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.
作者
梁曙岚
汪宝旭
朱明智
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)
出处
《兵器装备工程学报》
CAS
CSCD
北大核心
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)。
关键词
核磁共振陀螺
加热线圈
磁场抑制
原子气室
nuclear magnetic resonance gyroscope
heating coil
magnetic field suppression
atomic vapor cell
作者简介
梁曙岚(1997-),男,硕士研究生,E-mail:liangshulan20@gscaep.ac.cn;通信作者:朱明智(1973-),男,博士,副研究员,硕士生导师,E-mail:zhumz@caep.cn。
