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基础压力是容积真空泵的特征性能指标,但作为容积泵一员的中真空罗茨真空泵却不是,它的性能在很大程度上依赖、取决于前级真空泵和测试条件,只有漏率才是罗茨真空泵的特征性能指标。本文分析了极限压力、基础压力和漏率三者之间的关系,着重指出,漏率的测量与前级泵无关,也基本上不受环境温度的影响,应取代极限压力(基础压力)作为中真空罗茨真空泵的特征性能指标。
The basic pressure is the characteristic index of the volumetric vacuum pump, but it is not a medium vacuum Roots vacuum pump which is a member of the positive displacement pump. Its performance depends to a great extent, depending on the front vacuum pump and the test conditions, Ib vacuum pump characteristic performance indicators. This paper analyzes the relationship between the ultimate pressure, the basic pressure and the leakage rate. It is emphasized that the measurement of the leakage rate is independent of the fore-stage pump and is basically unaffected by the ambient temperature. Instead of the ultimate pressure (basic pressure) Characteristics of Vacuum Roots Vacuum Pumps.