3D Simulation on Influence of Insulating Contents to Contactless Electromagnetic Induction Flowmeter
A contactless electromagnetic induction flowmeter is usually used to measure the velocity of high electric conductivity liquid flow. The principle is based on the fact that the fluid disturbs not only the amplitude but also the phase distribution of an applied AC magnetic field. In this paper, the influence of insulating contents in the high electric conductivity liquid flow on the sensitivity of phase difference of the flowmeter is studied through 3D simulation. In simulation, the high electric conductivity liquid and insulating contents were approximated by copper and gas bubbles, respectively. The results show that the phase difference sensitivity of the flowmeter to the flow with bubbles is different from that to single phase copper liquid flow. Furthermore, the sensitivity is insensitive to the distribution of bubbles in case of random distribution. However, increasing size or number of bubbles slightly decreases the sensitivity.
Electromagnetic flowmeter high electric conductivity flow phase distribution sensitivity
Chang Liu Shuo Yang Zhang Cao Gang Wang
School of Instrument Science and Opto-Electronic Engineering, Beihang University, Beijing 100191, Ch Sichuan Instrument Co. LTD, Flow meter Branch, SIC Industrial Park, Huangshan Avenue, New Northern Z
国际会议
The 7th International Symposium on Measurement Techniques for Multiphase Flows(第七届国际多相流测试技术会议)
天津
英文
251-257
2011-09-17（万方平台首次上网日期，不代表论文的发表时间）