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Proceedings Paper

White Light Speckle Method For Vibration Of Plates
Author(s): A. Asundi; F. P. Chiang
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Paper Abstract

The white light speckle method is used to study the in-plane and out-of-plane vibration of plates. By suitable choice of experimental set-up, the amplitude of vibration and location of the nodal or antinodal regions can be determined. For in-plane vibration studies, the object is coated with a layer of retro-reflective paint, which creates a random speckle pattern when illuminated by a beam of white light. Filtered time-averaged patterns recorded in this way gives the amplitudes of the sinusoidal oscillation. For out-of-plane vibration studies, the reflection speckle method and the projection speckle method provide the anti-nodal and nodal regions respectively.

Paper Details

Date Published: 17 February 1987
PDF: 4 pages
Proc. SPIE 0814, Photomechanics and Speckle Metrology, (17 February 1987); doi: 10.1117/12.941688
Show Author Affiliations
A. Asundi, University of Hong Kong (Hong Kong, China)
F. P. Chiang, SUNY at Stony Brook (United States)


Published in SPIE Proceedings Vol. 0814:
Photomechanics and Speckle Metrology
Fu-Pen Chiang, Editor(s)

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