Numerical simulation of the magnetic field of rectangular and saddle coils in electromagnetic flowmeter
DU Sheng-xue1,2,KONG Ling-fu1,2,LI Ying-wei1,2
1.School of Information Science and Engineering, Yanshan University, Qinhuangdao, Hebei 066004, China
2.The Key Lab for Computer Virtual Tech and System Integration of Hebei Province, Qinhuangdao, Hebei 066004, China
Abstract：The distribution of magnetic fields generated by the rectangle and saddle exciting coils that are used for electromagnetic flowmeter is discussed. Using Biot-Savart law and superposition principle, the distribution of magnetic field on the cross section containing electrodes inside the measuring tube is obtained by numerical simulation. Two indicators direction parallel degree and uniform degree of magnetic field intensity was proposed to represent the magnetic field distribution uniformity. Analysis and optimization for the magnetic field generated by different sizes of rectangular and saddle exciting coils are separately done based on above two indexes, and further comparative analysis to the magnetic field generated by the two kinds of shape coils has been made.
杜胜雪,孔令富,李英伟. 电磁流量计矩形与鞍状线圈磁场的数值仿真[J]. 计量学报, 2016, 37(1): 38-42.
DU Sheng-xue,KONG Ling-fu,LI Ying-wei. Numerical simulation of the magnetic field of rectangular and saddle coils in electromagnetic flowmeter. Acta Metrologica Sinica, 2016, 37(1): 38-42.
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2016, Vol. 37 
