摘要
实际三轴磁场产生器安装时存在正交性误差与一致性误差,因而线圈中心均匀区所产生的磁场矢量存在较大的误差。为了校准这一误差,提出了一种基于高精度光泵磁强计监测实际产生磁场的校准方法。该方法通过光泵磁强计测量实际产生的磁场建立模型参数的回归模型,然后求解出模型参数,利用模型参数控制三轴线圈的驱动电流从而实现对误差的校正。仿真验证表明:该方法校准后的误差<1nT。
The magnetic field vector generated by the actual three-axis-coil has a comparatively big er- ror due to nonorthogonality and non-conformity between the axes. In order to deal with the error, a calibration method is proposed based on monitoring the actual magnetic field intensity with the optical pump. The method is used to calculate the parameters of the regression model which is built by mea- suring the actual field intensity with the optical pump. The application of the calculated parameters to controlling the drive current in the generator leads to the calibration of the error. The simulation re- suits show that the method is effective enough to make the calibrated error 〈1 nT.
出处
《海军工程大学学报》
CAS
北大核心
2013年第5期1-5,10,共6页
Journal of Naval University of Engineering
基金
国家部委基金资助项目(603115020402)
关键词
三轴线圈
磁场发生器
磁场矢量
校准
three-axis-coil
magnetic field generator
magnetic field vector
calibration
