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Proceedings Paper

Measurements Of Microdisplacements By Holographic Digital Image Processing
Author(s): Ri. Peralta-Fabi
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Paper Abstract

This paper is concerned with an automatic method designed to produce a series of holographic interferograms that contain the history of surface displacements of a material undergoing a deformation process. The purpose of automatic control of the hologram formation stage, is to insure that every interferogram displays similar fringe patterns, which can then be analyzed by another automatic setup for fringe counting based on digital processing of the holographic images. The formation parameters are supervised by a microcomputer that effects a decision of the exposure time. With this approach, it is possible to follow a dynamic phenomena and to produce measurements of statistical significance which, when expressed in terms of distributions, can help characterize the response behaviour of complex structured materials.

Paper Details

Date Published: 26 October 1983
PDF: 5 pages
Proc. SPIE 0398, Industrial Applications of Laser Technology, (26 October 1983); doi: 10.1117/12.935371
Show Author Affiliations
Ri. Peralta-Fabi, Universidad Nacional Autonoma de Mexico (UNAM) (Mexico)

Published in SPIE Proceedings Vol. 0398:
Industrial Applications of Laser Technology
William F. Fagan, Editor(s)

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