细螺旋线圈的近场分析  

Near Field Analysis to Thin Spiral Coil

作　　者：白小营[1] 程明[1] 王俊山[1] 李惠[2] 

机构地区：[1]郑州大学信息工程学院,郑州450001 [2]焦作师范高等专科学校物理系,河南焦作454001

出　　处：《电测与仪表》2009年第S2期5-7,106,共4页Electrical Measurement & Instrumentation

摘　　要：为进一步了解细螺旋线圈在近场的磁场分布,本文首先分析了近场耦合的现状,研究了单螺旋线圈和多螺旋线圈的磁场分布,并在此基础上确定螺旋线圈中轴线上的磁场随线圈的半径先增加后减小;同时发现单螺旋线圈在中轴线上的最大磁场分布存在规律性,即中轴线上磁场在距离每增加0.005米,半径增加0.007米的情况下达到极值。文章结束部分用实验验证了此规律,与理论值符合良好。The paper analyses the approach existing condition of near field' coupling,in order to get further knowledge of its' distribution of magnetic field,at the same,studies single spiral coil and multi-coils' near field. The research discovered the axle wire magnetic field of one spiral coil strengthen first,then weaken with the radius'enlargement,its' magnetic field maximum follows this regular pattern:axle wire'magnetic field has a maximum when axlewire' distance increases 0.005m and coil' radius increases 0.007m.

关 键 词：近场耦合 磁场分布 影响因素 最大值 

分 类 号：TM41[电气工程—电器]