Abstract: An electromagnetic device for converting input mechanical energy into output electrical energy, including a movable element that is able to make a vibratory mechanical movement, a vibration source configured to actuate the vibratory mechanical movement of the movable element, a coil, a magnetic circuit passing through the coil, the coil being configured to generate the output electrical energy when the movable element is making its vibratory mechanical movement, a permanent magnet arranged in the magnetic circuit and able to generate a magnetic flux, referred to as the total magnetic flux (Fm_T), in the magnetic circuit.

Abstract: The invention essentially consists of a system (1) for transmitting acoustic power, which will determine the optimum frequency and the optimum electrical load without data communication being established beforehand with the receiver (3).

Abstract: The invention relates to an energy recovery device including: a)—at least one first magnet, able to be set in movement according to a rotational or translational movement; b)—a main magnet, able to be set in rotation about an axis (ZZ?) by said at least first magnet; c)—at least one second magnet, fixedly disposed with respect to the main magnet, for determining one or more position(s) of equilibrium of the latter; d)—at least one conductive coil for transforming a variation of orientation of the main magnet into electrical energy, wherein: in a 1st speed or frequency range, called low range, a coupling of said at least one first magnet and of said main magnet causes the rotation of the latter from at least one position of equilibrium, the oscillations of said main magnet around said at least one position of equilibrium resulting in the creation of an electrical energy in said at least one conductive coil; for a 2nd speed or frequency range, called mid-range, a coupling of said at least one first magnet a

Abstract: A method for determining the state of at least one sensor, the method using a first electromechanical transducer and a second electromechanical transducer that are coupled to a substrate, and a non-linear electrical circuit connected between the second electromechanical transducer and the sensor, the method comprising the steps of: applying an electrical signal at a first amplitude to the terminals of the first electromechanical transducer, and determining a first set of values of a parameter characteristic of the electrical impedance of the first electromechanical transducer in response to the application of the electrical signal; applying the electrical signal at a second amplitude to the terminals of the first electromechanical transducer, and determining a second set of values of the parameter characteristic of the impedance; measuring a difference between the first set of values and the second set of values; determining a state of the sensor on the basis of the difference between the first set of values

Abstract: An electromagnetic transducer for harvesting vibratory energy is provided. In particular, an electromagnetic transducer comprising a support, a central mass, and at least one spring linking the central mass to the support, the spring allowing the displacement of the central mass with respect to the support on a first axis. A set of electromagnetic transducers is also provided.

Abstract: An electromagnetic device for converting input mechanical energy into output electrical energy, including a movable element that is able to make a vibratory mechanical movement, a vibration source configured to actuate the vibratory mechanical movement of the movable element, a coil, a magnetic circuit passing through the coil, the coil being configured to generate the output electrical energy when the movable element is making its vibratory mechanical movement, a permanent magnet arranged in the magnetic circuit and able to generate a magnetic flux, referred to as the total magnetic flux (Fm_T), in the magnetic circuit.

Abstract: The invention essentially consists of a system (1) for transmitting acoustic power, which will determine the optimum frequency and the optimum electrical load without data communication being established beforehand with the receiver (3).

Abstract: The invention relates to an electromagnetic device (10) comprising: a coil; a main magnet pivoting about an axis XX?, a first and second yoke (50, 50?), a first and second stabilizer magnet (41, 42), as well as a first and second actuator magnet (31, 32) arranged to slide along the axis YY? that is perpendicular to the pivot axis XX?, in such a way as to force the main magnet (30) to adopt an equilibrium position, the stabilizer magnets (41, 42) being arranged such that this sliding is accompanied by a movement of the stabilizer magnets (41, 42) so as to position one of the stabilizer magnets (41, 42) in a given position in order to limit the leaks which could occur at one of the two yokes.

Abstract: An electromagnetic energy converter including two plates each having an inner face; a flux variation device arranged between the inner faces, and which includes a first prismatic part, a magnet and a second prismatic part, and is arranged to pivot about an axis between two equilibrium positions, and for which the first and second prismatic parts each come into contact with an inner face; and a coil designed to be crossed by a magnetic flux generated by the magnet and guided by the two plates in a first direction when the device is in one equilibrium position, and in a second direction when said device is in the other equilibrium position.

Abstract: An electromagnetic energy converter including two plates each having an inner face; a flux variation device arranged between the inner faces, and which comprises includes a first prismatic part, a magnet and a second prismatic part, and is arranged to pivot about an axis between two equilibrium positions, and for which the first and second prismatic parts each come into contact with an inner face; and a coil designed to be crossed by a magnetic flux generated by the magnet and guided by the two plates in a first direction when the device is in one equilibrium position, and in a second direction when said device is in the other equilibrium position.

