首页 | 本学科首页   官方微博 | 高级检索  
     检索      

铯原子喷泉频标的相对论频移
引用本文:高卫,刘海峰.铯原子喷泉频标的相对论频移[J].时间频率学报,1998,21(1):1-7.
作者姓名:高卫  刘海峰
作者单位:中国科学院陕西天文台!陕西省临潼,710600
基金项目:国家自然科学基金,中科院时频信号处理青年实验室资助
摘    要:详细分析了铯原子喷泉频标的相对论频移机制,其中包括频标内部的二级多普勒频移和重力频移,以及与频标位置有关的重力领移。导出了频移的计算公式,估算了频移的大小并讨论了它们对铯原子喷泉频标准确度的影响。

关 键 词:铯原子喷泉频标  相对论效应  频移

Relativistic Frequency Shifts in a Cesium Fountain Frequency Standard
GAO Wei, LIU Hai-fang, KE Xi-zheng.Relativistic Frequency Shifts in a Cesium Fountain Frequency Standard[J].Journal of Time and Frequency,1998,21(1):1-7.
Authors:GAO Wei  LIU Hai-fang  KE Xi-zheng
Abstract:Frequency shifts due to relativistic effects in a laser cooled cesium fountain frequencystandard. i. e. second-order Doppler shift and gravitational shift. are investigated in detail. with the formulas for evaluation presented. The result shows that for laser cooled ceslum source, the second-Order Doppler shift and gravitational shift inside a casium fountain frequency standard are of the order of 10-17 under typical conditions for operation,thus negligible compared with other shifts. But the gravitational shift associated with theelevation or the gravitational potential of the standard is of the order of 10-13 for H= 1000m and should be corrected when the frequency of the standard is compared with otherprimary frequency standard, or when the standard is used for TAI Computation. The elevation uncertainty of im produces a fractional frequency shift of about 10-16.
Keywords:Cesium Fountain Frequency Standard  Relativistic Effect  Frequency shift
本文献已被 CNKI 维普 等数据库收录!
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号