引用本文
  •    [点击复制]
  •    [点击复制]
【打印本页】 【在线阅读全文】【下载PDF全文】 查看/发表评论下载PDF阅读器关闭

←前一篇|后一篇→

过刊浏览    高级检索

本文已被:浏览 96次   下载 101 本文二维码信息
码上扫一扫!
基于三维原子磁强计的核磁共振陀螺仪实验优化
李连花,徐正一,彭欣欣,周尹敏,裘栩炀,魏梦梦,周敏,徐信业
0
(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)
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。
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
DOI:
基金项目: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)
Experimental Optimization of Nuclear Magnetic Resonance Gyroscope Based on Three-axis Atomic Magnetometer
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)
Abstract:
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.
Key words:  Nuclear magnetic resonance gyroscope  Three-axis atomic magnetometer  Magnetic field closed-loop locking  Allan deviation

用微信扫一扫

用微信扫一扫