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Optical Engineering

Digital speckle pattern interferometry applied to a surface roughness study
Author(s): Mario Marcelo Lehman; Juan A. Pomarico; Roberto Daniel Torroba
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Paper Abstract

Surface roughness determination is of great interest for many applications. Several methods can be found in the literature, but most of them rely on indirect evaluation of the information, such as photographic techniques. We propose a method to measure surlace roughness that takes advantage of digital speckle pattern interferometry for obtaining the data, and of digital image processing for evaluating it. After defining the problem, a theoretical description is presented, and finally it is compared with experimental results, showing good agreement.

Paper Details

Date Published: 1 April 1995
PDF: 5 pages
Opt. Eng. 34(4) doi: 10.1117/12.196533
Published in: Optical Engineering Volume 34, Issue 4
Show Author Affiliations
Mario Marcelo Lehman, Ctr. de Investigaciones Opticas (CIOp) (Mexico)
Juan A. Pomarico, Ctr. de Investigaciones Opticas (CIOp) (Argentina)
Roberto Daniel Torroba, Ctr. de Investigationes Opticas (Argentina)

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