Computer-aided simulation of deformation measurements by means of holographic interferometry

Marek J. Matczak

doi:10.1117/12.195496

30 November 1994 Computer-aided simulation of deformation measurements by means of holographic interferometry

Marek J. Matczak

Proceedings Volume 2342, Interferometry '94: Photomechanics; (1994) https://doi.org/10.1117/12.195496
Event: International Conference on Interferometry '94, 1994, Warsaw, Poland

Abstract

The simulation procedures based on the exact theoretical description of the interference-image formation in the real-time or double-exposure holographic interferometry are discussed. The theory takes into account not only the displacement and strain distributions on the object surface but also reconfiguration of measuring-system parameters between two recorded states of the whole set-up. These state changes influence the form of fringe pattern, with a possible carrier frequency of fringes, as well as the fringe-contrast distribution in theoretical description of the interference image. The program makes it possible to create interference images of the form like that obtained in a real measuring system. The algorithm calculating the displacement and strain fields for a theoretical model of the loaded object is the exchangeable part of the program. The program can be applied in designing real measuring systems, in verification of theoretical models of loaded objects, in analysis of computer-aided systems for quantitative interpretation of holographic interferograms, as well as in eduction in the field of photomechanics.

Citation Download Citation

Marek J. Matczak "Computer-aided simulation of deformation measurements by means of holographic interferometry", Proc. SPIE 2342, Interferometry '94: Photomechanics, (30 November 1994); https://doi.org/10.1117/12.195496

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