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Optical Engineering

Virtual Fringe Analysis Method In Time-Average Defocused Speckle Photography
Author(s): V. V. K. Karppinen
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Paper Abstract

In this paper a modified analysis method for analyzing time-average defocused speckle photographs is presented. Resolved surface slope components along the examining line can be found by measuring fringe distances from a certain point. Then amplitude changes and bending moments can be calculated. The method has been verified experimentally by examining vibrations of a rectangular glass fiber multilayer plate.

Paper Details

Date Published: 1 February 1982
PDF: 3 pages
Opt. Eng. 21(1) 210160 doi: 10.1117/12.7972859
Published in: Optical Engineering Volume 21, Issue 1
Show Author Affiliations
V. V. K. Karppinen, University of Joensuu (Finland)


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