Abstract: The invention relates to a method for performing an x-ray fluorescence analysis, in which method a primary radiation (16) is directed at a specimen (12) by an x-radiation source (14) and in which method a secondary radiation (18) emitted by the specimen (12) is detected by a detector (20) and evaluated by means of an evaluating unit (21), wherein at least one filter (23) having at least one filter layer (25) forming a filter plane is brought into the beam path of the secondary radiation (18) and acts as a band-pass filter in dependence on an angle ? of the filter layer (25) to the secondary radiation (18) and an interfering wavelength of the secondary radiation (18) is coupled out by Bragg reflection, the angle ? of the filter layer (25) of the filter (23) is set by means of a setting apparatus (31) to reflect at least one interfering wavelength of the secondary radiation (18) by Bragg reflection, and the coupled-out wavelength of the secondary radiation (18) is detected by a second detector (32) and the sign

Abstract: The invention relates to a system for the dynamic regulation of a regenerative energy generation installation comprising a plurality of energy generation units. The system has a signal input for receiving a pre-determined set value, a measuring device for measuring an actual value on an output of the energy generation installation, and a regulating device for regulating the energy generation units based on the set value and the measured actual value.

Abstract: The invention relates to a method for performing an x-ray fluorescence analysis, in which method a primary radiation (16) is directed at a specimen (12) by an x-radiation source (14) and in which method a secondary radiation (18) emitted by the specimen (12) is detected by a detector (20) and evaluated by means of an evaluating unit (21), wherein at least one filter (23) having at least one filter layer (25) forming a filter plane is brought into the beam path of the secondary radiation (18) and acts as a band-pass filter in dependence on an angle ? of the filter layer (25) to the secondary radiation (18) and an interfering wavelength of the secondary radiation (18) is coupled out by Bragg reflection, the angle ? of the filter layer (25) of the filter (23) is set by means of a setting apparatus (31) to reflect at least one interfering wavelength of the secondary radiation (18) by Bragg reflection, and the coupled-out wavelength of the secondary radiation (18) is detected by a second detector (32) and the sign

Abstract: An overhead reading lamp for a passenger seat, in particular in an aircraft cabin, includes a first plurality of light sources, each of which emits light along a center line. The lamp also includes, a holding device which immovably secures the first plurality of light sources so as to be disposed in a first row in such a way that the center lines of the light sources of the first plurality of light sources lie in one plane and are inclined relative to one another. The lamp further includes an, and an activation device, which is connected to the first plurality of light sources and devised to selectively activate in each case one of the light sources of the first plurality of light sources.

Abstract: The present invention concerns a system for servicing a plurality of service positions which are assigned to a plurality of installation elements, in particular passenger seats in an aircraft, comprising: a plurality of service units, in particular lighting units, wherein the number of service units exceeds the number of service positions to be serviced, and a control unit, wherein the control unit is adapted to receive a respective item of control information including an identification in respect of an installation element and to control a predetermined service unit on the basis of the identification, and a method of servicing a plurality of service positions which are assigned to a plurality of installation elements, in particular passenger seats in an aircraft, and a corresponding computer program.

Abstract: The invention relates to a system for the dynamic regulation of a regenerative energy generation installation comprising a plurality of energy generation units. Said system has a signal input for receiving a pre-determined set value, a measuring device for measuring an actual value on an output of the energy generation installation, and a regulating device for regulating the energy generation units based on the set value and the measured actual value.

Abstract: An overhead reading lamp for a passenger seat, in particular in an aircraft cabin, comprises a first plurality of light sources (10, 12, 14, 16, 18, 20, 22, 24, 26, 28, 30), each of which emits light along a centre line (32, 34, 36, 38, 40, 42, 44, 46, 48, 50, 52), a holding device (54), which immovably secures the first plurality of light sources (10, 12, 14, 16, 18, 20, 22, 24, 26, 28, 30) disposed in a first row (56) in such a way that the centre lines (32, 34, 36, 38, 40, 42, 44, 46, 48, 50, 52) of the light sources of the first plurality of light sources (10, 12, 14, 16, 18, 20, 22, 24, 26, 28, 30) lie in one plane and are inclined relative to one another, and an activation device (62), which is connected to the first plurality of light sources (10, 12, 14, 16, 18, 20, 22, 24, 26, 28, 30) and devised to selectively activate in each case one of the light sources of the first plurality of light sources (10, 12, 14, 16, 18, 20, 22, 24, 26, 28, 30).

Abstract: The present invention relates to an illumination strip for illuminating a handrail recess that itself at the same time forms a handrail; to a hatrack for installation in an aircraft cabin with a correspondingly designed handrail recess that at least in sections can be illuminated; as well as to the use of an illumination strip or a hatrack in an aircraft. The illumination strip comprises a carrier module for accommodating the illumination unit and illumination units accommodated by the carrier module. The carrier module is strip shaped and includes a positive locking member to secure the carrier module of the illumination strip into the handrail in an exchangeable manner.

Abstract: The present invention concerns a system for servicing a plurality of service positions which are assigned to a plurality of installation elements, in particular passenger seats in an aircraft, comprising: a plurality of service units, in particular lighting units, wherein the number of service units exceeds the number of service positions to be serviced, and a control unit, wherein the control unit is adapted to receive a respective item of control information including an identification in respect of an installation element and to control a predetermined service unit on the basis of the identification, and a method of servicing a plurality of service positions which are assigned to a plurality of installation elements, in particular passenger seats in an aircraft, and a corresponding computer program.

Abstract: The present invention relates to an illumination strip by means of which a handrail recess that itself at the same time forms a handrail can be illuminated; to a hatrack for installation in an aircraft cabin with a correspondingly designed handrail recess that at least in sections can be illuminated; as well as to the use of an illumination strip or a hatrack in an aircraft. The illumination strip comprises carrier module for accommodating an illumination means and a multitude of illumination means that are accommodated by the carrier module. The carrier module is strip shaped and comprises at least one positive locking means by means of which, for the purpose of illuminating the handrail recess, the carrier module can be fitted into the handrail so as to provide a positive-locking fit and so as to be exchangeable.

Abstract: An aircraft electrical power system includes a monitored load (e.g. group of lightbulbs) connected through a sub-system power unit and a power distribution center to a power bus. A current monitor of the power distribution center is able to detect a total failure of the sub-system power unit and its connected monitored load, but is not able directly to detect the failure of a single load component (e.g. single lightbulb). The sub-system power unit includes a fault detector able to detect a fault or failure of a single load component (e.g. single lightbulb) in the monitored load. When the fault detector detects such a fault, the sub-system power unit generates a modulated current signal in the current drawn by the sub-system power unit, with a magnitude greater than the detection threshold of the power distribution center, which thus recognizes the detected fault based on the modulated current signal.