摘要
讨论缺陷引起的附加磁场和外磁化场对铁磁材料的磁化作用 ,引入有效磁导率和平均磁导率来描述铁磁材料不同区域的磁化状态 ,建立铁磁材料中的磁化状态及磁偶极子模型中的磁荷密度与外磁化场强度。
The magnetizing action of auxiliary magnetic field caused by flaws and applied magnetic field was discussed. The effective permeability and the average permeability were introduced to describe the magnetization state of different regions in a ferromagnetic material. The relationship of magnetization in ferromagnetic material and magnetic charge density in magnetic dipole model with applied magnetic field, the intrinsic magnetic property of ferromagnetic material, the geometrical dimensions of magnetic circuit and flaw in ferromagnetic material were set up.
出处
《无损检测》
2001年第4期139-143,共5页
Nondestructive Testing
关键词
电磁检验
漏磁
磁化状态
磁性材料
磁导率
漏磁通检测
Electromagnetic testing
Magnetic flux leakage
Magnetization state
Magnetic material
Permeability
