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Proceedings Paper

Local measurements of high-gradient in-plane displacement/strain fields by automated grating interferometry
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Paper Abstract

Instrumentation and data postprocessing problems connected with local measurements of high gradient in-plane displacement/strain fields by automated grating interferometer are considered. A new version of waveguide grating microinterferometer is proposed. Various paths of postprocessing are investigated and data reduction and interpolation technique with adaptive size of elementary sampling area is recommended for strain and local material constant determination. The usefulness of the technique is shown on the base of ceramic-to-metal joint investigation.

Paper Details

Date Published: 30 June 1998
PDF: 7 pages
Proc. SPIE 3478, Laser Interferometry IX: Techniques and Analysis, (30 June 1998); doi: 10.1117/12.312956
Show Author Affiliations
Malgorzata Kujawinska, Warsaw Univ. of Technology (Poland)
Leszek A. Salbut, Warsaw Univ. of Technology (Poland)
Robert Sitnik, Warsaw Univ. of Technology (Poland)

Published in SPIE Proceedings Vol. 3478:
Laser Interferometry IX: Techniques and Analysis
Malgorzata Kujawinska; Gordon M. Brown; Mitsuo Takeda, Editor(s)

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