A SIMPLIFIED SYSTEM FOR DIGITAL SPECKLE INTERFEROMETRY

被引：11

作者：

VIRDEE, MS

WILLIAMS, DC

BANYARD, JE

NASSAR, NS

机构：

来源：

OPTICS AND LASER TECHNOLOGY | 1990年 / 22卷 / 05期

关键词：

digital speckle interferometry; phase unwrapping; signal processing;

D O I：

10.1016/0030-3992(90)90072-C

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

A video speckle interferometer has been demonstrated which uses a spherical surface of small radius at the centre of the camera aperture to simplify the alignment of the reference beam. In combination with a fast microcomputer, this gives a compact and relatively inexpensive system which is able to display phase-stepped interferograms of good quality with a repetition rate approaching one second. The software for phase stepping and unwrapping has novel features and can be applied to other types of interferometer. © 1990.

引用

页码：311 / 316

页数：6

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