TY - JOUR
T1 - Simultaneous Measurements of Velocity and Equivalent Diameter of Nonspherical Particles Using Light Scattering Method
AU - Morikita, Hiroshi
AU - Hishida, Koichi
AU - Maeda, Masanobu
PY - 1993
Y1 - 1993
N2 - A new instrument for evaluating the equivalent diameter and velocity of nonspherical particles was developed. The technique is based on the diffraction light intensity method where the light scattered in the forward direction is insensitive to the particle shape but is related to the projected area of the scatterer. A calibration curve between diameter and scattered intensity was determined by a computer simulation using Fraunhofer diffraction theory and the geometrical optics method. Signal processing had been performed with transient recorders and a digital signal processor, working with a personal computer. Various types of irregularly shaped particles, such as cooper, aluminum oxide, glass, polyethylene and stainless steal with diameters ranging from 20 to 200 μm have been examined. The reference diameter of these particles was evaluated by a microscope with an image processing system. Measured size distribution coincided significantly with the reference data, with uncertainty bands of +10 μm, -0 μm in average diameter.
AB - A new instrument for evaluating the equivalent diameter and velocity of nonspherical particles was developed. The technique is based on the diffraction light intensity method where the light scattered in the forward direction is insensitive to the particle shape but is related to the projected area of the scatterer. A calibration curve between diameter and scattered intensity was determined by a computer simulation using Fraunhofer diffraction theory and the geometrical optics method. Signal processing had been performed with transient recorders and a digital signal processor, working with a personal computer. Various types of irregularly shaped particles, such as cooper, aluminum oxide, glass, polyethylene and stainless steal with diameters ranging from 20 to 200 μm have been examined. The reference diameter of these particles was evaluated by a microscope with an image processing system. Measured size distribution coincided significantly with the reference data, with uncertainty bands of +10 μm, -0 μm in average diameter.
KW - LDV
KW - Laser Velocimetry
KW - Multiphase Flow
KW - Optical Measurement
KW - Particle Sizing
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U2 - 10.1299/kikaib.59.3749
DO - 10.1299/kikaib.59.3749
M3 - Article
AN - SCOPUS:0027840964
VL - 59
SP - 3749
EP - 3755
JO - Nihon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B
JF - Nihon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B
SN - 0387-5016
IS - 568
ER -