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Single-Camera 3-D Particle Tracking Velocimetry Using Liquid Crystal Image Projector

[+] Author Affiliations
Takehiro Ido

Kinjo College, Matto, Japan

Hiromasa Shimizu

ShinMaywa Industries, Ltd., Takarazuka, Japan

Yoichi Nakajima, Masa-aki Ishikawa, Yuichi Murai, Fujio Yamamoto

Fukui University, Fukui, Japan

Paper No. FEDSM2003-45204, pp. 2257-2263; 7 pages
  • ASME/JSME 2003 4th Joint Fluids Summer Engineering Conference
  • Volume 1: Fora, Parts A, B, C, and D
  • Honolulu, Hawaii, USA, July 6–10, 2003
  • Conference Sponsors: Fluids Engineering Division
  • ISBN: 0-7918-3696-7 | eISBN: 0-7918-3673-8
  • Copyright © 2003 by ASME


Three-dimensional Particle Tracking Velocimetry (3-D PTV) is one of a useful measurement tools to understand complicated structure of flow. This paper concerns with a system of 3-D PTV based on color image processing using a liquid crystal image projector. The merit of the present system is inexpensive setup and needless of complicated procedure for stereo-pair matching of particles since all the process are carried out by single-camera. The accuracy of color-based PTV depends on the image quality and the optical characteristics of color-light scattering on tracer particles. After detailed discussion on these technical problems is mentioned, two kinds of experimental demonstration are shown by a chamber-inside steady flow and a vortex-shedding flow behind rectangular cylinder.

Copyright © 2003 by ASME



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