DocumentCode
1081170
Title
Atomic clock accuracy needed
Author
Novick, Andrew N.
Author_Institution
Dept. of Electr. Eng., Colorado Univ., Boulder, CO, USA
Volume
13
Issue
2
fYear
1994
fDate
4/1/1994 12:00:00 AM
Firstpage
8
Lastpage
10
Abstract
The National Institute of Standards and Technology (NIST), formerly The National Bureau of Standards, has been working with atomic clocks for over forty years. They have come a long way since they developed the world´s first atomic clock. NIST has also introduced NIST-7, one of the most accurate clocks to date and is expected, after full evaluation, to show an accuracy of one part in 10/sup 14/, equivalent to one second in three million years. Atomic clocks are based on natural resonances in atoms, which involve highly stable and periodic events at very high frequencies.<>
Keywords
atomic clocks; time measurement; NIST-7; National Institute of Standards and Technology; The National Bureau of Standards; accuracy; atomic clocks; atoms; natural resonances; Atomic clocks; Atomic measurements; History; Humans; Magnetic resonance; NIST; Resonant frequency; Tides; Time measurement; Timing;
fLanguage
English
Journal_Title
Potentials, IEEE
Publisher
ieee
ISSN
0278-6648
Type
jour
DOI
10.1109/45.283880
Filename
283880
Link To Document