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| Simulation Research on Weight Function of Multi-electrode Electromagnetic Flowmeter |
| KONG Ling-fu,DU Sheng-xue,LI Ying-wei |
| College of Information Science and Engineering, Yanshan University, Qinhuangdao, Hebei 066004, China |
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Abstract Adopting the finite element method, when the electrodes are in different positions, the numerical simulations for weight function of electromagnetic flow meter with six electrodes are carried on. Then two indexes indicating the evenness of weight function have been put forward: the maximum deviation and the overall evenness, and the distributions of weight function while the number of electrodes are different and the electrodes are in different locations are analyzed based on these indexes. The results show that weight function distribution of electromagnetic flow meter is related not only with the number of electrodes but also with position of electrodes. By reasonable designing the position of electrodes, the electromagnetic flowmeter with six electrodes is superior to dual-electrode electromagnetic flowmeter in both of the uniformity and the average strength of weighting function distribution.
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2015, Vol. 36 
