基于多种方法探究的亥姆霍兹和多线圈磁场分析  

Helmholtz and Multi-coil Magnetic Field Analysis Based on Multi-method Exploration

作　　者：方明月 郭瑞雪 谢翠婷[1] FANG Mingyue;GUO Ruixue;XIE Cuiting(School of Physical and Telecommunications Engineering,South China Normal University,Guangzhou 510006,China)

机构地区：[1]华南师范大学物理与电信工程学院,广东广州510006

出　　处：《大学物理实验》2021年第6期10-15,共6页Physical Experiment of College

摘　　要：在亥姆霍兹线圈磁场均匀性研究的基础上,通过理论、仿真以及实验(包括智能手机和特斯拉计两种方法)相结合的方法对3个平行共轴载流圆形线圈产生的磁场分布进行求解与测量,并对比分析了双线圈和三线圈的磁场均匀性。结果表明,在一定电流以及线圈间距下,共轴三线圈产生的磁场均匀距离以及强度大小均大于亥姆霍兹线圈。此外,智能手机测量磁场方法的引入,为实验室教学演示提供了一种更加简洁的思路。It is based on the research of magnetic field uniformity of Helmholtz coil,the magnetic field distribution generated by three parallel coaxial current-carrying circular coils was solved and measured by combining theory,simulation and experiment(including smart phone and Tesla meter).The magnetic field uniformity of double coil and triple coil is compared and analyzed.The results show that,under a certain current and coil spacing,the magnetic field generated by coaxial three coils is greater than that generated by Helmholtz coil.In addition,the introduction of smart phone measurement method provides a more concise idea for laboratory teaching demonstration.

关 键 词：亥姆霍兹线圈 共轴三线圈 磁场均匀性 仿真分析 智能手机传感器 

分 类 号：O441.3[理学—电磁学]