在磁元件(如两极磁铁、四极磁铁)有效空间中的场成形精度直接关系到仪器、设备的性能指标。目前,场成形计算一般采用计算机辅助设计(CAD)方法,它要求由人工确定出修正场成形偏差所需垫补的垫片位置、形状等参量,就是说磁元件极面的基本形状的选定是由人的大脑而不是由机器来完成的,因此设计质量在很大程度上依赖于 Field-forming accuracy in the effective space of magnetic components (such as bipolar magnets, quadrupole magnets) is directly related to the performance of equipment, equipment. At present, the calculation of field forming generally adopts computer aided design (CAD) method. It requires to manually determine the position, shape and other parameters of the pad needed to correct the field forming deviation, that is to say, the basic shape of the polar face of the magnetic element is selected Is done by the human brain rather than by the machine, so the quality of the design is heavily dependent on