Patents by Inventor Joanne Marie Aberdeen

Joanne Marie Aberdeen 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).

  • Temperature compensated current measurement
    Patent number: 9970963
    Abstract: A temperature compensated current measurement device comprises a Rogowski coil having a terminating impedance arranged to adjust the attenuation of the coil to balance changes in coil sensitivity so that the output voltage indicative of measured current remains substantially unchanged, the terminating impedance having different values above and below a threshold frequency.
    Type: Grant
    Filed: February 1, 2013
    Date of Patent: May 15, 2018
    Assignee: Power Electronic Measurements Limited
    Inventors: William Frederick Ray, Christopher Rene Hewson, Joanne Marie Aberdeen
  • TEMPERATURE COMPENSATED CURRENT MEASUREMENT
    Publication number: 20150015244
    Abstract: A temperature compensated current measurement device comprises a Rogowski coil having a terminating impedance arranged to adjust the attenuation of the coil to balance changes in coil sensitivity so that the output voltage indicative of measured current remains substantially unchanged, the terminating impedance having different values above and below a threshold frequency.
    Type: Application
    Filed: February 1, 2013
    Publication date: January 15, 2015
    Inventors: William Frederick Ray, Christopher Rene Hewson, Joanne Marie Aberdeen