• DocumentCode
    973682
  • Title

    Interferometric fibre displacement/strain sensor based on source coherence synthesis

  • Author

    Berkoff, T.A. ; Kersey, A.D.

  • Author_Institution
    Sachs. Freeman Associates, Landover, MD, USA
  • Volume
    26
  • Issue
    7
  • fYear
    1990
  • fDate
    3/29/1990 12:00:00 AM
  • Firstpage
    452
  • Lastpage
    453
  • Abstract
    A displacement sensing technique is described, based on the use of a laser source frequency modulated at a relatively high rate to induce visibility modulation in the ´baseband´ interference signal derived from a two-beam interferometer. Feedback control of the laser modulation, to lock the visibility to a minimum, is demonstrated.
  • Keywords
    displacement measurement; frequency modulation; light interferometry; measurement by laser beam; optical modulation; strain measurement; displacement sensing technique; interferometric fibre displacement sensor; interferometric fibre strain sensor; laser modulation; laser source frequency modulated; source coherence synthesis; two-beam interferometer; visibility modulation;
  • fLanguage
    English
  • Journal_Title
    Electronics Letters
  • Publisher
    iet
  • ISSN
    0013-5194
  • Type

    jour

  • DOI
    10.1049/el:19900293
  • Filename
    50224
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=973682