Abstract: A measurement method using an inductive proximity sensor connected to a cable, the measurement method including the following steps: applying to the cable an excitation voltage at a known reference frequency; acquiring a measurement voltage representative of the excitation current that flows in the cable and in the sensor under the effect of the excitation voltage; multiplying the measurement voltage both by a first reference signal in order to obtain a first measurement signal and also by a second reference signal in order to obtain a second measurement signal; using the first measurement signal and the second measurement signal to evaluate a measurement impedance representative of the impedance of the sensor and of the cable; using the measurement impedance to estimate the inductance of the sensor or the impedance of the sensor; and comparing the inductance of the sensor or the impedance of the sensor with a predefined detection threshold in order to obtain proximity information.

Abstract: A measurement method using an inductive proximity sensor connected to a cable, the measurement method including the following steps: applying to the cable an excitation voltage at a known reference frequency; acquiring a measurement voltage representative of the excitation current that flows in the cable and in the sensor under the effect of the excitation voltage; multiplying the measurement voltage both by a first reference signal in order to obtain a first measurement signal and also by a second reference signal in order to obtain a second measurement signal; using the first measurement signal and the second measurement signal to evaluate a measurement impedance representative of the impedance of the sensor and of the cable; using the measurement impedance to estimate the inductance of the sensor or the impedance of the sensor; and comparing the inductance of the sensor or the impedance of the sensor with a predefined detection threshold in order to obtain proximity information.

Abstract: A measurement method using an inductive displacement sensor including a magnetic core and transformer with a primary winding and two secondary windings.

Abstract: A measurement method using an inductive displacement sensor including a magnetic core and transformer with a primary winding and two secondary windings.

Abstract: A method for identifying the existence of a failure of a relay device in an electrical power supply system of a device to be supplied with power, the power supply system comprising at least one power generator configured to generate a power supply signal and a load comprising at least one relay device; the power generator comprising a frequency variator; each relay device comprising a quadripole and at least one antenna linked to the quadripole. The identification method comprises the following steps: a) selecting a characteristic frequency, b) determining the impedance of the load, then when the supply signal has the selected characteristic frequency, c) repeating steps a) and b) for several distinct characteristic frequencies, d) identifying the existence of a failure from several impedances determined for different characteristic frequencies.

Abstract: A method for identifying the existence of a failure of a relay device in an electrical power supply system of a device to be supplied with power, the power supply system comprising at least one power generator configured to generate a power supply signal and a load comprising at least one relay device; the power generator comprising a frequency variator; each relay device comprising a quadripole and at least one antenna linked to the quadripole. The identification method comprises the following steps: a) selecting a characteristic frequency, b) determining the impedance of the load, then when the supply signal has the selected characteristic frequency, c) repeating steps a) and b) for several distinct characteristic frequencies, d) identifying the existence of a failure from several impedances determined for different characteristic frequencies.

Abstract: A method for demodulating at least one received frame is provided, where the frame includes of a succession of bits coded according to a Manchester code. The method includes the steps of: generating an interruption at least at each appearance of a rising and/or falling edge of the frame of coded bits; determining the time between each interruption from at least one first counter; reinitializing the demodulation of the frame as soon as one of the determined times is less than a first predetermined value or greater than a second predetermined value, the first and second predetermined values being dependent on the duration of a bit coded according to the code; and demodulating, for each determined time, if the determined time is greater than the first predetermined value and is less than the second predetermined value, at least one binary value of the frame from the determined time.

Abstract: A method for demodulating at least one received frame is provided, where the frame includes of a succession of bits coded according to a Manchester code. The method includes the steps of: generating an interruption at least at each appearance of a rising and/or falling edge of the frame of coded bits; determining the time between each interruption from at least one first counter; reinitialising the demodulation of the frame as soon as one of the determined times is less than a first predetermined value or greater than a second predetermined value, the first and second predetermined values being dependent on the duration of a bit coded according to the code; and demodulating, for each determined time, if the determined time is greater than the first predetermined value and is less than the second predetermined value, at least one binary value of the frame from the determined time.

Abstract: The invention relates to a device for detecting (CAPT) the presence of an object, that comprises at least one detection member (EA, EB) to which is associated a physical value that varies based on the environment in which said detection member (EA, EB) is located. The invention is characterised in that the physical value provides a variable reference level corresponding to the absence of an object and in that it further comprises a saving device (LOG IC) for saving, upon the emission of a low-frequency signal, a value of the reference level measured before the emission of said low-frequency signal.

Abstract: The invention relates to a device for detecting (CAPT) the presence of an object, that comprises at least one detection member (EA, EB) to which is associated a physical value that varies based on the environment in which said detection member (EA, EB) is located. The invention is characterised in that the physical value provides a variable reference level corresponding to the absence of an object and in that it further comprises a saving device (LOGIC) for saving, upon the emission of a low-frequency signal, a value of the reference level measured before the emission of said low-frequency signal.