Abstract: A method for generating a stirring in a fluid microdrop, the volume of which is preferably greater than several tens of nanolitres, using an actuator device comprising a high-overtone bulk acoustic resonator HBAR having a quality factor Q of at least 100 in air and including a support which is substantially flat and coated with a layer of dielectric material. The HBAR resonator is associated with a modulatable electronic device capable of generating high-frequency waves. The method envisages depositing, on the support, a fluid microdrop, generating a sinusoidal electrical signal by controlling the modulatable electronic device at a chosen frequency, the frequency being between 100 MHz and 4 GHz, and transformation of the sinusoidal electrical signal having the chosen frequency into high-frequency acoustic waves (OA) by the HBAR resonator.

Abstract: A temperature-controlled RF resonator. The resonator includes an insulating thermal enclosure within which are implemented: at least one resonant element configured to deliver an RF output signal when supplied with an RF input signal; at least one heating element configured to supply thermal energy within the thermal enclosure when the at least one heating element is powered by an LF electric power signal; and at least one temperature sensor configured to deliver an LF electric measurement signal as a function of the temperature inside the thermal enclosure. Such an RF resonator has at least one input/output port crossing the insulating thermal enclosure and propagating at least: one signal from among the RF signals; and another signal from among the LF electric signals.

Abstract: A method for generating a stirring in a fluid microdrop, the volume of which is preferably greater than several tens of nanolitres, using an actuator device comprising a high-overtone bulk acoustic resonator HBAR having a quality factor Q of at least 100 in air and including a support which is substantially flat and coated with a layer of dielectric material. The HBAR resonator is associated with a modulatable electronic device capable of generating high-frequency waves. The method envisages depositing, on the support, a fluid microdrop, generating a sinusoidal electrical signal by controlling the modulatable electronic device at a chosen frequency, the frequency being between 100 MHz and 4 GHz, and transformation of the sinusoidal electrical signal having the chosen frequency into high-frequency acoustic waves (OA) by the HBAR resonator.

Abstract: The present disclosure relates to an electrohydraulic brake module for a motor vehicle brake system, comprising a housing, a hydraulic module with a piston/cylinder arrangement for generating a hydraulic brake pressure, an electric motor for driving the piston/cylinder arrangement, and a transmission arrangement for mechanically transmitting a brake pedal deflection. Furthermore, the brake module comprises a sensor cluster. The brake module has a redundantly acting sensor system and mechanism.

Abstract: A temperature-controlled RF resonator. The resonator includes an insulating thermal enclosure within which are implemented: at least one resonant element configured to deliver an RF output signal when supplied with an RF input signal; at least one heating element configured to supply thermal energy within the thermal enclosure when the at least one heating element is powered by an LF electric power signal; and at least one temperature sensor configured to deliver an LF electric measurement signal as a function of the temperature inside the thermal enclosure. Such an RF resonator has at least one input/output port crossing the insulating thermal enclosure and propagating at least: one signal from among the RF signals; and another signal from among the LF electric signals.

Abstract: A hydraulic pressure sensor for a vehicle comprises a sensor housing which comprises a fluid chamber, a sensor element for detecting the pressure of a fluid in the fluid chamber, and an electronic signal processing component which is electrically connected to the sensor element, for processing an electric signal characterizing the fluid pressure. Electrically conductive contacts for forwarding the electric signals processed by the electronic signal processing components are formed on an external main surface of the sensor housing.

Abstract: A hydraulic pressure sensor for a vehicle comprises a sensor housing which comprises a fluid chamber, a sensor element for detecting the pressure of a fluid in the fluid chamber, and an electronic signal processing component which is electrically connected to the sensor element, for processing an electric signal characterizing the fluid pressure. Electrically conductive contacts for forwarding the electric signals processed by the electronic signal processing components are formed on an external main surface of the sensor housing.

Abstract: A bulk wave piezoelectric resonator operating at a predetermined frequency includes a substrate block, having a plane face, a first thickness and consisting of a first material, a resonant plate having a length, width and second thickness, and consisting of a second piezoelectric material, first and second metal electrodes at least partly covering the resonant plate on each side and partly facing each other. The resonant plate is fixed perpendicularly in the vicinity of the plane face of the substrate block so that the width of the resonant plate and the first thickness of the substrate block have the same direction, and the first material, the second material, the first thickness of the block of substrate, the length, the width, the second thickness of the resonant plate are configured for trapping bulk waves at the operating frequency of the resonator and for producing a plane-plane type bulk wave piezoelectric resonator.

Abstract: A sensor assembly for use with a master cylinder is described. The master cylinder comprises an input-side activation element to which a signal transmitter element is coupled. The sensor module comprises a travel sensor for sensing travel carried out by the activation element, and a position sensor for sensing when a predefined position of the activation element is reached.

