三轴磁强计测量误差修正方法  

The error correction of three-axis magnetometer measurement

作　　者：郝东[1] 绳涛[1] 陈小前[1] 

机构地区：[1]国防科学技术大学航天与材料工程学院,长沙410073

出　　处：《航天器环境工程》2011年第5期463-466,共4页Spacecraft Environment Engineering

基　　金：国家自然科学基金(项目编号:50975280);教育部新世纪优秀人才支持计划(项目编号:NCET-08-0149)

摘　　要：三轴磁强计测量误差修正对卫星姿态确定和控制具有重要意义。文章针对三轴磁强计测量误差的来源进行理论分析,引入磁场输入引起的常值漂移,建立了三轴磁强计测量误差修正模型,并基于该模型在磁环境模拟器中对Honeywell公司的三轴磁强计(HMR2300R)进行标定。实验结果表明改进模型可以将测量误差控制在50 nT以内,满足低成本敏感器在微小卫星姿态确定中的应用要求。The error correction of three-axis magnetometer measurement is of great importance to satellite attitude determination and control.In this paper,the error sources of three-axis magnetometer measurement are theoretically analyzed.Considering the case of constant shift caused by the magnetic input,an error correction model is proposed,with which the three-axis magnetometer HMR2300R made by Honeywell is calibrated and tested in a magnetic simulator.The experimental results show that the error of the three-axis magnetometer measurement can be controlled within 50 nT with the proposed method,which can meet the application requirements for low cost sensors in attitude determination and control of micro-satellites.

关 键 词：三轴磁强计 修正模型 常值漂移 磁环境模拟器 

分 类 号：V412.42[航空宇航科学与技术—航空宇航推进理论与工程] TH762.3[机械工程—仪器科学与技术]