一种超小型磁选态铯原子钟  

Small compact magnetically state-selected cesium atomic clock

作　　者：陈江[1,2] 刘志栋 王骥[1,2] 马沛[1] 郭磊 杨炜[1,2] 成大鹏[1] 杨军 马寅光[1] 崔敬忠 涂建辉 CHEN Jiang;LIU Zhi-dong;WANG Ji;MA Pei;GUO Lei;YANG Wei;CHENG Da-peng;YANG Jun;MA Yin-guang;CUI Jing-zhong;TU Jian-hui(Lanzhou Institute of Physics,Lanzhou 730000,China;Science and Technology on Vacuum Technology and Physics Laboratory,Lanzhou 730000,China)

机构地区：[1]兰州空间技术物理研究所,兰州730000 [2]真空技术与物理重点实验室,兰州730000

出　　处：《时间频率学报》2022年第1期9-14,共6页Journal of Time and Frequency

基　　金：国家自然科学基金资助项目(61971209);真空技术与物理重点实验室基金资助项目(HTKJ2020KL510006)。

摘　　要：本文提出了一种超小型磁选态铯原子钟。与传统的小型铯原子钟相比,超小型铯钟体积减小40%,其中铯束管体积减小23%,频标电路体积减小48%。采用数值方法研究了该钟的性能,结果表明,与传统小型铯钟LIP Cs-3000相比,超小型铯钟的Ramsey线宽增大67%,信噪比增大36%。该超小型铯钟体积约为27 L,预计Allan偏差介于1.0×10^(-11)/■~3.3×10^(-11)/■之间。数值计算结果为超小型铯钟的研制奠定了理论基础。This paper presents a small compact cesium atomic clock.Compared with the traditional compact cesium atomic clock,the volume of the small compact cesium clock would be reduced by 40%,the cesium beam tube is reduced by 23%,and the circuit by 48%.The performance of the clock is simulated with numerical methods.The results show that,compared with the traditional compact cesium clock,the Ramsey central peak width of the small compact cesium clock will increase by 67%,and the signal-to-noise ratio increase by 36%.The Allan variance is estimated to be between 1.0×10^(-11)/■ and 3.3×10^(-11)/■.The results of the article pave a good way for the development of small compact cesium clocks.

关 键 词：铯原子钟 铯束管 ALLAN方差 

分 类 号：TM935.115[电气工程—电力电子与电力传动]