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

对气体放电场中观测到的几种奇异动力现象进行了研究。它们是静电摩西效应、电晕射流现象和静电水射流现象。静电摩西效应：在一个阈值电压上，针脚对极板电极系统中发生电晕放电，并且由于离子风产生了相对较大的排斥力，大约为100 чN。它使水下沉，甚至用肉眼也能观察到中心有一大片下沉的水，大约有几个100чm。这一现象被用作微型机器的驱动力。电晕喷射现象：当电晕放电极细时，观察到针电极的侧向旋转。旋转频率随外加电压的增加而增加。离子风产生的轴向斥力是旋转的原因。水射流现象：在充满水的绝缘毛细管与金属板电极之间施加高压时，观察到水射流现象。这有望用于新的喷墨打印头。提出了静电分纸和送纸系统的新机制，实现了高可靠性的打印机送纸系统。

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.