IMPROVED DISCONTINUITY DETECTION USING COMPUTER-AIDED ULTRASONIC PULSE-ECHO TECHNIQUES

The purpose of this project has been to investigate means for obtaining improved characterization of the size, shape and location of subsurface dscontinuities in metals. This has been done by applying computerized data processing techniques to the signal obtained in conventional ultrasonic pulse-echo systems. The principal benefits are improved signal-to-noise ratio, and resolution. Possible applications of this data processing system to current problems in nondestructive testing are discussed. The testing of materials with large amounts of internal scattering and frequency dependent attenuation appears to be particularly promising. Also, the enhanced resolution gained by the system can be used to reveal previously undetectable discontinuities in thin plates or those that are near a reflecting surface such as in immersion testing.

  • Corporate Authors:

    Welding Research Council

    345 East 47th Street
    New York, NY  United States  10017
  • Authors:
    • Frederick, J R
    • Seydel, J A
  • Publication Date: 0

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Filing Info

  • Accession Number: 00047670
  • Record Type: Publication
  • Source Agency: Welding Research Council
  • Files: TRIS
  • Created Date: Oct 31 1973 12:00AM