DocumentCode
1228855
Title
Combined sapphire oscillator-hydrogen maser frequency standard
Author
Luiten, A.N. ; Blair, D.G.
Volume
30
Issue
25
fYear
1994
fDate
12/8/1994 12:00:00 AM
Firstpage
2119
Lastpage
2120
Abstract
An attempt has been made to create a superior frequency standard by combining the excellent short term frequency stability of a sapphire oscillator with the long-term stability of a hydrogen maser. The combined frequency standard closely follows the hydrogen maser in the long term and has good stability at short integration times, although it falls short of the actual sapphire oscillator stability due to phase noise in the hydrogen maser output signal
Keywords
frequency measurement; frequency stability; hydrogen; masers; measurement standards; oscillators; phase noise; sapphire; Al2O3; H2; H2 maser; combined frequency standard; frequency stability; long-term stability; phase noise; sapphire oscillator; short term stability;
fLanguage
English
Journal_Title
Electronics Letters
Publisher
iet
ISSN
0013-5194
Type
jour
DOI
10.1049/el:19941457
Filename
350158
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