一种圆环电流空间磁场数值计算方法  

A Numerical Calculation Method for Spatial Magnetic Field of Circular Current

作　　者：郭智勇[1] 刘得军[1] 

机构地区：[1]中国石油大学(北京)地球物理与信息工程学院,北京102249

出　　处：《科学技术与工程》2013年第29期8715-8720,共6页Science Technology and Engineering

基　　金：国家自然科学基金(41374151)资助

摘　　要：圆环电流是最基本的理论磁体单元,其周围空间任意点磁场解析计算推导过程复杂。借鉴"割圆法"原理,推导了一种圆环电流周围空间任意点磁感应强度数值计算方法,应用该数值计算方法进行了圆环电流中轴线、圆电流平面、圆电流平面平行面及垂直面上磁场特征数值分析,并通过对比圆环电流完全椭圆积分磁感应强度解析计算结果验证了数值计算方法的准确性。研究结果表明圆环电流空间磁感应强度数值计算方法推导过程简单,能够方便计算空间任意点磁感应强度且准确度高。The circular current is the most basic magnet unit in theory,and its mnagnetic field analytical calculation of arbitrary space point is difficult to deduce.A numerical calculation method for spatial magnetic field of circular current is deduced according to cyclotomy.Based on this numerical method,the magnetic field distribution traits of the circular-current＇ s axle,circular plane,parallel planes and vertical planes are analyzed.Also,the accuracy of this method is proved through comparing magnetic influx intensity calculated by the complete elliptic integral.Research results show that the calculation method,which is related to the circular-current＇ s magnetic flux density,is simple to derivation and easy to get highly accurate results.

关 键 词：圆环电流 磁感应强度 磁场分布 割圆法 数值计算 

分 类 号：O441.3[理学—电磁学]