US Patent Issued to Allegro MicroSystems on March 17 for "Angle sensor using eddy currents and having harmonic compensation" (American, French Inventors)

ALEXANDRIA, Va., March 17 -- United States Patent no. 12,578,176, issued on March 17, was assigned to Allegro MicroSystems LLC (Manchester, N.H.).

"Angle sensor using eddy currents and having harmonic compensation" was invented by Remy Lassalle-Balier (Bures sur Yvette, France) and Alexander Latham (Harvard, Mass.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Methods and apparatus for sensors having a main coil to direct a magnetic field at a rotatable target for inducing eddy currents in the target and a receive coil having sine and cosine coils for detecting a reflected field from the target wherein each of the sine and cosine coils is configured such that an asymmetric reflected field from the target see...