Impact Factor:1.9

DOI number:10.1109/TMAG.2025.3605690

Affiliation of Author(s):仪器科学与光电工程学院

Teaching and Research Group:大科学装置研究院

Journal:IEEE Transactions on Magnetics

Key Words:magnetic shielding; Magnetic field measurement; Magnetic shielding; Magnetic fields; Mathematical models; Coils; Magnetic noise; Solid modeling; Computational modeling; Magnetization; active magnetic compensation; Bouc-Wen model; Magnetic hysteresis; nonlinearity; three-dimensional modeling

Abstract:In magnetoencephalography (MEG) and cold atom clocks systems, measurement of target signals requires a near-zero magnetic environment. To achieve this, it is critical to apply external magnetic field to minimize the internal field. However, external magnetic compensation remains challenging due to the nonlinear relationship between the external magnetic field and remnant magnetism. Precise and parsimonious modeling for this nonlinear characteristic is important to enhance the magnetic compensation performance. Currently, two methods are employed for modeling the nonlinear behavior: analytical

Co-author:Mengsu Zhao, Daiyong Chen, Haifeng Zhang

First Author:Jinji Sun

Indexed by:Journal paper

Discipline:工学

First-Level Discipline:Instrumentation Science and Technology

Document Type:J

Volume:61

Issue:11

Page Number:1-9

ISSN No.:0018-9464, 1941-0069

Translation or Not:no

Date of Publication:2025-11-01