Experiences in Using Ultrasonic Holography in the Laboratory and in the Field with Optical and Numerical Reconstruction

  • V. Schmitz
  • M. Wosnitza
Part of the Acoustical Imaging book series (ACIM, volume 8)

Abstract

The holographic method was described and demonstrated by Gabor Greguss, Leith-Upatnieks, Thurstone and Metherell2 among others. For its application there is a need for coherent radiation. In conventional imaging the intensity distribution is recorded and in holography the complex amplitude distribution is recorded. There are two ways of realizing holographic reconstruction: optical and computer processing. In this paper experiences with both methods in the laboratory and in-situ gathered in the last two years are reported, in using ultrasonic holography as a modern tool for imaging flaws in thick-walled sections and in inspection of reactor pressure vessels.

Keywords

Fatigue Welding Assure Convolution Sine 

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Copyright information

© Plenum Press, New York 1980

Authors and Affiliations

  • V. Schmitz
    • 1
  • M. Wosnitza
    • 1
  1. 1.Institut für zerstörungsfreie Prüfverfahren UniversitätSaarbrucken 11Germany

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