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
收藏
页码：311 / 316
页数：6
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