Aimed at the lack of magnetic dipole model, finite-element method (FEM) is applied to defect leak magnetic field analysis, and the distribution of ordinary defect MFL field is simulated.

• 针对磁偶极子模型的不足,将有限元法应用到缺陷漏磁场分析中,实现了常见管道样本缺陷的漏磁场仿真。