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Optical Engineering

Interferometric comparison of diffuse objects using comparative holography
Author(s): Pramod Kumar Rastogi
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Paper Abstract

Comparative holography solves a key problem of nondestructive evaluation: the comparison of the mechanical behavior of two nominally identical specimens subjected to the same loads. The method provides contours of equal differences in displacements of two stressed objects. This feature makes the method particularly attractive in flaw detection. The aim is to briefly outline the principles and practice of comparative holography with an emphasis on recent developments.

Paper Details

Date Published: 1 July 1995
PDF: 7 pages
Opt. Eng. 34(7) doi: 10.1117/12.200608
Published in: Optical Engineering Volume 34, Issue 7
Show Author Affiliations
Pramod Kumar Rastogi, Swiss Federal Institute of Technology (Switzerland)


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