论文部分内容阅读
航天器推进系统的单机产品的漏率测试往往采用氦质谱真空室检漏法,研究该方法测量结果的不确定度评定具有重要的工程应用价值。本文首先对真空室检漏法的原理进行了分析探讨,并从不确定的基础理论出发系统地研究了氦质谱真空室检漏法测量结果的不确定度评定方法,并结合工作的具体案例给出了评价的具体步骤。
Spacecraft propulsion system single product leak rate testing often helium mass spectrometry vacuum chamber leak detection method to study the method of measurement uncertainty evaluation has important engineering value. In this paper, the principle of vacuum chamber leak detection method is analyzed and discussed. Based on the uncertain basic theory, the uncertainty assessment method of helium mass spectrometry vacuum chamber leak detection method is systematically studied. Combined with the specific cases of the work The evaluation of the specific steps.