Clarifications and Applications of Some Singular Dynamic Phenomena in Gas Discharge Field

研究了气体放电场中观察到的几种奇异动力学现象。它们是静电摩西效应、电晕喷流现象和静电水喷流现象。静电摩西效应：在阈值电压以上，针板电极系统发生电晕放电，离子风产生较大的排斥力，约为100чN。它抑制了水，甚至用肉眼也能观察到中心有一个大的水深，大约100чm。这一现象被用作微机械的驱动力。电晕喷射现象：当电晕放电极细时，可以观察到电晕放电时电针电极的横向旋转。旋转频率随外加电压的增加而增大。离子风产生的轴向排斥力是造成涡旋的原因。水射流现象：当在充满水的绝缘毛细管和金属板电极之间施加高压时，观察到水射流现象。为了实现高可靠性的打印机送纸系统，还提出了静电分纸和送纸系统的新机制。

Some kinds of singular dynamic phenomena observed in gas discharge field were investigated. These are electrostatic Moses effect, corona jet phenomenon, and electrostatic water jet phenomenon.1. Electrostatic Moses effect : Over a threshold voltage, corona discharge took place in a pin-to-plate electrode system and a relatively large repulsive force, in the order of 100 чN, was induced due to the ionic wind. It depressed water and a large depression of water, in the order of several 100чm at the center, was observed even to the naked eye. This phenomenon was utilized for a driving force of a micro-machine.2. Corona Jet Phenomenon : Lateral whirling of the pin electrode was observed at corona discharging when the pin electrode was extremely fine. Whirling frequency was increased with the increase of the applied voltage. Axial repulsive force due to the ionic wind was the cause of the whirling.3. Water Jet Phenomenon : When high voltage was applied between an insulative capillary tube filled with water and a metal plate electrode, water jet phenomenon was observed. This is expected to be utilized for a new inkjet printhead.New mechanism of electrostatic paper-separation and paper-feed systems was also proposed to realize highly a reliable paper handling system for printers.