Measuring and testing – Particle size
Patent
1987-09-14
1989-07-04
Levy, Stewart J.
Measuring and testing
Particle size
250341, 356336, G01N 1502
Patent
active
048438944
ABSTRACT:
For measuring the sizes of particles in the falling state, electromagnetic waves having different frequencies are transmitted from a transmitter/receiver onto the particles in the falling state and reflected electromagnetic waves having different frequencies reflected from the particles in the falling state and received by the transmitter/receiver. Data of the distribution of sizes of the particles and the average size of the particles are derived from the detected intensities of the received reflected electromagnetic waves.
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Translation of Hirata '252 cited above.
Definition "Electromagnetic Spectrum"; American Heritage Dictionary.
Inaba et al.; "IR Lasar Radar Technique Using Heterodyne Detection for Range-Resolved Sensing of Air Pollutants"; Optics Communication; vol. 14, No. 1; May 1975.
Kawamura Hirotoshi
Matsuo Yoshiteru
Nishikawa Hiroshi
Ohno Jiro
Yashiro HIrokatsu
Levy Stewart J.
Nippon Steel Corporation
Raevis Robert R
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