Abstract: The invention relates to a method and a device for measuring the mechanical angular position of a rotor including, during a calibration phase and then a setting phase: acquiring Ns measurement signals, at measurement locations offset by a corresponding mechanical angle, modulo 2Pi/Nc radians of angle, to Pi/(2 x Nc) radians for Ns=2 and 2Pi/3Nc radians for Ns=3; compute an instantaneous electrical angular position value taking into account the arctangent of the ratio of the values of the two measurement signals for the time under consideration, or the arctangent of the ratio of the values of the two transforms obtained by a Clarke transform, applied to three measurement signals; determine electrical calibration (SIGcb) and setting (Sigi) signatures; determine an angular measurement offset value by an operation of resetting the signatures.

Abstract: The invention provides a measurement sensor for determining the position of a moving body, the sensor comprising a series of at least four detector probes for detecting a physical magnitude coming from a target comprising at least one track for creating a physical magnitude that is measurable by the detector probes and that varies along the path of the target with a function that is continuous and that includes a first harmonic and a second harmonic, the probes being connected to a processor unit for processing signals delivered by the probes, the processor unit including a reconstruction system for performing a linear combination of the signals and for obtaining firstly two quadrature signals including solely the first harmonic, and secondly two quadrature signals including solely the second harmonic, the unit also including a calculation system for processing the quadrature signals in order to determine the position of the moving body.

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.