不同结构介质阻挡放电的放电特性

Study on discharge characteristic of different configurable DBD

研究了在大气压氮气流中、不同激励电源电压条件下,具有单、双两种电介质层结构的介质阻挡放电装置的放电特性,利用CCD影像技术和放电电压 电流波形进行了分析和讨论.结果表明,无论是哪种结构的介质阻挡放电,在大气压、氮气条件下微放电是介质阻挡放电等离子体的本质.在通常条件下观察到的大气压窄间隙介质阻挡放电等离子体均匀而强烈的放电形貌实际上是微放电集体作用的结果.

At the flow of N_2, discharge characteristic of the different configurable DBD at atmospheric pressure is studied. Image technique of CCD and u-t (i-t) waveform of DBD are used to analyse and discuss. The results indicate that the nature of DBD plasma is micro-discharges no matter which configuration ti is, homogeneous and strong image of DBD plasma on usual conditions is in fact the collective effect of micro-discharges.