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Methods and apparatus for detecting cracks in welds

  • US 7,412,890 B1
  • Filed: 12/31/2003
  • Issued: 08/19/2008
  • Est. Priority Date: 12/31/2003
  • Status: Expired due to Fees
First Claim
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1. A method of inspecting a portion of a weld between at least two materials, said method comprising:

  • pivotably mounting at least one ultrasonic phased array probe within a probe housing, the probe housing comprising a plurality of sides, an open top end and an open bottom end, the plurality of sides defining a housing cavity, each ultrasonic phased array probe comprising at least one transducer having a plurality of elements, the at least one ultrasonic phased array probe pivotable within the probe housing;

    attaching the probe housing to an outer surface of the portion of the weld so that the outer surface of the portion of the weld acts as a bottom end of the housing cavity;

    filling at least a portion of the housing cavity with a liquid so that the liquid is in contact with the outer surface of the portion of the weld; and

    scanning the weld with the at least one ultrasonic phased array probe.

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