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Proceedings Paper

Holographic visualization of laser-generated ultrasound for the detection and description of subsurface flaws
Author(s): Klaus-Juergen Pohl; Horst-Artur Crostack; E. H. Meyer
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Paper Abstract

A special technique has been developed, enabling large area and contactless ultrasonic inspection of components. Ultrasonic Rayleighwaves are excited by proper laser irradiation of the component surface to be tested. The interaction of the propagating Rayleighwaves with near-surface flaws is visualized within the holographic soundfield picture taken from the insonicated part of the component. Thus, flaws as e.g. bonding flaws and cracks can be detected and described as concerns their shape and size.

Paper Details

Date Published: 15 February 1993
PDF: 12 pages
Proc. SPIE 1756, Interferometry: Applications, (15 February 1993); doi: 10.1117/12.140806
Show Author Affiliations
Klaus-Juergen Pohl, QZ-DO Qualitaetszentrum Dortmund GmbH & Co. KG (Germany)
Horst-Artur Crostack, QZ-DO Qualitaetszentrum Dortmund GmbH & Co. KG (Germany)
E. H. Meyer, Univ. Dortmund (Germany)


Published in SPIE Proceedings Vol. 1756:
Interferometry: Applications
Ryszard J. Pryputniewicz; Gordon M. Brown; Werner P. O. Jueptner, Editor(s)

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