Patents by Inventor Suresh K. Yagnik

Suresh K. Yagnik 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 apparatus for measuring hydrogen concentration in zirconium alloy components in the fuel pool of a nuclear power plant
    Patent number: 7388369
    Abstract: The present invention provides a method for measuring hydrogen concentration in an electrically conductive material, such as a nuclear fuel rod, comprising calibrating an eddy current probe at a plurality of hydrogen concentrations; measuring eddy currents at a plurality of positions along an electrically conductive material; and calculating a hydrogen concentration in the electrically conductive material at each of the positions along the electrically conductive material. The present invention also provides a system for measuring hydrogen concentration in a nuclear fuel rod, comprising an eddy current probe; a nuclear fuel rod calibration standard; a data handling system for collecting data generated by the eddy current probe and for performing calculations using the data. The system may be utilized in-situ and may comprise a movable probe mount configured to hold the eddy current probe and to traverse the calibration standard and the nuclear fuel rod to be measured.
    Type: Grant
    Filed: November 30, 2004
    Date of Patent: June 17, 2008
    Assignee: Electric Power Research Institute, Inc.
    Inventors: Kurt Edsinger, Suresh K. Yagnik, Duane P. Johnson