Detection of surface strain by three-dimensional digital holography

被引：25

作者：

De la Torre-Ibarra, M ^{[1
]}

Mendoza-Santoyo, F ^{[1
]}

Pérez-López, C ^{[1
]}

Saucedo, T ^{[1
]}

机构：

[1] Ctr Invest & Opt Asociac Civil, Guanajuato 37150, Mexico

来源：

APPLIED OPTICS | 2005年 / 44卷 / 01期

关键词：

D O I：

10.1364/AO.44.000027

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Three-dimensional digital holography with three object-illuminating beams has been successfully used for the detection of surface strain in metallic objects. The optical setup that uses illuminating beams to irradiate the object from three directions means that all three object surface displacement components, x, y, and z, can be independently calculated and used to find the strain gradients on the surface. The results show the conversion of the complete surface displacement field into a surface strain field. The method is capable of measuring microstrains for out-of-plane surface displacements of less than 10 mum. (C) 2005 Optical Society of America.

引用

页码：27 / 31

页数：5

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