摘要
提出了一种建立在文丘利喷嘴基础上的,能够在低压条件下进行气体流量测量的方法,实现了较大压力范围内的气体流量测量。通过在绝对压力条件下和20kPa压力条件下的气体流量试验对比,分析了气体流量在常压下测量与在低压下测量所产生的差异的大小和原因。
A measurement for gas flow to be measured at low pressure condition based on Venturi nozzle is introduced. Gas flow measurement has been achived in large pressure range. Through the comparion of gas flow test between absolute pressure and 20kPa pressure, the size and reason of difference has been analyzed under normal and low pressure.
出处
《信息技术》
2009年第2期92-95,共4页
Information Technology
关键词
传感器
低压
气体
流量
sensor
low pressure
gas
flow