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介绍了校准正压漏孔漏率的动态比较法,可以校准的正压漏孔漏率范围为1×10-4~1×10-7Pam3/s。参考漏孔动态比较法是用一只漏率已知的正压漏孔作参考标准,分别让示漏气体通过参考正压漏孔或被校正压漏孔后,在内充大气的累积容器中累积不同的时间,产生大致相同的示漏气体增量;静态膨胀后,测量它们在动态流量法系统中产生的动态平衡分压力,再进行线性近似比较计算出被校正压漏孔的漏率。定量气体动态比较法是采用定量的示漏气体作参考标准,替代参考漏孔动态比较法中示漏气体通过参考正压漏孔后在累积容器中的累积量。
The dynamic comparison method of calibrating leak rate of positive pressure leak is introduced. The leak rate of positive pressure leak can range from 1 × 10-4 to 1 × 10-7Pam3 / s. Reference leak dynamic comparison method is to use a leakage rate of known positive pressure leaks as a reference standard, respectively, so that leak gas through the reference positive pressure leaks or pressure leaks were corrected, filled with atmospheric accumulation of containers In the same time accumulate different time, resulting in roughly the same leakage of gas increment; Static expansion, they measured in the dynamic flow system of dynamic equilibrium partial pressure, and then linear approximation to calculate the leak rate. Quantitative gas dynamic comparison method is the use of quantitative indicator gas as reference gas, instead of the reference leak dynamic comparison method shows the leakage of gas through the reference positive pressure leak in the cumulative amount of accumulated containers.