HOLOGRAPHIC MOIRE FOR STRAIN FRINGE PATTERNS

被引：8

作者：

FANG, J ^{[1
]}

DAI, FL ^{[1
]}

机构：

[1] TSING HUA UNIV,DEPT ENGN MECH,PHOTOMECH LAB,BEIJING 100084,PEOPLES R CHINA

来源：

EXPERIMENTAL MECHANICS | 1991年 / 31卷 / 02期

关键词：

D O I：

10.1007/BF02327570

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

New holographic-moire methods are presented to obtain strain fringe patterns. To introduce two carriers of different directions, two kinds of recording procedures are proposed: (1) triple-exposure recording by two object beams and one reference beam (all of these beams are identical in polarization state) and (2) double exposure or real-time recording by two orthogonally polarized object beams and two corresponding reference beams. In these recordings, the carriers are introduced by changing the directions of the reference beams and are modulated by deformation. Separated in-plane displacement derivative patterns are then obtained by optical processings. Both the principles and the experimental results are shown in the paper.

引用

页码：163 / 167

页数：5