In situ sensitivity calibration for MSLD in pressure leak testing mode by sniffer has been studied experimentally.
对吸枪法正压检漏灵敏度的实时校准进行了实验研究。
Abstract: Helium mass spectrometer sniffing probe method is widely used in the process of the single point leak testing on the spacecraft.
摘要航天器的单点漏率测试往往采用氦质谱吸枪检漏法，因此，研究该方法的不确定度评定具有重要的工程实际意义。
The presented evaluation method may provide a reference for evaluating the uncertainty about the total leak rate method of spacecraft and vacuum leak testing method.
该评价方法可以为航天器的总漏率测试法和真空检漏法的不确定度评定提供一定的参考依据。
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