Ultrasonic fluid flow measurement method and apparatus
Abstract
An apparatus for measuring the flow of a fluid in a pipe using ultrasonic waves. The apparatus comprises an ultrasonic generator, a lens for focusing the sound energy produced by the generator, and means for directing the focused energy into the side of the pipe through an opening and in a direction close to parallel to the long axis of the pipe. A cone carries the sound energy to the lens from the generator. Depending on the choice of materials, there may be a quarter-wave, acoustic impedance matching section between the generator and the cone to reduce the reflections of energy at the cone boundary. The lens material has an acoustic impedance similar to that of the cone material but a different sonic velocity so that the lens can converge the sound waves in the fluid. A transition section between the lens and the fluid helps to couple the energy to the fluid and assures it is directed as close to parallel to the fluid flow direction as possible.
- Inventors:
-
- 108 Independent Blvd., Aiken, SC 29801
- Issue Date:
- Research Org.:
- Savannah River Site (SRS), Aiken, SC (United States)
- OSTI Identifier:
- 868952
- Patent Number(s):
- 5251490
- Assignee:
- Kronberg, James W. (108 Independent Blvd., Aiken, SC 29801)
- Patent Classifications (CPCs):
-
G - PHYSICS G01 - MEASURING G01F - MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL
G - PHYSICS G01 - MEASURING G01N - INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- DOE Contract Number:
- AC09-89SR18035
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- ultrasonic; fluid; flow; measurement; method; apparatus; measuring; pipe; waves; comprises; generator; lens; focusing; sound; energy; produced; means; directing; focused; direction; close; parallel; axis; cone; carries; depending; choice; materials; quarter-wave; acoustic; impedance; matching; section; reduce; reflections; boundary; material; similar; sonic; velocity; converge; transition; helps; couple; assures; directed; ultrasonic wave; acoustic impedance; flow direction; sound waves; apparatus comprises; fluid flow; ultrasonic waves; ultrasonic fluid; energy produced; transition section; impedance matching; ultrasonic generator; apparatus comprise; sonic velocity; measurement method; sound energy; flow measurement; sound wave; /73/
Citation Formats
Kronberg, James W. Ultrasonic fluid flow measurement method and apparatus. United States: N. p., 1993.
Web.
Kronberg, James W. Ultrasonic fluid flow measurement method and apparatus. United States.
Kronberg, James W. Fri .
"Ultrasonic fluid flow measurement method and apparatus". United States. https://www.osti.gov/servlets/purl/868952.
@article{osti_868952,
title = {Ultrasonic fluid flow measurement method and apparatus},
author = {Kronberg, James W},
abstractNote = {An apparatus for measuring the flow of a fluid in a pipe using ultrasonic waves. The apparatus comprises an ultrasonic generator, a lens for focusing the sound energy produced by the generator, and means for directing the focused energy into the side of the pipe through an opening and in a direction close to parallel to the long axis of the pipe. A cone carries the sound energy to the lens from the generator. Depending on the choice of materials, there may be a quarter-wave, acoustic impedance matching section between the generator and the cone to reduce the reflections of energy at the cone boundary. The lens material has an acoustic impedance similar to that of the cone material but a different sonic velocity so that the lens can converge the sound waves in the fluid. A transition section between the lens and the fluid helps to couple the energy to the fluid and assures it is directed as close to parallel to the fluid flow direction as possible.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Fri Jan 01 00:00:00 EST 1993},
month = {Fri Jan 01 00:00:00 EST 1993}
}