A new method for generating and analysing digital speckle shearing correlation fringe patterns

被引：11
|
作者：
He, YM [1 ]
Tay, CJ
Shang, HM
机构：
[1] Huazhong Univ Sci & Technol, Dept Mech, Wuhan 430074, Peoples R China
[2] Natl Univ Singapore, Dept Mech & Prod Engn, Singapore 119260, Singapore
来源：
OPTICS AND LASER TECHNOLOGY | 1998年 / 30卷 / 01期
关键词：
digital speckle shearing; correlation fringe patterns; phase shifting; phase maps;
D O I：
10.1016/S0030-3992(97)00062-5
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
A method for generating a high visibility digital speckle shearing fringe pattern is proposed. A three-step phase shifting technique which involves the introduction of arbitrary phases is utilized. The phase shifting technique is carried out using a rotating mirror and a theoretical model which involves a linear correlation algorithm is discussed. Experimental results showing correlation fringe patterns and a deformation phase map are presented. (C) 1998 Elsevier Science Ltd. All rights reserved.
引用
收藏
页码：27 / 31
页数：5
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