A novel photonic Doppler velocimetry for transverse velocity measurement

被引：30
|
作者：
Chen, Guanghua [1 ]
Wang, Detian [1 ]
Liu, Jun [1 ]
Meng, Jianhua [1 ]
Liu, Shouxian [1 ]
Yang, Qingguo [1 ]
机构：
[1] CAEP, Inst Fluid Phys, Mianyang 621900, Sichuan, Peoples R China
来源：
REVIEW OF SCIENTIFIC INSTRUMENTS | 2013年 / 84卷 / 01期
关键词：
DISPLACEMENT INTERFEROMETER; IMPACT;
D O I：
10.1063/1.4776186
中图分类号：
TH7 [仪器、仪表];
学科分类号：
0804 ; 080401 ; 081102 ;
摘要：
A fiber interferometry for transverse velocity measurement has been developed. This diagnostic is similar to photonic Doppler velocimetry in the way in which laser propagates and couples. The interferometer mainly consists of a fiber coupler, an emitting probe, and two receiving probes. A pair of scattered laser beams mix in the coupler and generates fringes with frequency proportional to transverse velocity. Measurement of transverse velocity is independent of longitudinal velocity. The feasibility of the technique has been verified by rotating wheel experiment and shock loading experiment. (C) 2013 American Institute of Physics. [http://dx.doi.org/10.1063/1.4776186]
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页数：4
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