电磁流量计矩形与鞍状线圈磁场的数值仿真

doi:10.3969/j.issn.1000-1158.2016.01.10

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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.

Key words： metrology electromagnetic flowmeter numerical simulation design of exciting coil distribution of the induced magnetic field

Received: 23 February 2014 Published: 10 December 2015

PACS:

TB937

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	Articles by authors
	DU Sheng-xue
	KONG Ling-fu
	LI Ying-wei

Cite this article:

DU Sheng-xue,KONG Ling-fu,LI Ying-wei. Numerical simulation of the magnetic field of rectangular and saddle coils in electromagnetic flowmeter[J]. Acta Metrologica Sinica, 2016, 37(1): 38-42.

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http://jlxb.china-csm.org:81/Jwk_jlxb/EN/10.3969/j.issn.1000-1158.2016.01.10 OR http://jlxb.china-csm.org:81/Jwk_jlxb/EN/Y2016/V37/I1/38

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