Nested Magnetic Field Compensation with Regulated Coefficients for Bio-magnetic Field Measurement

doi:10.1109/TIM.2023.3244249

	Nested Magnetic Field Compensation with Regulated Coefficients for Bio-magnetic Field Measurement
	Yutong Wei; Longsheng Cheng; Yaqiong Niu; Sitong Chen; Chaofeng Ye
	2023-02
发表期刊	IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT (IF:5.6[JCR-2023],5.6[5-Year])
ISSN	1557-9662
EISSN	1557-9662
卷号	72
发表状态	已发表
DOI	10.1109/TIM.2023.3244249
摘要	For a spin-exchange relaxation free (SERF) optically pumped magnetometer (OPM) that obtains its best performance in a zero magnetic field, an operation environment with approximately zero magnetic field is desired. This article proposes a nested magnetic field compensation system for a magnetic shielding room (MSR) to suppress the magnetic field. Two sets of coils, one set located outside of the MSR and the other one placed inside of the MSR, are combined in the system. The magnetic fields outside of the MSR are measured by tunneling magnetoresistance (TMR) sensors, while the fields inside the MSR are monitored by SERF OPMs. The two kinds of sensors complement each other in terms of measurement range and sensitivity. A nested two-stage proportional-integral (PI) closed loop control strategy is employed to compensate for the magnetic field inside the MSR. The control parameters are regulated by the magnitude of the magnetic field to take advantage of the two kinds of sensors. The effect of the proposed system is experimentally tested. The three-axis field fluctuations are reduced by 97.52%, 98%, and 98.64% by the proposed method, respectively. The proposed method is compared with a conventional two-stage series PI control system. The x-axis magnetic field fluctuations of the conventional PI control system and the proposed system are 75.81 and 11.71 pT, respectively. The magnetic fluctuation of the proposed system is about 15.5% of the fluctuation of the conventional PI system. To validate the feasibility of the proposed magnetic field compensation system for ultra-weak biomagnetic field measurement, magnetocardiography (MCG) and magnetoencephalography (MEG) signals are measured.
关键词	Magnetic fields Magnetic sensors Magnetic shielding Magnetic field measurement Magnetic noise Coils Magnetometers Bio-magnetic field measurement close-loop control magnetic field compensation optically pumped magnetometer (OPM) tunnel magnetoresistance sensor
URL	查看原文
收录类别	SCI ; EI ; SCOPUS
语种	英语
资助项目	Shanghai 2020 "Science and Technology Innovation Action Plan" Scientific Instrument Field Project[20142200200]
WOS研究方向	Engineering ; Instruments & Instrumentation
WOS类目	Engineering, Electrical & Electronic ; Instruments & Instrumentation
WOS记录号	WOS:000945294200001
出版者	IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
EI入藏号	20231013676713
EI主题词	Magnetometers
EI分类号	461.1 Biomedical Engineering ; 461.6 Medicine and Pharmacology ; 481.3.2 Earth Magnetism and Terrestrial Electricity ; 701.2 Magnetism: Basic Concepts and Phenomena ; 731.1 Control Systems ; 746 Imaging Techniques ; 942.3 Magnetic Instruments ; 942.4 Magnetic Variables Measurements
原始文献类型	Journal article (JA)
来源库	IEEE
引用统计	正在获取...
文献类型	期刊论文
条目标识符	https://kms.shanghaitech.edu.cn/handle/2MSLDSTB/282129
专题	信息科学与技术学院信息科学与技术学院_PI研究组_叶朝锋组信息科学与技术学院_硕士生信息科学与技术学院_博士生
作者单位	School of Information Science and Technology, ShanghaiTech University, Shanghai, China
第一作者单位	信息科学与技术学院
第一作者的第一单位	信息科学与技术学院
推荐引用方式 GB/T 7714	Yutong Wei,Longsheng Cheng,Yaqiong Niu,et al. Nested Magnetic Field Compensation with Regulated Coefficients for Bio-magnetic Field Measurement[J]. IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT,2023,72.
APA	Yutong Wei,Longsheng Cheng,Yaqiong Niu,Sitong Chen,&Chaofeng Ye.(2023).Nested Magnetic Field Compensation with Regulated Coefficients for Bio-magnetic Field Measurement.IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT,72.
MLA	Yutong Wei,et al."Nested Magnetic Field Compensation with Regulated Coefficients for Bio-magnetic Field Measurement".IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT 72(2023).