摘要
基于电磁场理论,利用理论推导和MATLAB仿真模拟相结合的方法对带电粒子在不同电磁场中的运动规律进行了系统化探究。结果表明:运动电荷产生的磁感应强度的分布与空间位置有关;狭义相对论下带电粒子在磁场中作圆周运动的半径和周期都随粒子运动速度的增加而增加;作匀速直线运动的电荷在圆面上产生的电位移通量呈对称分布,位移电流和磁感应强度的变化规律相同且与空间位置有关;振荡电偶极子产生的电势在电偶极子中垂线上处处为零,在中垂面两侧呈对称分布,电场强度分量在传播中形成以中垂面对称的等值线分布,等值线附近磁感应强度都具有一致的方向。可为微观粒子在电磁场中的输运规律相关研究提供参考。
Based on electromagnetic field theory,the physical laws of charged particles in different electromagnetic fields are systematically studied with both theoretical derivation and MATLAB simulation.The results show that the distribution of the magnetic induction intensity generated by the motion charge is related to the spatial position,In special relativity,the radius and cycle of a charged particle in a magnetic field increase with the particle velocity.The electric displacement flux on the round surface generated by the charge for constant linear motion is symmetrically distributed,the changes of the displacement current and the magnetic induction intensity are the same and related to the spatial position.The electric potential generated by the oscillating electric dipole is zero everywhere on the vertical line in the electric dipole,and is symmetrically distributed on both sides of the middle vertical surface,the electric field strength component forms a contour distribution in the propagation,and the magnetic induction intensity near the contour has the same direction,it can provide reference for the transport law of microscopic particles in electromagnetic field.
作者
毛生红
郑小平
MAO Shenghong;ZHENG Xiaoping(Department of Basic Courses,Lanzhou Institute of Technology,Lanzhou 730050,China)
出处
《兰州工业学院学报》
2022年第5期19-24,共6页
Journal of Lanzhou Institute of Technology
基金
兰州工业学院青年科技创新项目(18K-016)
甘肃省高等学校创新基金项目(2021A-162)
兰州市科技计划项目(2019-1-46)。
关键词
带电粒子
电磁场
可视化
charged particles
electromagnetic fields
visualize
