Impact Factor:7.0

DOI number:10.1109/TIM.2025.3619282

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 Instrumentation and Measurement

Key Words:Magnetic field measurement; Magnetic shielding; Magnetometers; Magnetic fields; Coils; Transfer functions; Biomagnetic measurement; Delay effects; Delays; magnetic field equalization; magnetic shielding room (MSR); multisensor feedback; Noise measurement; sensor time-delay compensation; SQUIDs

Abstract:The active magnetic compensation (AMC) is essential for maintaining a stable near-zero magnetic environment and improving the signal-to-noise ratio of magnetoencephalography (MEG) measurements based on optically pumped magnetometers (OPMs). However, reducing the overall magnetic field noise level within the uniform area in MEG measurements remains a challenging issue for low-cost miniaturized magnetic shielding rooms (MSRs). This work proposes a spatial magnetic field equalization (SMFE) method based on the multisensor feedback that addresses two key challenges in spatial magnetic field compen

Co-author:Haoan Wang, Ximing Liu, Haifeng Zhang, Haitao Li, Zenghui Wang, Ge Tian

First Author:Jinji Sun

Indexed by:Journal paper

Discipline:工学

First-Level Discipline:Instrumentation Science and Technology

Document Type:J

Volume:74

Page Number:1-10

ISSN No.:0018-9456, 1557-9662

Translation or Not:no

Date of Publication:2025-01-01