A simple electronic speckle shearing interferometer

被引：6
|
作者：
Wong, WO [1 ]
机构：
[1] Hong Kong Polytech Univ, Dept Engn Mech, Kowloon, Hong Kong, Peoples R China
来源：
OPTICS AND LASER TECHNOLOGY | 2002年 / 34卷 / 05期
关键词：
electronic speckle shearing interferometry; electronic speckle pattern interferometry; non-destructive testing;
D O I：
10.1016/S0030-3992(02)00036-1
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
A new speckle shearing interferometer with simple setup is proposed. The interferometer can be converted easily from a speckle referenced speckle pattern interferometer into a speckle shearing interferometer and vice versa. A beamsplitter and a mirror are used to generate the shear. The amount of shear can be adjusted by simply rotating the mirror. The costs involved are low and it is particularly useful for fast inspection in non-destructive testing of structural integrity. Both the theoretical studies of the method of measurement and the experimental results are presented. (C) 2002 Elsevier Science Ltd. All rights reserved.
引用
收藏
页码：399 / 403
页数：5
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