Patents by Inventor Patrick BULOT

Patrick BULOT 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 for producing an optical fibre for a distributed measurement of temperature or deformation in a harsh environment using the Rayleigh backscattered signal
    Patent number: 11971310
    Abstract: An optical fibre, for use in the field of distributed measurement of temperature or deformation by optical reflectometry in the frequency domain using the Rayleigh backscattered signal in the fibre, includes a core doped with nanoparticles for example formed from gold particles covered with zirconium oxide, and can be subjected to high temperatures during the measurement. A method for producing the optical fibre includes a step of heat treatment during which the optical fibre is subjected, for a duration of at least one hour, to a heat treatment temperature higher than a maximum temperature to which it will be subjected during a measurement.
    Type: Grant
    Filed: June 21, 2019
    Date of Patent: April 30, 2024
    Assignees: COMMISSARIAT A L'ENERGIE ATOMIQUE ET ENERGIES ALTERNATIVES, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE, UNIVERSITE DE LILLE
    Inventors: Patrick Bulot, Remy Bernard, Odile Cristini, Monika Bouet, Guillaume Laffont, Marc Douay
  • METHOD FOR PRODUCING AN OPTICAL FIBRE FOR A DISTRIBUTED MEASUREMENT OF TEMPERATURE OR DEFORMATION IN A HARSH ENVIRONMENT USING THE RAYLEIGH BACKSCATTERED SIGNAL
    Publication number: 20210262868
    Abstract: An optical fibre, for use in the field of distributed measurement of temperature or deformation by optical reflectometry in the frequency domain using the Rayleigh backscattered signal in the fibre, includes a core doped with nanoparticles for example formed from gold particles covered with zirconium oxide, and can be subjected to high temperatures during the measurement. A method for producing the optical fibre includes a step of heat treatment during which the optical fibre is subjected, for a duration of at least one hour, to a heat treatment temperature higher than a maximum temperature to which it will be subjected during a measurement.
    Type: Application
    Filed: June 21, 2019
    Publication date: August 26, 2021
    Applicants: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE, UNIVERSITE DE LILLE
    Inventors: Patrick BULOT, Remy BERNARD, Odile CRISTINI, Monika BOUET, Guillaume LAFFONT, Marc DOUAY