Abstract: A method for determining the position ? of a moving part (T) along an axis (X), using an inductive sensor (10) including: a primary winding (B1) generating an electromagnetic field; a first secondary winding (R1), generating a first voltage signal (V1), of the sine function type; a second secondary winding (R2), generating a second voltage signal (V2) of the cosine function type; and a calculation unit (20?), wherein the method includes the steps of calculating and distributing linearization points i on the arctangent function tan(?) resulting from the ratio of the first voltage signal to the second voltage signal, the linearization points i being distributed according to a sinusoidal function in order to reduce the error on the position (?) of the target (T) at the ends (E1, E2) of the primary and secondary windings (R1, R2).

Abstract: An inductive sensor (100) for a motor vehicle, includes: a field coil (101) designed to form an electromagnetic field, a coil (103) for measuring a magnetic field and designed to provide an output signal representative of the position of a metal target (102) in the magnetic field formed by the field coil (101), and at least two electric circuits (111) connected simultaneously in parallel to the terminals of the field coil (101), each electric circuit (111) including an inverter element (112) and a capacitive element (113), and forming, together with the field coil (101) an electric oscillator (110) designed to form an AC voltage at the terminals of the field coil (10) via electric resonance, the electric oscillators (110) being of the same resonance frequency.

Abstract: A method for determining the position ? of a moving part (T) along an axis (X), using an inductive sensor (10) including: a primary winding (B1) generating an electromagnetic field; a first secondary winding (R1), generating a first voltage signal (V1), of the sine function type; a second secondary winding (R2), generating a second voltage signal (V2) of the cosine function type; and a calculation unit (20?), wherein the method includes the steps of calculating and distributing linearization points i on the arctangent function tan(?) resulting from the ratio of the first voltage signal to the second voltage signal, the linearization points i being distributed according to a sinusoidal function in order to reduce the error on the position (?) of the target (T) at the ends (E1, E2) of the primary and secondary windings (R1, R2).

Abstract: A device for measuring the position of a target includes a track, which includes a primary winding (513) supplied with an alternating current at high frequency, and a plurality of secondary windings (511, 512). The device measures the position of the leading edge (510) of the target (500) in a so-called longitudinal direction (5000) between a first position and a second position between which the target (500) completely covers the track (550). Surprisingly, this configuration enables a very significant increase in the useful measurement length of such a track (550).

Abstract: A device for measuring a spectrum of a light beam, in a wavelength range chosen beforehand, the spectrum being generated by a sample to be analyzed, the optical measuring device including at least one light source, a measurement cell and a measurement detector placed on a measurement optical pathway, the measurement optical pathway being taken by a measurement optical beam emitted by the light source, and encountering the measurement cell, a self-calibration unit allowing any drift of the light sources, due to environmental conditions or conditions of use, to be taken into account independently of whether a sample to be analyzed is present in or absent from the measurement cell, the self-calibration unit including elements for creating a reference optical pathway, taken by a reference optical beam emitted by the light source, and not encountering the measurement cell, and a reference detector.

Abstract: An inductive sensor (100) for a motor vehicle, includes: a field coil (101) designed to form an electromagnetic field, a coil (103) for measuring a magnetic field and designed to provide an output signal representative of the position of a metal target (102) in the magnetic field formed by the field coil (101), and at least two electric circuits (111) connected simultaneously in parallel to the terminals of the field coil (101), each electric circuit (111) including an inverter element (112) and a capacitive element (113), and forming, together with the field coil (101) an electric oscillator (110) designed to form an AC voltage at the terminals of the field coil (10) via electric resonance, the electric oscillators (110) being of the same resonance frequency.

Abstract: A device for measuring the position of a target includes a track, which includes a primary winding (513) supplied with an alternating current at high frequency, and a plurality of secondary windings (511, 512). The device measures the position of the leading edge (510) of the target (500) in a so-called longitudinal direction (5000) between a first position and a second position between which the target (500) completely covers the track (550). Surprisingly, this configuration enables a very significant increase in the useful measurement length of such a track (550).

Abstract: A device for measuring a spectrum of a light beam, in a wavelength range chosen beforehand, the spectrum being generated by a sample to be analyzed, the optical measuring device including at least one light source, a measurement cell and a measurement detector placed on a measurement optical pathway, the measurement optical pathway being taken by a measurement optical beam emitted by the light source, and encountering the measurement cell, a self-calibration unit allowing any drift of the light sources, due to environmental conditions or conditions of use, to be taken into account independently of whether a sample to be analyzed is present in or absent from the measurement cell, the self-calibration unit including elements for creating a reference optical pathway, taken by a reference optical beam emitted by the light source, and not encountering the measurement cell, and a reference detector.