• DocumentCode
    1009141
  • Title

    Optical fibre Faraday rotation current sensor with closed-loop operation

  • Author

    Kersey, A.D. ; Dandridge, A.

  • Author_Institution
    Naval Research Laboratory, Washington, USA
  • Volume
    21
  • Issue
    11
  • fYear
    1985
  • Firstpage
    464
  • Lastpage
    466
  • Abstract
    A novel closed-loop fibre-optic current sensor based on the Faraday effect is described which maintains a constant sensitivity to AC currents in the presence of large quasi-DC and low-frequency current fluctuations. A Verdet constant of 2.55×10¿6 rad/A (at 0.83 ¿m) is reported for the fibre used.
  • Keywords
    Faraday effect; electric current measurement; fibre optic sensors; light interferometers; AC currents; DC currents; Faraday effect; Michelson interferometer; closed-loop operation; constant sensitivity; current sensor; feedback stabilisation; fibre optic sensors; low-frequency current fluctuations; magneto-optical effects;
  • fLanguage
    English
  • Journal_Title
    Electronics Letters
  • Publisher
    iet
  • ISSN
    0013-5194
  • Type

    jour

  • DOI
    10.1049/el:19850329
  • Filename
    4251237
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=1009141