Patent Number: 7,784,365

Title: Short stroke magnetic position sensor, in particular for measuring a steering column twist

Abstract: A position sensor, which can detect a steering column twist of a first magnetic rotoric structure including a plurality of radially oriented magnets and a second statoric structure including two concentric gear rings extended by radially oriented teeth. The rotoric structure is substantially disc-shaped and includes a ferromagnetic head supporting the plurality of magnets, the statoric structures are provided with interleaving teeth and the position sensor includes a third collector structure including two flow closing parts, one of which is fixed, and which define at least one air gap in which at least one magnetosensitive element is arranged.

Inventors: Masson; Gerald (Besancon, FR), Biwersi; Stephane (Besancon, FR)

Assignee: Moving Magnet Technologies (MMT)

International Classification: G01L 3/02 (20060101)

Expiration Date: 8/31/12018