这款铷原子钟,atomic clock是全球基于超冷铷原子技术的商业化冷原子钟,它是欧洲15年来的科研结晶,符合LNE-SYRTE全球时间标准。这款铷原子钟基于激光操纵冷原子技术,操作原理基于微波问诊大原子云技术,制冷到数个uk的温度,这样原子介质表现出的稳定性,不受外界环境影响。
Washington, Aug 27 (ANI): A caesium fountain clock that keeps the United Kingdom's atomic time is now the most accurate long-term timekeeper in the world. UK's atomic clock is 'world's most accurate long-term timekeeper' International Atomic Time is calculated by the International Bureau of...
International Atomic Time The time reference scale established by the Bureau International des Poids et Mesures on the basis of atomic clock readings from various laboratories around the world. Also called TAI. Dictionary of Military and Associated Terms. US Department of Defense 2005. ...
Older atomic clocks were based upon beams of cesium atoms, with the atoms moving at several hundred meters per second. The most modern atomic clock at NIST uses what is called an atomic fountain. Figure 2 shows a general schematic of the clock (3,4). Initially, a cloud of cesium vapor ...
Atomic resonance is so sharp it can tell if a standard quartz crystal clock deviates from the correct time by less than 1 millionth of a billion, or 1015. 【Download】Electric Drive Control with Adaptive Computing To achieve such high timing resolution, atomic clocks make use of ultra-narrow ...
Related to atomic clock:Doomsday Clock Category filter: AcronymDefinition ACAdult Contemporary(radio format) ACArea Code ACAlternating Current(electricity; physics) ACAuthor's Correction ACAnte Cibum(Latin: Before Meals) ACAir Conditioning/Conditioner ...
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However, the theory of relativity prescribes that the passage of time is not absolute, but is affected by an observer’s reference frame. Consequently, clock measurements exhibit sensitivity to relative velocity, acceleration and gravity potential. Here we demonstrate local optical clock measurements ...
in 1955 at the National Physical Laboratory in the UK.[3] Calibration of the caesium standard atomic clock was carried out by the use of the astronomical time scale ephemeris time (ET).[4] This led to the internationally agreed definition of the latest SI second being based on atomic time...
Optical atomic clocks 1 , 2 ^{1,2} use electronic energy levels to precisely keep track of time. A clock based on nuclear energy levels promises a next-generation platform for precision metrology and fundamental physics studies. Thorium-229 nuclei exhibit a uniquely low energy nuclear transition...