The design approach and innovations for the largest, uniform field, superconducting solenoid magnet

Optimal Design of a New Rotating Magnetic Beacon Structure Based on Halbach Array

“…The error analysis of both is shown in Figure 22. To further verify the optimized structure, the magnetic field intensity on both sides of the array is collected to get the magnetic field intensity variation curve with measurement points: from P 13 (−8, −6, 0) to P 14 (8, −6, 0); from P 15 (−8, 6, 0) to P 16 (8,6,0). Meanwhile, the same measurement points are set in the mathematical model of the structure, so the comparative data plot of the mathematical modeling and simulation model can be obtained, as shown in Figure 21.…”

“…Low-frequency magnetic field signals [1][2][3][4][5] have excellent properties such as high penetration, strong robustness, and easy extraction, and are suitable for positioning applications with high accuracy requirements in complex scenes. In the past, low-frequency magnetic field signals have been generated by energized solenoids [6,7], but, with this method, the energy loss is large and the magnetic field strength is limited. With the progress of material technology [8][9][10][11], permanent magnets made of strongly magnetic materials can now generate low-frequency magnetic field signals with longer propagation distances after rotation.…”