摘要
该文就GB/T14513-1993如何合理选择辅助元件,被测元件与辅助元件之间的连接管提出了新的建议,有助于提高临界压力比的测值的正确度。分析了串接声速排气法抗扰动的能力。提出使用定压法或变压法,并利用该国家标准的公式计算临界压力比的方法。
In order to enhance determination correctness of critical pressure ratio, new proposals for GBFF14513 are made on how to choice assistant part, and how to choice joint pipe between tested part and assistant part. Anti-perturbation property of serial sonic exhaust method is analyzed in the paper. It is pointed out that even by constant pressure method or change pressure method, critical pressure ratio can be calculated with a formula in GB/T14513.
出处
《液压气动与密封》
2013年第2期65-68,共4页
Hydraulics Pneumatics & Seals
关键词
流量特性的测量
临界压力比
抗扰动能力
determination of flow-rate characteristics
critical pressure ratio
anti-perturbation
