高压电缆铝护套焊缝缺陷ACFM检测方法及检测系统的研究

陈涛,董袁航,张赛,吕程,张立红,廖春晖

Research on ACFM detection method and detection system for weld defects of aluminum sheath of high voltage cable

Tao CHEN,Yuan-hang DONG,Sai ZHANG,Cheng LÜ,Li-hong ZHANG,Chun-hui LIAO

表1 铝护套焊缝缺陷ACFM仿真模型的材料参数

Table 1 Material parameters of ACFM simulation model of weld defects of aluminum sheath

材料 电导率/(S/m) 相对磁导率 相对介电常数 空气 1 1 1 铝 3.03×107 1 1 铜(线圈) 6×107 1 1 铁氧体(磁芯) 0 1 000 1