Volume 33 Issue 6
Nov.  2013
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Article Navigation >  Chinese Journal of Space Science  > 2013  >  33(6): 659-663
Quan Ronghui, Zhang Zhenlong, Han Jianwei. Experimental Study of Frequency Spectrum Characteristics in Spacecraft Dielectric Discharging[J]. Chinese Journal of Space Science, 2013, 33(6): 659-663. doi: 10.11728/cjss2013.06.659
Citation: Quan Ronghui, Zhang Zhenlong, Han Jianwei. Experimental Study of Frequency Spectrum Characteristics in Spacecraft Dielectric Discharging[J]. Chinese Journal of Space Science, 2013, 33(6): 659-663. doi: 10.11728/cjss2013.06.659
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Experimental Study of Frequency Spectrum Characteristics in Spacecraft Dielectric Discharging

doi: 10.11728/cjss2013.06.659 cstr: 32142.14.cjss2013.06.659
  • 1.

    College of Astronautics, Nanjing University of Aeronautics and Astronautics, Nanjing 210016

  • 2.

    Center for Space Science and Applied Research, Chinese Academy of Sciences, Beijing 100190

  • Received Date: 2013-07-13
  • Rev Recd Date: 2013-08-25
  • Publish Date: 2013-11-15
    Abstract
  • Deep dielectric charging and discharging effect is one of the key factors threatening the spacecraft safety. Besides the dielectric and its grounding configuration, deep dielectric discharging is also affected by the electron environment in space. The space dielectrics such as FR4, Teflon and Polyimide were tested in a simulated space radiation environment on ground, and their discharging currents and electrical field pulses were recorded. By analyzing frequency spectrum characteristics of the discharging transients and the effect of dielectric temperature, electron energy and electron beam intensity, a peak frequency in discharging current was discovered. The result shows that the peak frequency varies with the dielectric thickness and electron energy, while no obvious change was observed at different beam intensities or temperatures.

     

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