skip to main content
DOE Patents title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Method for measuring liquid viscosity and ultrasonic viscometer

Abstract

An ultrasonic viscometer and method for measuring fluid viscosity are provided. Ultrasonic shear and longitudinal waves are generated and coupled to the fluid. Reflections from the generated ultrasonic shear and longitudinal waves are detected. Phase velocity of the fluid is determined responsive to the detected ultrasonic longitudinal waves reflections. Viscosity of the fluid is determined responsive to the detected ultrasonic shear waves reflections. Unique features of the ultrasonic viscometer include the use of a two-interface fluid and air transducer wedge to measure relative signal change and to enable self calibration and the use of a ratio of reflection coefficients for two different frequencies to compensate for environmental changes, such as temperature.

Inventors:
 [1];  [2];  [1];  [2]
  1. (Naperville, IL)
  2. (Downers Grove, IL)
Issue Date:
Research Org.:
Argonne National Laboratory (ANL), Argonne, IL
OSTI Identifier:
869607
Patent Number(s):
5365778
Assignee:
University of Chicago (Chicago, IL) ANL
DOE Contract Number:  
W-31109-ENG-38
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
method; measuring; liquid; viscosity; ultrasonic; viscometer; fluid; provided; shear; longitudinal; waves; generated; coupled; reflections; detected; phase; velocity; determined; responsive; unique; features; two-interface; air; transducer; wedge; measure; relative; signal; change; enable; calibration; ratio; reflection; coefficients; frequencies; compensate; environmental; changes; temperature; ultrasonic shear; longitudinal waves; shear waves; shear wave; measuring fluid; phase velocity; ultrasonic viscometer; longitudinal wave; ultrasonic longitudinal; unique features; fluid viscosity; liquid viscosity; /73/

Citation Formats

Sheen, Shuh-Haw, Lawrence, William P., Chien, Hual-Te, and Raptis, Apostolos C. Method for measuring liquid viscosity and ultrasonic viscometer. United States: N. p., 1994. Web.
Sheen, Shuh-Haw, Lawrence, William P., Chien, Hual-Te, & Raptis, Apostolos C. Method for measuring liquid viscosity and ultrasonic viscometer. United States.
Sheen, Shuh-Haw, Lawrence, William P., Chien, Hual-Te, and Raptis, Apostolos C. Sat . "Method for measuring liquid viscosity and ultrasonic viscometer". United States. https://www.osti.gov/servlets/purl/869607.
@article{osti_869607,
title = {Method for measuring liquid viscosity and ultrasonic viscometer},
author = {Sheen, Shuh-Haw and Lawrence, William P. and Chien, Hual-Te and Raptis, Apostolos C.},
abstractNote = {An ultrasonic viscometer and method for measuring fluid viscosity are provided. Ultrasonic shear and longitudinal waves are generated and coupled to the fluid. Reflections from the generated ultrasonic shear and longitudinal waves are detected. Phase velocity of the fluid is determined responsive to the detected ultrasonic longitudinal waves reflections. Viscosity of the fluid is determined responsive to the detected ultrasonic shear waves reflections. Unique features of the ultrasonic viscometer include the use of a two-interface fluid and air transducer wedge to measure relative signal change and to enable self calibration and the use of a ratio of reflection coefficients for two different frequencies to compensate for environmental changes, such as temperature.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1994},
month = {1}
}

Patent:

Save / Share: