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Recent progress in the NASA-Goddard Space Flight Center atomic hydrogen standards programAt NASA Goddard Space Flight Center and through associated contractors, a broad spectrum of work is being carried out to develop improved hydrogen maser frequency standards for field use, improved experimental hydrogen maser frequency standards, and improved frequency and time distribution and measurement systems for hydrogen maser use. Recent progress in the following areas is reported: results on the Nr masers built by the Applied Physics Laboratory of Johns Hopkins University, the development of a low cost hydrogen maser at Goddard Space Flight Center, and work on a low noise phase comparison system and digitally phase locked crystal oscillator called the distribution and measurement system.
Document ID
19810018951
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Reinhardt, V. S. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Date Acquired
August 11, 2013
Publication Date
March 1, 1981
Publication Information
Publication: Proc. of the 12th Ann. Precise Time and Time Interval Appl. and Planning Meeting
Subject Category
Instrumentation And Photography
Accession Number
81N27489
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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IDRelationTitle19810018929Collected WorksProceedings of the 12th Annual Precise Time and Time Interval (PTTI) Applications and Planning Meeting
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