A simple method for the digital determination of the photoelastic fringe order

被引：12

作者：

Chen, TY ^{[1
]}

机构：

[1] Natl Cheng Kung Univ, Dept Mech Engn, Tainan, Taiwan

来源：

EXPERIMENTAL MECHANICS | 2000年 / 40卷 / 03期

关键词：

photoelastic; two-load method; isochromatic fringe order; light field; digital determination;

D O I：

10.1007/BF02327497

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A new and simple approach to the digital determination of a photoelastic fringe order using two different loads is proposed. The relationships between the intensity values of tight and the isochromatic fringe orders generated from two different loads are derived. The scheme used for the automated determination of the total fringe orders of a full-field photoelastic fringe pattern is described. The usefulness of this method is demonstrated using two isochromatic fringe patterns under two different loads. Extra filters are not needed in the proposed method as in the case of the two-wavelength method.

引用

页码：256 / 260

页数：5

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