New trends in instrumentation and application of automated grating interferometry

Malgorzata Kujawinska; Leszek A. Salbut

doi:10.1117/12.212638

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

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.

Citation Download Citation

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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