US Patent Issued to CHAUVIN ARNOUX on Feb. 17 for "Measuring method and single-torus loop ohmmeter with AC leakage flux compensation" (French Inventors)

ALEXANDRIA, Va., Feb. 17 -- United States Patent no. 12,553,931, issued on Feb. 17, was assigned to CHAUVIN ARNOUX (Asnieres-sur-Seine, France).

"Measuring method and single-torus loop ohmmeter with AC leakage flux compensation" was invented by Philippe Legros (Asnieres-Sur-Seine, France) and Jerome Adam (Asnieres-Sur-Seine, France).

According to the abstract* released by the U.S. Patent & Trademark Office: "A single-torus ohmmeter for measuring a loop impedance Zx, includes a single transformer having a primary winding of Np coils and a secondary winding of a single coil forming the measurement loop, in which, to compensate for a stray induction produced by an AC leakage current circulating in the measurement loop without canceling a mea...