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
晋芳 , 江锦鹏 , 鲁佳琦 , 朱晓渝 , 王世恒 , 董凯锋 , 宋俊磊 , 莫文琴
地球科学 ›› 2026, Vol. 51 ›› Issue (8) : 3181 -3190.
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
Method for Decoding Magnetic Field Signals from Planar Triaxial GMI Magnetic Sensors for Terrestrial Magnetic Surveys and Its Validation
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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,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3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1 416 V/T、1 424 V/T和628.3 V/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.
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 1 416 V/T, 1 424 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.
| [1] |
Duan, J. S., Liang, S. H., Qi, N., et al., 2014. The Development and Application of HD⁃2010 Proton Precession Magnetometer. World Nuclear Geoscience, 31(2): 115-119 (in Chinese with English abstract). |
| [2] |
Ge, L. L., Ren, Q. Y., Zhao, H., 2017. Design and Performance Test of High⁃Precision Magnetoresistive Magnetometer for Space Application. Spacecraft Environment Engineering, 34(2): 166-170 (in Chinese with English abstract). |
| [3] |
Jiang, S. H., Li, X. Q., Chen, B., etal., 2025. Wire RopeBroken Wire Detection Method Based on Magnetic Field Gradient and Energy Method. China Measurement & Test, 51(6): 40-48 (in Chinese with English abstract). |
| [4] |
Lai, W. M., Hsu, F. M., Sung, W. L., et al., 2015. Monolithic Integration of Micro Magnetic Pillar Array with Anisotropic Magneto⁃Resistive (AMR) Structure for Out⁃of⁃Plane Magnetic Field Detection. 2015 28th IEEE International Conference on Micro Electro Mechanical Systems (MEMS). January 18-22, 2015, Estoril, Portugal. IEEE: 901-904. https://doi.org/10.1109/MEMSYS.2015.7051105 |
| [5] |
Li, T., Zhang, J. S., Wang, S. C., et al., 2014. Selection Criterion of Geomagnetic Matching Area Based on Improved Geomagnetic Entropy. Journal of Geodesy and Geodynamics, 34(5): 151-155 (in Chinese with English abstract). |
| [6] |
Li, Y. X., Liu, X. Y., 2021. Paleomagnetic Field Research: Challenges and Opportunities. Acta Geologica Sinica, 95(01): 64-74 (in Chinese with English abstract). |
| [7] |
Lu, C. C., Huang, J., 2015. A 3⁃Axis Miniature Magnetic Sensor Based on a Planar Fluxgate Magnetometer with an Orthogonal Fluxguide. Sensors, 15(6): 14727-14744. https://doi.org/10.3390/s150614727 |
| [8] |
Lu, J. Q., Jin, F., Dong, K. F., et al., 2024. Simulation and Experiment of Planar Magnetic Sensor. 2024 Academic Conference of China Instrument and Control Society (ACCIS). July 28-31, 2024, Chengdu, China. IEEE: 497-501. https://doi.org/10.1109/ACCIS62068. 2024. 10948699 |
| [9] |
Luong, V. S., Su, Y. H., Lu, C. C., et al., 2018. Planarization, Fabrication, and Characterization of Three⁃Dimensional Magnetic Field Sensors. IEEE Transactions on Nanotechnology, 17(1): 11-25. https://doi.org/10.1109/TNANO.2017.2660062 |
| [10] |
Ma, Y. N., Wang, Y. G., 2024. Method for Scalar Magnetic Field Measurement of SERF Magnetometer Based on Pump Light Modulation. Flight Control & Detection, 7(6): 82-88 (in Chinese with English abstract). |
| [11] |
Pei, H. G., Zhang, H. B., Ouyang, J., et al., 2025. Error Compensation Method for Anisotropic MagnetoresistiveSensors. Ship Electronic Engineering, 45(7): 181-186 (in Chinese with English abstract). |
| [12] |
Pu, X. L., Yang, Y. H., Liu, Y., 2024. A Review of Space Ore Prospecting: a New Direction for Exploring Mineral Resources. Bulletin of Mineralogy, Petrology and Geochemistry, 43(6): 1280-1302. (in Chinese with English abstract). |
| [13] |
Sun, J. S., Wu, Y. Y., Li, H. Y., et al., 2025. Research on Taylor Polynomial Model Based on Proton Vector Magnetometer Stations in Jiangsu Area. Earthquake, 45(3): 168-179 (in Chinese with English abstract). |
| [14] |
Trinh, X. T., Jeng, J. T., Lu, C. C., et al., 2017. Miniature Tri⁃Axis Magnetometer with In⁃Plane GMR Sensors. IEEE Transactions on Magnetics, 53(11): 4004304. https://doi.org/10.1109/TMAG.2017.2696243 |
| [15] |
Wang, X. Z., Feng, Z. S., Ju, H. H., et al., 2024. The Inductive Magnetometer of the Meridian Project II. Reviews of Geophysics and Planetary Physics, 55(1): 31-36 (in Chinese with English abstract). |
| [16] |
Xing, A. C., Li, H. B., Kan, B. X., et al., 2025. Key Technologies and Development Trends of Marine Geomagnetic Navigation. Navigation Positioning and Timing, 12(2): 1-14 (in Chinese with English abstract). |
| [17] |
Zhang, M., Zhao, S. Z., Jia, L., et al., 2020. Application of Polarization Method in Extracting Seismo⁃Magnetic Anomaly Information. Progress in Geophysics, 35(2): 488-494 (in Chinese with English abstract). |
| [18] |
Zhang, Q. S., Dong, G. W., An, N., et al., 2025. A NewIdea of Integrated Calibration Method for Airborne Magnetic Vector Measurement Device. Geological Review, 71(S1): 243-246(in Chinese with English abstract). |
| [19] |
Zhang, Q. Z., Zou, S., Zhang, H., 2024. Application and Progress of Residual Magnetism Measurement Based on Electron Paramagnetic Resonance Spectroscopy. Spectroscopy and Spectral Analysis, 44(1): 22-28 (in Chinese with English abstract). |
| [20] |
Zhao, D. H., Liu, Z. J., Zhao, Y. Y., et al., 2025. Measurement of Impact Current Based on Non⁃Magnetic Ring TMR Sensor. High Voltage Apparatus, 61(8): 120-127 (in Chinese with English abstract). |
| [21] |
Zhao, Y. K., Kong, M., Liu, L., et al., 2025. Research onSpace Magnetic Particle Pose Measurement System and Sensor Calibration. China Measurement & Test, 51(4): 109-115 (in Chinese with English abstract). |
| [22] |
Zheng, Y. F., Guo, Z. T., Jiao, N. Z., et al., 2024. A Holistic Perspective on Earth System Science. Science China Earth Sciences, 67(10): 3013-3040 (in Chinese with English abstract). |
湖北省自然科学基金面上项目(2023AFB632)
湖北省教育厅指导性项目(B2023242)
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