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Proceedings Paper

Real-time deformation measurement using a transportable shearography system
Author(s): A. L. Weijers; Hedser H. van Brug; Hans Jan Frankena
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Paper Abstract

A new system for deformation visualization has been developed, being a real time phase stepped shearing speckle interferometer. This system provides the possibility to measure quantitatively deformations of diffusely reflecting objects in an industrial environment. The main characteristics of this interferometer are its speed of operation and its reduced sensitivity to external disturbances. Apart from its semiconductor laser source, this system has a shoe-box size and is mounted on a tripod for easy handling during inspection. This paper describes the shearing speckle interferometry set-up, as it is developed at our laboratory and its potential for detecting defects.

Paper Details

Date Published: 20 March 1997
PDF: 6 pages
Proc. SPIE 2921, International Conference on Experimental Mechanics: Advances and Applications, (20 March 1997); doi: 10.1117/12.269874
Show Author Affiliations
A. L. Weijers, Delft Univ. of Technology (Netherlands)
Hedser H. van Brug, Delft Univ. of Technology (Netherlands)
Hans Jan Frankena, Delft Univ. of Technology (Netherlands)

Published in SPIE Proceedings Vol. 2921:
International Conference on Experimental Mechanics: Advances and Applications
Fook Siong Chau; C. T. Lim, Editor(s)

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