流量计与气体流量标准装置同轴连接的研究

摘要

As an important measurement instruments of trade metering,gas flowmeter has been more and more widely used.And the quantity transfer of the flow meter is becoming increasingly significant.In order to realize the accurate measurement,the method of the coaxial connection between gas flowmeter and critical flow venturi nozzle gas flow standard device is studied in this paper,and the coaxial error between this gas flowmeter and standard device within ±1 mm is achieved.%气体流量仪表作为贸易计量的重要计量器具其使用已经越来越广泛,与此同时该流量仪表的量值传递工作具有愈加重要的意义.该文研究气体流量仪表与临界流文丘里喷嘴法气体流量标准装置同轴连接方法,搭建了试验装置,经试验分析可实现该类仪表与标准装置误差在±1mm内的同轴连接,可以更好地完成气体流量仪表的量值传递工作.