电子器件2012，Vol.35Issue(6)：674-678,5.DOI:10.3969/j.issn.1005-9490.2012.06.012
一种小型数字化光泵测磁系统的设计
The Design of a Small-Scale Digital Optical Pumping Magnetometer
摘要
Abstract
A small-scale digital Optical Pumping Magnetometer is designed for the occasions where the space is limited, such as the UAV magnetic airborne detection. The frontend in the system uses discrete modified VCO to carry out Lamer frequency tracking, and the end utilizes high speed CPLD and ARM embedded processor to realizes frequency measurement,deduce,display and storage. Meanwhile,this tracking system takes advantage of the redundant resources of the central controller to perform the auxiliary catching function. The compact CPLD and ARM embedded processor reduces complexity, power consumption and size of the equipment. Furthermore, building the VCO module using cheap discrete components lowers the cost consequently. The experiments show the measurement precision is about 0.01 nT,the catching time after booting and lost is less than 5 s. The total performances excel similar products.关键词
光泵磁力仪/拉莫尔频率/改进型VCO/高速CPLD/ARM/辅助捕获Key words
optical pumping magnetometer/lamer frequency/improved type VCO/high speed CPLD/ARM/auxiliary catching分类
机械制造引用本文复制引用
李辉,胡辉,张志通..一种小型数字化光泵测磁系统的设计[J].电子器件,2012,35(6):674-678,5.基金项目
安徽师范大学博士科研启动资金项目(132-151202) （132-151202）
