REAL-TIME SHEAROGRAPHY FOR MEASURING TIME-DEPENDENT DISPLACEMENT DERIVATIVES

被引:18
|
作者
HUNG, YY [1 ]
TANG, S [1 ]
HOVANESIAN, JD [1 ]
机构
[1] PHASE SHIFT TECHNOL,TUCSON,AZ 85719
关键词
D O I
10.1007/BF02328445
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Shearography is an interferometric method for the direct measurement of derivatives of surface displacement. Shearography is traditionally practiced with a double-exposure mode. This paper presents a realtime technique which allows the derivative of surface displacement of the test object to be continuously observed. This technique is useful for monitoring time-dependent or transient deformation.
引用
收藏
页码:89 / 92
页数:4
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