关于磁荷面密度σ_s和磁荷线密度σ_1之比α  

On the Proportional Coefficient α of Areal Density of Magnetic Charges σ_s to Linear Density of Magnetic Charges σ_l

作　　者：仲维畅[1] 

机构地区：[1]南京燃气轮机研究所,南京210037

出　　处：《无损检测》2009年第3期186-187,共2页Nondestructive Testing

基　　金：国家自然科学基金资助项目(50371045后续)

摘　　要：简介了引入比例系数α=σs/σl(σs为磁化稳定状态下工件端面上或沟槽侧壁上的磁荷面密度,σl为沿工件底棱线上或沿沟槽棱线上的磁荷线密度)的目的,并给出了其量纲和单位。使用这一新概念的效果乃是首次定量阐明了Frster博士于1985年实验所得工件表面矩形沟槽产生漏磁场的空间分布曲线。This paper explains briefly the introduction of the proportional coefficienta=σs/σ1 （σs is areal density of magnetic charges on the bottom surface of a workpiece or on the lateral walls of a slot in the stable condition of magnetization, σ1 is linear density .of magnetic charges along the base apex lines of a workpiece or along the slot edges）. And its dimension as well as unit are also given. The effect using this new concept was that the spacial distribution curves of magnetic leakage field yielded by a rectangular slot on the workpiece surface obtained by Dr. F. Forster＇s experiment in 1985 was expounded quantitatively for the first time.

关 键 词：比例系数 磁荷 面密度 线密度 漏磁场 

分 类 号：TG115.28[金属学及工艺—物理冶金]