含有一个气泡时电磁流量计虚电流的三维特性  

3D Characteristics of the Virtual Current in an Electromagnetic Flow Meter with One Bubble

作　　者：张小章[1] 李砚涛[1] 何涛[1] 

机构地区：[1]清华大学工程物理系,北京100084

出　　处：《计量学报》2002年第3期195-198,共4页Acta Metrologica Sinica

摘　　要：从流动的电磁测量理论出发 ,用交替迭代的方法求解三维条件下复杂域的Laplace方程 ,得到含有一个气泡时电磁流量计权函数中虚电流势的分布 。Based on the theory of electromagnetic induction flow measurement, the Laplace equation in complicated three dimensional domain is solved by using alternating method. Virtual current potential distribution is obtained for an electromagnetic flow meter with one spherical bubble inside. The result can be used to investigate the effect of the bubble size and the bubble position on the virtual current distribution and the resulted measurement error.

关 键 词：气泡 电磁流量计 多相流 三维模型 流量测量 虚电流势 

分 类 号：TB937[一般工业技术—计量学] TH814.93[机械工程—测试计量技术及仪器]