frequency standard
[/ˈfriːkwənsi ˈstændərd/]
nounpl: frequency standards
padrão de frequência
1. A device or system that generates, maintains, and distributes a precise frequency used as a reference for measuring or controlling other frequencies
The laboratory uses a cesium frequency standard to calibrate their precision instruments.
O laboratório usa um padrão de frequência de césio para calibrar seus instrumentos de precisão.
2. An established frequency value used as a basis for comparison in telecommunications, broadcasting, or scientific measurements
Radio stations must adhere to the frequency standard set by the FCC.
As estações de rádio devem seguir o padrão de frequência estabelecido pela FCC.
3. In metrology, a primary or secondary standard against which other frequency measurements are compared
Atomic clocks serve as frequency standards for global timekeeping systems.
Relógios atômicos servem como padrões de frequência para sistemas de marcação de tempo global.
This is primarily a technical term used in physics, telecommunications, and industrial metrology. In Brazil, it's commonly encountered in academic and technical settings, particularly in engineering and physics laboratories. The term is critical in international standards maintained by organizations like NIST (USA) and BIPM (International Bureau of Weights and Measures), reflecting the global importance of precise frequency measurement in modern technology.
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