一种设计Helmholtz线圈的快速优化方法

A Fast Optimization Method for the Helmholtz Coil Design

本文讨论利用Helmholtz线圈结构产生匀强磁场时的线圈参数设计问题。该问题以不均压系数作为指标衡量一个区域磁场的均匀程度,旨在通过参数设计使目标区域磁场最均匀化。在解决这个实际应用背景下的多参数优化问题的过程中,本文通过线圈参数的预估、合理磁感应强度计算方法及优化算法的选取,大幅缩减求解过程中的计算量,提出了基于Matlab的一种更加高效快速的Helmholtz线圈设计方法。

In this paper, the design of the Helmhohz coil used to generate a uniform magnetic field is discussed. We assess a uniform magnetic field by its nonuniformity coefficient, aiming to obtain the most uniform magnetic field. To reduce computation load, the parameters of Helmhohz coil are estimated and reasonable methods for mag- netic flux density calculation and optimization are adopted when solving this multi-parameter optimization problem under the background of actual needs. Thus, a more effective and rapid method for Helmhohz coil design based on Matlab is proposed.