time and frequency standard

time and frequency standard
A reference value of time and time interval. Standards of time and frequency are determined by astronomical observations and by the operation of atomic clocks and other advanced timekeeping instruments. They are disseminated by transport of clocks, radio transmissions, satellite relay, and other means.

Military dictionary. 2000.

Игры ⚽ Нужна курсовая?

Look at other dictionaries:

  • Time and frequency transfer — describes mechanisms for comparing measurements of time and frequency from one location to another. The technique is commonly used for creating and distributing standard time scales such as International Atomic Time (TAI).Examples of time and… …   Wikipedia

  • Time and Frequency Standards Laboratory — The Time and Frequency Standards Laboratory is a part of the National Physical Laboratory in New Delhi which maintains and calibrates the Indian Standard Time.Features of the Time and Frequency Standards Lab include: * Four caesium and rubidium… …   Wikipedia

  • Standard time and frequency signal service — The Standard Time and Frequency Signal (STFS) is a service available in the United States (centered at 10.000MHz? .jg) which provides standard time and frequency signals, broadcast on very precise carrier frequencies by the U.S. Naval Observatory …   Wikipedia

  • Two-Way Satellite Time and Frequency Transfer — (TWSTFT) is a high precision long distance time and frequency transfer mechanism used between time bureaux to determine and distribute time and frequency standards. As of 2003 TWSTFT is being evaluated as an alternative to be used by the Bureau… …   Wikipedia

  • Frequency standard — A frequency standard is a stable oscillator used for frequency calibration or reference. A frequency standard generates a fundamental frequency with a high degree of accuracy and precision. Harmonics of this fundamental frequency are used to… …   Wikipedia

  • Time in physics — In physics, the treatment of time is a central issue. It has been treated as a question of geometry. One can measure time and treat it as a geometrical dimension, such as length, and perform mathematical operations on it. It is a scalar quantity… …   Wikipedia

  • Time from NPL — Map showing the location of the Anthorn VLF transmitter within Cumbria …   Wikipedia

  • Australian Fair Pay and Conditions Standard — The Australian Fair Pay and Conditions Standard (the Standard) is a set of five minimum statutory entitlements for wages and conditions that was introduced as part of the Howard Government s WorkChoices amendments to Australian labour law. It… …   Wikipedia

  • Time in Taiwan — National Standard Time National Standard Time digital clock of Bureau of Standards, Metrology and Inspection (BSMI), Taiwan. Traditional Chinese …   Wikipedia

  • Standard Mandarin — Standard Mandarin, also known as Standard Spoken Chinese, is the official modern Chinese spoken language used in mainland China and Taiwan, and is one of the four official languages of Singapore.The phonology of Standard Mandarin is based on the… …   Wikipedia

Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”