A novel photonic Doppler velocimetry for transverse velocity measurement

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 sc...

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Bibliographic Details
Published inReview of scientific instruments Vol. 84; no. 1; p. 013101
Main Authors Chen, Guanghua, Wang, Detian, Liu, Jun, Meng, Jianhua, Liu, Shouxian, Yang, Qingguo
Format Journal Article
LanguageEnglish
Published United States 01.01.2013
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Summary: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.
ISSN:1089-7623
DOI:10.1063/1.4776186