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:
Jul. 16, 2019
Filed:
Sep. 14, 2015
Safran Electronics & Defense, Boulogne-Billancourt, FR;
Bastien Cagnac, Boulogne-Billancourt, FR;
Jerome Piaton, Boulogne-Billancourt, FR;
Kevin Brenugat, Boulogne-Billancourt, FR;
SAFRAN ELECTRONICS & DEFENSE, Boulogne-Billancourt, FR;
Abstract
The invention relates to a rotation sensor, comprising: —a stator (A) and rotor (B), arranged coaxially and forming a magnetic circuit (), the rotor being mounted angularly displaced with respect to the stator, —a primary winding, suitable for generating a magnetic field in the magnetic circuit, and —at least one secondary winding, characterized in that the magnetic circuit comprises at least one tooth () extending radially with respect to the axis (X-X) of the stator and of the rotor, and at least one notch () suitable for receiving said tooth, such that the tooth is separated from the notch by at least one tangential air gap () that is variable according to the angular displacement of the rotor with respect to the stator, the tooth and the notch being shaped so that, during a rotation of the rotor with respect to the stator, a variation in the width of the tangential air gap causes an increase or a decrease in the permeance of the air and, respectively, an increase or a decrease in the voltage at the terminals of the secondary winding.