Electrical discharge and electrostatics are used for the industrial application of a copying machine and electrostatic spraying. However, the electrical discharge and electrostatics occasionally cause malfunction or failure of electronic equipment. When a human body moves in an office, it is electrified up to 10 kV or more. A microelectronic device used in the electronic equipment causes an error owing to the voltage of less than 10 V. When the charged human body moves near the electronic equipment, high induced voltage is generated in the metal box. Comprising electronic equipment, the box is occasionally used at the floating potential of an ungrounded condition. The induced voltage generated for the ungrounded metal box is higher than that generated for the grounded metal box. The results show that the induced voltage generated in an ungrounded metal box is 120% of the inverse polarity against a charged body when the charged body moves away from the box. The induced voltage generated in the ungrounded metal box is higher than that generated on the box. These results would be helpful in designing electronic equipment without malfunctions or failure.

中文翻译：

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当带电物体从金属盒中移开时，在不接地的金属盒中和金属盒上产生的静电感应电压

放电和静电用于复印机和静电喷涂的工业应用。但是，放电和静电有时会引起电子设备的故障或故障。当人体在办公室中移动时，其带电电压可达10 kV或更高。电子设备中使用的微电子设备由于电压低于10 V而引起错误。当带电人体在电子设备附近移动时，金属盒中会产生高感应电压。包含电子设备的盒子有时会在不接地的情况下以浮动电位使用。未接地金属盒产生的感应电压高于接地金属盒产生的感应电压。结果表明，当带电体移离电箱时，在不接地的金属盒中产生的感应电压是与带电体相反极性的120％。在未接地的金属盒中产生的感应电压高于在金属盒中产生的感应电压。这些结果将有助于设计没有故障或故障的电子设备。