Jiles–Atherton model prediction and compensation of the hysteresis inside magnetic shields
Xiangkai Peng,
Lin Li,
Wei Ren,
Jingwei Ji,
Jingfeng Xiang,
Jianbo Zhao,
Meifeng Ye,
Xin Zhao,
Bin Wang,
Qiuzhi Qu,
Tang Li,
Liang Liu,
Desheng Lü
Affiliations
Xiangkai Peng
Key Laboratory for Quantum Optics and Center of Cold Atom Physics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Science, Shanghai 201800, China
Lin Li
Key Laboratory for Quantum Optics and Center of Cold Atom Physics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Science, Shanghai 201800, China
Wei Ren
Key Laboratory for Quantum Optics and Center of Cold Atom Physics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Science, Shanghai 201800, China
Jingwei Ji
Key Laboratory for Quantum Optics and Center of Cold Atom Physics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Science, Shanghai 201800, China
Jingfeng Xiang
Key Laboratory for Quantum Optics and Center of Cold Atom Physics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Science, Shanghai 201800, China
Jianbo Zhao
Key Laboratory for Quantum Optics and Center of Cold Atom Physics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Science, Shanghai 201800, China
Meifeng Ye
Key Laboratory for Quantum Optics and Center of Cold Atom Physics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Science, Shanghai 201800, China
Xin Zhao
Key Laboratory for Quantum Optics and Center of Cold Atom Physics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Science, Shanghai 201800, China
Bin Wang
Key Laboratory for Quantum Optics and Center of Cold Atom Physics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Science, Shanghai 201800, China
Qiuzhi Qu
Key Laboratory for Quantum Optics and Center of Cold Atom Physics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Science, Shanghai 201800, China
Tang Li
Key Laboratory for Quantum Optics and Center of Cold Atom Physics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Science, Shanghai 201800, China
Liang Liu
Key Laboratory for Quantum Optics and Center of Cold Atom Physics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Science, Shanghai 201800, China
Desheng Lü
Key Laboratory for Quantum Optics and Center of Cold Atom Physics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Science, Shanghai 201800, China
In a varying low-frequency external magnetic field, such as that experienced by a satellite in low Earth orbit, the effect of hysteresis should be considered for any magnetic-field-sensitive device placed inside a magnetic shield. We divided the residual magnetic field inside the shielding into two parts: an attenuated magnetic field and a magnetization-induced magnetic field. To calculate the residual magnetic field accurately, we introduced the hysteresis Jiles–Atherton model to predict and calculate the magnetization-induced magnetic field. To mimic the varying magnetic field of low Earth orbits, we developed a quasi-Helmholtz coil by controlling the coil current and placed a magnetic-field-sensitive device—a cold atom clock—inside the coil. This clock was operating inside three layers of magnetic shielding. For the Jiles–Atherton model, we adjusted the current of the compensation coil in real time to maintain a stable magnetic field inside the shield. With this compensation strategy, the test result showed that the field variation is reduced from 14.8nT to 1.4nT. Compared with other strategies, this method provides a more accurate and more universal magnetic-field compensation scheme.
