1 April 1995 Digital speckle pattern interferometry applied to a surface roughness study
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Optical Engineering, 34(4), (1995). doi:10.1117/12.196533
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.
Mario Marcelo Lehman, Juan A. Pomarico, Roberto Daniel Torroba, "Digital speckle pattern interferometry applied to a surface roughness study," Optical Engineering 34(4), (1 April 1995). https://doi.org/10.1117/12.196533
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