Fundamental Study on Shape Measurements of Nonspherical Particles Using LDV Optics

Hiroshi Morikita; Kazuhiro Kobashi; Koichi Hishida; Masanobu Maeda

doi:10.1299/kikaib.58.259

Fundamental Study on Shape Measurements of Nonspherical Particles Using LDV Optics

Hiroshi Morikita, Kazuhiro Kobashi, Koichi Hishida, Masanobu Maeda

Research output: Contribution to journal › Article › peer-review

Abstract

A new technique for particle shape measurements has been examined using a LDV optical system for nonspherical particles. The principle of the present measuring system is based on the phase Doppler technique. Fringe pattern reflected to the backwards direction is captured by CCD camera and is processed to detect the spatial distortion of fringes, which enables us to estimate the local curvature of nonspherical particles. Calibration has been carried out by metal spheres of several sizes and nonspherical particles with an ellipsoidal revolution. The accuracy of ellipsoidal particle sizing could be estimated within 7 percent for the radius of local curvature.

Original language	English
Pages (from-to)	259-263
Number of pages	5
Journal	Transactions of the Japan Society of Mechanical Engineers Series B
Volume	58
Issue number	545
DOIs	https://doi.org/10.1299/kikaib.58.259
Publication status	Published - 1992
Externally published	Yes

Keywords

LDV
Multiphase Flow
Optical Measurement
Particle Sizing
Phase Doppler Anemometry

ASJC Scopus subject areas

Condensed Matter Physics
Mechanical Engineering

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10.1299/kikaib.58.259

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title = "Fundamental Study on Shape Measurements of Nonspherical Particles Using LDV Optics",

abstract = "A new technique for particle shape measurements has been examined using a LDV optical system for nonspherical particles. The principle of the present measuring system is based on the phase Doppler technique. Fringe pattern reflected to the backwards direction is captured by CCD camera and is processed to detect the spatial distortion of fringes, which enables us to estimate the local curvature of nonspherical particles. Calibration has been carried out by metal spheres of several sizes and nonspherical particles with an ellipsoidal revolution. The accuracy of ellipsoidal particle sizing could be estimated within 7 percent for the radius of local curvature.",

keywords = "LDV, Multiphase Flow, Optical Measurement, Particle Sizing, Phase Doppler Anemometry",

author = "Hiroshi Morikita and Kazuhiro Kobashi and Koichi Hishida and Masanobu Maeda",

year = "1992",

doi = "10.1299/kikaib.58.259",

language = "English",

volume = "58",

pages = "259--263",

journal = "Nihon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B",

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publisher = "Japan Society of Mechanical Engineers",

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T1 - Fundamental Study on Shape Measurements of Nonspherical Particles Using LDV Optics

AU - Morikita, Hiroshi

AU - Kobashi, Kazuhiro

AU - Hishida, Koichi

AU - Maeda, Masanobu

PY - 1992

Y1 - 1992

N2 - A new technique for particle shape measurements has been examined using a LDV optical system for nonspherical particles. The principle of the present measuring system is based on the phase Doppler technique. Fringe pattern reflected to the backwards direction is captured by CCD camera and is processed to detect the spatial distortion of fringes, which enables us to estimate the local curvature of nonspherical particles. Calibration has been carried out by metal spheres of several sizes and nonspherical particles with an ellipsoidal revolution. The accuracy of ellipsoidal particle sizing could be estimated within 7 percent for the radius of local curvature.

AB - A new technique for particle shape measurements has been examined using a LDV optical system for nonspherical particles. The principle of the present measuring system is based on the phase Doppler technique. Fringe pattern reflected to the backwards direction is captured by CCD camera and is processed to detect the spatial distortion of fringes, which enables us to estimate the local curvature of nonspherical particles. Calibration has been carried out by metal spheres of several sizes and nonspherical particles with an ellipsoidal revolution. The accuracy of ellipsoidal particle sizing could be estimated within 7 percent for the radius of local curvature.

KW - LDV

KW - Multiphase Flow

KW - Optical Measurement

KW - Particle Sizing

KW - Phase Doppler Anemometry

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ER -

Fundamental Study on Shape Measurements of Nonspherical Particles Using LDV Optics

Abstract

Keywords

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