【摘要】 目前在电磁流量计的干标定研究中,为方便公式推导,通常将实际的圆电极简化为方电极模型.这种简化在电极尺寸较大时,会引入不必要的计算误差,影响流量计的标定精度.本文从圆电极模型出发,论述了其对应权重函数的计算过程.并针对大尺寸圆电极模型进行理想化计算,得到其点电极模型,并运用此模型进行了仿真研究.更多还原

【Abstract】 Currently in dry calibration study of electromagnetic flowmeter,the circular electrodes are usually simplified as square in order to facilitate the derivation.If the electrode has a larger size,this simplification will introduces unnecessary calculation error,and affect the accuracy of the calibration.This article starts from the circularelectrode model,and describes the calculation to itsweight function in detail.After the idealized calculation against the large size circularelectrode model,we get the point electrode model,and use this model to do some simulation study.更多还原