Measurement and modeling of magnetic declination error associated with horizontal drift

Junli Qian; Xingxing Chen; Minggui Wang; Jian Ge; Chao Zhou; Jiantao Zhang

doi:10.1117/12.2628184

18 February 2022 Measurement and modeling of magnetic declination error associated with horizontal drift

Junli Qian, Xingxing Chen, Minggui Wang, Jian Ge, Chao Zhou, Jiantao Zhang

Proceedings Volume 12162, International Conference on High Performance Computing and Communication (HPCCE 2021); 121621G (2022) https://doi.org/10.1117/12.2628184
Event: 2021 International Conference on High Performance Computing and Communication, 2021, Guangzhou, China

Abstract

In the long-term observation of geomagnetic field, the levelness of coil vector magnetometer will affect the measurement of magnetic direction. Therefore, we propose an electrical detection method of instrument non-levelness, which realizes the quantitative calculation of non-levelness by measuring the maximum and minimum values of the resultant magnetic field during detection. Then, a horizontal error model of coil vector magnetometer is constructed, and the mapping from instrument non-levelness to declination measurement error can be realized by vector operation. The results show that when the non-levelness of the instrument is less than 10", the measurement of magnetic declination variation deviates from the real value by 3.4%; When the non-levelness of the instrument is less than 20", the measurement of magnetic declination variation deviates from the real value by 13.5%.

Citation Download Citation

Junli Qian, Xingxing Chen, Minggui Wang, Jian Ge, Chao Zhou, and Jiantao Zhang "Measurement and modeling of magnetic declination error associated with horizontal drift", Proc. SPIE 12162, International Conference on High Performance Computing and Communication (HPCCE 2021), 121621G (18 February 2022); https://doi.org/10.1117/12.2628184

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KEYWORDS

Magnetism

Magnetometers

Error analysis

Magnetic sensors

Fourier transforms

Instrument modeling

Mathematical modeling

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