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Phased array ultrasonic NDT system for tubes and pipes

  • US 6,813,950 B2
  • Filed: 07/25/2002
  • Issued: 11/09/2004
  • Est. Priority Date: 07/25/2002
  • Status: Active Grant
First Claim
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1. A system for the non-destructive testing of tubes comprising one or more ultra-sonic modules each of said modules comprising:

  • (1) one or mare ultrasonic probes comprising a plurality of phased array ultrasonic elements;

    (2) an acoustic coupling fluid contained within a column extending downwardly from the probe; and

    (3) a boot for effecting an interface between said module and a tube having a tube wall to be tested, wherein the ultrasonic elements are deployed in the shape of a conical section having an included cone angle with the elements positioned side-by-side in an arcuate array to provide a phased array probe, whereby a plurality of phased array beams maybe directed from each of said one or more probes into an entry zone on an outer surface of said tube wall, said beams arriving at the entry zone from a range of bearing angles along conically oriented paths.

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