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Proceedings Paper

Recent vibration analysis results at NTNU with video speckle interferometry
Author(s): Jesus D. R. Valera; Ole Johan Lokberg
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Paper Abstract

We present an outline of vibration analysis techniques that we have used recently which are based on video speckle interferometry. The work described is carried and deals with the following subjects: the determination of composite vibration induced strain, with the use of both (a) speckle shearing interferometry and (b) electronic speckle pattern interferometry (ESPI); (c) two mode vibration analysis based on stroboscopic ESPI and (d) inexpensive techniques for multimode vibration analysis based on hybrid ESPI and laser velocimeter measurements.

Paper Details

Date Published: 17 September 1997
PDF: 12 pages
Proc. SPIE 3098, Optical Inspection and Micromeasurements II, (17 September 1997); doi: 10.1117/12.281154
Show Author Affiliations
Jesus D. R. Valera, Norwegian Univ. of Technology (United States)
Ole Johan Lokberg, Norwegian Univ. of Technology (Norway)

Published in SPIE Proceedings Vol. 3098:
Optical Inspection and Micromeasurements II

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