汽室对基于里德堡原子电场测量的影响及解决方案  

Influence of Vapor Chamber on Electric Field Measurement Based on Rydberg Atom

作　　者：赵敏[1] 梁健同[1] 董德晖 谭艳清 梁琼崇[1] Zhao Min;Liang Jian-tong;Dong De-hui;Tan Yan-qing;Liang Qiong-chong(The Fifth Electronics Research Institute of Ministry of Industry and Information Technology,Guangdong Guangzhou 510570)

机构地区：[1]工业和信息化部电子第五研究所,广东广州510570

出　　处：《电子质量》2022年第4期152-155,共4页Electronics Quality

基　　金：广州市科技计划项目:产业技术重大攻关计划(201902020002)资助。

摘　　要：基于里德堡原子的微波电场传感器克服了传统金属或介质传感器的不足,具有高灵敏度、高空间分辨力、宽频率范围、不影响原有电磁场结构以及自溯源的优点,成为微波电场测量的未来方向。但也存在不足:原子汽室的多次发射形成的驻波使得测量不确定度随频率升高而变大。文章通过仿真,分析了原子汽室驻波对测量结果不确定度的影响,然后提出用数字滤波消除驻波影响和多项式拟合外推消除消减近场影响的方法,并给出试验装置组成及外推计算公式。The microwave electric field sensor based on Rydberg atom overcomes the shortcomings of traditional metal or dielectric sensors.It has the advantages of high sensitivity,high spatial resolution,wide frequency range,no influence on the original electromagnetic field structure and self-traceability.It has become the future direction of microwave electric field measurement.But there are also shortcomings:the standing wave formed by multiple emission of atomic vapor chamber makes the measurement uncertainty increase with the increase of frequency.Through simulation,this paper analyzes the influence of atomic vapor chamber standing wave on the uncertainty of measurement results,then puts forward the methods of eliminating the influence of standing wave by digital filtering and polynomial fitting extrapolation,and gives the composition of test device and extrapolation calculation formula.

关 键 词：里德堡原子 电场测量 原子汽室 驻波 外推法 

分 类 号：O441.5[理学—电磁学] O562[理学—物理]