/14/1995
  • Est. Priority Date: 05/06/1991
  • Status: Expired due to Term
First Claim
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1. A flexible eddy current surface measurement array comprising:

  • a spatially correlated plurality of electrically interconnected eddy current sensing means wherein said eddy current sensing means comprise drive and sense elements operatively coupled through a conductive surface under inspection such that said drive and sense elements are disposed in at least two layers wherein said elements are electrically interconnected therethrough and within an integral, multi-layer structure such that said multilayer structure is outwardly affixed onto a supporting material having a surface conforming to match the conductive surface under inspection wherein said sense elements are further comprised of a plurality of coil elements such that each of said coil elements are electrically connected to respective output leads; and

    said multi-layer structure is flexible wherein the plurality of said sensing means are disposed.

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