• DocumentCode
    1219359
  • Title

    An Incremental Phase Shifter and Frequency Modulator for Magnetic Resonance Imaging and Spectroscopy

  • Author

    Jensen, Dye J. ; Delayre, Jean L. ; Narayana, Ponnada A.

  • Author_Institution
    Department of Radiology, University of Texas Medical School
  • Issue
    4
  • fYear
    1987
  • fDate
    4/1/1987 12:00:00 AM
  • Firstpage
    310
  • Lastpage
    313
  • Abstract
    A digitally controlled analog phase shifter is described for the application in magnetic resonance (MR) imaging and spectroscopy. The design is based on a single side band modulator scheme. A phase resolution of 1.4°and a switching time of 400 ns are achieved. The device controls the phase of the intermediate frequency in the MR instrument, and hence can be used over the entire observe frequency range of interest.
  • Keywords
    Amplitude modulation; Frequency modulation; Instruments; Magnetic modulators; Magnetic resonance; Magnetic resonance imaging; Phase modulation; Phase shifters; Pulse modulation; Spectroscopy; Equipment Design; Magnetic Resonance Imaging; Magnetic Resonance Spectroscopy;
  • fLanguage
    English
  • Journal_Title
    Biomedical Engineering, IEEE Transactions on
  • Publisher
    ieee
  • ISSN
    0018-9294
  • Type

    jour

  • DOI
    10.1109/TBME.1987.326047
  • Filename
    4122536
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=1219359