Patents by Inventor Jean Pinassaud

Jean Pinassaud 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 and device for eddy current imaging for the detection and the characterisation of defects hidden in complex structures
    Patent number: 8159216
    Abstract: This eddy current imaging method includes the steps of: positioning (72), in the vicinity of a large inspection region, elements for the measurement of a surface magnetic field, generating (74, 92) a global exciting magnetic field over the observation inspection region, measuring (76, 84) a resultant magnetic field at the surface, in the form of images, processing (90) the images. The generating step (74, 82) involves generating a set of at least two exciting magnetic field waveforms; the measuring step (76, 86) involves measuring a set of configurations of the resultant magnetic field in the form of images; the step (90) of treating the images by combining them allows defects to be detected and the position and the nature thereof to be determined.
    Type: Grant
    Filed: May 10, 2007
    Date of Patent: April 17, 2012
    Assignee: Centre National de la Recherche Scientifique (C.N.R.S.)
    Inventors: Pierre-Yves Joubert, Yohan Le Diraison, Jean Pinassaud
  • METHOD AND DEVICE FOR EDDY CURRENT IMAGING FOR THE DETECTION AND THE CHARACTERISATION OF DEFECTS HIDDEN IN COMPLEX STRUCTURES
    Publication number: 20100013468
    Abstract: This eddy current imaging method includes the steps of: positioning (72), in the vicinity of a large inspection region, elements for the measurement of a surface magnetic field, generating (74, 92) a global exciting magnetic field over the observation inspection region, measuring (76, 84) a resultant magnetic field at the surface, in the form of images, processing (90) the images. The generating step (74, 82) involves generating a set of at least two exciting magnetic field waveforms; the measuring step (76, 86) involves measuring a set of configurations of the resultant magnetic field in the form of images; the step (90) of treating the images by combining them allows defects to be detected and the position and the nature thereof to be determined.
    Type: Application
    Filed: May 10, 2007
    Publication date: January 21, 2010
    Applicant: CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE (C.N.R.S.)
    Inventors: Pierre-Yves Joubert, Yohan Le Diraison, Jean Pinassaud