Abstract: A sensor module for use with a master cylinder of a brake system is described, wherein the master cylinder has an input-side activation element and an underpressure region for communicating with an underpressure brake booster. The sensor module comprises an underpressure sensor for detecting an underpressure in the underpressure region of the master cylinder as well as at least one further sensor for detecting a signal transmitter which is rigidly coupled to the activation element. The underpressure sensor and the at least one further sensor are accommodated in a housing of the sensor module. An opening in the housing permits communication between the underpressure sensor and the underpressure region of the master cylinder.

Abstract: A bulk wave piezoelectric resonator operating at a predetermined frequency includes a substrate block, having a plane face, a first thickness and consisting of a first material, a resonant plate having a length, width and second thickness, and consisting of a second piezoelectric material, first and second metal electrodes at least partly covering the resonant plate on each side and partly facing each other. The resonant plate is fixed perpendicularly in the vicinity of the plane face of the substrate block so that the width of the resonant plate and the first thickness of the substrate block have the same direction, and the first material, the second material, the first thickness of the block of substrate, the length, the width, the second thickness of the resonant plate are configured for trapping bulk waves at the operating frequency of the resonator and for producing a plane-plane type bulk wave piezoelectric resonator.

Abstract: A sensor assembly for use with a master cylinder is described. The master cylinder comprises an input-side activation element to which a signal transmitter element is coupled. The sensor module comprises a travel sensor for sensing travel carried out by the activation element, and a position sensor for sensing when a predefined position of the activation element is reached.

Abstract: A sensor module for use with a master cylinder of a brake system is described, wherein the master cylinder has an input-side activation element and an underpressure region for communicating with an underpressure brake booster. The sensor module comprises an underpressure sensor for detecting an underpressure in the underpressure region of the master cylinder as well as at least one further sensor for detecting a signal transmitter which is rigidly coupled to the activation element. The underpressure sensor and the at least one further sensor are accommodated in a housing of the sensor module. An opening in the housing permits communication between the underpressure sensor and the underpressure region of the master cylinder.

Abstract: A method for producing a device including at least one integrated circuit and at least one N/MEMS. The method produces the N/MEMS in at least one upper layer arranged at least above a first section of a substrate, produces the integrated circuit in a second section of the substrate and/or in a semiconductor layer arranged at least above the second section of the substrate, and further produces a cover encapsulating the N/MEMS from at least one layer used for production of a gate in the integrated circuit and/or for producing at least one electrical contact of the integrated circuit.

Abstract: A method for producing a device including at least one integrated circuit and at least one N/MEMS. The method produces the N/MEMS in at least one upper layer arranged at least above a first section of a substrate, produces the integrated circuit in a second section of the substrate and/or in a semiconductor layer arranged at least above the second section of the substrate, and further produces a cover encapsulating the N/MEMS from at least one layer used for production of a gate in the integrated circuit and/or for producing at least one electrical contact of the integrated circuit.

Abstract: The reliability of a pressure sensor is improved either by utilization of redundant components. A pair of pressure sensors are mounted upon a single pressure sensor diaphragm. Each of the pressure sensors is connected to one of a pair of signal conditioning circuits. The gain of one of the signal conditioning circuits is a fraction of the gain of the other signal conditioning circuit. The outputs of each of the signal conditioning circuits are compared to a corresponding threshold. If both of the output signals exceed the corresponding threshold, it is determined that a malfunction of the pressure sensor has occured.

Abstract: A pressure sensor is mounted integrally in a hydraulic valve body. The sensor has a base which extends into a bore formed in the valve body. The valve body bore is in communication with a pressurized hydraulic fluid. A first circumferential groove formed in the sensor base carries an O-ring which forms a seal between the sensor and the wall of the valve body bore. A second circumferential groove formed in the sensor base carries a spring ring which extends into a corresponding groove formed in the wall of the valve body groove. The spring ring cooperates with the sensor base and valve body bore grooves to retain the sensor in the valve body bore.

Abstract: The reliability of a pressure sensor is improved either by utilization of redundant composants. A pair of pressure sensors are mounted upon a single pressure sensor diaphragm. The pressure signals generated by the pressure sensors are compared and, if the difference between the signals exceeds a predetermined threshold, it is determined that a malfunction of the pressure sensor has ocurred. Alternately, additional diagnostic testing may be included to detect a malfunctioning sensor.

Abstract: A pressure sensor is mounted upon a hydraulic valve body. The sensor has a base which extends into a bore formed in the valve body. The valve body bore is in communication with a pressurized hydraulic fluid. A cover that is removably attached to the valve body encloses the pressure sensor. A circuit substrate is disposed within the cover and electrically connected to the pressure sensor.