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- 2017
微型磁通门传感器的激励仿真设计
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Abstract:
微型磁通门传感器因具有功耗低、灵敏度高、分辨率高、结构简单和成本低等特点，被广泛应用于地球物理勘探、地磁导航、太空环境监测、医学诊疗等弱磁场测量领域。而对于该传感器，激励效果的好坏直接决定整套系统的性能，因而有必要为激励模块建立准确的仿真模型。基于法拉第电磁感应定律对双铁芯磁芯结构进行数学建模，并给出正弦波激励下电压、磁场量等物理量的波形。依据中国科学院地质与地球物理研究所研制的磁通门磁强计KDM-01的结构参数构建激励模块的仿真模型，得到的仿真结果与测试结果基本一致。并将该模型应用于设计的磁强计中，测试数据与标准磁强计非常近似。两者证明了所建立的数值模型的有效性和准确性。
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