Phase-shifting whole-field speckle photography technique for the measurement of in-plane deformations in real time

被引：4
|
作者：
Mohan, NK [1 ]
Rastogi, P
机构：
[1] Indian Inst Technol, Dept Phys, Appl Opt Lab, Madras 600036, Tamil Nadu, India
[2] Swiss Fed Inst Technol, Appl Comp & Mech Lab, IMAC, CH-1015 Lausanne, Switzerland
来源：
OPTICS LETTERS | 2002年 / 27卷 / 08期
关键词：
D O I：
10.1364/OL.27.000565
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
A new real-time phase-shifting readout system is developed for quantitative evaluation of full-field correlation fringes obtained by means of Fourier filtering in speckle photography. The proposed method, which uses photorefractive crystals as the recording medium, is capable of mapping the whole-field displacement data from the recorded phase-shifted fringe patterns. Experimental results are presented on a diffuse surface subjected to rotation in its own plane. (C) 2002 Optical Society of America.
引用
收藏
页码：565 / 567
页数：3
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