Difference displacement measurement using digital holography

被引：17
|
作者：
Gombköto, B [1 ]
Kornis, J [1 ]
Füzessy, Z [1 ]
机构：
[1] Budapest Univ Technol & Econ, Dept Phys, H-1111 Budapest, Hungary
来源：
OPTICS COMMUNICATIONS | 2002年 / 214卷 / 1-6期
关键词：
digital holography; displacement measurement; comparative measurement; phase-shifting;
D O I：
10.1016/S0030-4018(02)02183-1
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
A new digital holography method for the measurement of difference of displacements is presented, which is based on a pointwise non-linear mathematical operation in the image plane. The method can measure sum of displacements too. Basic principles and experimental verification are described. Some experiments concerning the measuring range of the method were performed. A new approach, named artificial phase-shifting, producing phase-shifted interferograms without use of an actual phase-shifting device in the experiment, is also presented. (C) 2002 Elsevier Science B.V. All rights reserved.
引用
收藏
页码：115 / 121
页数：7
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