单层稳恒电流斗篷  

Single-layer Steady Electric Current Cloak

作　　者：赵艳艳[1] 曾伦武[1] ZHAO Yanyan;ZENG Lunwu(College of Engineering, Nanjing Agricultural University, Nanjing 210031, China)

机构地区：[1]南京农业大学工学院

出　　处：《安庆师范大学学报（自然科学版）》2019年第2期70-74,共5页Journal of Anqing Normal University(Natural Science Edition)

基　　金：2018年中央高校基本科研业务费实验室设备专项课题项目(SYSB201816)

摘　　要：利用电导方程,推导了空心圆柱导体内外的电势。根据欧姆定律的微分形式,推导了电流密度和电势的关系。利用电场切线方向连续和电流密度法线方向连续的边界条件,得到了空心圆柱导体内外的电势和电流密度。计算和模拟结果表明:特殊尺寸的单层空心圆柱导体能够斗篷稳恒电流。Utilizing the conductivity equation, the electric potential inside and outside a hollow cylinder conductor is derived. According to the differential form of the ohm’s law, the relation between electric current density and electric potential is deduced. Utilizing the boundary conditions in which the electric field is continuous in the tangential direction and electric current density is continuous in the normal direction, the electric potential and electric current density inside and outside a hollow cylinder conductor is derived. Calculation results show that the single-layer hollow cylinder conductor can cloak steady electric current.

关 键 词：斗篷 电导方程 拉普拉斯方程 

分 类 号：O441.1[理学—电磁学]