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Proceedings Paper

Laser Based Transduction Of Ultrasound For Practical NDT Applications
Author(s): A. Aharoni; M. Tur; K. M. Jassby
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Paper Abstract

Laser based techniques for the generation and the detection of ultrasonic surface waves (SAW) are described. These methods were motivated by practical ultrasonic non-destructive testing (NDT) applications and are suitable for operation on rough surfaces which are typical to engineering materials. Wide strip laser illumination is used to generate SAW waveforms by means of a thermoelastic mechanism. For detection an holographic method has been developed, achieving sensitivities of the order of 0.1 Å at 10 MHz bandwidth on rough aluminum surfaces.

Paper Details

Date Published: 5 July 1989
PDF: 9 pages
Proc. SPIE 1038, 6th Mtg in Israel on Optical Engineering, (5 July 1989); doi: 10.1117/12.951061
Show Author Affiliations
A. Aharoni, Tel Aviv University (Israel)
M. Tur, Tel Aviv University (Israel)
K. M. Jassby, Tel Aviv University (Israel)

Published in SPIE Proceedings Vol. 1038:
6th Mtg in Israel on Optical Engineering
Rami Finkler; Joseph Shamir, Editor(s)

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