摘要
利用近两年半的原子钟与UTC测试数据,从时差数据、频差数据、频率漂移率和频率稳定度等方面,分别对国产和国外守时型氢原子钟、铯原子钟的长期性能(频率漂移、月频率稳定度)进行了评估和对比分析。结果表明:国产氢原子钟和铯原子钟已经具备长期稳定运行的能力,可以基本满足国内工业部门在时间频率领域对原子钟的需求。国产铯原子钟的性能与国外铯原子钟基本相当,但在长期性能方面还有一定差距,国产氢原子钟与国外最好的氢原子钟相比,性能上还略有差距。
With the observed data over about 2.5 year between the clocks and UTC,the performances of the domestic and the foreign active hydrogen and cesium atomic clocks are compared in aspects of data quality,frequency accuracy,frequency drift rate and frequency stability.The results show that the domestic hydrogen and cesium atomic clocks can operate continuously and steadily in a long time,and the performances of the domestic clocks can meet the needs of the industrial departments in the field of time and frequency application for atomic clocks.The performances of the domestic cesium atomic clocks are nearly the same with the foreign,but there are still gaps in the long term performance.Meanwhile,the performances of the domestic hydrogen atomic clocks is slightly lower than that of the foreign.
作者
史丰丰
程梦飞
李国俊
付桂涛
马红皎
SHI Feng-feng;CHENG Meng-fei;LI Guo-jun;FU Gui-tao;MA Hong-jiao(Beijing Satellite Navigation Center,Beijing 100094,China;National Time Service Center,Chinese Academic of Sciences,Xi’an 710600,China)
出处
《时间频率学报》
CSCD
2023年第4期279-288,共10页
Journal of Time and Frequency
基金
装备技术基础科研资助项目(E054J1K1601)。
关键词
国产原子钟
守时型
氢钟
铯钟
长期性能
频率漂移
月频率稳定度
domestic atomic clocks
timekeeping clocks
active hydrogen atomic clocks
cesium atomic clocks
the long-term performance
frequency drift
frequency stability at a month
