A method for reducing the influence of quarter-wave plate errors in phase stepping photoelasticity

被引：49

作者：

Ajovalasit, A ^{[1
]}

Barone, S

Petrucci, G

机构：

[1] Univ Palermo, Dipartimento Meccan & Aeronaut, Palermo, Italy

[2] Univ Pisa, Dipartimento Costruz Meccaniche & Nucl, Pisa, Italy

来源：

JOURNAL OF STRAIN ANALYSIS FOR ENGINEERING DESIGN | 1998年 / 33卷 / 03期

关键词：

photoelasticity; phase stepping; image processing;

D O I：

10.1243/0309324981512922

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

The phase stepping technique has recently been applied to the automated analysis of photoelastic fringes to determine the isoclinic parameter and the relative retardation. Generally, in these methods the error of quarter-wave plates, due to common manufacturing tolerances, influences the determination of the isoclinic parameter and the fringe order. In this paper a new phase stepping method in which the influence of quarter-wave plate error is null on the isoclinic parameter and negligible on the fringe order is proposed. The theoretical results have been confirmed by experimental tests.

引用

页码：207 / 216

页数：10

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