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Proceedings Paper

Applications of laser interferometry
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Paper Abstract

Many industrial processes require non-contact sensors for various reasons, including high temperature, moving parts, hostile environment or simply the necessity for remoteness. This paper present a review of our recent research and development on the measurement of out-of-plane displacement by four laser optical methods. These are: (1) a point displacement method at 30 Hz, (2) a shearographic fringe imager in the kHz frequency range, (3) a double probe interferometer for time-of-flight measurements in the low MHz frequency range, and (4) Fabry-Perot speckle interferometer for measurement of relative displacement amplitude also in the low MHz range. Each of the methods is presented in the context of an industrial application.

Paper Details

Date Published: 11 November 1998
PDF: 12 pages
Proc. SPIE 3581, Acousto-Optics and Applications III, (11 November 1998); doi: 10.1117/12.330470
Show Author Affiliations
Bernhard R. Tittmann, The Pennsylvania State Univ. (United States)

Published in SPIE Proceedings Vol. 3581:
Acousto-Optics and Applications III
Antoni Sliwinski; Bogumil B. J. Linde; Piotr Kwiek, Editor(s)

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