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目的研究用分流法计算标准湿度发生器流量比的方法．方法依据该湿度发生器原理，提出流量比计算方法；采用一组简化的饱和水汽压计算公式，在－５０～５０℃的温度范围内的计算结果与用Ｗｅｘｌｅｒ公式的计算结果最大误差小于０．２％；并用增强系数ｆｗ对实际气体的饱和水汽压公式进行了修正．结果得到流量比公式ｑ１／ｑ２＝γｗ，ｔｃ／γｗ，ｔｄ－１，并给出了饱和混合比γｗ，ｔ的具体计算方法．结论该方法可作为研制分流式标准湿度发生器的理论依据，并可作为该发生器智能化的基础．
Aim To study the method of calculating the flow ratio of standard humidity generator by shunt method. Methods According to the principle of humidity generator, a flow rate calculation method was proposed. A set of simplified saturated vapor pressure calculation formulas were used. The maximum error between the calculation results at -50 ~ 50 ℃ and the Wexler equation was less than 0. 2%; and with the enhancement coefficient fw on the actual gas saturated vapor pressure formula was amended. The results obtained flow ratio formula q1 / q2 = γw, tc / γw, td-1, and gives the concrete mixture ratio γw, t specific calculation method. Conclusion This method can be used as a theoretical basis for the development of a shunt standard humidity generator, and can be used as a basis for the intelligent generator.