• DocumentCode
    1141551
  • Title

    Instrumentation for time-resolved measurement of ultrasound velocity deviation

  • Author

    Anderson, Wallace L. ; Jensen, Charles E.

  • Author_Institution
    Dept. of Electr. Eng., Houston Univ., TX, USA
  • Volume
    38
  • Issue
    4
  • fYear
    1989
  • fDate
    8/1/1989 12:00:00 AM
  • Firstpage
    913
  • Lastpage
    916
  • Abstract
    An inexpensive digital data acquisition unit is described which has the capability to record ultrasound velocity variations up to 20 m/s in ultrasound velocity at rates up to 1000 readings per second. No calibration procedures are required. The intrinsic velocity resolution of the unit is less than 1 part in 106; however, the short-term frequency instability of the phase-locked loop instrument used as a velocity sensor limits the overall resolution to 1 part in 10 5
  • Keywords
    data acquisition; digital instrumentation; frequency stability; phase-locked loops; ultrasonic velocity measurement; digital data acquisition; digital instrumentation; frequency instability; phase-locked loop instrument; time-resolved measurement; ultrasound velocity deviation; velocity sensor; Frequency conversion; Frequency measurement; Instruments; Phase locked loops; Pulse measurements; Sampling methods; Ultrasonic imaging; Ultrasonic variables measurement; Velocity measurement; Voltage-controlled oscillators;
  • fLanguage
    English
  • Journal_Title
    Instrumentation and Measurement, IEEE Transactions on
  • Publisher
    ieee
  • ISSN
    0018-9456
  • Type

    jour

  • DOI
    10.1109/19.31013
  • Filename
    31013
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=1141551