Non-contact torque sensor with permanent shaft magnetization (US Patent 9159481)

Patent number: 9159481 Kind code: B2 Granted: 2015-10-13 Filed: 2010-09-21 Inventors: Lutz May (Berg, DE) Assignees: PolyResearch AG (Chur, CH) CPC: H01F 13/003

Abstract

A device for magnetizing an object includes first and second electrode for contacting the object to be magnetized as well as a current generator. The generator is configured to apply a current having a raising current slope and a falling current slope. The falling current slope is steeper than the raising current slope.

Claims

1. A