利用MATLAB模拟平行电流的梯度磁场  

Simulation on the gradient magnetic fields of parallel current using MATLAB software

作　　者：贝承训[1] 陈明东[1] 

机构地区：[1]华南理工大学大学城校区物理教学实验中心,广东广州510006

出　　处：《实验室科学》2015年第1期78-81,共4页Laboratory Science

摘　　要：基于长直导线的磁感应强度公式,讨论了同向平行电流激发的磁感应强度,利用MATLAB软件模拟计算了同向平行电流产生的磁感应强度分布,并画出了磁感应强度、磁感应强度梯度分布的图像。通过模拟计算得出了同向平行电流能在一定空间范围内激发均匀的横向梯度磁场等结论,该结论也可为磁场梯度设计提供参考。Based on the expression of magnetic induction intensity of a long straight currentcarrying wire,the distribution of magnetic induction intensity which is excited by parallel current is discussed,using MATLAB software to simulate and calculate the distribution of magnetic induction intensity which is excitationed by the same direction parallel current,and then we get the distribution pictures of magnetic induction intensity and the distribution pictures of magnetic induction intensity gradient. Through simulation and calculation research,we get the conclusions that uniform horizontal gradient magnetic field within a certain range is excited by the same direction parallel current,the conclusion can also guide the design of gradient magnetic fields.

关 键 词：平行电流 模拟计算 梯度磁场 

分 类 号：O441.2[理学—电磁学]