System and technique for characterizing fluids using ultrasonic diffraction grating spectroscopy
Abstract
A system for determining a property of a fluid based on ultrasonic diffraction grating spectroscopy includes a diffraction grating on a solid in contact with the fluid. An interrogation device delivers ultrasound through the solid and a captures a reflection spectrum from the diffraction grating. The reflection spectrum including a diffraction order equal to zero exhibits a peak whose location is used to determine speed of sound in the fluid. A separate measurement of the acoustic impedance is combined with the determined speed of sound to yield a measure of fluid density. A system for determining acoustic impedance includes an ultrasonic transducer on a first surface of a solid member, and an opposed second surface of the member is in contact with a fluid to be monitored. A longitudinal ultrasonic pulse is delivered through the solid member, and a multiplicity of pulse echoes caused by reflections of the ultrasonic pulse between the solid-fluid interface and the transducer-solid interface are detected. The decay rate of the detected echo amplitude as a function of echo number is used to determine acoustic impedance.
- Inventors:
- Issue Date:
- Research Org.:
- Pacific Northwest National Laboratory (PNNL), Richland, WA (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1175310
- Patent Number(s):
- 6877375
- Application Number:
- 10/430,474
- Assignee:
- Battelle Memorial Institute (Richland, WA)
- Patent Classifications (CPCs):
-
G - PHYSICS G01 - MEASURING G01N - INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- DOE Contract Number:
- AC06-76RL01830
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 47 OTHER INSTRUMENTATION
Citation Formats
Greenwood, Margaret S. System and technique for characterizing fluids using ultrasonic diffraction grating spectroscopy. United States: N. p., 2005.
Web.
Greenwood, Margaret S. System and technique for characterizing fluids using ultrasonic diffraction grating spectroscopy. United States.
Greenwood, Margaret S. Tue .
"System and technique for characterizing fluids using ultrasonic diffraction grating spectroscopy". United States. https://www.osti.gov/servlets/purl/1175310.
@article{osti_1175310,
title = {System and technique for characterizing fluids using ultrasonic diffraction grating spectroscopy},
author = {Greenwood, Margaret S.},
abstractNote = {A system for determining a property of a fluid based on ultrasonic diffraction grating spectroscopy includes a diffraction grating on a solid in contact with the fluid. An interrogation device delivers ultrasound through the solid and a captures a reflection spectrum from the diffraction grating. The reflection spectrum including a diffraction order equal to zero exhibits a peak whose location is used to determine speed of sound in the fluid. A separate measurement of the acoustic impedance is combined with the determined speed of sound to yield a measure of fluid density. A system for determining acoustic impedance includes an ultrasonic transducer on a first surface of a solid member, and an opposed second surface of the member is in contact with a fluid to be monitored. A longitudinal ultrasonic pulse is delivered through the solid member, and a multiplicity of pulse echoes caused by reflections of the ultrasonic pulse between the solid-fluid interface and the transducer-solid interface are detected. The decay rate of the detected echo amplitude as a function of echo number is used to determine acoustic impedance.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2005},
month = {4}
}
Works referenced in this record:
Measurement of the periodicity of internal surfaces by ultrasonic testing
journal, October 1982
- Billy, M. de; Quentin, G.
- Journal of Physics D: Applied Physics, Vol. 15, Issue 10
Ultrasonic anomalies in the spectrum of acoustic waves diffracted by periodic interfaces
journal, July 1982
- Jungman, Alain; Adler, Laszlo; Quentin, Gerard
- Journal of Applied Physics, Vol. 53, Issue 7