Abstract: The invention concerns a measurement unit including: an electric ambient energy recovery generator; an element of capacitive storage of the electric energy generated by the generator; an electric battery; a first branch coupling an output node of the generator to a first electrode of the capacitive storage element; a second branch coupling a first terminal of the battery to the first electrode of the capacitive storage element; and an active circuit capable of transmitting a radio event indicator signal each time the voltage across the capacitive storage element exceeds a first threshold, wherein, in operation, the capacitive storage element simultaneously receives a first charge current originating from the generator via the first branch and a second charge current originating from the battery via the second branch.

Abstract: The instant disclosure relates to a circuit for comparing a voltage with a first threshold, in which said first threshold depends on a second threshold of opening at least one first normally closed breaker.

Abstract: The invention relates to an electromagnetic energy converter which comprises at least one magnetic circuit capable of inducing a variation in the magnetic flux through a conductive coil (200). In this respect, the magnetic circuit comprises a yoke (300) laid out to pivot around an axis of rotation between a first P1 and a second P2 equilibrium position stabilised, respectively, by a first fixed magnet and a second fixed magnet. Also, the two magnets are laid out such that the stabilisation of the yoke (300) according to one or the other of the first P1 and second P2 equilibrium positions enable the circulation of a magnetic flux in the conductive coil (200), respectively, along a first direction and a second direction opposite to the first direction.

Abstract: The invention concerns a measurement unit including: an electric ambient energy recovery generator; an element of capacitive storage of the electric energy generated by the generator; an electric battery; a first branch coupling an output node of the generator to a first electrode of the capacitive storage element; a second branch coupling a first terminal of the battery to the first electrode of the capacitive storage element; and an active circuit capable of transmitting a radio event indicator signal each time the voltage across the capacitive storage element exceeds a first threshold, wherein, in operation, the capacitive storage element simultaneously receives a first charge current originating from the generator via the first branch and a second charge current originating from the battery via the second branch.

Abstract: An electrostatic converter includes: a stator provided with at least one electrode; a rotor including at least one blade provided with a counter-electrode, the blade being movable in rotation around an axis of rotation designed to coincide with a direction of an air flow; the electrode or the counter-electrode being coated with a dielectric material able to be biased, the stator and rotor being configured to allow a first relative movement between the electrode and counter-electrode around the axis of rotation of the rotary shaft of the rotor so as to generate an electrostatic torque when the rotor performs a rotation. The stator and the rotor are configured to allow a second relative movement between the electrode and counter-electrode so as to modify the electrostatic torque generated.

Abstract: A spring-mass system including a support, a mass mobile with respect to the support, at least one first and one second spring connecting the mass to the support allowing a displacement of the mass relative to the support along a first direction, the first spring being the symmetrical of the second spring with respect to an axis, each first and second spring comprising at least first and second series-connected beams arranged in zigzag, and a first closed frame surrounding the mass, at a distance from the mass and the support, each first beam having a first end connected to the support and a second end attached to the first frame and each second beam having a third end attached to the first frame and a fourth end connected to the mass.

Abstract: A circuit for comparing a voltage with a threshold, including: first and second nodes of application of the voltage; a first branch including a first transistor series-connected with a first resistor between first and second nodes; a second branch parallel to the first branch, including second and third series-connected resistors forming a voltage dividing bridge between the first and second nodes, the midpoint of the dividing bridge being connected to a control node of the first transistor; and a third branch including a second transistor in series with a resistive and/or capacitive element, between the control node of the first transistor and the first or second node, a control node of the second transistor being connected to the junction point of the first transistor and of the first resistor.

Abstract: This electrostatic converter comprises a rotor comprising at least one blade designed to receive an air flow; a stator comprising at least one electrode; a flexible membrane fitted on the blade, and comprising a counter-electrode, the electrode or the counter-electrode being coated with a dielectric material suitable to be polarized; the flexible membrane describing a trajectory when the rotor performs a rotation; the flexible membrane being configured to come into sliding contact with the stator on a first part of the trajectory, and configured to be at a distance from the stator on a second part of the trajectory so as to form a variable electric capacitance variable suitable to induce an electric current.

Abstract: A device for converting thermal power into electric power includes many conversion cells arranged inside and on top of a substrate. Each conversion cell includes a curved bimetal strip and first and second diodes coupled to the bimetal strip. The diodes are arranged in a semiconductor region of the substrate.

Abstract: A device for indicating the filling level of a container, including: a first mobile element located inside of the container and capable of moving along a wall of the container when the filling level of the container varies; an enclosure containing a liquid or a gel, located outside of the container on the side of said wall opposite to the first element; and a second mobile element located inside of the enclosure and plunged into said liquid or gel, the second element being magnetically coupled to the first element and being capable of moving in the enclosure along said wall by following the displacements of the first element.