Particle size characterization by ultrasonic attenuation spectra

作     者：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 

作者机构：Institute of Particle and Two-Phase Flow Measurement University of Shanghai for Science and Technology Shanghai 200093 China 

出 版 物：《Particuology》 (颗粒学报（英文版）)

年 卷 期：2008年第6卷第4期

页      面：276-281页

核心收录：

学科分类：07[理学] 08[工学] 070206[理学-声学] 0802[工学-机械工程] 0702[理学-物理学] 

基　　金：National High Technology Development 863 Program(2006AA03Z349) National Science Foundation of China (50706029) Shang-hai Education Committee Foundation (07ZZ88) 

主　　题：Ultrasonic spectrum Particle Size Inversion 

摘      要：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.