• DocumentCode
    970911
  • Title

    Magnitude and phase in thermal wave imaging

  • Author

    Lehto, A. ; Jaarinen, J. ; Tiusanen, T. ; Jokinen, Markku ; Luukkala, M.

  • Author_Institution
    University of Helsinki, Department of Physics, Helsinki, Finland
  • Volume
    17
  • Issue
    11
  • fYear
    1981
  • Firstpage
    364
  • Lastpage
    365
  • Abstract
    In thermal wave imaging on solids both magnitude and phase angle are used. However, a comparison between theoretical and experimental results is lacking even for the simple case of an air-backed metal plate. In the letter we present measurements and point out the difference between sinusoidal and square-wave intensity modulation.
  • Keywords
    infrared imaging; thickness measurement; 10Hz periodic heating; IR detectors; air backed metal plate case; experimental results; intensity modulated laser light; photothermal signal; sinusoidal modulation; square-wave intensity modulation; theoretical results; thermal wave imaging;
  • fLanguage
    English
  • Journal_Title
    Electronics Letters
  • Publisher
    iet
  • ISSN
    0013-5194
  • Type

    jour

  • DOI
    10.1049/el:19810255
  • Filename
    4245725
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=970911