椭圆电流焦点处磁场计算

Calculation of magnetic field at elliptical focus

根据毕奥-萨伐尔定律,分别使用极坐标系和直角坐标系下的椭圆方程,利用矢量分析的方法推导出椭圆形电流焦点的磁场表达式,并由此导出了圆电流圆心的磁场,为其它电流的磁场计算提供一种新的方法。

According to Blot- Savart Law, the magnetic field expression of elliptical focus is deduced by means of poplar coordinates,rectangular coordinates,and vector analysis. Aa a result,the magnetic filed of circular focus is calculated. Thus the other other magnetic field can also be calculated by using this method.