Computer Aided Displacement And Object Shape Measurement By Holographic Interferometry

D. Vogel; V. Grosser; W. Osten; J. Vogel; R. Hoefling

doi:10.1117/12.961267

3 April 1989 Computer Aided Displacement And Object Shape Measurement By Holographic Interferometry

D. Vogel, V. Grosser, W. Osten, J. Vogel, R. Hoefling

Proceedings Volume 1121, Interferometry '89; (1989) https://doi.org/10.1117/12.961267
Event: Interferometry '89, 1989, Warsaw, Poland

Abstract

Acceptance of holographic displacement and vibration amplitude measurement technique in research and industry depends not only on the degree of automation, reliability and measurement accuracy, but also on its utility with respect to arbitraryly shaped objects. A 3D holographic measurement system, performing as displacement and vibration amplitude determination, as object shape and position measurement is described. For the purpose of fringe pattern analysis the system makes use of a special video processor in order to evaluate interference phase data in the points of a 32x32 grid. Measurements are carried out in an unitary interferometer of four illumination directions and one observation direction.

Citation Download Citation

D. Vogel, V. Grosser, W. Osten, J. Vogel, and R. Hoefling "Computer Aided Displacement And Object Shape Measurement By Holographic Interferometry", Proc. SPIE 1121, Interferometry '89, (3 April 1989); https://doi.org/10.1117/12.961267

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