Patents by Inventor Matthieu Cavaro

Matthieu Cavaro has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Method of determining void rate by nonlinear acoustic resonance spectrometry in a biphase medium and application in a nuclear reactor
    Patent number: 8820137
    Abstract: A method of determining the void rate in a biphase gas/liquid medium, corresponding to the volume fraction of gas corresponding to the presence of bubbles in the liquid medium in a total volume of gas and liquid, comprises: deployment of a bulk elastic wave resonator in contact and coupled acoustically with the biphase medium; measurement by nonlinear resonant ultrasound spectroscopy of the biphase medium comprising the scanning in terms of frequencies and amplitudes in a given range of frequencies and in a given range of amplitudes, of bulk elastic waves emitted and detected at said resonator placed in said medium and leading a set of resonance curves exhibiting maxima; determination of a straight line defined by the set of maxima of said curves and of the slope of said straight line; determination of the void rate on the basis of said slope. The method may be applied to a nuclear reactor.
    Type: Grant
    Filed: May 6, 2011
    Date of Patent: September 2, 2014
    Assignee: Commissariat a l'Energie Atomique et Aux Energies Alternatives
    Inventors: Matthieu Cavaro, Cédric Payan
  • Method of determining void rate by nonlinear acoustic resonance spectrometry in a biphase medium and application in a nuclear reactor
    Publication number: 20130205869
    Abstract: A method of determining the void rate in a biphase gas/liquid medium, corresponding to the volume fraction of gas corresponding to the presence of bubbles in the liquid medium in a total volume of gas and liquid, comprises: deployment of a bulk elastic wave resonator in contact and coupled acoustically with the biphase medium; measurement by nonlinear resonant ultrasound spectroscopy of the biphase medium comprising the scanning in terms of frequencies and amplitudes in a given range of frequencies and in a given range of amplitudes, of bulk elastic waves emitted and detected at said resonator placed in said medium and leading a set of resonance curves exhibiting maxima; determination of a straight line defined by the set of maxima of said curves and of the slope of said straight line; determination of the void rate on the basis of said slope. The method may be applied to a nuclear reactor.
    Type: Application
    Filed: May 6, 2011
    Publication date: August 15, 2013
    Applicant: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES
    Inventors: Matthieu Cavaro, Cédric Payan