Abstract: The application relates to an ultrasonic transducer comprising a carrier with conductor traces and a piezoelectric element with electrodes, wherein the piezoelectric element has a contact side which is fixed on the carrier, and wherein the conductor traces and the electrodes are electrically coupled via the contact side of the element.

Abstract: A process for isolating lignin from an alkaline process stream of thickened black liquor which is introduced continuously into a lower region of at least one circulation reactor having two reactor zones in concentric arrangement, liquid level of the alkaline process stream in the interior of the reactor is at a level with an upper end of an inner tubular reactor zone, a CO2-containing gas is blown continuously from the bottom into the inner tubular reactor zone of the reactor, wherein the CO2-containing gas is absorbed by the alkaline process stream in the inner circulation reactor zone and offgas is drawn off with residual amounts of the CO2 at the top of the reactor, the process is run at 1 atm, and thickened black liquor with a reduced lignin content together with precipitated lignin present are drawn off optionally after settling at the base of the reactor.

Abstract: A safe Ethernet interface connectable with multiple physical links, for creating deterministic routerless mesh network. Each node can act as relay to implement redundant paths using existing cabling. The nodes are self-synchronising and use a decentralized algorithm without the need of a master clock. Network using the inventive interface can apply time windows to messages according to their features and guarantee a minimum bandwidth and deterministic latency to critical packets.

Abstract: Embodiments relate to a frame structure for a device, comprising a frame comprising a receiving opening, a core structure inserted into the receiving opening and a front layer fixed to the frame and covering a front surface of the core structure. The frame structure further comprises a back layer fixed to the frame and covering a back surface of the core structure, wherein the front layer and the back layer sandwich the core structure in such a manner that bending force acting on the core structure is absorbed by the front layer and the back layer.

Abstract: A passive current sensor includes a pair of electrically conductive busbars, a shunt resistor electrically connecting the busbars, and a carrier having a first pair of voltage drop measuring contacts. At least one of the voltage drop measuring contacts is attached to each of the busbars and forms a direct electrical contact between the at least one voltage drop measuring contact and the busbar.

Abstract: A process for isolating lignin from an alkaline process stream of thickened black liquor which is introduced continuously into a lower region of at least one circulation reactor having two reactor zones in concentric arrangement, liquid level of the alkaline process stream in the interior of the reactor is at a level with an upper end of an inner tubular reactor zone, a CO2-containing gas is blown continuously from the bottom into the inner tubular reactor zone of the reactor, wherein the CO2-containing gas is absorbed by the alkaline process stream in the inner circulation reactor zone and offgas is drawn off with residual amounts of the CO2 at the top of the reactor, the process is run at 1 atm, and thickened black liquor with a reduced lignin content together with precipitated lignin present are drawn off optionally after settling at the base of the reactor.

Abstract: The present invention relates to a membrane plate structure for generating sound waves, the membrane plate structure comprises a vibrating element for generating sound waves and a membrane plate which is coupleable to the vibrating element. The membrane plate has a different width with respect to its length, wherein the width is shorter than the length. The membrane plate comprises an UD layer made of fibers, wherein the fibers of the UD layer are oriented along the width of the membrane plate.

Abstract: A position sensor (10) comprise at least a magneto sensitive element (11-14), a signal evaluation unit (16) that is coupled to the at least one magneto sensitive element (11-14) and is configured to generate an measurement signal (SM), an output stimulation unit (17) configured to generate a set signal (ST) and an interface unit (18) that is coupled at its input side to the signal evaluation unit (16) and the output stimulation unit (17). The interface unit (18) is configured to provide a sensor output signal (SOUT) depending on the measurement signal (SM) in a measurement mode of operation and depending on the set signal (ST) in a calibration mode of operation.

Abstract: A passive current sensor includes a pair of electrically conductive busbars, a shunt resistor electrically connecting the busbars, and a carrier having a first pair of voltage drop measuring contacts. At least one of the voltage drop measuring contacts is attached to each of the busbars and forms a direct electrical contact between the at least one voltage drop measuring contact and the busbar.

Abstract: The present invention relates to a membrane plate structure for generating sound waves. The membrane plate structure includes a first skin layer, a second skin layer and a core layer which is interposed between the first skin layer and the second skin layer. At least one of the first skin layer and the second skin layer is attachable to a vibrating element for generating sound waves. The elastic modulus of the core layer and its density are lower than the elastic modulus and the density of the first skin layer and the second skin layer. The core layer is made of a material which is free of pores.

Abstract: The present invention relates to a membrane plate structure for generating sound waves, the membrane plate structure comprises a vibrating element for generating sound waves and a membrane plate which is coupleable to the vibrating element. The membrane plate has a different width with respect to its length, wherein the width is shorter than the length. The membrane plate comprises an UD layer made of fibers, wherein the fibers of the UD layer are oriented along the width of the membrane plate.

