原子磁强计中碱金属原子气室无磁电加热系统设计  

Design of electromagnetic-free heating system for alkali metal atom gas chamber in atomic magnetometer

作　　者：郭骥 李仔艳 康翔宇 丁思同 李阳 GUO Ji;LI Ziyan;KANG Xiangyu;DING Sitong;LI Yang(School of Optical Electrical and Computer Engineering,University of Shanghai for Science and Technology,Shanghai 200093,China)

机构地区：[1]上海理工大学光电信息与计算机工程学院,上海200093

出　　处：《智能计算机与应用》2021年第5期115-118,共4页Intelligent Computer and Applications

摘　　要：原子气室温度控制是超高灵敏度仪器原子磁强计的关键技术之一,本文针对原子磁强计现有原子气室电加热存在的磁噪声过大的问题,设计了特殊走线的双层加热膜,利用相邻加热丝中大小相等、方向相反的电流,使其尽可能的抵消加热时加热丝产生的磁场干扰。加热膜产生的热量通过圆柱形加热结构将热量传导给气室,气室温度与设计温度之间误差小于0.1℃,同时双层结构加热膜产生的磁场干扰明显小于单层结构,本文的设计对原子磁强计的性能提升有明显的帮助。The temperature control of the atomic gas chamber is one of the key technologies of the ultra-high-sensitivity instrument atomic magnetometer. In this paper,in order to solve the problem of excessive magnetic noise in the existing atomic gas chamber electric heating of the atomic magnetometer,a special wiring heating plate is designed. Use currents of equal size and opposite directions in adjacent heating wires to offset the magnetic field interference generated by the heating wires as much as possible. The heat generated by the heating film is transferred to the gas chamber through the cylindrical heating structure. The error between the temperature of the gas chamber and the design temperature is less than0.1℃. At the same time,the magnetic field interference generated by the heating film of the double-layer structure is significantly less than that of the single-layer structure. It has obvious help to improve the performance of the atomic magnetometer.

关 键 词：原子磁强计 原子气室 双层加热膜 磁场干扰 

分 类 号：TP273.2[自动化与计算机技术—检测技术与自动化装置]