基于三维原子磁强计的核磁共振陀螺仪实验优化  

Experimental Optimization of Nuclear Magnetic Resonance Gyroscope Based on Three-axis Atomic Magnetometer

作　　者：李连花 徐正一 彭欣欣 周尹敏 裘栩炀 魏梦梦 周敏[1] 徐信业[1] LI Lian-hua;XU Zheng-yi;PENG Xin-xin;ZHOU Yin-min;QIU Xu-yang;WEI Meng-meng;ZHOU Min;XU Xin-ye(State Key Laboratory of Precision Spectroscopy, East China Normal University, Shanghai 200062, China)

机构地区：[1]华东师范大学精密光谱科学与技术国家重点实验室,上海200062

出　　处：《导航定位与授时》2021年第4期141-148,共8页Navigation Positioning and Timing

基　　金：国家重点基础研究发展计划(973计划)(2016YFB0501601,2016YFA0302103,2017YFF0212003);上海市科技重大项目(2019SHZDZX01);中国国家高技术研究发展计划(863计划)(2014AA123401);国家自然科学基金(11134003);上海市优秀学术带头人计划(12XD1402400)。

摘　　要：核磁共振陀螺仪内嵌三维原子磁强计是实现核磁共振陀螺仪小型化的一种有效途径,故介绍了一种基于三维原子磁强计的核磁共振陀螺仪。对影响三维原子磁强计性能的重要参数进行了优化,得到了较优的x轴、y轴和z轴磁强计信号标度因子,进而实现了更灵敏的三维原子磁强计。在三维磁场闭环锁定6000s后,测得核磁共振陀螺仪的角度随机游走和零偏稳定性分别为0.038(°)/h1/2和0.94(°)/h。The built-in three-axis atomic magnetometer in the nuclear magnetic resonance gyro-scope(NMRG)is an elegant way to realize the miniaturization of the NMRG.In this paper,a NMRG based on a three-axis atomic magnetometer is demonstrated.The important parameters that affect the performance of the three-axis atomic magnetometer are optimized,and the better scale factors of the x-axis,y-axis and z-axis magnetometer signal are obtained,and a more sensitive three-axis atomic magnetometer has been realised.After the three-axis magnetic fields are locked in closed-loop to measure the output of the NMRG for 6000 seconds,the angle random walk(ARW)and bias instability of the NMRG are measured as 0.038(°)/h1/2 and 0.94(°)/h,respectively.

关 键 词：核磁共振陀螺仪 三维原子磁强计 磁场闭环锁定 阿伦偏差 

分 类 号：V241.5[航空宇航科学与技术—飞行器设计]