关于磁荷面密度σs和磁荷线密度σl之比α
On the Proportional Coefficient α of Areal Density of Magnetic Charges σs to Linear Density of Magnetic Charges σl
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Forster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。
磁荷
面密度
线密度
漏磁场
Proportional coefficient
Magnetic charges
Areal density
Linear density
Abstract
This paper explains briefly the introduction of the proportional coefficientα=σs /σl (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, σl 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. Forsters experiment in 1985 was expounded quantitatively for the first time.
中图分类号 TG115.28
所属栏目 科研成果与学术交流
基金项目 国家自然科学基金资助项目（50371045后续)
收稿日期 2007/6/22
修改稿日期
网络出版日期
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备注仲维畅(1937-), 男, 高级工程师, 主要从事声振动和磁性无损检测及理论研究。
引用该论文: ZHONG Wei-Chang. On the Proportional Coefficient α of Areal Density of Magnetic Charges σs to Linear Density of Magnetic Charges σl[J]. Nondestructive Testing, 2009, 31(3): 186～187
仲维畅. 关于磁荷面密度σs和磁荷线密度σl之比α[J]. 无损检测, 2009, 31(3): 186～187
被引情况:
【1】仲维畅, "磁偶极子理论在无损检测中的用途",无损检测 32, 49-52(2010)
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参考文献
【1】仲维畅.铁磁性工件纵向磁化时端面上的磁荷分布——磁粉探伤原理之三十五[A].第九届全国表面(MT&PT)探伤技术年会论文集[C].西安: 2005.
【2】赵凯华, 陈熙谋.电磁学[M].北京: 高等教育出版社,1978.
【3】F. Forster. On the way from the “know－how” to the way “know－why” in the magnetic leakage field method of nondestructive testing[J]. Materials Evaluation,1985,42(9): 1156-1162;42(10): 1399-1404.
【4】F. Forster.漏磁无损检测从“知其然”到“知其所以然”[J].谢 昂,译.无损检测,1987,9(11): 318-323;9(12): 347-350.
【5】F. Forster.漏磁无损检测从“知其然”到“知其所以然”[J].谢 昂,译.无损检测,1987,9(11): 318-323;9(12): 347-350.
【6】仲维畅.工件表面矩形沟槽引起的漏磁场[J].无损检测,2004,26(7): 339-341.
【7】Wei-Chang Zhong. Magnetic leakage field caused by a rectangular slot on the workpiece surface[A]. Proceedings of 16th World Conference on Nondestructive Testing[C/CD]. Montreal, Canada. August 30－September 3,2004.
【8】仲维畅.工件表面矩形沟槽所生漏磁场的第二类空间分布曲线族——磁粉探伤原理之三十七[A].第九届全国表面(MT&PT)探伤技术年会论文集[C].西安: 2005,10,14-17: 137-139.
【2】赵凯华, 陈熙谋.电磁学[M].北京: 高等教育出版社,1978.
【3】F. Forster. On the way from the “know－how” to the way “know－why” in the magnetic leakage field method of nondestructive testing[J]. Materials Evaluation,1985,42(9): 1156-1162;42(10): 1399-1404.
【4】F. Forster.漏磁无损检测从“知其然”到“知其所以然”[J].谢 昂,译.无损检测,1987,9(11): 318-323;9(12): 347-350.
【5】F. Forster.漏磁无损检测从“知其然”到“知其所以然”[J].谢 昂,译.无损检测,1987,9(11): 318-323;9(12): 347-350.
【6】仲维畅.工件表面矩形沟槽引起的漏磁场[J].无损检测,2004,26(7): 339-341.
【7】Wei-Chang Zhong. Magnetic leakage field caused by a rectangular slot on the workpiece surface[A]. Proceedings of 16th World Conference on Nondestructive Testing[C/CD]. Montreal, Canada. August 30－September 3,2004.
【8】仲维畅.工件表面矩形沟槽所生漏磁场的第二类空间分布曲线族——磁粉探伤原理之三十七[A].第九届全国表面(MT&PT)探伤技术年会论文集[C].西安: 2005,10,14-17: 137-139.
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