Measurement of the deformations of objects by optical method

被引：0
|
作者：
Daira, R. [1 ]
Boudjema, B. [1 ]
Mordjaoui, M. [2 ]
机构：
[1] Univ August 20 1955 Skikda, Dept Fundamental Sci, Res Lab Physicochem Surfaces Interfaces Skikda, LRPCSI, Skikda, Algeria
[2] Univ August 20 1955 Skikda, Dept Elect Engn, Res Lab Physicochem Surfaces Interfaces Skikda, LRPCSI, Skikda, Algeria
来源：
OPTOELECTRONICS AND ADVANCED MATERIALS-RAPID COMMUNICATIONS | 2009年 / 3卷 / 02期
关键词：
Speckle; Non destructive testing; Aluminium; Interferometry; Image processing; SPECKLE-PATTERN INTERFEROMETRY;
D O I：
暂无
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The electronic technique of interferometry speckle, used in the measurement of the deformations of diffusing objects, is based on the process of subtraction of the figures of interferences. A first image of speckle is recorded before the deformation of the object in the RAM of a computer, followed a second after deformation. The square of the difference between the two images gives fringes of correlation in observable real times directly on the monitor. The interpretation of these fringes makes possible to determine the deformation.
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页码：89 / 93
页数：5
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