LOGICAL MOIRE AND ITS APPLICATION

被引：34
|
作者：
ASUNDI, A
YUNG, KH
机构：
[1] Department of Mechanical Engineering, University of Hong Kong, Pokfulam Road
来源：
EXPERIMENTAL MECHANICS | 1991年 / 31卷 / 03期
关键词：
D O I：
10.1007/BF02326066
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Moire fringes are generated using logical operations on one-bit binary gratings. A traditional moire effect is observed using the AND operator while an enhanced moire is observed using the XOR operation. Since the reference grating in this type of moire is computer generated, fringe shifting to increase sensitivity can be easily accomplished. An alternative scheme, called the average step method, resulting from the logical operations with values averaged over the pitch of the reference grating, can also be used for fractional fringe-order determination. These principles with some applications are demonstrated in this paper.
引用
收藏
页码：236 / 242
页数：7
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