Patent ID: 9121728
Filing Date: 2015-09-01
Classification: G01D

Abstract:
1. A device for measuring the position of a target constituted of an electrically conductive material in a longitudinal direction, which device comprises: a track extending along a longitudinal axis parallel to the measurement direction, which track comprises a primary winding adapted to induce an electrical current in a secondary winding that is organized in accordance with a periodic geometry so as to cover the area of the track by at least two winding loops over the length of the latter track; a target comprising a leading edge, mobile longitudinally relative to the track and superposed thereon between a first point and a second point delimiting a measurement amplitude and able, between these two points, to modify the current induced by the primary winding in the secondary winding; the target extending in the longitudinal direction from its leading edge, and during relative movement of the target between the first point and the second point the track area covered by the target being strictly increasing, characterized in that: the leading edge of the target is inclined at a non-zero angle α, in a plane of the surface of the target, relative to an axis that is parallel to the surface of the target and perpendicular to the longitudinal axis thereof.