Abstract: A curvilinear ultrasound transducer and a method of manufacturing the same. The method includes providing a piezoelectric block having an upper side and a lower side opposite to the upper side; cutting the piezoelectric block at a plurality of positions forming a plurality of ultrasound transducer elements, the plurality of ultrasound transducer elements separated by a plurality of gaps; allowing the plurality of gaps to be filled with a first gas resulting in a plurality of gas-filled gaps; arranging an acoustic matching layer facing the upper side of the piezoelectric block; arranging the piezoelectric block and the first acoustic matching layer between a curvilinear upper surface of a support structure and a pressure element; and pressing the piezoelectric block and the first acoustic matching layer with the support structure and the pressure element to curvilinearly shape the piezoelectric block and first acoustic matching layer.

Abstract: An endoscope including a handle, an insertion tube, a first flexible cable and an ultrasound transducer for receiving and transmitting ultrasound, the ultrasound transducer including an ultrasound transducer array attached to a distal end of the insertion tube, the handle being attached to a proximal end of the insertion tube, the first flexible cable is extending from the handle and being electrically connected to the ultrasound transducer array. The ultrasound transducer includes an electrical circuit for receiving and providing electrical signals to the ultrasound transducer array. The electrical circuit includes a flexible base section, a plurality of first flexible electrical conductors, and a contact section comprising a plurality of second electrical contacts. The flexible base section and the plurality of first flexible electrical conductors is a single flexible printed circuit and the first flexible electrical conductors extend from the flexible base section and into the first flexible cable.

Abstract: An ultrasound transducer including a convex ultrasound transducer array including a plurality of ultrasound transducer elements, an electrical circuit for receiving and providing electrical signals to the plurality of ultrasound transducer elements, and a support structure having a convex upper surface facing the plurality of ultrasound transducer elements and extending in a direction parallel to a first axis. The electric circuit includes a plurality of first flexible conductors bend around the support structure at a first curve section and at a second curve section, the first curve section being separate from the second curve section.

Abstract: A method for bonding two plates together for a fuel cell, wherein the method comprises applying an adhesive to the surface of at least one of the plates and pressing the two plates together with the adhesive in between. The adhesive contains a mixture in the range of 0.01% to 30% PVDF and a solvent, and optionally a surfactant.

Abstract: The invention relates to a method of controlling a wind turbine comprising one or more blades attached to a rotor hub, the one or more blades being arranged to pitch relative to the hub, the method comprising the steps of obtaining a blade load signal comprising data on an absolute load on the one or more blades; processing the blade load data to detect a high thrust wind event, and generating a control signal comprising a pitch contribution for affecting the blades to pitch out of the wind in response to the detected wind event. The invention also relates to a wind turbine, a control system for a wind turbine and a computer program product being adapted to enable a computer system to perform the method of the invention.

Abstract: A wind turbine is controlled in response to an estimate of vertical and/or horizontal wind shear. A tilt moment is estimated from flapwise and edgewise blade bending moments, azimuth and blade pitch positions and used to estimate vertical wind shear. A yaw moment is also estimated from flapwise and edgewise blade bending moments, azimuth and pitch position and used to estimate horizontal wind shear. A tip speed ratio is determined from an estimate of wind velocity over the rotor plane and is used to set a blade pitch angle which is passed to a blade pitch controller. The pitching may be collective or individual. In the latter case, the tip speed ratio is determined from a plurality of rotor plane positions to derive a cyclic pitch reference for each blade.

Abstract: A method of controlling a wind turbine comprising blades attached to a rotor hub for rotation in a rotor plane and a control system for individually pitching the blades relative to the hub. The method comprises dividing the rotor plane into a number of sectors, determining the individual sectors for each blade during the rotation by means of an azimuth angle sensor, and obtaining blade sensor data from a blade sensor on an individual blade relating to a sector, and comparing the obtained data with data relating to the same sector and representing blade sensor data on other blades. When an event is detected in a given sector, an individual pitch contribution is determined in the sector, and the blades are then pitched according to this individual pitch contribution for that given sector at least partly during passage of the sector.

Abstract: A wind turbine is controlled in response to an estimate of vertical and/or horizontal wind shear. A tilt moment is estimated from flapwise and edgewise blade bending moments, azimuth and blade pitch positions and used to estimate vertical wind shear. A yaw moment is also estimated from flapwise and edgewise blade bending moments, azimuth and pitch position and used to estimate horizontal wind shear. A tip speed ratio is determined from an estimate of wind velocity over the rotor plane and is used to set a blade pitch angle which is passed to a blade pitch controller. The pitching may be collective or individual. In the latter case, the tip speed ratio is determined from a plurality of rotor plane positions to derive a cyclic pitch reference for each blade.

Abstract: The invention relates to a method of controlling a wind turbine comprising one or more blades attached to a rotor hub, the one or more blades being arranged to pitch relative to the hub, the method comprising the steps of obtaining a blade load signal comprising data on an absolute load on the one or more blades; processing the blade load data to detect a high thrust wind event, and generating a control signal comprising a pitch contribution for affecting the blades to pitch out of the wind in response to the detected wind event. The invention also relates to a wind turbine, a control system for a wind turbine and a computer program product being adapted to enable a computer system to perform the method of the invention.

Abstract: A method of controlling a wind turbine comprising blades attached to a rotor hub for rotation in a rotor plane and a control system for individually pitching the blades relative to the hub. The method comprises dividing the rotor plane into a number of sectors, determining the individual sectors for each blade during the rotation by means of an azimuth angle sensor, and obtaining blade sensor data from a blade sensor on an individual blade relating to a sector, and comparing the obtained data with data relating to the same sector and representing blade sensor data on other blades. When an event is detected in a given sector, an individual pitch contribution is determined in the sector, and the blades are then pitched according to this individual pitch contribution for that given sector at least partly during passage of the sector.

Abstract: The invention relates to an electronic system for anti-theft protection of goods. The system comprises: a unit for detecting a metallic material in a first detection zone; a unit for detecting a magnetic or magnetisable material in a second detection zone; and a control unit. The control unit is capable of receiving information from the units for detecting metallic and magnetic material when the one or both of these units detect(s) a metallic or a magnetic material, respectively, in the respective detection zones. The control unit is further programmable to the effect that the control unit can be programmed to emit a signal which depends on whether it receives information about the detection of metallic and/or magnetic material.

Abstract: Embodiments of the invention are generally related to optimizing performance of a wind power plant. A controller may be configured to determine that a first wind turbine is in the wake of a second wind turbine and that power production at the first wind turbine can be increased by reducing power production at the second wind turbine. The controller may be further configured to cause the second wind turbine to reduce power production.

Abstract: In order to provide an electronic communication system (100), having at least one base station (10) with at least one antenna unit (16), in particular in coil form; and at least one transponder station (40), in particular in data carrier form, with at least one antenna unit (32), in particular in coil form, for receiving electromagnetic radiation (26) in form of power to be supplied by the base station (10) with a particular carrier frequency and for exchanging data signals (22, 24) with the base station (10), wherein the receiving frequency (f) can be adapted, in particular optimized, during operation, it is proposed that the electronic communication system (100) comprises at least one controller unit (36) for controlling the receiving frequency (f) of the antenna unit (32) of the transponder station (40) during operation of the communication system (100), in particular for adapting the resonant frequency of the antenna unit (32) of the transponder station (40) to the carrier frequency defined by the base st