泵浦光功率对核磁共振陀螺仪零偏的影响分析  

Research on the Influences of Pumped Laser Power on Bias Drift of Nuclear Magnetic Resonance Gyro

作　　者：黄伟 刘院省[1,2] 贺宇 王妍[1,2] 霍丽君 HUANG Wei;LIU Yuan-xing;HE Yu;WANG Yan;HUO Li-junt(Quantum Engineering Research Center of CASC,Beijing 100094;Beijing Institute of Aerospace Control Devices,Beijing 100039)

机构地区：[1]中国航天科技集团有限公司量子工程研究中心,北京100094 [2]北京航天控制仪器研究所,北京100039

出　　处：《导航与控制》2018年第5期33-36,59,共5页Navigation and Control

基　　金：国家自然科学基金青年基金(编号:61601017);航天科技集团钱学森青年创新基金

摘　　要：核磁共振陀螺仪中,泵浦光频率和功率参量会对陀螺性能产生重要影响。研究了泵浦光功率对核磁共振陀螺仪零位的影响,阐明了不同谱线加宽条件下泵浦光功率稳定性与核磁共振陀螺仪零偏稳定性的关系。结果表明,泵浦光功率改变0.7‰,陀螺零位变化0.41(°)/s,且缓冲气体压强增大可以减小泵浦光功率对零位的影响。The pumped laser parameters may influence the bias drift of nuclear magnetic resonance gyro NMRG. The bias drift of NMRG with the power fluctuation of pumped laser has been investigated in this paper. The relationship between bias drift of NMRG and pumped laser intensity with the different pressure of buffer gas in vapor cell has been shown in both experiment and simulation. It shows that 0. 7‰ of the change of the pumped power cause the 0. 41（°）/s bias drift of NMRG. It also shows that high pressure of buffer gas will reduce the influence of pumped laser power on bias drift of NMRG.

关 键 词：原子陀螺仪 核磁共振 功率波动 零位偏移 原子核自旋磁矩 

分 类 号：U666.123[交通运输工程—船舶及航道工程]