Ultrasonic fluid densitometry and densitometer

Greenwood, Margaret S; Lail, Jason C

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Title: Ultrasonic fluid densitometry and densitometer

Abstract

The present invention is an ultrasonic fluid densitometer that uses a material wedge having an acoustic impedance that is near the acoustic impedance of the fluid, specifically less than a factor of 11 greater than the acoustic impedance of the fluid. The invention also includes a wedge having at least two transducers for transmitting and receiving ultrasonic signals internally reflected within the material wedge. Density of a fluid is determined by immersing the wedge into the fluid and measuring reflection of ultrasound at the wedge-fluid interface.

Inventors:

Greenwood, Margaret S ^[1]; Lail, Jason C ^[2]

Richland, WA
Conover, NC

Issue Date:: 1998-01-13

Research Org.:: Pacific Northwest National Laboratory (PNNL), Richland, WA (United States)

OSTI Identifier:: 871327

Patent Number(s):: 5708191

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

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G - PHYSICS G01 - MEASURING G01N - INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
G01N2291/018 - Impedance
G01N2291/02809 - Concentration of a compound, e.g. measured by a surface mass change
G01N2291/02818 - Density, viscosity
G01N2291/045 - External reflections, e.g. on reflectors
G01N2291/105 - two or more emitters, two or more receivers
G01N29/032 - by measuring attenuation of acoustic waves
G01N29/223 - {Supports, positioning or alignment in fixed situation
G01N9/002 - {using variation of the resonant frequency of an element vibrating in contact with the material submitted to analysis

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DOE Contract Number:: AC06-76RL01830

Resource Type:: Patent

Country of Publication:: United States

Language:: English

Subject:: ultrasonic; fluid; densitometry; densitometer; material; wedge; acoustic; impedance; near; specifically; factor; 11; transducers; transmitting; receiving; signals; internally; reflected; density; determined; immersing; measuring; reflection; ultrasound; wedge-fluid; interface; material wedge; fluid densitometer; internally reflected; ultrasonic signal; acoustic impedance; ultrasonic signals; ultrasonic fluid; sonic signals; signals internally; wedge-fluid interface; measuring reflection; receiving ultrasonic; sonic signal; /73/

Citation Formats


                    Greenwood, Margaret S, and Lail, Jason C. Ultrasonic fluid densitometry and densitometer.  United States: N. p., 1998. 
        Web.

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                    Greenwood, Margaret S, & Lail, Jason C. Ultrasonic fluid densitometry and densitometer.  United States.

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                    Greenwood, Margaret S, and Lail, Jason C. Tue .  
        "Ultrasonic fluid densitometry and densitometer".  United States.  https://www.osti.gov/servlets/purl/871327.

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@article{osti_871327,

  title        = {Ultrasonic fluid densitometry and densitometer},

  author       = {Greenwood, Margaret S and Lail, Jason C},

  abstractNote = {The present invention is an ultrasonic fluid densitometer that uses a material wedge having an acoustic impedance that is near the acoustic impedance of the fluid, specifically less than a factor of 11 greater than the acoustic impedance of the fluid. The invention also includes a wedge having at least two transducers for transmitting and receiving ultrasonic signals internally reflected within the material wedge. Density of a fluid is determined by immersing the wedge into the fluid and measuring reflection of ultrasound at the wedge-fluid interface.},

  doi          = {},

  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {1998},

  month        = {1}

}

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Works referenced in this record:

An in-Line Ultrasonic Viscometer
book, January 1995

Sheen, S. H.; Chien, H. -T.; Raptis, A. C.
Review of Progress in Quantitative Nondestructive Evaluation
https://doi.org/10.1007/978-1-4615-1987-4_146

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Title: Ultrasonic fluid densitometry and densitometer

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Citation Formats

An in-Line Ultrasonic Viscometer book, January 1995

An in-Line Ultrasonic Viscometer
book, January 1995