Experimental study on characteristics of nanosecond-pulse surface dielectric barrier discharge

The characteristics of nanosecond-pulse surface dielectric barrier discharge (DBD)are investigated in air at atmospheric pressure with the domestic repetitive unipolar nanosecond-pulse generator， the characteristic of surface DBD is investigated in this paper. It is found that nanosecond-pulse surface DBD is a filamentary discharge in essence. The discharge happens during the rising time of the applied voltage pulse. Higher applied voltage and Higher repetitive frequency lead to intenser and more uniform discharge. Voltage amplitudeaffects the discharge uniformity more， while pulse repetition frequency affects the discharge intensity more. There is an optimum electrode gap width to get the best electrical characteristics of surface DBD. Moreover， surface flashover is prone to happen when glass is chosen as dielectric barrier.