A new method for testing linear performance of helium mass spectrometer leaker detector

被引：0
|
作者：
Wang Y. [1 ]
Sun L. [1 ]
Yan R. [1 ]
Sun L. [1 ]
机构：
[1] Beijing Institute of Spacecraft Environment Engineering
来源：
Zhongguo Kongjian Kexue Jishu/Chinese Space Science and Technology | 2011年 / 31卷 / 02期
关键词：
Counterflow; Helium mass spectrometer; Leak testing; Linear; Spacecraft;
D O I：
10.3780/j.issn.1000-758X.2011.02.006
中图分类号：
学科分类号：
摘要：
Based on the characteristic that pumping speed of the mechanical pump was constant within a certain pressure range, a new method for testing the linear performance of the leak detector was proposed. Meanwhile, its rationality was also proved through tests. The gas flow in the leak detector was changed by adjusting the inlet pressure of the leak detector. When the helium concentration in mixed gas was constant, the helium gas flow in the leak detector was also changed. So the output of the leak detector was changed. By changing the relationship between the inlet pressure and the output of the leak detector, the linear performance of the leak detector was obtained. The results show that this method is simple, convenient and inexpensive.
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页码：39 / 42
页数：3
相关论文
共 4 条
  • [1] Wang Y., Yan R., Uncertainty evaluation on the sniffing probe method of helium mass spectrometer leak detector for spacecraft, Chinese Space Science and Technology, 30, 4, pp. 71-75, (2010)
  • [2] Wu X., Yan R., Leak Testing, (2005)
  • [3] Wang Y., Yan R., Huang X., The principe research on the sniffing proble method, Spacecraft Environment Engineering, 27, 3, pp. 351-353, (2010)
  • [4] Li L., Linear experiment research on the helium mass spectrometer leak detector
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