17 February 1987 White Light Speckle Method For Vibration Of Plates
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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.
© (1987) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
A. Asundi, A. Asundi, F. P. Chiang, F. P. Chiang, } "White Light Speckle Method For Vibration Of Plates", Proc. SPIE 0814, Photomechanics and Speckle Metrology, (17 February 1987); doi: 10.1117/12.941688; https://doi.org/10.1117/12.941688
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