TERMIUM Plus®
The Government of Canada’s terminology and linguistic data bank.
INTERNATIONAL ATOMIC TIME [1 record]
Record 1 - internal organization data 2020-01-21
Record 1, English
Record 1, Subject field(s)
- Metrology and Units of Measure
- Atomic Physics
Record 1, Main entry term, English
- International Atomic Time
1, record 1, English, International%20Atomic%20Time
correct
Record 1, Abbreviations, English
- TAI 2, record 1, English, TAI
correct
Record 1, Synonyms, English
Record 1, Textual support, English
Record number: 1, Textual support number: 1 DEF
[A] high-precision atomic coordinate time standard based on the notional passage of proper time on Earth's geoid. 3, record 1, English, - International%20Atomic%20Time
Record number: 1, Textual support number: 1 CONT
International Atomic Time (TAI) is a time scale that uses the combined output of some 400 highly precise atomic clocks. It provides the exact speed at which our clocks tick. 4, record 1, English, - International%20Atomic%20Time
Record 1, French
Record 1, Domaine(s)
- Unités de mesure et métrologie
- Physique atomique
Record 1, Main entry term, French
- temps atomique international
1, record 1, French, temps%20atomique%20international
correct, masculine noun
Record 1, Abbreviations, French
- TAI 2, record 1, French, TAI
correct
Record 1, Synonyms, French
Record 1, Textual support, French
Record number: 1, Textual support number: 1 CONT
La diffusion du TAI n'a jamais été directe; de fait, il fournit une référence de fréquence mais n'a aucune utilité pratique pour mesurer les intervalles de temps. 3, record 1, French, - temps%20atomique%20international
Record number: 1, Textual support number: 1 OBS
La coordonnée de repérage temporel établie par le Bureau International de l'Heure est fournie non plus par le mouvement de la terre mais par les indications d'horloges atomiques, la seconde étant devenue «la durée de 9 192 631 770 périodes de la radiation correspondant à la transition entre deux niveaux hyperfins de l'état fondamental de l'atome de césium 133». 4, record 1, French, - temps%20atomique%20international
Record 1, Spanish
Record 1, Campo(s) temático(s)
- Metrología y unidades de medida
- Física atómica
Record 1, Main entry term, Spanish
- tiempo atómico internacional
1, record 1, Spanish, tiempo%20at%C3%B3mico%20internacional
masculine noun
Record 1, Abbreviations, Spanish
- TAI 1, record 1, Spanish, TAI
masculine noun
Record 1, Synonyms, Spanish
Record 1, Textual support, Spanish
Record number: 1, Textual support number: 1 DEF
[Tiempo definido según la] escala de tiempo atómico, definida en su sistema de referencia geocéntrico, tomando como unidad el segundo atómico, determinado sobre el geoide en rotación. 1, record 1, Spanish, - tiempo%20at%C3%B3mico%20internacional
Record number: 1, Textual support number: 1 OBS
A partir del 10 de enero de 1958, la diferencia entre el tiempo atómico internacional y el tiempo de efemérides (TE) es de 32 184s. Se suprimen los saltos de tiempo representados por los segundos intercalares. 1, record 1, Spanish, - tiempo%20at%C3%B3mico%20internacional
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