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Title: Method and apparatus for ultrasonic doppler velocimetry using speed of sound and reflection mode pulsed wideband doppler

Abstract

According to the present invention, a method and apparatus rely upon tomographic measurement of the speed of sound and fluid velocity in a pipe. The invention provides a more accurate profile of velocity within flow fields where the speed of sound varies within the cross-section of the pipe. This profile is obtained by reconstruction of the velocity profile from the local speed of sound measurement simultaneously with the flow velocity. The method of the present invention is real-time tomographic ultrasonic Doppler velocimetry utilizing a to plurality of ultrasonic transmission and reflection measurements along two orthogonal sets of parallel acoustic lines-of-sight. The fluid velocity profile and the acoustic velocity profile are determined by iteration between determining a fluid velocity profile and measuring local acoustic velocity until convergence is reached.

Inventors:
 [1];  [2]
  1. Kennewick, WA
  2. Richland, WA
Publication Date:
Research Org.:
Battelle Memorial Institute, Columbus, OH (United States)
OSTI Identifier:
873010
Patent Number(s):
US 6067861
Assignee:
Battelle Memorial Institute (Richland, WA)
DOE Contract Number:  
AC06-76RL01830
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
method; apparatus; ultrasonic; doppler; velocimetry; speed; sound; reflection; mode; pulsed; wideband; according; rely; tomographic; measurement; fluid; velocity; pipe; provides; accurate; profile; flow; fields; varies; cross-section; obtained; reconstruction; local; simultaneously; real-time; utilizing; plurality; transmission; measurements; orthogonal; sets; parallel; acoustic; lines-of-sight; determined; iteration; determining; measuring; convergence; reached; velocity profile; fluid velocity; flow field; flow velocity; acoustic velocity; mode pulsed; ultrasonic transmission; flow fields; doppler velocimetry; sound measurement; /73/367/600/

Citation Formats

Shekarriz, Alireza, and Sheen, David M. Method and apparatus for ultrasonic doppler velocimetry using speed of sound and reflection mode pulsed wideband doppler. United States: N. p., 2000. Web.
Shekarriz, Alireza, & Sheen, David M. Method and apparatus for ultrasonic doppler velocimetry using speed of sound and reflection mode pulsed wideband doppler. United States.
Shekarriz, Alireza, and Sheen, David M. Sat . "Method and apparatus for ultrasonic doppler velocimetry using speed of sound and reflection mode pulsed wideband doppler". United States. https://www.osti.gov/servlets/purl/873010.
@article{osti_873010,
title = {Method and apparatus for ultrasonic doppler velocimetry using speed of sound and reflection mode pulsed wideband doppler},
author = {Shekarriz, Alireza and Sheen, David M},
abstractNote = {According to the present invention, a method and apparatus rely upon tomographic measurement of the speed of sound and fluid velocity in a pipe. The invention provides a more accurate profile of velocity within flow fields where the speed of sound varies within the cross-section of the pipe. This profile is obtained by reconstruction of the velocity profile from the local speed of sound measurement simultaneously with the flow velocity. The method of the present invention is real-time tomographic ultrasonic Doppler velocimetry utilizing a to plurality of ultrasonic transmission and reflection measurements along two orthogonal sets of parallel acoustic lines-of-sight. The fluid velocity profile and the acoustic velocity profile are determined by iteration between determining a fluid velocity profile and measuring local acoustic velocity until convergence is reached.},
doi = {},
url = {https://www.osti.gov/biblio/873010}, journal = {},
number = ,
volume = ,
place = {United States},
year = {2000},
month = {1}
}

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