Abstract
Experimental and numerical investigations have been carried out on a dynamics of conductive particles in an electric field between parallel plate electrodes to clarify the mechanism of charging process and an action of electrostatic force. Velocities and electric charges of particles were quantified by the experimental observation. Then saturation charge, pull-off charge and charge considering elastic contact between particle and electrode were estimated numerically and the results were compared to the experimental results. These investigations show that the elastic contact plays an important role on the charging of particles.