NDLI: Vector velocimetry by using fiber-optic low coherence interferometers

Content Provider	IEEE Xplore Digital Library
Author	Imai, Y. Tanaka, K.
Copyright Year	2002
Description	Author affiliation: Dept. of Comput. Sci. & Electron., Kyushu Inst. of Technol., Japan (Imai, Y.)
Abstract	A new velocimetry using the four probing points system consisting of fiber-optic low-coherence interferometers are proposed and demonstrated. The proposed velocimetry is capable of measuring simultaneously the 3-D velocity vector (absolute velocity and the velocity direction). The velocity vector distribution along depth can also be measured in the present method by scanning the mirror positions in the reference arms. Moreover, the 3-D velocity vector distribution can be measured by sweeping the mirror position for z-direction distribution and by moving the fiber probes for x- and y-direction distribution. The high spatial resolution of the present method enables us to apply the present method to sensing for velocity vector distributions of a boundary layer in liquid flow or of a vortex flow, and of a living body, which are very important in the field of fluid mechanics and the practical application. It is very difficult in conventional methods to measure the velocity vector in these application areas.
Starting Page	387
Ending Page	390
File Size	297736
Page Count	4
File Format	PDF
ISBN	0780372891
DOI	10.1109/OFS.2002.1000630
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2002-05-10
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Interferometers Interference Coherence Optical scattering Light scattering Particle scattering Signal processing Optical interferometry Probes Velocity measurement
Content Type	Text
Resource Type	Article

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