Abstract: Various embodiments of the teachings herein include a measurement chamber for a smoke detection unit of a smoke detector. The measurement chamber may include: at least a passage for smoke to be detected; and a measurement chamber cover with angular light trap structures on an inside of the measurement chamber. The angular light trap structures are shaped to follow the compact-design principle of a Fresnel stepped lens.

Abstract: Various embodiments of the teachings herein include a measurement chamber for a smoke detection unit of a smoke detector. The measurement chamber may include: at least a passage for smoke to be detected; and a measurement chamber cover with angular light trap structures on an inside of the measurement chamber. The angular light trap structures are shaped to follow the compact-design principle of a Fresnel stepped lens.

Abstract: An embodiment of the invention relates to a cooling system for an imaging apparatus having a gantry for cooling components arranged in the gantry, including a fan and a solid body. The solid body has an inlet opening, and an outlet opening, wherein the inlet opening is larger than the outlet opening. The solid body also has a positive guide, defined by a continuous outer boundary, for a first fluid from the inlet opening to the outlet opening, which continuously transforms the geometry of the inlet opening into the geometry of the outlet opening and defines a flow path for the first fluid, and has a flow channel for a second fluid, which is arranged in heat exchange communication with the flow path, and has an inlet and an outlet for the second fluid.

Abstract: Various embodiments may include a method for the automatic calibration of a smoke detector comprising: mounting the smoke detector in a channel with an aerosol flow, along with a reference smoke detector; calibrating the smoke detector with data received by the reference detector. The reference detector comprises a scattered light receiver and a scattered light transmitter defining a scattered light plane. The aerosol flow through the channel flows through the reference detector transversely to the scattered light plane.

Abstract: Various embodiments may include a method for the automatic calibration of a smoke detector comprising: mounting the smoke detector in a channel with an aerosol flow, along with a reference smoke detector; calibrating the smoke detector with data received by the reference detector. The reference detector comprises a scattered light receiver and a scattered light transmitter defining a scattered light plane. The aerosol flow through the channel flows through the reference detector transversely to the scattered light plane.

Abstract: The embodiments relate to a CT system with a stationary part and a rotatable part, which is supported rotatably in the stationary part. At least one x-ray tube unit cooled by a cooling fluid, an x-ray detector lying opposite the x-ray tube unit, and a cooling device coupled in terms of fluid technology to the x-ray tube unit via a coolant circuit are disposed in the rotatable part. A cooling air channel, through which cooling air is able to be fed into the rotatable part, and an exhaust air channel, through which heated exhaust air is able to be taken away from the rotatable part, are disposed in the stationary part. In accordance with the embodiments, at least one overpressure relief valve is disposed in the coolant circuit, through which the cooling fluid is able to be conveyed away in the exhaust air channel.

Abstract: A CT system is disclosed for generating tomographic recordings of an examination object. In an embodiment, the CT system includes at least a gantry with a rotatable support for receiving components of the CT system, and a cooling system for cooling the components secured to the gantry with at least one air duct. In at least one embodiment, an incoming-air duct of the cooling system is divided into at least two segments to ensure uniform pressure distribution in the incoming-air duct.

Abstract: A CT system is disclosed for generating tomographic recordings of an examination object. In an embodiment, the CT system includes at least a gantry with a rotatable support for receiving components of the CT system, and a cooling system for cooling the components secured to the gantry with at least one air duct. In at least one embodiment, an incoming-air duct of the cooling system is divided into at least two segments to ensure uniform pressure distribution in the incoming-air duct.

Abstract: The embodiments relate to a CT system with a stationary part and a rotatable part, which is supported rotatably in the stationary part. At least one x-ray tube unit cooled by a cooling fluid, an x-ray detector lying opposite the x-ray tube unit, and a cooling device coupled in terms of fluid technology to the x-ray tube unit via a coolant circuit are disposed in the rotatable part. A cooling air channel, through which cooling air is able to be fed into the rotatable part, and an exhaust air channel, through which heated exhaust air is able to be taken away from the rotatable part, are disposed in the stationary part. In accordance with the embodiments, at least one overpressure relief valve is disposed in the coolant circuit, through which the cooling fluid is able to be conveyed away in the exhaust air channel.

