The electrostatic sensor is a rapidly developing particle monitoring sensor. This paper applies sensor array to inverse the information carried by detected multiple charged particles precisely. It breaks through the constraint that the detailed information of particles cannot be obtained in previous studies. The proposed method can be widely applied to oil line and gas path debris monitoring. The sensing mathematical model and the finite-element model are established. A compressive sensing-based method is proposed to invert the information of charged particles. Through simulation and experimental verification, the method can accurately estimate the centroid of multiple particles, the total charge quantity of the particle cluster, the spatial position of each particle and the charge quantity carried by each particle in the multiple particles with a low error rate when the multiple particles are distributed near the pipe wall of flow channel.
"Research on Estimation Method of Information of Multiple Charged Particles Using Electrostatic Sensor Array," Progress In Electromagnetics Research C,
Vol. 115, 127-144, 2021. doi:10.2528/PIERC21072202
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