中文摘要：

利用梯形积分法,获得了椭圆形电流激发的磁场,在整个三维空间中分布的新解析解.根据解析解分析了椭圆形电流中心及轴线上的磁场;找到了磁场三个分量之间的数量关系;形象地描述了磁场的大小和方向,在空间的分布;定量分析了椭圆电流轴向磁场的匀强区变化,得到了当两个椭圆线圈相距长短轴之积开方值放置时,可获得最大的匀强区范围.

英文摘要：

The trapezoidal integration method is employed to obtain a new analytical solution of distribu- tion of oval current-excited magnetic field in three-dimensional space. The magnetic field at the core and central axis of the oval current is analyzed according to the analytical solution, the numerical relationship of three components of the magnetic field to each other is found, the magnitude, direction and spatial dis- tribution of the magnetic field are described vividly, and the variation of iso-intensity zone of axial magnet- ic field of oval current is analyzed quantitatively, so that a conclusion is obtained that a maximal iso-intensity zone can be obtained when two oval solenoids are disposed from each other at a distance of the square root of the product of major and minor axes of the ellipse.