钢管管缝缺陷漏磁场模型及其应用

A Mathematical Model for the Magnetic Leakage Field due to Pipe Seam in a Steel Pipe

提出了基于模型的漏磁检测方法 ,对于钢管管缝缺陷漏磁场分布特征 ,采用许瓦兹 -克里斯多夫变换定理进行了理论推导 ,建立了相应的数学模型 ,并对其应用特点进行了分析。

The testing method of the magnetism leakage on model based testing is concerned.According to Schwarz-Christoffel transformation theorem,the relevant mathematical model is presented for the distribution of magnetic leakage field covering magnetic section of steel pipe seam.The distribution feature of testing model is discussed.