New trends in instrumentation and application of automated grating interferometry

Malgorzata Kujawinska; Leszek A. Salbut

doi:10.1117/12.212638

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23 June 1995 New trends in instrumentation and application of automated grating interferometry

Malgorzata Kujawinska, Leszek A. Salbut

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Proceedings Volume 2545, Interferometry VII: Applications; (1995) https://doi.org/10.1117/12.212638
Event: SPIE's 1995 International Symposium on Optical Science, Engineering, and Instrumentation, 1995, San Diego, CA, United States

Abstract

High-sensitivity grating interferometry is shown as the effective experimental tool in hybrid method stress analysis. The recent modifications in instrumentation aim in the analysis of transient phenomena, measurements on a standard loading machine with simultaneous analysis of in-plane u, v, and additionally out-of-plane w displacement fields, miniaturization of the system, as well as in full automatization of acquisition of data and analysis of the results. The automated grating interferometer is considered as a smart system with adaptive fringe pattern design and macro/micro-scale measurement ability. Fulfilling recent instrumentional requirements enlarges areas of application of grating interferometry. The most recent examples of application discussed in the paper include: fracture mechanics, residual stresses determination, relaxation processes, fatigue testing, local material constants measurement, testing of local phenomena in adhesive joints, surface layers, material grains interaction, and many others.

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Malgorzata Kujawinska and Leszek A. Salbut "New trends in instrumentation and application of automated grating interferometry", Proc. SPIE 2545, Interferometry VII: Applications, (23 June 1995); https://doi.org/10.1117/12.212638

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