均匀梯度磁场的研究  

A Study of Magnetic Field with Uniform Gradient

作　　者：曾晓英[1] 杨昶[1] 邱明[1] 杨昌虎[1] 刘丽萍[1] 

机构地区：[1]长沙理工大学物理与电子科学系,湖南长沙410076

出　　处：《长沙电力学院学报（自然科学版）》2005年第2期83-85,共3页JOurnal of Changsha University of electric Power:Natural Science

摘　　要：从分析单个圆线圈磁场特点出发,探讨利用圆线圈产生均匀梯度磁场的原理和方法,给出一种圆线圈装置的设计,并对磁场梯度均匀性进行数值估计.数值计算表明这种设计得到的磁场梯度均匀性相对误差高于位置偏移的二次方以上.In ordor to produce a magnetic field with uniform gradient,the authors analyzed the features of magnetic field generated by a circular coil and explored the principle and method to generate a magnetic field with uniform gradient. The design of a device consisting of current-carrying circular coils is given and its uniformity of the gradient of axial magnetic field numerically estimated. The numerical calculation shows that the uniformity of gradient of the magnetic field obtained by the design is higher than the second power of position displacement around the center.

关 键 词：梯度 圆线圈 磁场 

分 类 号：O441[理学—电磁学]