面向地磁探测的平面三轴GMI磁传感器磁场信号解算方法及验证

doi:10.3799/dqkx.2025.249

面向地磁探测的平面三轴GMI磁传感器磁场信号解算方法及验证

doi: 10.3799/dqkx.2025.249

晋芳^1,2,3, ,,
江锦鹏^1,2,3,
鲁佳琦^1,2,3,
朱晓渝^1,2,3,
王世恒^1,2,3,
董凯锋^1,2,3,
宋俊磊^1,2,3,
莫文琴^1,2,3

1. 中国地质大学(武汉)自动化学院, 武汉, 430074;
2. 复杂系统先进控制与智能自动化湖北省重点实验室, 武汉, 430074;
3. 地球探测智能化技术教育部工程研究中心, 武汉, 430074

基金项目:

湖北省自然科学基金面上项目(No.2023AFB632)

湖北省教育厅指导性项目(No.B2023242)

详细信息

作者简介:
晋芳(1978- ),副教授,从事地磁探测,高精度磁导航传感器研制,E-mail:jinfang78@cug.edu.cn,ORCID:0000-0003-0774-788X

通讯作者:
晋芳,ORCID:0000-0003-0774-788X,E-mail:jinfang78@cug.edu.cn

中图分类号: P318.6;TP212
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出版历程
- 收稿日期: 2025-11-15
- 网络出版日期: 2025-12-03

Method for Decoding Magnetic Field Signals from Planar Triaxial GMI Magnetic Sensors for Terrestrial Magnetic Surveys and Its Validation

JIN Fang^{1,2,3
, ,},
JIANG JinPeng^1,2,3,
LU JiaQi^1,2,3,
ZHU XiaoYu^1,2,3,
WANG ShiHeng^1,2,3,
DONG KaiFeng^1,2,3,
SONG JunLei^1,2,3,
MO WenQin^1,2,3

1 School of Automation, China University of Geosciences, Wuhan, 430074, China;
2 Hubei key Laboratory of Advanced Control and Intelligent Automation for Complex Systems, Wuhan, 430074, China;
3 Engineering Research Center of Intelligent Technology for Geo-Exploration, Ministry of Education, Wuhan, 430074, China

摘要

摘要: 地磁场在地球内部具有稳定分布，其方向和强度可作为天然参考基准。地磁探测技术为深地、水下等复杂环境提供了可靠的导航解决方案，尤其在自主性、隐蔽性和抗干扰能力方面优势显著。地磁导航探测中多采用三轴磁传感器获取空间磁场分布信息，从而反演得到位置信息，因此三轴磁传感器精度是地磁导航探测的关键性能指标之一。然而，传统三轴磁传感器由于体积大、制备工艺复杂、正交性难以保证，常引入测量误差且不易校正，制约了其精度的提升。为此，本文提出了一种基于磁力线变轨和磁力线聚集原理的平面三轴GMI磁传感器设计方案。该设计将三个磁探头在平面内呈正交排列，通过磁力线变轨结构实现三维磁场的平面化测量，有效避免常规三轴磁传感器正交性难以保证带来的误差。文中对构建的三轴磁探头进行了仿真分析，解析了各探头信号构成，并推导出相应的信号解算方法。实验结果表明，该传感器测量范围达±370 μT，X、Y、Z三个方向的输出电压灵敏度分别为1416V/T、1424V/T和628.3V/T。本方案在保障测量精度的同时，实现了三维磁场的平面化集成测量，尤其提升了Z方向的检测精度，为高性能三轴磁传感器的发展提供了新路径。
- 地磁场探测 /
- 地磁导航 /
- 平面三轴GMI磁传感器 /
- 磁力线变轨
Abstract: The geomagnetic field exhibits a stable distribution within the Earth's interior, with its direction and intensity serving as a natural reference benchmark. Geomagnetic detection technology provides reliable navigation solutions for complex environments such as deep underground and underwater settings, demonstrating particular advantages in autonomy, concealment, and interference resistance. In geomagnetic navigation detection, triaxial magnetometers are commonly used to acquire the spatial distribution information of the magnetic field, thereby inverting position information. Hence, the accuracy of triaxial magnetometers is one of the key performance indicators in geomagnetic navigation detection. However, conventional triaxial magnetic sensors suffer from large size, complex fabrication processes, and difficulty in ensuring orthogonality. These factors frequently introduce measurement errors that are challenging to correct, thereby limiting precision improvements. To address this, this paper proposes a planar triaxial GMI magnetic sensor design based on the principles of magnetic flux line reorientation and magnetic flux line aggregation. This design orthogonally arranges three magnetic probes within a plane. By employing a magnetic flux line deflection structure, it enables planar measurement of three-dimensional magnetic fields, effectively mitigating errors arising from the inherent orthogonality challenges of conventional triaxial sensors. The constructed triaxial magnetic probes underwent simulation analysis, with the signal composition of each probe resolved and corresponding signal calculation methods derived. Experimental results demonstrate a measurement range of ±370 µT, with output voltage sensitivities of 1416 V/T, 1424 V/T, and 628.3 V/T for the X, Y, and Z axes respectively. This approach achieves planar integrated measurement of three-dimensional magnetic fields while maintaining measurement accuracy, notably enhancing detection precision in the Z-direction. It thus provides a novel pathway for developing high-performance triaxial magnetic sensors.
- Geomagnetic Field Detection /
- Earth-magnetism Navigation /
- Planar Triaxial GMI Magnetic Sensor /
- Magnetic Flux Redirection

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参考文献(39)

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面向地磁探测的平面三轴GMI磁传感器磁场信号解算方法及验证

doi: 10.3799/dqkx.2025.249

作者简介:
晋芳(1978- ),副教授,从事地磁探测,高精度磁导航传感器研制,E-mail:jinfang78@cug.edu.cn,ORCID:0000-0003-0774-788X

通讯作者:
晋芳,ORCID:0000-0003-0774-788X,E-mail:jinfang78@cug.edu.cn

计量

Method for Decoding Magnetic Field Signals from Planar Triaxial GMI Magnetic Sensors for Terrestrial Magnetic Surveys and Its Validation

计量

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留言板

面向地磁探测的平面三轴GMI磁传感器磁场信号解算方法及验证

doi: 10.3799/dqkx.2025.249

作者简介: 晋芳(1978- ),副教授,从事地磁探测,高精度磁导航传感器研制,E-mail:jinfang78@cug.edu.cn,ORCID:0000-0003-0774-788X

通讯作者: 晋芳,ORCID:0000-0003-0774-788X,E-mail:jinfang78@cug.edu.cn

计量

出版历程

Method for Decoding Magnetic Field Signals from Planar Triaxial GMI Magnetic Sensors for Terrestrial Magnetic Surveys and Its Validation

计量

出版历程

目录

作者简介:
晋芳(1978- ),副教授,从事地磁探测,高精度磁导航传感器研制,E-mail:jinfang78@cug.edu.cn,ORCID:0000-0003-0774-788X

通讯作者:
晋芳,ORCID:0000-0003-0774-788X,E-mail:jinfang78@cug.edu.cn