英語 での Atomic clocks の使用例とその 日本語 への翻訳
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Atomic clocks have to be used for this process because the signals are travelling at the speed of light.
The time code is generated by atomic clocks on board the GPS satellite, which is beamed to Earth and available for a NTP GPS time server to utilise.
Some 400 atomic clocks around the world contribute to the calculation of International Atomic Time(TAI), one of the
The frequency of resonant transitions can be used as the timekeeper in atomic clocks, but their accuracy and precision is limited by the broadening of lines caused by interactions and collisions between atoms.
The time signal is derived from three atomic clocks installed at the transmitter site, and is based on time standards maintained by the UK's National Physical Laboratory(NPL) in Teddington.
In theory, a nuclear clock based on an optical excitation of a nuclear transition, could be even better than atomic clocks in terms of stability and compactness.
Systems of single or a few trapped ions have been used to demonstrate universal quantum computing algorithms and to search for variations of fundamental constants in precision atomic clocks.
As you would expect, our public NTP service is backed by Google's load balancers and atomic clocks in data centers around the world.
The unit of TT is the SI second, the definition of which is currently based on the caesium atomic clock,[3] but TT is not itself defined by atomic clocks.
The International Atomic Time(TAI) is calculated by Bureau International des Poids et Mesures(BIPM), reading a network of 200 atomic clocks located in institutes laboratories and metrology observatories spread over more than 30 countries worldwide.
This time signal is what satellite navigation systems use to triangulate positioning, but because it is generated by atomic clocks is extremely accurate and precise.
Instead, 18 units of cesium-133 atomic beam type atomic clocks are used to obtain their average, which realizes an accuracy of ten to the power minus 15(1 second in 30 million years).
The GNSS satellites are equipped with very precise atomic clocks. This means that by using the GNSS receiver it is possible to acquire Coordinated Universal Time(UTC), which is the world's high accuracy absolute time.
Atomic clocks available in respective countries have been advancing, there is a possibility that the definition will be revised in 2020s depending on the degree of the advance.
Enter atomic clocks, some of which are so precise that they would not gain or lose a second even if they ran for the next 300 million years.
The satellites carry atomic clocks and constantly broadcast the precise time according to their own clock, along with administrative information including the orbital elements of their own motion, as determined by a set of ground-based observatories.
As the satellites used for satellite positioning are equipped with atomic clocks, the information they provide includes highly precise time information.
In 1972, by international agreement, it was decided to let atomic clocks run independently of the Earth and then coordinate the two.
Highly precise atomic clocks, which are the outcomes of such research, are indeed the key technologies that support our modern society, such as the navigation with GPS and synchronization of high-speed communication networks.