In this paper, the performance of the airtightness for vacuum coating equipment, the characteristics of leak detection with Helium Mass-spectrometer and the leak detection system are described.
本文论述了真空镀膜设备气密性的特点、氦质谱仪检漏特点及其检漏系统，说明氦质谱仪检漏是检查真空镀膜设备漏气的最有效的方法。
In order to gain the real leak rate under simulating operating conditions, using the pressurized leak detection method of helium mass spectrometer leak detector, the accurate data are obtained.
为了直接获得工作状况下的漏率，在模拟工况条件下，采用氦质谱检漏仪正压检漏法可满足这样的要求。
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