大学物理 ›› 2020, Vol. 39 ›› Issue (07): 10-15.doi: 10.16854 / j.cnki.1000- 0712.190262

• 教学讨论 • 上一篇    下一篇

矩形截面密绕环状弯曲螺线管的磁场研究

刘家明,张兴初   

  1. 广东第二师范学院物理与信息工程系,广东广州 510303
  • 收稿日期:2019-06-18 修回日期:2019-11-13 出版日期:2020-07-20 发布日期:2020-07-22
  • 作者简介:刘家明(1986—),男,广东阳江人,广东第二师范学院物理与信息工程系讲师,博士,主要从事金属表面等离激元、大学物理教学与研究工作.
  • 基金资助:
    广东省教育厅创新项目(2016KTSCX095)

The magnetic field of the ring-shaped tightly wound bent solenoid with the rectangular cross section

LIU Jia-ming,ZHANG Xing-chu   

  1. Department of Physics and Information Engineering,Guangdong University of Education,Guangzhou,Guangdong 510303,China
  • Received:2019-06-18 Revised:2019-11-13 Online:2020-07-20 Published:2020-07-22

摘要:

本文根据毕奥-萨伐尔定律,对矩形截面的通电密绕弯曲螺线管产生的磁场进行了理论推导,并得到了相应的解析

解. 然后利用Matlab 编程计算,展示了3 种典型环状螺线管的磁场分布特点,并对其中半环状结构的管内场分布特点做了深入讨论.

关键词: 螺线管, 磁场, 矩形截面, 环状, 弯曲

Abstract:

According to the Biot-Savart law,we derive the magnetic field of the current-carrying tightly wound

bent solenoid with the rectangular cross section,and obtain the analytic solution. Then,by using the Matlab software,the magnetic fields of three typical ring-shaped structures are shown,and the characters of the magnetic field in the semi ring-shaped structure are discussed in more details.

Key words: solenoid, magnetic field, rectangular cross section, ring-shaped, bent