Particle size characterization by ultrasonic attenuation spectra--颗粒学报PARTICUOLOGY

Su, M., Xue, M., Cai, X., Shang, Z., & Xu, F. (2008). Particle size characterization by ultrasonic attenuation spectra. Particuology, 6(4), 276–281. https://doi.org/10.1016/j.partic.2008.02.001

Particle size characterization by ultrasonic attenuation spectra

Mingxu Su^*, Minghua Xue, Xiaoshu Cai, Zhitao Shang, Feng Xu

Institute of Particle and Two-Phase Flow Measurement, University of Shanghai for Science and Technology, Shanghai 200093, China

10.1016/j.partic.2008.02.001

Volume 6, Issue 4, August 2008, Pages 276-281

Received 20 September 2007, Accepted 18 February 2008, Available online 30 June 2008.

E-mail: sumingxu2002@yahoo.com

Highlights

Abstract

This paper contributes to extracting information from signals of broadband ultrasonic attenuation spectrum for effective utilization in particle size characterization. The single particle scattering model and the coupled-phase model are formulated simultaneously, the relationship between particle size distribution and ultrasonic spectrum is established, and a convergence criterion for calculation is quantified. Demonstration inversion by the optimum regularization factor method is carried out to yield typical numerical results for discussion. With the experimental set-up developed by the Institute of Particle and Two-Phase Flow Measurement (IPTFM) at the University of Shanghai for Science and Technology, sand sediment particle size is measured by attenuation spectrum and analyzed using the above inversion algorithm and theoretical models. To validate the proposed ultrasonic spectrum particle sizing method, results are compared with those obtained by microscopy.

Graphical abstract

Keywords

Ultrasonic spectrum; Particle; SizeInversion

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