The effect of the particle size and concentration on the operation and performance of the Masuda "Boxer-Charger" was discussed by experimental study. In Boxer-Charger, the charged particles undergo only oscillation with small amplitude so that they are not collected on the electrode. Also, back discharge effect unavoidable in uni- directional charging can be avoided.
Experiments showed that the charge of particles was increased linearly with increasing the Main voltage and the Excitation voltage. But, the parasitic discharge was occurred when the Main voltage was higher than 12 kV so that the charging performance was decreased sharply. Increasing the particle concentration, the charge of particles was decreased but the deposition to electrodes was suppressed irrespective of the particle size and concentration.
Comparing the DC corona discharge, the Boxer-Charger could supply the charged particles without the loss by the deposition to the electrode and the limitation of operation was determined by the parasitic discharge occurred at higher than 4 kV/cm, Main electric field strength.
