Analysis of Atomic Time Scale

Zhang Yu; Dong Shaowu; Yuan Haibo; Wang Yanping; Zhao Shuhong; Song Huijie

doi:10.14005/j.cnki.issn1672-7673.20221206.002

Astronomical Research and Technology > 2023 > 20(6): 600-605. > DOI: 10.14005/j.cnki.issn1672-7673.20221206.002 CSTR: 32083.14.j.cnki.issn1672-7673.20221206.002

Zhang Yu, Dong Shaowu, Yuan Haibo, Wang Yanping, Zhao Shuhong, Song Huijie. Analysis of Atomic Time Scale[J]. Astronomical Research and Technology, 2023, 20(6): 600-605. DOI: 10.14005/j.cnki.issn1672-7673.20221206.002

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Analysis of Atomic Time Scale

Zhang Yu^1,2,3,
Dong Shaowu^1,2,4,
Yuan Haibo^1,2,3,
Wang Yanping^1,2,
Zhao Shuhong^1,2,
Song Huijie^1,2

1. National Time Service Center, Chinese Academy of Sciences, Xi'an 710600, China;
2. Key Lab of Time-frequency Standard, Chinese Academy of Sciences, Xi'an 710600, China;
3. University of Chinese Academy of Sciences, Beijing 100049, China;
4. School of Astronomy and Space Science, University of Chinese Academy of Sciences, Beijing 100049, China

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Received Date: November 25, 2022
Revised Date: November 30, 2022
Available Online: November 20, 2023

Graphical Abstract

Abstract

Abstract

Timekeeping atomic clocks mainly include hydrogen masers and cesium atomic clocks. In order to further explore the time-scale performance of different types of timekeeping atomic clocks, in this paper a study on the hydrogen maser and the hydrogen-cesium combined time scale is carried out. Firstly, the hydrogen maser is classified according to the d bulletin issued by BIPM. According to the classification results, the atomic time-scale theory is used to calculate the hydrogen maser time scale, and the analysis results are given. Then the time scales of cesium clocks are calculated and two different time scales of hydrogen-cesium combined ensembles are analyzed and explored. The results show that the time-scale fluctuation range of the hydrogen maser ensemble based on the small frequency drift is smaller, and the stability is better than the time scale of the hydrogen maser ensemble based on the larger frequency drift. The time scale stability of the hydrogen-cesium combination is better than the total cesium clock, and the results of different hydrogen-cesium combination time scale clocks are similar.
- hydrogen maser,
- cesium atomic clock,
- frequency drift,
- time scale,
- hydrogen-cesium combination

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References (11)

References

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