atomic clocks

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atomic clock
atom saati
atomic clock
atomik saat
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plural form of atomic clock

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atomic clock
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
atomic clock
A high-stability oscillator based on atomic transitions Three types are commonly used in radio astronomy: The cesium-beam-tube resonator The rubidium-gas-cell resonator The atomic hydrogen maser oscillator Cesium-beam-tube resonators are used as the standard for atomic time because their absolute frequencies are relatively insensitive to environmental factors For details, see the U S Naval Observatory's WWW Page on Cesium Atomic Clocks at http: //tycho usno navy mil/cesium html Rubidium-gas-cell resonators and hydrogen masers are more commonly used as local oscillators in VLBI experiments because they provide more stable signals when their environment is carefully controlled
atomic clock
An atomic clock is an extremely accurate timekeeping device regulated by the natural regular oscillations of an atom or molecule An atomic clock powered by a hydrogen atom (maser) is accurate to 1 part in 2 quadrillion A cesium atom powered clock has an error of about one second in one million years GPS satellites carry multiple atomic clocks, regulated by these precise atomic vibrations, to ensure accuracy The GPS Master Control Station uses cesium clocks and a hydrogen maser clock
atomic clock
An incredibly accurate clock using the regular vibration of atoms as a metronome Atomic clocks lose only one second every three hundred thousand years or so
atomic clock
highly accurate electronic clock regulated by the vibration frequencies of particular atoms or molecules
atomic clock
a clock whose frequency is maintained using electromagnetic waves that are emitted or absorbed in the transition of atomic particles between energy states The frequency of an atomic transition is very precise, resulting in very stable clocks A cesium clock has an error of about one second in one million years For redundancy purposes, GPS satellites carry multiple atomic clocks GPS satellites have used rubidium clocks as well as cesium clocks The GPS Master Control Station uses cesium clocks and a hydrogen maser clock
atomic clock
a timepiece that derives its time scale from the vibration of atoms or molecules
atomic clock
An extremely precise timekeeping device regulated in correspondence with a characteristic invariant frequency of an atomic or molecular system
atomic clock
A clock whose frequency of operation is controlled by the frequency of an atomic process Beginners Guides to Measurement - Atomic Timekeeping Atomic clocks
atomic clocks

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    a·to·mic clocks

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    ıtämîk kläks

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    /əˈtämək ˈkläks/ /əˈtɑːmɪk ˈklɑːks/