• DocumentCode
    1170933
  • Title

    A Precision Tuning Fork Frequency Standard

  • Author

    Norrman, E.

  • Author_Institution
    5710 21st Avenue, Brooklyn, N.Y.; Formerly RCA-Victor Co., Camden, N.J.
  • Volume
    20
  • Issue
    11
  • fYear
    1932
  • Firstpage
    1715
  • Lastpage
    1731
  • Abstract
    The use of tuning forks as audio-frequency standards is treated. Two frequency standards employing alloy forks and one employing a steel fork were checked against each other by apparatus allowing a continuous and simultaneous checking of all three forks. Suitable circuits and requirements for high precision and constancy of output are outlined. One of the frequency standards and a method of obtaining a high power output is described.
  • Keywords
    Circuit optimization; Clocks; Frequency measurement; Helium; Iron alloys; Measurement standards; Stability; Steel; Temperature; Vibrations;
  • fLanguage
    English
  • Journal_Title
    Radio Engineers, Proceedings of the Institute of
  • Publisher
    ieee
  • ISSN
    0731-5996
  • Type

    jour

  • DOI
    10.1109/JRPROC.1932.227693
  • Filename
    1685042
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=1170933