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Magnetostrictive sensor array for active or synthetic phased-array focusing of guided waves

  • US 8,907,665 B2
  • Filed: 11/17/2011
  • Issued: 12/09/2014
  • Est. Priority Date: 11/17/2010
  • Status: Active Grant
First Claim
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1. A system, comprising:

  • at least one strip of ferromagnetic material induced with a bias magnetic field coupled to a surface of a structure under test; and

    a plurality of pulsing/receiving coil circuits aligned with a surface of the at least one strip of the ferromagnetic material,wherein the plurality of pulsing/receiving coil circuits are individually controllable by a number of channels to excite guided waves in the structure under test using at least one of active phased-array focusing or synthetic phased-array focusing of the guided waves.

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