A CARRIER METHOD OF SPECKLE-SHEARING INTERFEROMETRY FOR INDIVIDUAL-COMPONENT PATTERNS OF INPLANE STRAIN

被引：8

作者：

FANG, J ^{[1
]}

LAERMANN, KH ^{[1
]}

机构：

[1] UNIV WUPPERTAL,D-42285 WUPPERTAL,GERMANY

来源：

OPTICS AND LASER TECHNOLOGY | 1995年 / 27卷 / 03期

关键词：

SPECKLE-SHEARING; OPTICAL FILTERING; DIGITAL IMAGE PROCESSING; STRAIN ANALYSIS;

D O I：

10.1016/0030-3992(95)93632-2

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

With single-beam illumination and double-film recording, two fringe carriers are introduced separately into double-exposure recording of speckle-shearing interferometry, so that the deformation of the specimen is recorded in the form of spatial modulation to the frequency of the carrier fringes. By Fourier transform optical-filtering, two strain-modulating fringe carriers are obtained, and these are then processed by digital image processing as grey level images, from which the pattern of the individual in - plane strain is acquired by subtraction of these images.

引用

页码：139 / 143

页数：5

共 9 条

[1] FRINGE VARIATION AND VISIBILITY IN SPECKLE-SHEARING INTERFEROMETRY [J].