ALEXANDRIA, Va., Nov. 25 -- United States Patent no. 12,480,837, issued on Nov. 25, was assigned to Hitachi Energy Ltd (Zurich, Switzerland).
"Monitoring of a power device" was invented by Niklas Gustavsson (Ludvika, Sweden), Tommy Larsson (Ludvika, Sweden), Nilanga Abeywickrama (Vasteras, Sweden) and Joachim Schiessling (Enkoping, Sweden).
According to the abstract* released by the U.S. Patent & Trademark Office: "The present disclosure relates to a method for monitoring a power device. The method includes obtaining at least one frequency spectrum of at least one physical component of the power device, wherein the at least one frequency spectrum comprises at least one eigenfrequency of the at least one physical component of the power dev...