Real-Time Particle Size and Charge Estimation from Laser Doppler Burst Signals using Quadrature Demodulation and Correlation Techniques

摘要：

This paper describes an integrated signal processing system based on Quadrature Demodulation (QD) and correlation techniques to obtain particle size and charge simultaneously using Phase Doppler Anemometry (PDA).By solving the equation of particle motion in an AC electric field combined with the measurement of its size and velocity,the magnitude as well as the polarity of the particle charge can be obtained.The Matlab Simulink models of the signal processing system have been implemented and tested on the particle with velocity amplitude approximately from 16mm/s to 550mm/s.The corresponding charge measurement range is from several electrons to the saturation level.

作者: Lu Zhang Janusz Kulon

作者单位: Faculty of Advanced Technology,University of Glamorgan,Pontypridd,CF37 1DL,UK

会议类型: 国际会议

会议名称: 9th International Conference on Signal Processing(第九届国际信号处理学术会议)(ICSP08)

会议地点: 北京

会议语种:英文

在线出版日期: 2008-10-26（万方平台首次上网日期，不代表论文的发表时间）