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Proceedings Paper

Characteristics of the falling particles velocity in the air with image analysis
Author(s): Yasuo Katoh; Masahide Miyamoto; Hidetoshi Miike; Kazutoshi Koga
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Paper Abstract

This paper describes the characteristics of the falling particles velocity in the air with the image analysis. Glass beads in a mean diameter 200 micrometers were dropped from an exit of a small nozzle. An application of a new image analysis such as a spatial filtering method based on dynamic image processing with a sequential image data obtained by a high speed video system was carried out. A specified frequency was obtained by the spectrum analysis with the reduced signals. Once a specified frequency was reached, we could calculate the velocity of a particle using the following equation, Vo equals f X (lambda) . These values were compared with the other values obtained by the optical fiber sensor method which was dual light source/receiver type sensor. Consequently, there were slight differences between them.

Paper Details

Date Published: 2 December 1993
PDF: 9 pages
Proc. SPIE 2005, Optical Diagnostics in Fluid and Thermal Flow, (2 December 1993); doi: 10.1117/12.163752
Show Author Affiliations
Yasuo Katoh, Yamaguchi Univ. (Japan)
Masahide Miyamoto, Yamaguchi Univ. (Japan)
Hidetoshi Miike, Yamaguchi Univ. (Japan)
Kazutoshi Koga, Yamaguchi Univ. (Japan)


Published in SPIE Proceedings Vol. 2005:
Optical Diagnostics in Fluid and Thermal Flow
Soyoung Stephen Cha; James D. Trolinger, Editor(s)

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