Time and frequency measurement at NIST: the first 100 years
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Open Access
- 13 November 2002
- conference paper
- Published by Institute of Electrical and Electronics Engineers (IEEE)
- No. 10756787,p. 4-17
Abstract
During this, the NIST Centennial Year, I look back on the first 100 years and summarize NIST work on time and frequency measurement, a topic of some prominence from the early years of the institution. Initial work at NIST (then NBS, the National Bureau of Standards) focused primarily on frequency standards needed to support the control of broadcast frequencies in the early days of radio. The Time and Frequency Division was not created until 1967, by which time a number of primary atomic frequency standards had already been developed, and it was clear that a broader program in this field was needed. This paper describes a variety of programs including the development of primary frequency standards, the international coordination of standards, statistical techniques for characterizing noise, dissemination methods, and methods for measuring optical frequency.Keywords
This publication has 50 references indexed in Scilit:
- Laser-Cooled Mercury Ion Frequency StandardPhysical Review Letters, 1998
- Precision and accuracy of GPS time transferIEEE Transactions on Instrumentation and Measurement, 1993
- The NIST optically pumped cesium frequency standardIEEE Transactions on Instrumentation and Measurement, 1991
- rf spectroscopy in an atomic fountainPhysical Review Letters, 1989
- Laser Deceleration of an Atomic BeamPhysical Review Letters, 1982
- The method of successive oscillatory fieldsPhysics Today, 1980
- NBS time to the Western Hemisphere by satelliteRadio Science, 1979
- NBS-4 and NBS-6: The NBS Primary Frequency StandardsMetrologia, 1977
- Frequency of Cesium in Terms of Ephemeris TimePhysical Review Letters, 1958
- A new determination of the ratio of the electromagnetic to the electrostatic unit of electricityBulletin of the Bureau of Standards, 1907