Discharge-Coupled-Vibration of Pin Electrode in Pin-to-Plate System

在销钉电极支撑轴向刚度较低的情况下，观察到销钉-板式气体放电系统中的奇异动力学现象。一种是在流光电晕引起的暗放电和正电晕放电过渡时观察到的针状电极垂直于平板电极的振动。由于负电晕的不稳定，在负电晕放电中也观察到了类似的振动。这两种振动都是电晕放电时离子风产生的脉动或脉动静电力所致的强迫振动。对于软支撑的销钉电极，在火花放电时观察到另一种轴向振动。振动与火花放电的发生是相互耦合的。隐含地计算了在火花放电时施加在销钉电极上的力，并阐明了这种力是有吸引力的，约为1mN，并且随着施加电压的增加而变大。虽然在火花放电过程中产生吸力的原因目前还不清楚，但这些现象有望用于设计一种新型的无臭氧充电器，并澄清电子照相双组分磁刷显影子系统中“带珠”的基本机理。

Some kinds of singular dynamic phenomena were observed in a pin-to-plate gas discharge system when the axial stiffness of a support of the pin electrode was low. One was vibration of the pin electrode perpendicular to the plate electrode observed at the transition from the dark discharge and the positive corona discharge due to the streamer corona. Similar vibration was observed in the negative corona discharge due to instability of the negative corona. Both vibrations were the forced vibration due to pulsative or fluctuating electrostatic force caused by ionic wind at corona discharging. Another axial vibration was observed at spark discharge for the softly supported pin electrode. The vibration was coupled with the occurrence of the spark discharge. The force applied to the pin electrode at the spark discharge was implicitly evaluated and it was elucidated that the force was attractive, in the order of 1 mN, and it became large in accordance with the increase of the applied voltage. Although the reason why attractive force is induced during the spark discharge is not clear so far, these phenomena are expected to be utilized for the design of a new ozone-free charger and the clarification of a fundamental mechanism of "bead-carry-out" in a two-component magnetic brush development subsystem of electrophotography.