磁矢势,magnetic vector potential
1)magnetic vector potential磁矢势
1.The results about the magnetic vector potential of current-carrying ring and the electric potential of uniform charged ring which are expressed by Bessel functions are further calculated and analyzed.用Bessel函数积分对圆环电流磁矢势及均匀带电圆环电势作进一步的计算分析,引申出磁感应强度及电场强度新的级数表达式,分析讨论了所得结果。
2.The magnetic induction intensity distribution B is obtained by solving its magnetic vector potential A distribution of current-carrying circular circuit in anisotropic medium.提出一种求解各向异性磁介质中电流磁场的新方法,通过求解各向异性磁介质中圆电流环的磁矢势A分布,求出其磁感应强度B分布。
3.This article uses magnetic vector potential and magnetic dipole to prove circular electricity M_(12)=M_(21).关于两个回路L1和L2的互感系数只有一个,即M12=M21,理论证明方法除普通物理电磁学教材中的证明方法外,还有另两种证明方法,即运用磁矢势和磁偶极子来证明互感系数M12=M21。
英文短句/例句

1.Boundary conditions for magnetic vector potential and infinity in physics磁矢势的边值关系和物理中的无穷大
2.Derivation process of relationship between magnetic motive force space vector and current space vector in induction motors感应电机中磁动势空间矢量与电流空间矢量关系式的推导
3.Vector Control Based on the Permanent Magnetic EMF Observer for the Permanent Magnet Synchronous Motor基于永磁反电势观测器的永磁同步电机矢量控制
4.Analysis of Compatibility between the Principle of Charge Conservation and Vector Potential A and Scalar Potential in the Electromagnetic Field of Homogeneous Media;电荷守恒原理与均匀介质中电磁场矢势A和标势φ的相容性分析
5.Study on AC-Excited Generator Stator Flux Orientation Vector Control交流励磁发电机定子磁场定向的矢量控制研究
6.Vector Control System of PMSM Based on dsPIC;基于dsPIC的永磁同步电机矢量控制系统
7.Research on Vector Control Servo System for Permanent Magnet Synchronous Motor;永磁同步电机矢量控制伺服系统研究
8.Research on Vector Control System of Permanent-Magnet Synchronous Motor永磁同步电动机矢量控制系统的研究
9.Design of Vector Control for AC Permanent Magnet Synchronous Motor Servo System交流永磁同步伺服系统矢量控制设计
10.Simulation Analysis in SVPWM Vector Control for Permanent Magnet Synchronous MachineSVPWM矢量控制永磁同步电动机仿真分析
11.Simulation of Field Orientation Frequency Converter of Induction Motor转子磁链定向矢量控制系统仿真研究
12.Simulation of PMSM Vector Control System Based on MATLAB/SIMULINKMATLAB/SIMULINK永磁同步电机矢量控制系统仿真
13.Two Potential Duality Theory of Maxwell Equation under Three Metrics;三种度规下Maxwell方程的双矢势对偶理论
14.A Vector Excitation Control System of a Novel Hybrid Excitation Permanent Magnet Synchronous Generator一种新型混合励磁永磁同步发电机的矢量励磁控制系统
15.Vector Control of Linear PM Brushless DC Motor Considering Effects of PM Flux Linkage Harmonics考虑永磁磁链谐波影响的直线永磁无刷直流电机矢量控制方法
16.The Magnetic Potential Computing of Working Gap in Inductor of Magneto-Abrasive Maching;磁力研磨磁感应器工作间隙磁势计算
17.THE RELATIVASTIC TRANSFORMATION OF ENERGYFLOW DENSITY VECTOR AND ENERGY DENSITYOF ELECTROMAGNETIC FIELD电磁场能流密度矢量与能量密度的相对论变换
18.Impact of Voltage Space Vector on Torque in DTC直接转矩控制中电压矢量对电磁转矩的影响
相关短句/例句

vector magnetic potential磁矢势
1.Calculation and discussion of the vector magnetic potential of a system consisting a line electric current and an infinite long magnetic dielectric column;线电流与无限长磁介质圆柱系统的磁矢势的计算及讨论
3)electro-magnet vector-potential A电磁矢势A
4)electromagnetic vector potentia电磁矢势
5)magnetic vector potential磁矢位,磁矢势
6)non-divergence magnetic vector potential无散磁矢势
延伸阅读

磁矢势  描述磁场的物理量,是矢量。磁场是有旋度无散度场,磁感应线总是闭合的,可表述为磁感应强度的散度恒为零,即墷·B=0 (1)  根据矢量分析理论,可引入矢量A,B=墷×A, (2)  则式(1)恒能满足。A即描述磁场的磁矢势。由于任意函数ψ的梯度的旋度恒为零,墷×墷ψ呏0, 因此在矢势A上加上任意函数ψ的梯度,有墷×(A+墷ψ)=墷×A,  这表明A+墷ψ与A描述同一磁场B,或者说描述磁场B的矢势具有任意性。为了确定矢量场,须给定它的散度和旋度,因此对于矢势A还可以加上一定的限制条件。在电流稳恒的条件下,常采用库仑规范墷·A=0作为限制条件,使计算简化。当磁介质为均匀线性介质时,B=μH,在库仑规范下,磁矢势满足墷2A=-μJ, (3)  式中J)为电流密度。方程(3)在无界空间的特解是 (4)  式中r是观察点的矢径r┡是电流分布点的矢径,r是观察点到电流分布点的距离。有了A,根据式(2)则可求得一定电流分布的磁场分布。在非稳恒的一般情形,矢势A和标势嗞共同描述电磁场(见电磁势)。    磁矢势具有明确的物理意义:磁矢势沿任意闭合曲线的环量代表穿过以该曲线为周界的任一曲面的磁通量,;磁矢势对时间导数的负值等于感应电场,;电流分布的总能量W可通过下式的体积分表示。    J.C.麦克斯韦在建立电磁场理论(1864)时,认为矢势是描述电磁场的基本量,后来H.R.赫兹和O.亥维赛等人则认为E和B是电磁场的基本量,而A和嗞是辅助量,即沿袭至今的经典电动力学的观点。赫兹和亥维赛等人的观点是积极的,他们在这种观点的指导下,将麦克斯韦当初的电磁场方程组改写成如今对称形式的麦克斯韦方程组。然而在近代,麦克斯韦的观点重新受到重视,它孕育着新的内容,这就是规范场。