• DocumentCode
    2865021
  • Title

    Differential phase contrast acoustic microscopy

  • Author

    Routh, H.F. ; Pusateri, T.L. ; Nikoonahad, M.

  • Author_Institution
    Bio-Imaging Res. Inc., Lincolnshire, IL, USA
  • fYear
    1989
  • fDate
    3-6 Oct 1989
  • Firstpage
    817
  • Abstract
    The acoustic counterpart of the Nomarski differential-phase optical microscope is described and demonstrated at 50 MHz. A phase sensitivity of 190 mV/degree with a noise floor at 10 mV in a 1 kHz bandwidth was measured for this instrument. This suggests that the minimum measurable height with this system is 22 Å. A variety of images obtained from metal surfaces and composite materials is presented
  • Keywords
    acoustic microscopes; acoustic microscopy; bandwidth; composite materials; metal surfaces; minimum measurable height; noise floor; phase sensitivity; Acoustic measurements; Acoustic noise; Bandwidth; Instruments; Noise measurement; Optical microscopy; Optical noise; Optical sensors; Phase measurement; Phase noise;
  • fLanguage
    English
  • Publisher
    ieee
  • Conference_Titel
    Ultrasonics Symposium, 1989. Proceedings., IEEE 1989
  • Conference_Location
    Montreal, Que.
  • Type

    conf

  • DOI
    10.1109/ULTSYM.1989.67101
  • Filename
    67101
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=2865021