Design Simulation and Physical Verification of Rotating Magnetic Field Based on 3D Helmholtz Coil
Liu Siying;Lin Zijun;Lei Hao;Xuan Yang;Zhang Junhao;Xu Chudong;School of Electronic Engineering (School of Artificial Intelligence), South China Agricultural University;
Based on the uniform magnetic field distribution of one-dimensional Helmholtz coil, the uniform magnetic field distribution of two-dimensional and three-dimensional Helmholtz coil is obtained by means of the principle of magnetic field vector superposition. According to biot-Savart theorem, by controlling the current of three pairs of Helmholtz coils, a threedimensional uniformly rotating magnetic field is generated in any direction. Then, the 3d Helmholtz coil is modeled by using multiphysical field COMSOL finite element simulation software, and the uniform rotating magnetic field generated by it is simulated, and the corresponding simulation result data is obtained. Finally, the theoretical derivation and simulation results are verified by building a physical object.
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