Quantitative evaluation of speckle correlation fringes from a flat rotating specimen

Robin C. Swain; Richard W. T. Preater

doi:10.1117/12.165445

10 December 1993 Quantitative evaluation of speckle correlation fringes from a flat rotating specimen

Robin C. Swain, Richard W. T. Preater

Proceedings Volume 2003, Interferometry VI: Techniques and Analysis; (1993) https://doi.org/10.1117/12.165445
Event: SPIE's 1993 International Symposium on Optics, Imaging, and Instrumentation, 1993, San Diego, CA, United States

Abstract

This paper describes a system based upon electronic speckle pattern interferometry (ESPI) for the measurement of in-plane radial strains on rotating specimens. Repeatable fringe patterns are obtained over a wide range of rotational speeds, and analyzed using the Fourier transform method. Radial strain data, extracted from the unwrapped phase fields, is compared with an established theory, and demonstrates a good agreement.

Citation Download Citation

Robin C. Swain and Richard W. T. Preater "Quantitative evaluation of speckle correlation fringes from a flat rotating specimen", Proc. SPIE 2003, Interferometry VI: Techniques and Analysis, (10 December 1993); https://doi.org/10.1117/12.165445

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