US Patent Issued to Siemens on June 9 for "Arrangement and method for determining the operational performance of a rotating electric machine" (German Inventor)

ALEXANDRIA, Va., June 9 -- United States Patent no. 12,651,991, issued on June 9, was assigned to Siemens AG (Munich).

"Arrangement and method for determining the operational performance of a rotating electric machine" was invented by Christian Deeg (Altdorf, Germany).

According to the abstract* released by the U.S. Patent & Trademark Office: "An arrangement for determining the operational performance of a rotating electric machine connected to an operating voltage includes a sensor apparatus and a computing device. The sensor apparatus is designed to capture a stray magnetic field outside the machine and to calculate from the captured stray magnetic field a slip frequency and a synchronous frequency. An enhanced equivalent circuit diagra...