MEASUREMENT OF PARTICLE SIZE DISTRIBUTION BY ACOUSTIC EMISSION METHOD

Miroslav Uher, Petr Benes

Abstract

Continuous measurement of size distribution of particles is the necessary parameter regarding the control of some specific production processes. A possible solution is the use of the acoustic emission method which is based on the measurement and analysis of pressure pulses generated by an impact of solid particles against a solid obstacle. Our paper focuses on the practical verification of the method in laboratory conditions. Two sets of experiments were conducted with air-borne particles. Based on the completed experiments it can be concluded that it is possible to establish the proportion of solid particle fractions using the acoustic emission method.

Keywords

acoustic emission, solid particle flow, particle size distribution, Hertz theory of impact, power spectrum analysis

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IMEKO-WC-2012-TC9-P4.pdf

DOI

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IMEKO TC

TC9 - Flow Measurement

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