Open AccessTwo-step Calibration Method for Triaxial Magnetometers
Author(s) -
Xianran Wang,
Anju Wang,
Weilin Wang,
Yijie Qin,
Gangchun Xu,
Chen Yao,
Jun Ouyang
Publication year - 2020
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1550/4/042032
Subject(s) - magnetometer , calibration , orthogonality , scalar (mathematics) , sensitivity (control systems) , magnetic field , physics , acoustics , geodesy , mathematics , mathematical analysis , geology , geometry , engineering , electronic engineering , quantum mechanics
In this paper, two important sources of the non-orthogonal errors of triaxial magnetometers were analysed. The non-orthogonal error mainly come from the transverse sensitivity of uniaxial sensor or non-orthogonality between the three axes of magnetic magnetometer. These two error sources were separated by mathematical analysis. Then a two-step calibration method of triaxial magnetometers was designed. It showed that the peak-to-peak value of the calculated result of the scalar of magnetic field could be reduced to 56nT from 350nT within the range of 50000nT.