11 November 1998 Applications of laser interferometry
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Proceedings Volume 3581, Acousto-Optics and Applications III; (1998) https://doi.org/10.1117/12.330470
Event: Acousto-Optics and Applications III, 1998, Gdansk-Jurata, Poland
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.
© (1998) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Bernhard R. Tittmann, Bernhard R. Tittmann, } "Applications of laser interferometry", Proc. SPIE 3581, Acousto-Optics and Applications III, (11 November 1998); doi: 10.1117/12.330470; https://doi.org/10.1117/12.330470

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