传感技术学报2016，Vol.29Issue(9)：1305-1310,6.DOI:10.3969/j.issn.1004-1699.2016.09.001
铯光泵磁力仪测频方法的研究和实现
Research and Implementation of Frequency Measurement Method for Cesium Optically Pumped Magnetometer
摘要
Abstract
It is necessary for cesium optically pumped magnetometer to measure magnetic resonance frequency and change it to magnetic field intensity. An improved method was proposed to reduce errors based on complete synchro⁃nization frequency measurement method. When the numbers of measured signal cycles in two consecutive measure⁃ments are the same,the count value will be used to calculate the frequency of the measured signal,or it will be dis⁃carded. The biggest error of the improved method is as half as the original method.A FPGA-basedfrequency mea⁃surement system was designed and implemented. The results of the experiment show that the improved method can effectively reduce errors and the absolute accuracy changed tomagnetic field intensity meets the design requirement.关键词
磁力仪/频率测量/全同步/FPGA/误差Key words
magnetometer/complete synchronization/frequency measurement/FPGA/error分类
信息技术与安全科学引用本文复制引用
卞骁炜,李醒飞,李立,杨颖..铯光泵磁力仪测频方法的研究和实现[J].传感技术学报,2016,29(9):1305-1310,6.基金项目
国家自然科学基金项目（61503283）；天津市应用基础与前沿技术研究计划项目（青年项目） （）
