Measuring Frequency Changes due to Microwave Power Variations as a Function of C-field Setting in a Rubidium Frequency Standard

Abstract

It has been shown in previous studies that in some cesium frequency standards there exist certain C-field settings that minimize frequency changes that are due to variations in microwave power. In order to determine whether similar results could be obtained with rubidium (Rb) frequency standards (clocks), we performed a similar study, using a completely automated measurement system, on a commercial Rb standard. From our measurements we found that changing the microwave power to the filter cell resulted in significant changes in frequency, and that the magnitude of these frequency changes at low C-field levels went to zero and decreased as the C-field was increased.

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Document Details

Document Type
Technical Report
Publication Date
Dec 01, 1991
Accession Number
ADA512428

Entities

People

  • E. B. Sarosy
  • F. J. Voit
  • S. K. Karuza
  • W. A. Johnson

Organizations

  • Air Force Systems Command

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Air Force
  • Air Force Facilities
  • Cells
  • Clocks
  • Counters
  • Data Storage Systems
  • Frequency
  • Frequency Shift
  • Frequency Standards
  • Measurement
  • Microwaves
  • Power Levels
  • Rubidium
  • Space Systems
  • Standards
  • Time Intervals
  • Transitions

Readers

  • Plasma Physics.
  • Positioning, Navigation, and Timing (PNT) Technology.