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In order to study the charging characteristics of aerospace dielectric materials and analyze the influence of the material thickness on the equilibrium potential and the charging time, the differential equation of the surface potential is obtained. The charging expression of the ground simulation space charged process can be attained by solving the differential equation, the simulation curves comparing...
Spacecraft surface charging effect is one of the major threats on spacecraft operational safety. In ground study, electron guns with large incident face are always adopted as simulation sources, and the surface charging test is carried out in Low-pressure environment. This paper focuses on emission stability and beam current uniformity. The results show that the electron gun should be used in conventional...
When the discharge voltage is +8 kV and electrode approaching speed is 0.8 m/s, the test results were sorted and investigated and several ideas are drawn as follows: there are better linear relations between the coupled voltage peak-to-peak value, discharge current peak value and current derivative maximum value. These three parameters are linear with the discharge current rise time. And the relative...
In this paper, a new ESD testing system was designed and the influence of discharge voltage on ESD parameters, e.g. peak value of discharge current, rise time and peak to peak value of induced voltage in a semi-circular loop antenna, and also the reproducibility of experimental results were analyzed used the system. It was concluded that as the approaching speed was constant, the variations of ESD...
In the shielded room, the effect of different factors, which includes different polarity of potential, direction of polarization of antenna, receiving distance, the shape of discharging needle, temperature and humidity etc., on the spectrum of signal radiated from corona discharge. According to the experiment, it concludes that the waveform of signal radiated from corona discharge has a steep rising...
Currently, with the extensive application of electronic devices and systems, the interests in ESD failure in electronic devices had mushroomed rapidly. There were many approaches to analysis static failures. The electronic parametric measurement was the most common approach for parts detection. With high-frequency low-noise Silicon dynatron transistors, in order to find the most sensitive parameter...
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