Local measurement of high gradient in-plane displacement/strain fields by automated grating interferometry

被引：0
|
作者：
Kujawinska, M [1 ]
Salbut, L [1 ]
Sitnik, R [1 ]
机构：
[1] Warsaw Univ Technol, Inst Micromech & Photon, PL-02525 Warsaw, Poland
来源：
LASER INTERFEROMETRY IX: TECHNIQUES AND ANALYSIS | 1998年 / 3478卷
关键词：
optical metrology; grating (moire) interferometer; fringe pattern analysis; data reduction and interpolation; displacement/strain measurement; ceramic-to-metal joint;
D O I：
10.1117/12.312956
中图分类号：
O3 [力学];
学科分类号：
08 ; 0801 ;
摘要：
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.
引用
收藏
页码：359 / 365
页数：7
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