The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 24, 2015
Filed:
Apr. 07, 2011
Didier Frachon, Besancon, FR;
Stephane Biwersi, Frambouhans, FR;
Didier Frachon, Besancon, FR;
Stephane Biwersi, Frambouhans, FR;
Moving Magnet Technologies (MMT), Besancon, FR;
Abstract
The invention relates to a contactless magnetic sensor for detecting a linear or angular position, comprising a moveable ferromagnetic element () the position of which is detected, and a stator assembly () itself, comprising two ferromagnetic parts (), defining with the moveable ferromagnetic element () two respective air gaps (), a permanent magnet () and a magneto-sensitive element () subjected to a magnetic field that depends on the position of the moveable ferromagnetic element () and designed to deliver a measurement signal that depends on the magnetic field to which it is subjected. According to the invention, the two ferromagnetic parts () define therebetween a third air gap (), the permanent magnet () being rigidly connected only to the first ferromagnetic part () and the magneto-sensitive element () being placed in the third air gap ().