Atomic time-keeping from 1955 to the present

doi:10.1088/0026-1394/42/3/S04

Atomic time-keeping from 1955 to the present

Author

Bernard Guinot ¹ and Elisa Felicitas Arias ^1,2

Affiliations

¹ Observatoire de Paris—Associated astronomers, 61, Av. de l'Observatoire, 75014 Paris, France
² Bureau International des Poids et Mesures (BIPM), Pavillon de Breteuil, 92310 Sèvres, France

E-mail

guinot.bernard@wanadoo.fr farias@bipm.org

Journal

Metrologia Create an alert RSS this journal

Issue

Volume 42, Number 3

Citation

Bernard Guinot and Elisa Felicitas Arias 2005 Metrologia 42 S20

doi: 10.1088/0026-1394/42/3/S04

Article References Cited By

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Abstract

This paper summarizes the creation and technical evolution of atomic time scales, recalling the parallel development of their acceptance and the remaining problems. We consider a consequence of the accuracy of time measurement, i.e. the entry of Einstein's general relativity into metrology and its applications. We give some details about the method of calculation and the characteristics of International Atomic Time, and we show how it is disseminated at the ultimate level of precision.

PACS

06.30.Ft Time and frequency

Subjects

Instrumentation and measurement

Dates

Issue 3 (June 2005)

Received 4 February 2005

Published 7 June 2005

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Atomic time-keeping from 1955 to the present
Bernard Guinot and Elisa Felicitas Arias 2005 Metrologia 42 S20

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