摘要
本文讨论了典型静电场问题的场图绘制方法,对二维场使用复位函数,其实部与虚部的等值线分别表示等位线和电场线。对于由一组共线的点电荷产生的电场,笔者利用电场线起始角方便地控制电场线的空间分布。本文所述的方法能精确绘制几乎所有常见的典型静电场场图,算法用Matlab实现非常方便。
This paper investigates the field imaging of typical electrostatic problems. For 2D situations, the com- plex potential function is applied. The contour lines of the real part and imaginary part represent the equipotential lines and field lines, respectively. For the electric field resulted from collinear point charges, the initial angle is used to determine the field line distribution. The method presented here is capable of giving nearly all of typical e- lectrostatic field images.
出处
《电气电子教学学报》
2012年第6期102-106,共5页
Journal of Electrical and Electronic Education
关键词
电磁场
场图
复位函数
点电荷
electromagnetic field
field image
complex potential
point charge
