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Optical Engineering

Time Average Holography In Vibration Analysis
Author(s): Ryszard J. Pryputniewicz
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Paper Abstract

This paper deals with the quantitative interpretation of time-average holograms of vibrating objects. It is shown that the images obtained during reconstruction of such holograms are modulated by a system of fringes described by the square of the zero-order Bessel function of the first kind. A procedure for quantitative interpretation of these fringes is described and illustrated with examples. The experimental results, obtained directly from the time-average holograms, show good agreement with the exact solution of the differential equation of motion based on the beam theory and with the mode shapes determined by the finite element modeling of the vibrating beam.

Paper Details

Date Published: 1 August 1985
PDF: 6 pages
Opt. Eng. 24(5) 245843 doi: 10.1117/12.7973586
Published in: Optical Engineering Volume 24, Issue 5
Show Author Affiliations
Ryszard J. Pryputniewicz, Worcester Polytechnic Institute (United States)

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