Laboratory Simulation of Spacecraft Surface Charging and Discharging Caused Structural Potential Transients and its Interference Test Method on DC-DC Converter

摘要

This paper will introduce the first laboratory simulation of spacecraft surface charging and discharging effect on its structural potential, including test principle, experiments and result curves etc. Surface discharging on spacecraft will cause its structural potential transient . Since structural potential is grounding potential of spacecraft, the reference function of grounding potential will lose during the discharging process. Such structural potential transients are pulse group with high amplitude and high frequency which will easily interference the electronics especially for digital electronics. Based on this principle, an interference test method is developed. A test method of surface discharging caused structural potential transients on output of DC-DC converter are introduced also.