The system measured earth magnetic filed strength.The results show the error is small and it can improved temperature property of fluxgate sensor and output stability.

• 应用该系统对地球磁场进行了测量,结果显示:它与实际数据之间的误差较小,改善了传统的磁通门信号处理的模拟电路的温度性能,提高了输出信号的稳定性。