Patent ID: 8314609

Claim:
A device for piloting an aircraft, having at least one piloting member which is movable along at least one axis of rotation equipped with at least one contactless angular position sensor including a stator assembly and a rotor assembly which are movable in relation to one another about an axis of rotation, wherein at least one angular position sensor comprises: a magnetic structure suitable for generating a magnetic field, at least one magnetic-field-sensitive element which is arranged: radially offset in relation to the axis of rotation, interlinked with one of said assemblies, and placed opposite the magnetic structure interlinked with the other of said assemblies, for measuring an angle (φ) formed by a direction of said magnetic field in relation to a reference direction, wherein each magnetic-field-sensitive element comprises: a plurality of magnetic field detecting cells, arranged in directions radial to the axis of rotation and at different distances in relation to the axis of rotation, each detecting cell supplying a signal representing a Hall effect voltage that is proportional to the amplitude of the component of said magnetic field in a direction defined by said detecting cell, a supply and measuring circuitry which is associated with each magnetic-field-sensitive element and configured for supplying each detecting cell with an electrical current having a predetermined nominal intensity (i), and for signals delivered by each powered detecting cell which represent said angle (φ), and wherein said supply and measuring circuitry comprises: at least one memory in which values representing predetermined compensation coefficients Gk are individually recorded for each detecting cell, an electronic compensation circuit which is configured for selecting, for each powered detecting cell, one of said predetermined values representing one compensation coefficient Gk depending on the position of said detecting cell in relation to the axis of rotation, and for applying said compensation coefficient value Gk by modifying at least one intensity and voltage signal in said supply and measuring circuitry of said powered detecting cell, such that errors caused by the radial offset of the magnetic-field-sensitive element in relation to the axis of rotation are corrected.