引言在偏转线圈中,磁场以及轨迹的计算机模拟已成为设计新型彩色显象管系统的重要方法。虽然三阶象差理论有助于决定近轴磁场形状。但是,要设计一组实用的在大偏转角情况下也能很好工作的线圈绕组是很困难的。因此,在有磁芯的情况下,电流源可以直接模拟偏转磁场。早期的偏转磁场模拟程序使用了有限差分网格法。它是在网格内放入磁芯和线圈或 Introduction Computer simulation of magnetic fields and traces in deflection coils has become an important method of designing new color picture tube systems. Although the third-order aberration theory helps determine the paraxial magnetic field shape. However, it is difficult to design a practical set of coil windings that work well even with large deflection angles. Therefore, in the case of a magnetic core, the current source can directly simulate the deflection magnetic field. Early deflection magnetic field simulation program using finite difference mesh method. It is placed inside the grid and the coil or coil inside