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Optical Engineering

Optical Correlation Of Surface Displacement
Author(s): Robert B. Owen; Hua-Kuang Liu
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Paper Abstract

A coherent optical correlation technique is used to measure surface displacements. In the event that the surface roughness of the test object is invariant during the object's translation, the correlation intensity peak remains constant. A simple relationship between the displacement of the surface and the displacement of the peak correlation signal is found and experimentally verified.

Paper Details

Date Published: 1 June 1979
PDF: 7 pages
Opt. Eng. 18(3) doi: 10.1117/12.7972365
Published in: Optical Engineering Volume 18, Issue 3
Show Author Affiliations
Robert B. Owen, NASA/Marshall Space Flight Center (United States)
Hua-Kuang Liu, University of Alabama (United States)


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