Shadow Doppler velocimetry with double fiber-array sensors

Shadow Doppler velocimetry with double fiber-array sensors Shadow Doppler velocimetry (SDV) systems with double fiber-array sensors were developed for the measurements of particle trajectory angles and for the stereoscopic investigation of particles. The parallel two-line fiber-array configuration improves the accuracy of the trajectory angle measurement in a plane perpendicular to the optical axis, which contributes to the high accuracy of the particle shape reconstruction process. It also provides information on the other trajectory angle in a plane parallel to the two laser beams. Furthermore, it realizes "time-of-flight" velocity measurement, which provides the possibility to simplify the original SDV setup by removing the laser Doppler velocimetry (LDV) components. On the other hand, stereoscopic SDV was also developed, which is effective in cases where three-dimensional characteristics of shape, orientation, or behavior of particles are important. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Experiments in Fluids Springer Journals

Shadow Doppler velocimetry with double fiber-array sensors

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Publisher
Springer-Verlag
Copyright
Copyright © 2004 by Springer-Verlag
Subject
Engineering
ISSN
0723-4864
eISSN
1432-1114
D.O.I.
10.1007/s00348-003-0601-5
Publisher site
See Article on Publisher Site

Abstract

Shadow Doppler velocimetry (SDV) systems with double fiber-array sensors were developed for the measurements of particle trajectory angles and for the stereoscopic investigation of particles. The parallel two-line fiber-array configuration improves the accuracy of the trajectory angle measurement in a plane perpendicular to the optical axis, which contributes to the high accuracy of the particle shape reconstruction process. It also provides information on the other trajectory angle in a plane parallel to the two laser beams. Furthermore, it realizes "time-of-flight" velocity measurement, which provides the possibility to simplify the original SDV setup by removing the laser Doppler velocimetry (LDV) components. On the other hand, stereoscopic SDV was also developed, which is effective in cases where three-dimensional characteristics of shape, orientation, or behavior of particles are important.

Journal

Experiments in FluidsSpringer Journals

Published: Jul 19, 2003

References

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