被动型微波原子钟钟跃迁谱线测量技术研究  

Study on the measurement technology of clock transition spectrum line of passive microwave atomic clock

作　　者：赵春勃 张荣彦[1] 张强[1] 杜二旺[1] 贺玉玲 蒙艳松[1,2] ZHAO Chun-bo;ZHANG Rong-yan;ZHANG Qiang;DU Er-wang;HE Yu-ling;MENG Yan-song(China Academy of Space Technology(Xi’an),Xi’an 710100,China;National Key Laboratory of Science and Technology on Space Microwave,Xi’an 710100,China)

机构地区：[1]中国空间技术研究院西安分院,西安710100 [2]空间微波技术重点实验室,西安710100

出　　处：《时间频率学报》2022年第1期34-43,共10页Journal of Time and Frequency

基　　金：国家重点实验室基金资助项目(6142411186408,6142411196307)。

摘　　要：以原子超精细能级跃迁谱线为频率参考,被动型原子钟通过伺服控制技术实现对本地压控振荡器控制。因此,原子跃迁谱线的特性直接决定了原子钟的频率稳定度。基于被动型原子钟的基本工作原理与微弱信号提取方法,本文建立了原子钟谱线测量与闭环研究系统。基于该系统不仅成功实现了连续型原子钟,如铷原子钟、单频调制被动型氢原子钟钟跃迁谱线的精密测量,还将其扩展到时序型汞离子钟钟跃迁谱线的提取与测量。该系统为快速测量评估钟跃迁谱线提供了可能,也为后续产品研制奠定了坚实基础。Based on the frequency reference of atomic hyperfine level transition lines,the local voltage controlled crystal oscillator is controlled by the servo control technology in the passive atomic clock.Therefore,the performance of atomic transition lines directly determines the frequency stability of the atomic clock.In this paper,based on the basic principle of passive atomic clock and the method of weak signal extraction,the measurement and closed-loop research of atomic clock spectral lines are successfully established.Based on this system,not only the precise measurement of the transition spectrum of continuous atomic clock such as rubidium atomic clock and single frequency modulation passive hydrogen atomic clock is successfully realized,but also it is extended to the extraction and measurement of the transition spectrum of sequential mercury ion clock.The system not only provides the possibility for rapid measurement and evaluation of clock transition spectrum,but also lays a solid foundation for subsequent product development.

关 键 词：被动型微波原子钟 钟跃迁谱线 物理部分 测量技术 测量系统 

分 类 号：TM935.115[电气工程—电力电子与电力传动]