Instantaneous Measurement of Particle Size and Flow Rate by the Parameters of Impact Sound between Particles and a Circular Plate [Translated]<sup>†</sup>

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Effects of particle properties and number of particles on the parameters of sound from the collision between particles and a circular plate is discussed, in relation to measuring particle size and flow rate by the parameters of the impact sound. <br>The sound pressure is proportional to the number of particles colliding with the plate, and the characteristic frequency of the sound relates to the particle diameter. Moreover, particle size distribution can be measured by the intensity of the characteristic frequency component of each particle diameter. <br>These results show that the particle size distribution and the mass flow rate of particles can be measured instantaneously by the parameters of impact sound between particles and a circular plate.<br><br>† This report was originally printed in KAGAKU KOGAKU RONBUNSHU 16(5), 1067-1073 (1990) in Japanese, before being translated into English by KONA Editorial Committee with the permission of the editorial committee of the Soc. Chemical Engineers, Japan.

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