Title :
Optical correlation velocimetry: An aid to particle sizing by acoustic emission measurement
Author :
Huang, Chunyan ; Shen, Jiaqi ; Cai, Xiaoshu
Author_Institution :
Inst. of Particle & Two-phase flow Meas. Technol., Univ. of Shanghai for Sci. & Technol., Shanghai, China
Abstract :
The particle size of a particle can be acquired through signal analysis of acoustic emission measurement from impact of the particles onto a plate, provided that the impacting velocity of the particles as well as some characteristic parameters of the powder material is prior known. The authors proposed optical correlation velocimetry as an aid to acoustic emission measurement. The measuring apparatus was built for simultaneous measurement of the acoustic emission signals from impact of free-falling particles onto a plate and optical correlation velocimetry. As shown by the test results, optical correlation velocimetry can provide essential information for acoustic emission signal analysis.
Keywords :
acoustic emission; acoustic signal processing; acoustic variables measurement; powders; velocity measurement; acoustic emission measurement; acoustic emission signal; free-falling particle; optical correlation velocimetry; particle impact velocity; particle sizing; powder material; signal analysis; Acoustic measurements; Atmospheric measurements; Current measurement; Integrated optics; Optical variables measurement; Particle measurements; Stimulated emission; acoustic emission measurement; optical correlation velocimetry; particle size;
Conference_Titel :
Systems and Informatics (ICSAI), 2012 International Conference on
Conference_Location :
Yantai
Print_ISBN :
978-1-4673-0198-5
DOI :
10.1109/ICSAI.2012.6223594
