A new method for generating and analysing digital speckle shearing correlation fringe patterns

被引：11

作者：

He, YM ^{[1
]}

Tay, CJ

Shang, HM

机构：

[1] Huazhong Univ Sci & Technol, Dept Mech, Wuhan 430074, Peoples R China

[2] Natl Univ Singapore, Dept Mech & Prod Engn, Singapore 119260, Singapore

来源：

OPTICS AND LASER TECHNOLOGY | 1998年 / 30卷 / 01期

关键词：

digital speckle shearing; correlation fringe patterns; phase shifting; phase maps;

D O I：

10.1016/S0030-3992(97)00062-5

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

A method for generating a high visibility digital speckle shearing fringe pattern is proposed. A three-step phase shifting technique which involves the introduction of arbitrary phases is utilized. The phase shifting technique is carried out using a rotating mirror and a theoretical model which involves a linear correlation algorithm is discussed. Experimental results showing correlation fringe patterns and a deformation phase map are presented. (C) 1998 Elsevier Science Ltd. All rights reserved.

引用

页码：27 / 31

页数：5

共 5 条

[1]

Chau F. S., 1989, Journal of Nondestructive Evaluation, V8, P225, DOI 10.1007/BF00633273

[2]

DAI JS, 1992, EXPT MECH, V7, P153

[3]

He Yuming, 1995, Acta Photonica Sinica, V24, P13

[4] SHEAROGRAPHY - A NEW OPTICAL METHOD FOR STRAIN-MEASUREMENT AND NON-DESTRUCTIVE TESTING [J].

HUNG, YY .

OPTICAL ENGINEERING, 1982, 21 (03) :391-395

[5] SPECKLE-SHEARING INTERFEROMETRIC TECHNIQUE - FULL-FIELD STRAIN GAUGE [J].

HUNG, YY ;

ROWLANDS, RE ;

DANIEL, IM .

APPLIED OPTICS, 1975, 14 (03) :618-622

← 1 →