摘要
提出了一种流量非接触式测量的新方法，即用管外加热套对被测管段加热，因管内流体的流动使其上下游产生温度差，由铂膜电阻将此温差转换成电阻差，从而实现了利用不平衡电桥测量管内流体速度及流量的新构想．
A new method for non-invasive flow measurement is described, To heatthe pipe by a clamp-on heater, the temperature difference upstream and downstreamcaused by flowing fluid is changed into the resistance via Pt-film resistances. Then, theflowrate can be measured using a non-balancing bridge.
出处
《北京科技大学学报》
EI
CAS
CSCD
北大核心
1997年第5期421-424,共4页
Journal of University of Science and Technology Beijing
关键词
流量
非接触式测量
热传递
电桥
flowrate, non-invasive measurement, heat transfer, bridge
