bn:03139710n
Noun Concept
Categories: Electronics standards, Caesium, Atomic clocks, Wikipedia articles incorporating text from the Federal Standard 1037C
EN
caesium standard  caesium atomic clock  cesium clock  cesium standard
EN
The caesium standard is a primary frequency standard in which the photon absorption by transitions between the two hyperfine ground states of caesium-133 atoms is used to control the output frequency. Wikipedia
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EN
The caesium standard is a primary frequency standard in which the photon absorption by transitions between the two hyperfine ground states of caesium-133 atoms is used to control the output frequency. Wikipedia
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