航天器电源母线纹波测试系统设计

Design of the spacecraft power bus ripple measurement system

Institute of Manned Space System Engineering, China Academy of Space Technology, Beijing 100094, China

摘要: 航天器电源母线纹波可以反映系统的稳定性。文章设计了一种基于PXI构架的电源母线纹波测试系统，实现对航天器电源母线安全、不间断的测试，有效地反映航天器测试过程中母线的动态特性，为型号改进设计及试验分析提供参考。该系统解决了以往型号对母线纹波测试只能依靠示波器或示波表，安全系数低、数据信息量小的问题，将在航天器电测中发挥重要作用。
- 航天器 /
- 电性能测试 /
- 母线纹波 /
- PXI构架
Abstract: The power bus ripple of spacecraft reflects the spacecraft's health condition and can be used to predict its future trend. This paper provides a design of a power bus ripple measuring system based on the PXI frame, and a certain spacecraft is tested in an uninterrupted test for the power bus safety to give the dynamic characteristics of the power bus. The methodology can be used in the model design and test analysis. This system solves the problems, such as the low security and the small data capacity in the past years based merely on oscilloscope or scope meter to test the ripple, and it might play a key role in the electrical test of spacecraft.
- spacecraft /
- electrical test /
- power bus ripple /
- PXI frame

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