Abstract: A position sensor (10) comprise at least a magneto sensitive element (11-14), a signal evaluation unit (16) that is coupled to the at least one magneto sensitive element (11-14) and is configured to generate an measurement signal (SM), an output stimulation unit (17) configured to generate a set signal (ST) and an interface unit (18) that is coupled at its input side to the signal evaluation unit (16) and the output stimulation unit (17). The interface unit (18) is configured to provide a sensor output signal (SOUT) depending on the measurement signal (SM) in a measurement mode of operation and depending on the set signal (ST) in a calibration mode of operation.

Abstract: The present invention provides for an advantageous external side airbag system (1), comprising at least one airbag (3, 3a-3c) with at least one dedicated inflator (5a-5c). The external airbag system is characterized in that at least one airbag has in a folded state an elongated shape that extends in a longitudinal direction (L) and is configured to be integrated in a side structure (19) of a vehicle, and in particular between a rocker panel (21) and a sill cover (31) of a vehicle.

Abstract: The present invention relates to a membrane plate structure for generating sound waves. The membrane plate structure comprises a first skin layer, a second skin layer, a foam core layer which is interposed between the first skin layer and the second skin layer, and two binding layers. At least one of the first skin layer and the second skin layer is attachable to a vibrating element for generating sound waves. The elastic modulus of the core layer and its density are lower than the elastic modulus and the density of the first skin layer and the second skin layer, so that a sandwich structure is achieved. The Young modulus and the shear modulus of first skin layer, the second skin layer, the core layer and the binding layers are not variating between each other of more than 30% between a temperature 20° C. and 150° C., particularly between 20° C. and 170° C., more particularly 20° C. and 180° C.

Abstract: The present invention relates to a membrane plate structure for generating sound waves. The membrane plate structure comprises a first skin layer, a second skin layer, a foam core layer which is interposed between the first skin layer and the second skin layer, and two binding layers. At least one of the first skin layer and the second skin layer is attachable to a vibrating element for generating sound waves. The elastic modulus of the core layer and its density are lower than the elastic modulus and the density of the first skin layer and the second skin layer, so that a sandwich structure is achieved. The Young modulus and the shear modulus of first skin layer, the second skin layer, the core layer and the binding layers are not variating between each other of more than 30% between a temperature 20° C. and 150° C., particularly between 20° C. and 170° C., more particularly 20° C. and 180° C.

Abstract: The present invention relates to a membrane plate structure for generating sound waves. The membrane plate structure comprises a first skin layer, a second skin layer, a foam core layer which is interposed between the first skin layer and the second skin layer, and two binding layers. At least one of the first skin layer and the second skin layer is attachable to a vibrating element for generating sound waves. The elastic modulus of the core layer and its density are lower than the elastic modulus and the density of the first skin layer and the second skin layer, so that a sandwich structure is achieved. The Young modulus and the shear modulus of first skin layer, the second skin layer, the core layer and the binding layers are not variating between each other of more than 30% between a temperature 20° C. and 150° C., particularly between 20° C. and 170° C., more particularly 20° C. and 180° C.

Abstract: The present invention relates to a membrane plate structure for generating sound waves. The membrane plate structure comprises a first skin layer, a second skin layer, a foam core layer which is interposed between the first skin layer and the second skin layer, and two binding layers. At least one of the first skin layer and the second skin layer is attachable to a vibrating element for generating sound waves. The elastic modulus of the core layer and its density are lower than the elastic modulus and the density of the first skin layer and the second skin layer, so that a sandwich structure is achieved. The Young modulus and the shear modulus of first skin layer, the second skin layer, the core layer and the binding layers are not variating between each other of more than 30% between a temperature 20° C. and 150° C., particularly between 20° C. and 170° C., more particularly 20° C. and 180° C.

Abstract: The present invention provides for an advantageous external side airbag system (1), comprising at least one airbag (3, 3a-3c) with at least one dedicated inflator (5a-5c). The external airbag system is characterised in that at least one airbag has in a folded state an elongated shape that extends in a longitudinal direction (L) and is configured to be integrated in a side structure (19) of a vehicle, and in particular between a rocker panel (21) and a sill cover (31) of a vehicle.

Abstract: A method and an apparatus for introducing at least one pipe for at least one optical cable into a solid bed with the aid of a laying device. At least one groove is milled or cut in the bed and the at least one pipe is inserted in the groove. At least one side wall of the groove is configured with a step for supporting a filler material. After laying the pipe the remaining volume of the groove is filled. Alternatively, the pipe can be formed according to the groove. In addition, the friction between the at least one pipe laid in the groove and the side walls of the groove can be increased so that emergence of the at least one pipe of its own accord from the at least one groove is prevented.

Abstract: A tank for cryogenic liquids, which is intended for installation in motor vehicles and which consists of an outer container and of an inner container suspended in the latter in tension or compression struts. In order to take the contrasting requirements in motor vehicles into account in an optimum way, between the outer container and inner container abutments and supporting faces are additionally provided, which can be spaced apart from one another when the vehicle is at a standstill and can be brought to bear when the vehicle is driving. The abutments inside the outer container Co.-operate with supporting faces on the inner container and can be displaced by means of an actuator.