Linear inductive sensor (1 to 3) having both a fixed part (1) of transformer type with a primary circuit (6) and at least two secondary circuits (7, 8), the primary circuit (6) being flowed through by a high-frequency alternating current capable of inducing an electrical voltage in each of said at least two secondary circuits (7, 8), as well as a moving part (2, 3) having a metal target (2) intended to be fixed on a mechanical component executing a movement in rotation about a central axis, which the inductive sensor (1 to 3) measures angularly, wherein the target is in the form of a metal spiral (2) carried by a circular face of a ring (3) having a central recess (4), the ring (3) being intended to be fixed on the mechanical component while being concentric with the mechanical component, the metal spiral (2) projecting axially from the ring (3) while making at least one revolution around the central recess (4) as it moves away from the central recess (4).