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应用磁矢量势公式导出了螺线圈绕组的磁场计算公式，应用标量磁势并对电磁铁作局部均匀磁化近似，给出了电磁铁摇摆器磁场的积分方程式和相应的耦合系数。通过求解积分方程得到了摇摆器磁场的空间分布及摇摆器两端非均匀区的磁场分布。本方法可以为双向聚焦电磁铁摇摆器的设计提供参考数据
The formula of magnetic field of helical coil winding is deduced by using the formula of magnetic vector potential. The scalar magnetic potential and the local uniform magnetization approximation of the electromagnet are given. The integral equation and the corresponding coupling coefficient of the magnetic field of the electromagnet are given. By solving the integral equation, the spatial distribution of the magnetic field of the wobbler and the distribution of the magnetic field in the non-uniform area of the wobbler are obtained. The method can provide reference data for the design of bidirectional focusing electromagnet wobbler