A novel 3D magnetic field generator with larger uniform region

Due to low space utilization rate of traditional magnetic field generator, a novel 3D magnetic field generator with larger uniform region is proposed in this paper. In each dimension, a pair of auxiliary coil is introduced. To design this novel field generator, five model variables needs to be determined by computer optimization algorithm. Finally, a field generator was built to validate the design method, and the tested field result fits the desired one very well, maximum error is only 0.12%.