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Proceedings Paper

Optical Surface Inspection Using A Transverse Speckle Detection Technique
Author(s): A. Oulamara; G. Tribillon; M. Spajer; J. Duvernoy
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Paper Abstract

A method that achieves automatic measurements of the orthogonal components of the motion of optically rough surfaces is described. An optical set-un that implements a speckle rotation is used to extract the components of 2-D displacements, which are obtained from simultaneous data recording performed by a single 1-D CCD line. A temporal analysis of speckle patterns related with a given inspected area of a moving structure is then possible. The movement trajectory is reconstructed. The principle of the method and the experimental set-up are described. Experimental results are shown with a specific application to the deformations of a video film structure under directional traction and dynamic analysis of thermal deformations of mechanical parts.

Paper Details

Date Published: 16 January 1989
PDF: 6 pages
Proc. SPIE 0954, Optical Testing and Metrology II, (16 January 1989); doi: 10.1117/12.947605
Show Author Affiliations
A. Oulamara, CNRS (France)
G. Tribillon, CNRS (France)
M. Spajer, CNRS (France)
J. Duvernoy, CNRS (France)

Published in SPIE Proceedings Vol. 0954:
Optical Testing and Metrology II
Chander Prakash Grover, Editor(s)

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