Measurement of out-of-plane deformation by combination of speckle photography and speckle shearing interferometry

被引：13
|
作者：
Barrientos, B
Martínez-Celorio, RA
López, LM
Dirckx, JJJ
Cywiak, M
机构：
[1] Univ Guanajuato, Fac Ingn Mecan Elect & Elect, Guanajuato, Mexico
[2] Ctr Inves Opt, Leon, Gto, Mexico
[3] Ctr Neurociencias Cuba, Havana, Cuba
[4] Lab Biomed Phys, B-2020 Antwerp, Belgium
来源：
OPTIK | 2004年 / 115卷 / 06期
关键词：
speckle photography; speckle interferometry; carrier-fringe method;
D O I：
10.1078/0030-4026-00362
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We measure the derivative of out-of-plane deformation in presence of large in-plane rigid body displacement (RBD) by a combination of Electronic Speckle-Shearing Pattern Interferometry (ESSPI) and speckle photography. We use digital speckle photography in order to compensate for the in-plane RBD and eliminate any decorrelation effects. ESSPI techniques are then applied to the compensated speckle images to obtain the derivative of the out-of-plane deformation. The method is tested on an aluminum plate subjected to simultaneous out-of-plane deformation and large in-plane RBD. The results indicate that the proposed method preserves the fringe contrast observed in ESSPI.
引用
收藏
页码：248 / 252
页数：5
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