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Updated: May 14, 2026

Micro-particle Image Velocimetry for Velocity Profile Measurements of Micro Blood Flows
Published on: April 25, 2013
A novel photonic Doppler velocimetry for transverse velocity measurement
Guanghua Chen1, Detian Wang, Jun Liu
1Institute of Fluid Physics, CAEP, P.O. Box 919-109, Mianyang, Sichuan 621900, People's Republic of China.
Abstract:
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.
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