小型核磁共振陀螺无磁加热线圈设计与仿真  

Design and simulation of non-magnetic heating coils for a miniature nuclear magnetic resonance gyroscope

作　　者：梁曙岚 汪宝旭[2] 朱明智[2] 邓东阁 LIANG Shulan;WANG Baoxu;ZHU Mingzhi;DENG Dongge(Graduate School,China Academy of Engineering Physics,Beijing 100193,China;Institute of General Engineering,China Academy of Engineering Physics,Mianyang 621999,China)

机构地区：[1]中国工程物理研究院研究生院,北京100193 [2]中国工程物理研究院总体工程研究所,四川绵阳621999

出　　处：《兵器装备工程学报》2023年第7期197-202,共6页Journal of Ordnance Equipment Engineering

基　　金：NSAF联合基金重点支持项目(U2030209);NSFC青年基金项目(52007177)。

摘　　要：针对小型核磁共振陀螺原子气室加热与剩磁抑制要求,设计了一种用于毫米级原子气室的无磁加热线圈。利用热-磁仿真分析了加热线圈结构参数和加热电流对原子气室温度和剩磁的影响规律。针对给定的原子气室加热方案,开展了加热线圈结构和电流参数优化。设计结果表明:原子气室内部最大直流剩磁<0.3 nT,所设计的加热线圈和方案满足样机气室无磁加热要求。This paper designs a non-magnetic heating coil for millimeter-class atomic vapor cells to meet the heating and magnetic suppression requirements of atomic vapor cells of a miniature nuclear magnetic resonance gyroscope(mini-NMRG).Thermal-magnetic simulations are used to investigate the effect of heating coil structure parameters and heating current on cell temperature and magnetic fields of atomic vapor cells.The parameter optimization of the heating coil structure and current is completed for a given cell heating configuration.The simulation results from the optimization show that the maximum DC residual magnetic field intensity inside the cell is 0.3 nT,and the designed heating coil and configuration can meet the non-magnetic heating requirements of the prototype vapor cell.

关 键 词：核磁共振陀螺 加热线圈 磁场抑制 原子气室 

分 类 号：TH702[机械工程—仪器科学与技术] V241.557[机械工程—精密仪器及机械]