atomic clock

atomic clock
a) An extremely accurate reference clock whose operation is based on an atomic process, typically the frequency of electromagnetic radiation associated with a specified energy-level transition in an element such as cesium.

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  • atomic clock — n. an extremely accurate clock whose precision depends upon the very constant frequency at which atoms (or molecules) of certain substances, as of cesium, rubidium, or ammonia, absorb or emit electromagnetic radiation …   English World dictionary

  • Atomic clock — Nuclear clock redirects here. For the clock as a measure for risk of catastrophic destruction, see Doomsday Clock. For a clock updated by radio signals (commonly but inaccurately called an atomic clock ), see Radio clock. For the album by Zion I …   Wikipedia

  • atomic clock — an extremely accurate electronic clock regulated by the resonance frequency of atoms or molecules of certain substances, as cesium. [1935 40] * * * ▪ instrument       type of clock that uses certain resonance frequencies of atoms (usually cesium… …   Universalium

  • atomic clock — noun a timepiece that derives its time scale from the vibration of atoms or molecules • Hypernyms: ↑timepiece, ↑timekeeper, ↑horologe • Hyponyms: ↑ammonia clock, ↑caesium clock * * * noun, pl ⋯ clocks [count] : a special kind of clock …   Useful english dictionary

  • atomic clock — atominis laikrodis statusas T sritis fizika atitikmenys: angl. atomic clock; atomic timing device vok. Atomuhr, f rus. атомные часы pranc. horloge atomique, f …   Fizikos terminų žodynas

  • atomic clock — atominis laikrodis statusas T sritis Standartizacija ir metrologija apibrėžtis Labai tikslus elektroninis laiko matuoklis. Atominio laikrodžio veikimas kontroliuojamas kai kurių medžiagų (amoniako, cezio) atomų molekulių savaisiais virpesiais.… …   Penkiakalbis aiškinamasis metrologijos terminų žodynas

  • atomic clock — atominis laikrodis statusas T sritis Standartizacija ir metrologija apibrėžtis Laikrodis, kuriame laiko masteliui sudaryti naudojami atomų virpesiai. atitikmenys: angl. atomic clock vok. Atomuhr, f rus. атомные часы, m pranc. horloge atomique, f …   Penkiakalbis aiškinamasis metrologijos terminų žodynas

  • Atomic Clock Ensemble in Space — is a project lead by the European Space Agency which will place an ultra stable atomic clock on the International Space Station. Operation in the microgravity environment of the ISS will provide a stable and accurate time base for different areas …   Wikipedia

  • Atomic Clock Ensemble in Space — (ACES) est un projet mené par l Agence spatiale européenne qui placera une horloge atomique ultra stable sur la Station spatiale internationale. Son fonctionnement dans l environnement de microgravité de l ISS va assurer un climat stable et une… …   Wikipédia en Français

  • Atomic Clock Assembly in Space — Externe Forschungsplattformen am Columbus Raumlabor Das Atomic Clock Ensemble in Space (kurz: ACES) ist eines der externen Experimentallabore, die am Columbus Raumlabor, dem Wissenschaftslabor der ESA für die Internationale Raumstation, befestigt …   Deutsch Wikipedia

  • Atomic Clock Ensemble in Space — Externe Forschungsplattformen am Columbus Raumlabor Das Atomic Clock Ensemble in Space (kurz: ACES) ist eines der externen Experimentallabore, die am Columbus Raumlabor, dem Wissenschaftslabor der ESA für die Internationale Raumstation, befestigt …   Deutsch Wikipedia

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