Patents by Inventor Alexandre Sourkov

Alexandre Sourkov 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 carrying out the nondestructive material characterization of ferromagnetic substances
    Patent number: 6752023
    Abstract: Disclosed is a method for the nondestructive metal characterization and the measurement of stress in the interior of a ferromagnetic part under test by means of measuring a high-frequency electric signal caused by flowing an excitation current through the part under test and/or by the mechanical deformation of the part under test. The present invention is distinguished by the electric potential of the part under test being detected by means of direct or indirect electric tapping on said part under test or a region of said part under test and a high-frequency potential component, which is used as the high-frequency noise signal for determining test parameters, is determined from the electric potential of the part under test caused by changes in magnetization processes.
    Type: Grant
    Filed: July 22, 2002
    Date of Patent: June 22, 2004
    Assignee: Fraunhofer Gesellschaft zur Forderung der Angewandten Forschung E.V.
    Inventors: Norbert Meyendorf, Henrik Rösner, Alexandre Sourkov, Fritz Michel