Electric parameter measurement of dielectric barrier discharge

The electrical parameter method and computer data processing based on Lissajous figures were used to investigate the characteristics of dielectric barrier discharge (DBD), analyze the discharge voltage-current waveform, and evaluate the discharge energy under different discharge power. Meanwhile, the efficiency energy ratio of quantum yield for active substance in DBD was examined by optical emission spectroscopy (OES). The results demonstrate that the discharge voltage-current waveform, discharge energy, equivalent capacitance of the discharge gap and the dielectric layer of DBD can be obtained quickly. The discharge energy and equivalent capacitance both increased, and the dielectric capacitance decreased with increasing input power of high voltage power supply. Additionally, the quantum yield of active substance in DBD is a function related to discharge energy.