串接法中辅助元件的最优选择  

Optimal Selection of Auxiliary Components in Serial Connection Method

作　　者：惠伟安 徐文灿[2] 蒋皖 陈泽熹 HUI Weian;XU Wencan;JIANG Wan;CEHN Zexi(National Quality Supervision and Inspection Center of Pneumatic Products,Ningbo Zhejiang 315500,China;College of Mechanical and Electrical Engineering,North China University of Technology,Beijing 100041,China;Ningbo Fenghua District Quality and Technology Supervision and Inspection Center,Ningbo Zhejiang 315500,China)

机构地区：[1]国家气动产品质量监督检验中心,浙江宁波315500 [2]北方工业大学机电学院,北京100041 [3]宁波市奉化区质量技术监督检测中心,浙江宁波315500

出　　处：《机床与液压》2020年第8期32-36,共5页Machine Tool & Hydraulics

基　　金：国家质检总局科技计划项目(2017QK148);宁波市奉化区科技计划项目(20173305);宁波市质量技术监督局科研项目(2019009)。

摘　　要：使用GB/T 14513-1993标准规定的串接声速排气法,按文中指导选用快换接头或管接头作为辅助元件,能大大降低临界压力比的测量误差,仅为0.032~0.0425,这是用其他各种方法测临界压力比的测量误差中最小的。The measurement error of critical pressure ratio can be greatly reduced by using concatenation sonic exhaust method which is specified by the GB/T 14513-1993 standard and choosing quick change joint or pipe joint as auxiliary component according to the guidance of this paper.It is only in 0.032~0.0425,which is the smallest measurement error of the critical pressure ratio by other methods.

关 键 词：串接声速排气法 流量特性 有效截面积 临界压力比 最优选择 

分 类 号：TH138[机械工程—机械制造及自动化]