非均匀带电圆环空间电势和电场分析  

The electric field distribution of non-uniform charged rings

作　　者：张宁宁[1] 耿森林[1] 李永[1] 

机构地区：[1]渭南师范学院物理与电气工程学院,陕西渭南714000

出　　处：《纺织高校基础科学学报》2013年第3期388-391,共4页Basic Sciences Journal of Textile Universities

基　　金：陕西省科技厅计划项目(2012JM1005)

摘　　要：带电细圆环是电磁学理论及应用中的基本模型,研究其产生的电场在空间的分布具有重要意义.利用电多极矩法计算非均匀带电圆环的电势和电场强度,并利用Matlab图形处理功能绘图,研究非均匀带电圆环在空间任一点的电势及电场分布,计算出轴线上的电势并与均匀带电圆环的电势进行比较.结果表明,利用Matlab获得的结果是可靠的,该结论对研究电磁场的分布提供了一种可行的方法,对研究与静电放电有关的电磁场的特性有一定的指导意义.Charged ring is the basic model of electromagnetic theory and application .It is important for study on the electric field distribution .Non-uniform charged ring of the electric potential and electric field intensity distri-bution is calculated by the electric multipole moment method and non-uniform charged ring in the space at any point of the electric potential distribution is studied by Matlab graphics drawing .Axis on the potential is calcu-lated and the electric potential of a charged conclusion is compared .The results indicate that the conclusion is obtained from Matlab is reliable .The conclusions provide a viable method to the research of electro-magnetic field distribution ,having a positive significance on ESD-related characteristics of electro-magnetic field .

关 键 词：非均匀 电场分布 电势 电多极矩 Matlab 

分 类 号：O442[理学—电磁学]