A study on measuring distribution of nanoparticle size based on ultrasonic attenuation spectrum

作     者：HOU Huaishu SU Mingxu CAI Xiaoshu HOU Huaishu~(1,2) SU Mingxu~1 CAI Xiaoshu~1 (1 Institute of Particle and Two Phase Flow Measurement,University of Shanghai for Science and Technology Shanghai 20093) (2 College of Mechanical Engineering,Shanghai Institute of Technology Shanghai 201418)

作者机构：Institute of Particle and Two Phase Flow Measurement University of Shanghai for Science and Technology Shanghai 20093 College of Mechanical Engineering Shanghai Institute of Technology Shanghai 201418 

出 版 物：《Chinese Journal of Acoustics》 (声学学报（英文版）)

年 卷 期：2011年第30卷第3期

页      面：261-271页

学科分类：07[理学] 070205[理学-凝聚态物理] 08[工学] 080501[工学-材料物理与化学] 0805[工学-材料科学与工程（可授工学、理学学位）] 080502[工学-材料学] 0702[理学-物理学] 

基　　金：supported by the National Natural Science Foundation of China(50706029,50836003) the Shanghai Nanometer Program(0852nm06700) 

主　　题：纳米粒子悬浮液 超声波测量 超声衰减 粒子尺寸分布 纳米二氧化钛 纳米颗粒 粒度分析仪 路径长度 

摘      要：Through varying the ultrasonic path length, the ultrasonic attenuation spectrum of the nanometer particle suspensions is measured. Based on the McClements and BLBL model, the Optimum Regularization Technique is employed to inverse the distribution of particle size for nanometer particles. Experiments are carried out to measure the distribution of particle size of aqueous nanometer titanium dioxide suspension with volume fraction of 1%. The ultrasonic measurement results show good consistence with those from TEM （Transmission Electron Mi- croscope） and centrifugal sedimentation particle size analyzers, which indicate that measuring distribution of the particle size of nanometer particles with the ultrasonic attenuation spectrum is feasible and reliable.