运动潜艇的感应电场分布  

Induced electric field by moving magnetic submarine

作　　者：汪小娜[1] 肖昌汉[1] 王向军[1] 嵇斗[1] 

机构地区：[1]海军工程大学电气与信息工程学院,武汉430033

出　　处：《海军工程大学学报》2012年第4期7-10,71,共5页Journal of Naval University of Engineering

基　　金：国家自然科学基金资助项目(51007093);中国博士后科学基金资助项目(20080441290)

摘　　要：采用相对论电磁变换法计算了单个磁偶极子匀速运动时产生的感应电场三分量。利用沿圆柱表面排列的磁偶极子阵列近似模拟潜艇的磁场分布,通过对磁偶极子阵列运动感应电场三分量的积分运算,得到了潜艇运动感应电场的分布规律,解决了由高斯定理计算感应电场因电场方向不同难以进行积分运算的难题。利用海水中布放的传感器,实际测量了运动潜艇模型的感应电场,测量结果验证了所提出的感应电场计算方法的正确性。The three components of the induced electric field produced by an equable moving magnetic dipole were obtained by means of the electromagnetic transform on the theory of relativity. The mag- netic field of a submarine can be simulated by the magnetic dipoles arrayed along a column surface. Then, by the integral calculation of the electric field, the distribution characteristics of the electric field produced by a moving submarine were gained. The difficulty in integral calculation because of different directions of the electric field calculated by Gauss theorem is overcome. The method was proved to be correct by using the sensors laid underwater to measure the electric field of a moving sub- marine model.

关 键 词：感应电场 磁偶极子 相对论 电磁变换 潜艇 

分 类 号：O441[理学—电磁学]