Fiber-optic techniques for generating and detecting ultrasonic waves for quantitative NDE

This paper describes a method that uses pulsed laser light and coherent light interferometry in a fiber-optic-based system for non-contact generation and detection of ultrasound. Fiber-optic bundles are used to construct a rugged and versatile system to deliver geometrically conditioned, high-energy...

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Bibliographic Details
Published in:Optics and lasers in engineering 1993, Vol.19 (1), p.121-140
Main Authors: Burger, C.P., Schumacher, N.A., Duffer, C.E., Knab, T.D.
Format: Article
Language:English
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Summary:This paper describes a method that uses pulsed laser light and coherent light interferometry in a fiber-optic-based system for non-contact generation and detection of ultrasound. Fiber-optic bundles are used to construct a rugged and versatile system to deliver geometrically conditioned, high-energy laser pulses capable of generating ultrasonic signals. In addition, an actively stabilized, multi-channel fiber-optic interferometric system for detecting these signals is described.
ISSN:0143-8166
1873-0302
DOI:10.1016/0143-8166(93)90038-M