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Electron induction based charging/discharging simulation method

A simulation method, charging and discharging technology, applied in the direction of measuring electricity, measuring electrical variables, measuring devices, etc., can solve the problems of long pulse duration, high current intensity, short ESD rise time, etc., and achieve the effect of large scalability

Inactive Publication Date: 2019-01-04
景祝强
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] The ESD discharge pulse waveform induced by space charging has the characteristics of short rise time, high current intensity, and long pulse duration, but the ESD generator used for general ground electrostatic interference test cannot meet the demand

Method used

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  • Electron induction based charging/discharging simulation method
  • Electron induction based charging/discharging simulation method
  • Electron induction based charging/discharging simulation method

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Embodiment Construction

[0055] The electron-induced charge-discharge simulator of the present invention will be described in detail below with reference to the accompanying drawings and embodiments.

[0056] Such as figure 1 As shown, a kind of charge-discharge simulator based on electron induction of the present invention is mainly made up of electron source (1), shielding body (2), discharge sample (6) and vacuum pump (11), and described electron source (1) emits The electron beam (3) is injected into the discharge sample (6) through the vacuum cavity (4) formed by the shield (2). The discharge sample (6) has a back electrode (7) on one side, and the discharge conduction cable (9) passes through the shield The body (2) is connected to the back electrode (7), the discharge conduction cable (9) is wrapped by the insulating layer (10), the discharge sample (6) is fixed on the sample stage (5), and the sample stage (5) is on the control rail (8 ), one end of the control rail (8) is fixed inside the sh...

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Abstract

The invention provides an electron induction based charging / discharging simulation method. The method comprises that the type of an electron source is determined according to a tested device / system and a using environment thereof, electron energy and flux are emitted, and material and size of a discharging sample are determined; the distance from the discharging sample and the electron source is adjusted so that the electron flux in the surface of the sample approaches that of the environment; a vacuum pump is started, the electron source is started when the vacuum degree realizes 10-4 pascal,and electrons are injected into the discharging sample; and when the maximal electric field in the discharging sample satisfies conditions, discharging occurs, and a discharging pulse is generated, led out and and injected to the tested device / system. The method can be used to simulate discharging in different conditions, can be expanded widely, and can be used to complete charging / discharging test of different types of tested systems on the ground.

Description

[0001] This application is a divisional application of a patent with an application date of October 1, 2015, an application number of 201510638264.4, and an invention title of "A Charge-Discharge Simulator Based on Electronic Induction". technical field [0002] The invention belongs to the field of electromagnetic compatibility testing, and is mainly used for the charging and discharging test of spacecraft, and can also be used for conventional electrostatic interference tests of general electronic products. Background technique [0003] The charging and discharging effect of spacecraft includes surface charging and discharging and deep charging and discharging. In a hot plasma environment, it can be charged to a negative potential, up to about -10kV. The negative potential on the spacecraft can attract ions, thereby accelerating the aging of the surface of the spacecraft. When the spacecraft is in direct sunlight, the sun-facing surface will Bring a positive potential, and...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/00
Inventor 汪金龙
Owner 景祝强
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