Abstract: The invention relates to a magnetic sensor for determining position along a travel path (T) between a target (2) and a measurement system (3) for measuring the amplitude of the magnetic field created or modified by the target. The sensor comprises: a creation system for creating a magnetic field in a direction (M) perpendicular to the travel path (T) and with an intensity that varies with a parabolic relationship; a measurement system (3) comprising at least two mutually spatially offset measurement elements (3a), (3b) that are sensitive to the amplitude of the magnetic field in a given direction; and a processor circuit suitable for performing differential processing on the signals delivered by the measurement elements in order to obtain a linear variation signal giving the position of the target along the travel path.

Abstract: The invention concerns an open-loop current sensor (1) comprising a mount casing (2) in which a magnetic circuit (3) is arranged comprising a magnetic core (5) and a measuring air gap (8), a magnetic field detector (4) being positioned in the measuring air gap (8) to measure the magnetic field induced by the electric current circulating in a cable passing through the magnetic circuit (3). The sensor (1) also comprises connection systems (18) between the casing (2) and the terminal parts (6) of the magnetic circuit (3) to maintain a constant width of the measuring air gap.