Clocks and oscillators

Atomic clock

Name: Daylight bv
Address: Brusselsesteenweg 715, Gentbrugge, 9050, BE
Telephone: +32 9 230 54 00
Price range: $$$

An atomic clock uses the very constant transition frequency of atoms as its time base. The SI second is even defined via caesium-133: 9,192,631,770 oscillations correspond to exactly one second.

Common types are caesium, rubidium and the hydrogen maser. Atomic clocks form the basis of TAI and UTC.

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