A Comparison Of The Methods Available For The Evaluation Of Holographic Images

A. Ettemeyer; H. Rottenkolber; J. Schorner

doi:10.1117/12.968829

16 January 1988 A Comparison Of The Methods Available For The Evaluation Of Holographic Images

A. Ettemeyer, H. Rottenkolber, J. Schorner

Proceedings Volume 0952, Laser Technologies in Industry; (1988) https://doi.org/10.1117/12.968829
Event: Laser Technologies in Industry, 1988, Porto, Portugal

Abstract

The outstanding advantage of holographic interferometry as a contact-free measuring procedure is that it enables very wide-ranging statements to be made on the behaviour of a component. Measurements are taken simultaneously at several points on the surface of the object, and the result can be assessed visually. For a more precise quantitative analysis, or for automatic evaluation in serial testing, however, evaluation by computer is indispensable. The theoretical basis for this was laid in part several years ago, and suitable equipment in a variety of standard forms has in fact been available on the market for a number of years. This contribution attemps to provide an overall view of the various principles by which holographic interferograms can nowadays be evaluated, together with the areas in which each can best be applied.

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A. Ettemeyer, H. Rottenkolber, and J. Schorner "A Comparison Of The Methods Available For The Evaluation Of Holographic Images", Proc. SPIE 0952, Laser Technologies in Industry, (16 January 1988); https://doi.org/10.1117/12.968829

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