Basic Study of Electrostatic Induced Voltage in a Metal Box Caused by Movement of a Charged Body

带电体运动引起金属盒内静电感应电压的基础研究

• 批准号: 17560304
• 负责人: OHKUMA Yasunori
• 金额: $ 2.37万
• 依托单位: Tokyo University of Agriculture and Technology
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2005
• 资助国家: 日本
• 起止时间: 2005 至 2006
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-17560304/
• 关键词: electrostatic induced voltage; movement of charged body; partly opened metal box; optical electric field sensor

Movement of electrostatic charged objects, such as a human body, near electronic equipment placed in a partly opened metal box can lead to the appearance of voltage induced in conductive parts of the equipment. The electrostatic induced voltage can cause malfunctions and even breakdowns of the equipment. The purpose of this study is to give a guideline for preventing a malfunction or a failure of electronic apparatus.1. Measurement of the electrostatic induced voltageIn this study, the experimental device represented a situation in which a charged human body passes through near a partly opened metal box. And the induced voltage between two metal sheets having different areas placed in the metal box was measured. Measurement of the induced voltage was carried out using a sphere gap and an electromagnetic wave sensor in the metal box. Experimental results indicated that as follows. (1)The induced voltage between two metal sheets become higher when the area of metal sheet increased and th … More at this voltage depended only slightly on the area of grounded metal sheet. (2) Within the limits of this experiment, when the area of an ungrounded metal sheet is smaller than 0.18cm^2, the induced voltage can be reduced to less than the voltage that electronic components are broken. (3) When a metal sheet of one side was grounded, electrostatic discharge by the induced voltage occurred twice, but when two metal sheets were ungrounded, electrostatic discharge occurred many times.2. Measurement of the electromagnetic noise by the electric dischargeIn this study, for the measurement of the change in time of the induced voltage and the electromagnetic noise which was occurred with the sphere gap by the induced voltage in the metal box, the characteristic of an optical electric field sensor was examined by the measurement of the electric field strength. Experimental results indicated that it could be used as a surface electrometer the optical electric field sensor by calculating conversion equation and that the characteristics of the electromagnetic noise are different with value of the electric discharge voltage. Less

放置在部分打开的金属盒中的电子设备附近的静电电荷物体（例如人体）的运动可能会导致设备导电部件中引起的电压的出现。静电诱导的电压会导致设备的故障甚至崩溃。这项研究的目的是提供预防故障或电子设备故障的指南。1。静电诱导的电压的测量本研究代表了一种情况，其中带电的人体通过部分打开的金属盒子在附近穿过。测量了两个将不同区域放置在金属盒中的金属板之间的感应电压。使用球体间隙和金属盒中的电磁波传感器对诱导电压进行测量。实验结果表明如下。 （1）当金属板的面积增加，而在此电压下的更多面积仅略微取决于接地金属板的面积时，两个金属板之间的感应电压变得更高。 （2）在本实验的限制内，当未接地的金属板的面积小于0.18厘米^2时，诱导的电压可以降低至小于损坏电子组件的电压。 （3）当一侧的金属板接地时，诱导电压的静电放电两次，但是当两个金属板未接地时，静电放电发生了很多次。2。通过在这项研究中通过电排放来测量电子噪声，以测量诱导电压的变化以及金属盒中诱导的电压在球体间隙中发生的电子噪声，通过测量电场强度的测量来检查光学电场传感器中光学电场传感器的特征。实验结果表明，它可以通过计算转换方程来用作表面电气器，并且电子噪声的特性随电排放电压的值而不同。较少的