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Acta Armamentarii ›› 2021, Vol. 42 ›› Issue (11): 2409-2417.doi: 10.3969/j.issn.1000-1093.2021.11.014

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On the Delay Time of Induced Electrostatic Discharge of Metal Electrode under the Action of ESD EMP

ZHANG Jianping1,2, HU Xiaofeng1, LIU Shanghe1, WEI Ming1   

  1. (1.National Key Laboratory of Electromagnetic Environmental Effects, Shijiazhuang Campus, Army Engineering University of PLA, Shijiazhuang 050003, Hebei, China; 2.Unit 32140 of PLA, Shijiazhuang 050061, Hebei, China)
  • Online:2021-12-27

Abstract: For the problem about electrostatic discharge induced by strength electromagnetic field, the delay time of electrostatic discharge of metal electrode is studied to further explore the changing law of its electrostatic discharge under the action of strong electromagnetic field. The electrostatic discharge rule of metal electrode under the action of strong electromagnetic field is emphatically analyzed from the formation process of discharge channel and the mechanism of electrostatic discharge induced by electromagnetic field. The test results show that enhancement in the magniude of radiated field strnegth results in the shorted delay time of induced discharge under the action of strong electromagnetic pulse radiation field, and the voltage between metal electrodes and the air pressure all have impact on the delay time of induced discharge under the action of strong electromagnetic pulse. The delay time of induced discharge gradually shortens and the dispersion of time delay also becomes gradually smaller with the increase in metal electrode voltage, radiated field strength or air pressure.

Key words: strongelectromagneticfield, electrostaticdischarge, strongelectromagneticpulseradiation, induction, delaytime

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