多功能8字线圈的优化设计与实验

Optimization design and experiment of multifunctional 8-shaped coil

摘要:

为了改善线圈磁聚焦性能，扩大线圈功能应用，改进8字线圈，通过混合优化算法优化线圈主要可变参数，得出不同尺寸的8字线圈。建立线圈仿真模型，优化仿真分析8字线圈的聚焦性与功能效果。制作与仿真模型一致的实验模型，使用长为1 m、宽为1 m、厚度为5 mm的均匀钢板与一根实心导管来测试验证仿真结果。通过对比函数证明了理论仿真的有效性。改进后不同尺寸的8字形线圈模型可以实现多功能运用，在一定的聚焦性下，该线圈可以灵活运用到亥姆赫兹线圈、经颅磁刺激线圈阵列的模型以及功能磁刺激线圈阵列中。

Abstract:

In order to improve the magnetic focusing performance of coil and expand the application of coil function, the 8-shaped coil is improved. And the main variable parameters of the coil are optimized through a hybrid optimization algorithm. And 8-shaped coils with different sizes are obtained. The coil simulation model is established, and the focusing and functional effects of the optimized 8-shaped coil are analyzed through optimization simulation. An experimental model consistent to the simulation model is built, and the simulation results are verified by using a uniform steel plate with 1 m of length,1 m of width, and 5 mm of thickness and a solid conduit. The effectiveness of theoretical simulation is proved through comparison function. The improved 8-shaped coil model with different sizes can realize multi-function application. Under certain focusing, the coil can be flexibly applied to Helmholtz coil, Transcranial Magnetic Stimulation(TMS) coil array model and Functional Magnetic Stimulation(FMS) coil array.