Abstract: According to the invention, the position sensor is characterized in that the correction means (3) are achieved by at least one saturated magnetic pole, a so-called stabilization pole (Ps), having a sign opposite to the sign of the irregular pole (Pi) which is also saturated, each stabilization pole (Ps) extending from one to the other edge of the magnetic ring, by being inserted in the irregular pole, so as to stabilize the magnetic signal delivered by the passage of the poles adjacent to the irregular pole, said magnetic signal delivered between the passage of the adjacent poles not passing through the zero value.

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.

Abstract: A method for diagnosing a lead-acid battery of an automotive vehicle includes an experimentation phase in which parameterization of the state of health (SOH) of a lead-acid battery for different values of the state of charge (SOC) of the battery is conducted, and a diagnosis phase in which the battery temperature during the start-up phase of the vehicle is measured and, after the first discharge and over a given range of current variation, the corresponding voltage (U) and current (I) is measured, to deduce therefrom after processing, a value of parameter (?) of the battery. The state of charge (SOC) of the battery is then determined, and the value representing the state of health is determined, so as to establish a diagnosis of the battery.

Abstract: According to the invention, the position sensor is characterized in that the correction means (3) are achieved by at least one saturated magnetic pole, a so-called stabilization pole (Ps), having a sign opposite to the sign of the irregular pole (Pi) which is also saturated, each stabilization pole (Ps) extending from one to the other edge of the magnetic ring, by being inserted in the irregular pole, so as to stabilize the magnetic signal delivered by the passage of the poles adjacent to the irregular pole, said magnetic signal delivered between the passage of the adjacent poles not passing through the zero value.

Abstract: A device to correct interference errors in a measuring installation (A) that includes at least two magnetic sensors (11, 12) for measuring the position of mobile elements (21, 22) that are moving along adjacent trajectories, with each magnetic measuring sensor delivering a measurement signal that is representative of the position of the mobile element in an open magnetic circuit (31, 32), and resources (M) for processing the measurement signals delivered by the magnetic measuring sensors. According to the invention, the processing resources (M) include resources for correction of the magnetic measurement signals in order to take account of interference errors between adjacent magnetic sensors (11, 12), with a view to obtaining a corrected measurement signal for each magnetic measuring sensor.

Abstract: A magnetic sensor for determining the position of a cellular phone in linear movement along an axis of translation, the sensor including a measuring cell fitted to a magnetic circuit and capable of measuring the variations in the value of the magnetic induction flux consecutive with the reluctance variations of the magnetic circuit. According to the invention, the sensor further includes a single delimiting fixed magnetic circuit between two fixed pole parts, a variable air gap within which at least a magnetic induction is created that extends along a length parallel to the axis of translation and at least equal to the travel to be measured of the cellular phone, and a measurable air gap to which the measuring cell is fitted.

Abstract: A device to correct interference errors in a measuring installation (A) that includes at least two magnetic sensors (11, 12) for measuring the position of mobile elements (21, 22) that are moving along adjacent trajectories, with each magnetic measuring sensor delivering a measurement signal that is representative of the position of the mobile element in an open magnetic circuit (31, 32), and resources (M) for processing the measurement signals delivered by the magnetic measuring sensors. According to the invention, the processing resources (M) include resources for correction of the magnetic measurement signals in order to take account of interference errors between adjacent magnetic sensors (11, 12), with a view to obtaining a corrected measurement signal for each magnetic measuring sensor.

Abstract: The invention relates to a smart safety device appearing as a box (3) including mounting means on at least one electric circuit. The box includes: at least one sensor (4) for measuring a current flowing on an electric circuit of the network, a computing and control unit (6) including: means (7) for acquiring current measurements taken by the current sensor (4), computing means (11) which, depending on current measurements and on determined operating criteria for the electric network, determine the abnormal or normal operating state of at least one piece of electric equipment, and at least one disconnecting system (15) controlled by the computing and control unit (6) in order to disconnect at least the electric circuit including a piece of electric equipment which is considered to be in an abnormal operating state by said unit.

Abstract: The invention relates to a magnetic sensor to determine the position of a cellular phone (2) in linear movement along an axis of translation, the sensor comprising a measuring cell fitted to a magnetic circuit and capable of measuring the variations in the value of the magnetic induction flux consecutive with the reluctance variations of the magnetic circuit. According to the invention, the sensor comprises a single delimiting fixed magnetic circuit between two fixed pole parts: a variable air gap (4) within which at least a magnetic induction is created that extends along a length parallel to the axis of translation and at least equal to the travel to be measured of the cellular phone, the variable air gap (4) being capable of allowing the linear movement of the cellular phone (2) which is equipped with means for modifying the reluctance of said variable air gap, mechanically independent of said sensor; and a measurable air gap (7) to which the measuring cell is fitted.

Abstract: The invention relates to a magnetic sensor for determining the location of a moving object (2) along an axis of displacement (T), the sensor including: an open magnetic circuit (3) that delimits at least one gap (8) and includes means (4) for creating a magnetic flux, at least one first measuring cell (11) fixedly mounted in the magnetic circuit (3) and capable of measuring the value of the magnetic flux, means for processing the output signal delivered by the measuring cell (11) in order to determine the linear location of the moving object along the displacement axis. According to the invention: the magnetic circuit (3) also includes at least one pole piece (5) associated with means for creating a magnetic flux, the measurement cell (11) is mounted near an extreme point of displacement so as to measure the magnetic flux delivered by the creating means (4) minus the magnetic leakage flux.

Abstract: The sensor according to the invention is characterized in that: the bulkiness of the coding tracks is less than the measuring stroke of the measuring stroke of the mobile, the detection elements (6a, 6b) are sensitive to the value of the physical quantity of the coding elements, so that each detection element occupies a first binary state when the value of the physical quantity is larger than a threshold, a second binary state when the value of the physical quantity is less than said threshold, one of the two determined binary states when said detection elements are not found located opposite a coding track, and at least one coding track (10a, 10b) includes, as a coding element, at least one first type coding element (11v) on the one hand, and at least one second type coding element (11a, 11b) on the other hand.

Abstract: The disclosure concerns an encoder for a position sensor, the encoder having a multipole magnetic ring provided on its circumference with alternating north poles and south poles for traveling past a measurement cell that delivers a periodic signal corresponding to variation in the intensity of the magnetic field delivered by the poles.

Abstract: The invention provides an encoder for a position sensor, the encoder being of the type comprising a multipole magnetic ring provided on its circumference with alternating north poles and south poles for traveling past a measurement cell that delivers a periodic signal corresponding to variation in the intensity of the magnetic field delivered by the poles, at least one of said poles of a determined sign being an “irregular” pole and comprising between the two opposite-sign poles adjacent thereto, firstly a spacing that is different from the spacing pitch between the other poles, and secondly means for correcting the value of its magnetic field so that the magnetic signal delivered by the passage of the poles adjacent to said irregular pole is symmetrical about the null value of the magnetic field.