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Proceedings Paper

Real-time imaging using the INEEL Laser Ultrasonic Camera
Author(s): Vance A. Deason; Kenneth L. Telschow; Gordon D. Lassahn; Scott M. Watson; Robert S. Schley
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Paper Abstract

A new approach to the measurement of ultrasonic vibrations has been developed at the INEEL. This system utilizes heterodyne interferometric detection in a photorefractive material to provide real time, full field images of ultrasonic vibration amplitude and phase without scanning. The INEEL Laser Ultrasonic Camera has linear response for ultrasonic displacement (xi) < (lambda) divided by 4(pi) , approximately 45 nm displacement at a laser wavelength of 532 nm. In addition, the system exhibits flat response and narrow band detection for a broad range of vibration frequencies. The system is very robust, and has the potential for operation even in noisy industrial settings. A description of the system, representative data and several potential applications will be presented.

Paper Details

Date Published: 13 October 1999
PDF: 9 pages
Proc. SPIE 3783, Optical Diagnostics for Fluids/Heat/Combustion and Photomechanics for Solids, (13 October 1999); doi: 10.1117/12.365769
Show Author Affiliations
Vance A. Deason, Lockheed Martin Idaho Technologies Co. (United States)
Kenneth L. Telschow, Lockheed Martin Idaho Technologies Co. (United States)
Gordon D. Lassahn, Lockheed Martin Idaho Technologies Co. (United States)
Scott M. Watson, Lockheed Martin Idaho Technologies Co. (United States)
Robert S. Schley, Lockheed Martin Idaho Technologies Co. (United States)


Published in SPIE Proceedings Vol. 3783:
Optical Diagnostics for Fluids/Heat/Combustion and Photomechanics for Solids
Soyoung Stephen Cha; Peter John Bryanston-Cross; Carolyn R. Mercer, Editor(s)

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