一种基于STM32的弱磁信号检测和处理系统  

A System of Detecting and Processing Weak Magnetic Signals Based on STM32

作　　者：李晓敏[1] 侯朝焕[1] 朱昀[1] 

机构地区：[1]中国科学院声学研究所,北京100190

出　　处：《微计算机应用》2011年第3期49-53,共5页Microcomputer Applications

摘　　要：设计了一种弱磁信号检测和处理系统,用高精度低功耗STM32芯片控制双轴磁阻传感器和模数转换芯片对地磁信号进行采集和转换,通过SPI接口将数据送至上位机处理数据,并在用户界面上实时显示系统当前磁角。经过实验验证和分析,本系统可以成功地应用于弱磁信号的检测与处理,证明了该系统的可行性和实用性。A system of detecting and processing weak magnetic signals was designed in this paper. It used STM32, with high precision and low power consumption, for the geomagnetism acquisition and conversion by controlling the 2 - asix magnetic sensor and A/D, and then handle data to PC through SPI interface. Finally, the current system magnetic angle was show on the manual interface. Through experiments and analysis, it can be successfully applied to the weak magnetic signal detection and treatment, proved the feasibility and practicality of this system.

关 键 词：STM32 弱磁信号 检测 处理 

分 类 号：TN911.23[电子电信—通信与信息系统]