Noninvasive identification of fluids by swept-frequency acoustic interferometry

Sinha, Dipen N

Title: Noninvasive identification of fluids by swept-frequency acoustic interferometry

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Abstract

A method for rapid, noninvasive identification and monitoring of chemicals in sealed containers or containers where direct access to the chemical is not possible is described. Multiple ultrasonic acoustic properties (up to four) of a fluid are simultaneously determined. The present invention can be used for chemical identification and for determining changes in known chemicals from a variety of sources. It is not possible to identify all known chemicals based on the measured parameters, but known classes of chemicals in suspected containers, such as in chemical munitions, can be characterized. In addition, a large number of industrial chemicals can be identified.

Inventors:

Sinha, Dipen N ^[1]

Los Alamos, NM

Issue Date:: 1998-01-01

Research Org.:: Los Alamos National Lab. (LANL), Los Alamos, NM (United States)

OSTI Identifier:: 871631

Patent Number(s):: 5767407

Assignee:: Regents of University of California (Los Alamos, NM)

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
G01N29/036 - by measuring frequency or resonance of acoustic waves
G01N2291/02491 - Materials with nonlinear acoustic properties
G01N29/52 - using inversion methods other that spectral analysis, e.g. conjugated gradient inversion
G01N2291/0422 - Shear waves, transverse waves, horizontally polarised waves
G01N2291/02818 - Density, viscosity
G01N2291/015 - Attenuation, scattering
G01N29/348 - {with frequency characteristics, e.g. single frequency signals, chirp signals
G01N2291/011 - Velocity or travel time

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DOE Contract Number:: W-7405-ENG-36

Resource Type:: Patent

Country of Publication:: United States

Language:: English

Subject:: noninvasive; identification; fluids; swept-frequency; acoustic; interferometry; method; rapid; monitoring; chemicals; sealed; containers; direct; access; chemical; described; multiple; ultrasonic; properties; fluid; simultaneously; determined; determining; changes; variety; sources; identify; based; measured; parameters; suspected; munitions; characterized; addition; industrial; identified; acoustic properties; sealed container; sealed containers; noninvasive identification; measured parameters; frequency acoustic; measured parameter; chemical identification; /73/702/

Citation Formats


                    Sinha, Dipen N. Noninvasive identification of fluids by swept-frequency acoustic interferometry.  United States: N. p., 1998. 
        Web.

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                    Sinha, Dipen N. Noninvasive identification of fluids by swept-frequency acoustic interferometry.  United States.

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                    Sinha, Dipen N. Thu .  
        "Noninvasive identification of fluids by swept-frequency acoustic interferometry".  United States.  https://www.osti.gov/servlets/purl/871631.

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@article{osti_871631,

  title        = {Noninvasive identification of fluids by swept-frequency acoustic interferometry},

  author       = {Sinha, Dipen N},

  abstractNote = {A method for rapid, noninvasive identification and monitoring of chemicals in sealed containers or containers where direct access to the chemical is not possible is described. Multiple ultrasonic acoustic properties (up to four) of a fluid are simultaneously determined. The present invention can be used for chemical identification and for determining changes in known chemicals from a variety of sources. It is not possible to identify all known chemicals based on the measured parameters, but known classes of chemicals in suspected containers, such as in chemical munitions, can be characterized. In addition, a large number of industrial chemicals can be identified.},

  doi          = {},

  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {1998},

  month        = {1}

}

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