Establishment of a Brazilian Atomic Time Scale

机译：建立巴西原子时标

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The Atomic Time Scale at the Time Service Division of the National Observatory in Rio de Janeiro (ONRJ) has been carried out by commercial cesium clocks. The UTC(ONRJ) time scale based on a single commercial cesium clock selected from the ensemble of clocks is not suitable to attain the bounds of uncertainty recommended by the ITU-R and by the CCTF. The recommendation has suggested to the national time primary laboratories to coordinate with UTC within 0.1 s. The development of atomic time scale system was divided in two parts: the construction of an automated data acquisition system and the implementation of the time scale algorithm that generated a time scale based on the clock ensemble. The present work will describe the atomic time scale system and report the results obtained using real clocks data from September 27, 2004 to August 15, 2005.

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作者
Jose de Carvalho, R.;
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年度 2006
页码 p.1-8
总页数 8
原文格式 PDF
正文语种 eng
中图分类工业技术;
关键词
Atomic clocks; Uncertainty; Automation; Cesium; Data acquisition; Brazil; Observatories; Algorithms; Scale;

机译：原子钟;不确定性;自动化;铯;数据采集;巴西;天文台;算法;比例;

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Establishment of a Brazilian Atomic Time Scale

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