Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
8154832 | Journal of Magnetism and Magnetic Materials | 2016 | 25 Pages |
Abstract
Misalignment error is one key factor influencing the measurement accuracy of geomagnetic vector measurement system, which should be calibrated with the difficulties that sensors measure different physical information and coordinates are invisible. A new misalignment calibration method by rotating a parallelepiped frame is proposed. Simulation and experiment result show the effectiveness of calibration method. The experimental system mainly contains DM-050 three-axis fluxgate magnetometer, INS (inertia navigation system), aluminium parallelepiped frame, aluminium plane base. Misalignment angles are calculated by measured data of magnetometer and INS after rotating the aluminium parallelepiped frame on aluminium plane base. After calibration, RMS error of geomagnetic north, vertical and east are reduced from 349.441Â nT, 392.530Â nT and 562.316Â nT to 40.130Â nT, 91.586Â nT and 141.989Â nT respectively.
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Condensed Matter Physics
Authors
Hongfeng Pang, XueJun Zhu, Mengchun Pan, Qi Zhang, Chengbiao Wan, Shitu Luo, Dixiang Chen, Jinfei Chen, Ji Li, Yunxiao Lv,