一种海洋环境地磁场三分量的测量方法

A method of measuring three-component geomagnetic field on ocean

提出了一种利用安装在舰船上的三分量磁传感器进行地磁场测量的方法.从理论上解决了在任意舰船姿态下,消除测量中舰船磁场干扰的问题.为测量船在海上测量地磁场的三分量奠定了理论基础.根据我国舰船普遍安装的导航设备的精度,进行了计算机仿真.从仿真结果看,其误差不超过50 nT,能够满足舰载消磁系统对三分量磁场的精度要求.

A method is presented to measure the three-component geomagnetic field with a magnetic sensor equipped on a ship. It theoretically solves the problem of how to eliminate the disturbance of the shiprs magnetic field in any moving condition, and constructs the theoretical base for surveying ships to measure the three-component geomagnetic field at sea. A simulation is done according to the precision of the navigation systems that are equipped on ships in our country. The result of the simulation can reach 50 nT in precision, which can meet the required precision of the degaussing system on ship.