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1. (WO2018086920) CONTACTLESS ANGULAR SENSOR

Pub. No.:    WO/2018/086920    International Application No.:    PCT/EP2017/077699
Publication Date: Fri May 18 01:59:59 CEST 2018 International Filing Date: Sat Oct 28 01:59:59 CEST 2017
IPC: G01D 5/241
Applicants: SAFRAN ELECTRONICS & DEFENSE
Inventors: GUILLOT, François
BICKARD, Thierry
Title: CONTACTLESS ANGULAR SENSOR
Abstract:
A sensor for sensing the angular motion of an object, comprising a frame (0) on which a first stationary part (1) and a second rotatably movable part (2) are mounted, bearing, respectively, a first printed circuit (10) and a second printed circuit (20) centred on the axis of rotation (X) and facing each other, that comprise conductive pads (11, 12, 21, 22) for forming capacitive sectors and, respectively, a primary excitation winding (15) and a secondary excitation winding (25) connected to the conductive pads (21, 22) of the second printed circuit; the first printed circuit being connected to an electronic control circuit (30) arranged to create excitation signals transmitted by the first printed circuit to the second printed circuit by magnetic coupling and demodulate signals transmitted by the second printed circuit to the first printed circuit by capacitive coupling.