Experimental study of a novel micro-wire dielectric barrier discharge

Many types of dielectric barrier discharge (DBD) configurations have been studied in the past as a way to produce non-thermal plasma at atmospheric pressure. Most are based on parallel plane or coaxial electrodes. The electrode configuration studied in this paper has a coaxial geometry, where the inner electrode is a novel glass-coated micro-wire coil. We investigate the effects of the very small diameter of the wire ($\sim$30 $\mu$m) on the characteristics of the discharge. The influence of the excitation frequency (50 Hz - 50 kHz) on the current waveform is analyzed. In view of applications, the ozone production efficiency is compared with standard DBDs.