Real-time deformation measurement using a transportable shearography system

A. L. Weijers; Hedser H. van Brug; Hans Jan Frankena

doi:10.1117/12.269874

20 March 1997 Real-time deformation measurement using a transportable shearography system

A. L. Weijers, Hedser H. van Brug, Hans Jan Frankena

Proceedings Volume 2921, International Conference on Experimental Mechanics: Advances and Applications; (1997) https://doi.org/10.1117/12.269874
Event: International Conference on Experimental Mechanics: Advances and Applications, 1996, Singapore, Singapore

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.

Citation Download Citation

A. L. Weijers, Hedser H. van Brug, and Hans Jan Frankena "Real-time deformation measurement using a transportable shearography system", Proc. SPIE 2921, International Conference on Experimental Mechanics: Advances and Applications, (20 March 1997); https://doi.org/10.1117/12.269874

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