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Journals >Chinese Optics Letters >Volume 1 >Issue 8 >Page 08459 > Article

Chinese Optics Letters
Vol. 1, Issue 8, 08459 (2003)

A new method for angular displacement measurement

Caini Zhang^* and Xiangzhao Wang

Author Affiliations

Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800

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Caini Zhang, Xiangzhao Wang. A new method for angular displacement measurement[J]. Chinese Optics Letters, 2003, 1(8): 08459 Copy Citation Text

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Abstract

We describe a new method for angular displacement measurements that is based on a Fabry-Perot interferometer. A measurement accuracy of 10^(-8) rad is obtained by use of the sinusoidal phase modulating interferometry. Another Fabry-Perot interferometer is used to obtain the key initial angle of incidence.

Keywords

070.6020 120.3180 interferometry

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Caini Zhang, Xiangzhao Wang. A new method for angular displacement measurement[J]. Chinese Optics Letters, 2003, 1(8): 08459

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