ALEXANDRIA, Va., Oct. 21 -- United States Patent no. 12,442,839, issued on Oct. 14, was assigned to Accuenergy (Canada) Inc. (Canada).
"Rogowski coil with calibration unit" was invented by Vahid Behjat (Toronto), Yufan Wang (Toronto), Ketao Li (Toronto) and Liang Wang (Toronto).
According to the abstract* released by the U.S. Patent & Trademark Office: "The invention provides a current measurement device for a primary conductor. The device utilizes a Rogowski coil to generate an output voltage proportional to the rate of change of the primary current flowing through the conductor. The device also includes a calibration unit, operatively connected to the Rogowski coil. The calibration unit is designed to modify the output voltage using a p...