Experimental investigation and numerical modeling of the effect of voltage parameters on the characteristics of low-pressure argon dielectric barrier discharges

Abstract

In this paper, we have presented the experimental and modeling results of the effect of voltage parameters on the characteristics of the low-pressure Ar dielectric barrier discharge. The frequency and amplitude range was set at 5–19 kHz and 255–370 V, respectively. Our investigations showed that the voltage parameters such as amplitude and frequency have large impact on the discharge behavior. Increase in applied voltage amplitude leads to an increase in discharge current. It is also shown that with increasing applied voltage amplitude, the plasma radiations are increased and move to the middle of discharge gap. Also, it causes that surface charge density is increased and discharge is distributed on the dielectric surface. With increasing voltage frequency, discharge current and plasma radiations are increased, but discharge is not distributed on the dielectrics surface. It is also shown that with increasing voltage frequency and amplitude, the discharge kinetic is changed.