插入式电磁流量计的研究

Study on insertion electromagnetic flowmeter

研究提高插入式电磁流量计的准确度问题。通过改进流量计内部所插入线圈的物理结构与改进流量计的物理结构来提高测量精度。分别计算出传统流量计与改进后的流量计的磁通密度,并对流场进行数值耦合,获得电极两端的电动势,并与实验数值对比,误差分别为11.3%,4.25%,证明了所用方法的合理性。

Research on improving methods for accuracy of insertion electromagnetic flowmeter. By improving physical structure of coil and improving physical structure of flowmeter to improve measuring precision of flowmeter. Respectively calculate magnetic flux density of traditional flowmeter and improved flowmeter,and numerical coupling of flow field is carried out,electromotive force at the ends of electrodes is obtained,and compared with experimental value,errors are 11. 3 % and 4. 25 %,respectively,rationality of the method is proved.