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Proceedings Paper

Automatic Surface Analysis Of Projection Interference Fringes
Author(s): S. P. Almeida; R. W. Wygant; C. D. D. Soares
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Paper Abstract

Projection fringe interferometry techniques were used together with an automatic surface analysis algorithm to construct three-dimensional topographic maps of a nonoptical surface. Parameters determined by the algorithm include: average surface roughness, surface height distribution descriptors and the autocorrelation function. The resolution of the system can be varied from submicron to millimeters in both lateral and vertical directions. Results are presented for a surface analysis of an oxidized roughly cut block of iron. They were found to be in good agreement with measurements obtained via the stylus profilometer method.

Paper Details

Date Published: 16 January 1988
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Proc. SPIE 0952, Laser Technologies in Industry, (16 January 1988); doi: 10.1117/12.968851
Show Author Affiliations
S. P. Almeida, Virginia Polytechnic Institute and State University (United States)
R. W. Wygant, Virginia Polytechnic Institute and State University (United States)
C. D. D. Soares, Universidade do Porto (Portugal)


Published in SPIE Proceedings Vol. 0952:
Laser Technologies in Industry

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