Two-dimensional laser Doppler velocimeter using polarized beams and 90° phase shift for discrimination of velocity direction

被引：4

作者：

Maru, Koichi ^{[1
]}

Hu, Liu Yan ^{[2
]}

Lu, Rong Sheng ^{[2
]}

Fujii, Yusaku ^{[1
]}

Yupapin, P. P. ^{[3
]}

机构：

[1] Gunma Univ, Dept Elect Engn, Gunma 3768515, Japan

[2] Hefei Univ Technol, Sch Instrument Sci & Optoelect Engn, Hefei 230009, Anhui, Peoples R China

[3] King Mongkuts Inst Technol Ladkrabang, Fac Sci, Bangkok 10520, Thailand

来源：

OPTIK | 2011年 / 122卷 / 11期

关键词：

Laser Doppler velocimetry; Interferometry; Laser sensors; Optical instrumentation; PRESERVING OPTICAL FIBERS;

D O I：

10.1016/j.ijleo.2010.06.032

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

A laser Doppler velocimeter (LDV) for two-dimensional velocity measurement using a simple optical configuration without any optical modulator is proposed. The structure using polarized beams and the 90 degrees phase shift of the reference beam is used to discriminate the direction of velocity. The analytical relation among beat frequencies and velocity components is derived and the characteristics of the proposed LDV are simulated. The simulation results indicate that the direction of velocity can be discriminated by the proposed LDV as well as the magnitudes of the components of the velocity. (C) 2010 Elsevier GmbH. All rights reserved.

引用

页码：974 / 977

页数：4

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