Simultaneous 3D digital holographic interferometry for strain measurements validated with FEM

被引：21

作者：

Sanchez A, Araceli ^{[1
]}

De la Torre Ibarra, Manuel H. ^{[1
]}

Mendoza Santoyo, Fernando ^{[1
]}

Saucedo-A, Tonatiuh ^{[2
]}

Reyes R, Donato ^{[3
]}

机构：

[1] Ctr Invest Opt AC, Guanajuato 37150, Mexico

[2] Univ Autonoma Zacatecas, Zacatecas 98060, Mexico

[3] Univ Tecnol Leon, Guanajuato 37670, Mexico

来源：

OPTICS AND LASERS IN ENGINEERING | 2014年 / 52卷

关键词：

Digital holography; Strain measurement; Nondestructive testing; Finite element method; DISPLACEMENTS; RECONSTRUCTION;

D O I：

10.1016/j.optlaseng.2013.06.013

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

This work introduces a digital holographic interferometer in a simultaneous 3D configuration to detect superficial strains. The system uses a single monochrome sensor and three different lasers in a two exposure method, which can successfully measure the superficial deformation during a controlled deformation. An aluminum plate with a well-known geometry is used as a proof of principle. The deformation and all physical variables are simulated with a finite element algorithm. The comparison between the experimental and the simulated results helps to validate the system's measurements with very good agreement. A description of the technique is presented. (C) 2013 Elsevier Ltd. All rights reserved.

引用

页码：178 / 183

页数：6

共 37 条

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