Elimination of the AC modulation mutual interference for array optically pumped magnetometers

doi:10.1177/13835416251324389

	Elimination of the AC modulation mutual interference for array optically pumped magnetometers
	Cheng, Longsheng; Chen, Sitong; Niu, Yaqiong; Zou, Zhicheng; Ye, Chaofeng
	2025-04-01
发表期刊	INTERNATIONAL JOURNAL OF APPLIED ELECTROMAGNETICS AND MECHANICS (IF:1.1[JCR-2023],0.7[5-Year])
ISSN	1383-5416
EISSN	1875-8800
发表状态	已发表
DOI	10.1177/13835416251324389
摘要	The optically pumped magnetometer (OPM) is one of the most sensitive magnetic field sensors, which is widely used for ultra-weak magnetic field measurement. To localize and quantify the magnetic source, array OPMs are needed to work simultaneously in a small area. As an OPM typically employs a modulation magnetic field, in the presence of multiple sensors, the modulation fields of the OPMs interference with each other, resulting in reduced measurement accuracy and sensitivity. This paper proposes a novel array OPMs setting to eliminate the mutual interference of the modulation magnetic field. The OPMs in the array are modulated simultaneously by a group of coils, which are optimized based on the numerical calculation to generate an almost uniform magnetic field in the sensor areas. The operating principle of the method is analyzed by solving the Bloch equation. Then, the feasibility of the method is demonstrated experimentally with compact OPMs that measure the magnetocardiography signal of human body.
关键词	optically pumped magnetometer modulation magnetic field mutual interference magnetocardiography measurement
URL	查看原文
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[52277014]
WOS研究方向	Engineering ; Mechanics ; Physics
WOS类目	Engineering, Electrical & Electronic ; Mechanics ; Physics, Applied
WOS记录号	WOS:001459126200001
出版者	SAGE PUBLICATIONS INC
文献类型	期刊论文
条目标识符	https://kms.shanghaitech.edu.cn/handle/2MSLDSTB/514085
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
通讯作者	Ye, Chaofeng
作者单位	ShanghaiTech Univ, Sch Informat Sci & Technol, Shanghai, Peoples R China
第一作者单位	信息科学与技术学院
通讯作者单位	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	Cheng, Longsheng,Chen, Sitong,Niu, Yaqiong,et al. Elimination of the AC modulation mutual interference for array optically pumped magnetometers[J]. INTERNATIONAL JOURNAL OF APPLIED ELECTROMAGNETICS AND MECHANICS,2025.
APA	Cheng, Longsheng,Chen, Sitong,Niu, Yaqiong,Zou, Zhicheng,&Ye, Chaofeng.(2025).Elimination of the AC modulation mutual interference for array optically pumped magnetometers.INTERNATIONAL JOURNAL OF APPLIED ELECTROMAGNETICS AND MECHANICS.
MLA	Cheng, Longsheng,et al."Elimination of the AC modulation mutual interference for array optically pumped magnetometers".INTERNATIONAL JOURNAL OF APPLIED ELECTROMAGNETICS AND MECHANICS (2025).