摘要
在电缆偏心电涡流检测中的无限区域电磁场中,设定一圆形虚拟边界将无限区域分裂为有限区域和无限区域,并在有限区域内运用有限元法（FEM）,在无限区域内运用边界元法（BEM）,在虚拟边界上场量采用直接耦合方法,进行了数值计算,并得出了电磁场的分布及其探头参数对线圈电感和电缆涡流损耗的影响.
Abstract: There is a circular and suppositional boundary which divide the infinite regions into finite and infinite regions in the electromagnetic fiel dat the eddy-current detection ofthe biased cable. FEM is used in the finite regions and BEM is used in the infinite regions. On the suppositional border field quantity are calculated by the direct coupled method. The distribution of electromagnetic field and how coils inductance and cables eddy - currentlosses are influenced by parameters are given.
出处
《哈尔滨理工大学学报》
CAS
2002年第5期36-39,共4页
Journal of Harbin University of Science and Technology
关键词
电缆偏心检测
数值模拟
参数
电磁场
有限元法
边界元法
the cable eccentricity
electromagnetic field
finite element method
boundary element method
