一种简便的三轴磁强计标定方法

Simplified Calibration of Three-axis Magnetometer

三轴磁强计作为卫星地磁导航中的姿态确定传感器,使用前对其进行标定尤为重要。阐述了一种简单的三轴磁强计标定方法,并且在零磁实验室中对Honeywell公司的HMR2300三轴磁强计进行零偏误差、线性度、灵敏度标定以及在均匀稳定的地磁场中进行三轴不正交度的标定。试验结果表明,该标定方法可以满足微小卫星姿态确定的要求。

Three-axis magnetometer is the geomagnetic navigation sensor in attitude determination of satellites,and it needs to be calibrated before application.This paper presents a simplified magnetometer calibration method in ground environment.The calibration experiment was conducted based on the Honeywell HMR2300three-axis magnetometer in zero magnetic lab for the calibration of zero offset error,linearity,sensitivity,and the calibration of three-axis orthogonal degrees in uniform geomagnetic field.The results show that this calibration method can satisfy the requirement of small satellites＇ attitude determination.