基于虚电流理论的电磁流量传感器权重函数分析方法研究

Research on the Analyzing Method of Weight Function for the Electromagnetic Flow Sensor Based on Virtual Current Theory

采用Bevir提出的虚电流理论对权重函数进行分析,并与Shereliff权重函数进行对比。根据虚电流分析的结果,用Ansoft Maxwell 3D电场求解器对安装不同电极的矩形测量管进行仿真分析,选择合理的电极结构。分析结果表明,虚电流分析方法比权重函数分析方法具有更好的应用价值,在电磁流量传感器结构分析优化中通过简单的方法得到理想的结果。

The weight function was analyzed by using virtual current proposed by Bevir, and compared to Shercliffs theory. The analyzed results were used to optimize electrode structures by means of Ansoft Maxwell 3D software which simulated virtual eurrents in rectangular tubes with different electrodes. It is demonstrated from the results that the virtual eurrent method is more effeetive than traditional weight function method to analyze electromagnetic flow sensors, and the desirable results can be easily acquired by this method.