测试技术学报2011，Vol.25Issue(4)：371-375,5.DOI:10.3969/j.issn.1671-7449.2011.04.020
任意姿态变化下的磁通门传感器误差校正
Error Calibration of Fluxgate Magnetometers in Arbitrary Attitude Situation
庞鸿锋 1罗诗途 1陈棣湘 1潘孟春 1张琦1
作者信息
- 1. 国防科学技术大学机电工程与自动化学院,湖南长沙410073
- 折叠
摘要
Abstract
Diversionary error of three-axis fluxgate magnetometer can not be avoided when its attitude changes. The main reasons are non-orthogonality between axes and different amplification of each axis. So, it is necessary to research calibration method and improve measurement precision. A stable magnetic circumstance is selected to calibrate a Germany DM-series three-axis fluxgate magnetometer. Firstly, the magnetometer attitude changes arbitrary. Secondly, the least squares method is used to estimate calibration parameters, and then, diversionary error is suppressed. Lastly, with the magnetometer attitude changing arbitrary at the validation place, the calibration parameters are used to reduce diversionary error. Experimental results show that the diversionary error at the calibration place and the validation place are suppressed from 106 nT and 89 nT to 27 nT and 23 nT, respectively. Diversionary errors are reduced greatly, which demonstrates that the calibration performance is effective.关键词
磁通门传感器/任意姿态/最小二乘/误差校正Key words
fluxgate magnetometers/ arbitrary attitude/ least squares method/ error calibration分类
机械制造引用本文复制引用
庞鸿锋,罗诗途,陈棣湘,潘孟春,张琦..任意姿态变化下的磁通门传感器误差校正[J].测试技术学报,2011,25(4):371-375,5.
