便携式微弱磁场传感器的研究

Study on portable weak magnetic fields sensor

基于单片机研制了用于实验教学的便携式低成本微弱磁场传感器,系统地介绍了传感器的硬件结构、软件实现方法,利用地磁场对测磁传感器进行了标样标定,并测量了铁球周围的地磁场分布,测量结果与理论计算进行了比较,数据表明:该测磁传感器具有高的准确度,运行可靠。

A design of a portable low-cost measuring sensor for weak magnetic fields based on single-chip microcomputer which was used in experimental education was presented. The hardware structure of the instrument as well as software realizing method were demonstrated. A measurement of geomagnetic field as a standard reference was conducted. Through measuring the distribution of geomagnetic field around a iron sphere and comparing the experimental result with result of theoretical calculation, the design of this instrument was proved to be highly accurate and stable.