Abstract: A brake disc pot for a motor vehicle disc brake having one or two brake discs includes a device for the centered attachment of the brake disc and a device for guiding cooling air in the radial direction toward the brake disc. The brake disc pot has recesses on its periphery.

Abstract: The present embodiments relate to an arrangement for the contactless transmission of first electrical signals, second electrical signals and electrical energies between a fixed gantry part of a computed tomography system and a gantry part that may be rotated around an axis of rotation. The arrangement includes a first annular-shaped carrier ring arranged on the rotatable gantry part, at least a first conductor element arranged in or on the first annular-shaped carrier ring to receive the electrical energy, and at least a second conductor element arranged in or on the first annular-shaped carrier ring to output the first electrical signals.

Abstract: A brake disc pot for a motor vehicle disc brake having one or two brake discs includes a device for the centered attachment of the brake disc and a device for guiding cooling air in the radial direction toward the brake disc. The brake disc pot has recesses on its periphery.

Abstract: An x-ray radiator has a radiator housing from which x-ray radiation originating from a focus is emitted. A pre-diaphragm is disposed in the beam path of the x-ray radiation and has a diaphragm opening in or on the radiator housing. The pre-diaphragm is provided with at least one additional slit through which x-ray radiation can strike on at least one element for determination of the position of the focus. This element is sensitive to x-ray radiation. An x-ray device has such an x-ray radiator and a computed tomography apparatus has such an x-ray device.

Abstract: An x-ray computed tomography apparatus has an x-ray source that can be rotated around a system axis and a diaphragm that is disposed downstream from the x-ray source in the ray propagation direction for gating a fan-shaped ray beam that irradiates a subject. The diaphragm has two gating elements in each of which an absorber element is held, clamped on a carrier at two points in a clamping device provided on the carrier.

Abstract: A fastening device for a diaphragm for x-ray radiation has a base plate provided with an opening for the passage of x-ray radiation, the base plate being able to accommodate load forces, and at least one covering device which can be arranged for enclosure of a space on the base plate. A diaphragm can be housed in the space. A computer tomography apparatus embodies such a fastening device for a diaphragm.

Abstract: A method for measuring the injection rate of an injection valve for liquids, preferably for liquid fuel, in which the injection valve injects the liquid into a liquid-filled measurement volume, the measurement volume being closed off on all sides and a pressure sensor being located in the measurement volume. From the measured pressure values or by a separate measurement, the speed of sound is determined and thus the injection quantity or the course over time of the injection rate is calculated. The apparatus includes a measurement volume, an injection valve, which protrudes with at least one injection opening into the measurement volume, and a pressure sensor, which is located in the pressure node of the first natural pressure oscillation of the measurement volume.

Abstract: A method for measuring the injection rate of an injection valve for liquids, preferably for liquid fuel, in which the injection valve injects the liquid into a liquid-filled measurement volume, the measurement volume being closed off on all sides and a pressure sensor being located in the measurement volume. From the measured pressure values or by a separate measurement, the speed of sound is determined and thus the injection quantity or the course over time of the injection rate is calculated. The apparatus includes a measurement volume, an injection valve, which protrudes with at least one injection opening into the measurement volume, and a pressure sensor, which is located in the pressure node of the first natural pressure oscillation of the measurement volume.

Abstract: An x-ray computed tomography apparatus has an x-ray source that can be rotated around a system axis and a diaphragm that is disposed downstream from the x-ray source in the ray propagation direction for gating a fan-shaped ray beam that irradiates a subject. The diaphragm has two gating elements in each of which an absorber element is held, clamped on a carrier at two points in a clamping device provided on the carrier.

Abstract: A fastening device for a diaphragm for x-ray radiation has a base plate provided with an opening for the passage of x-ray radiation, the base plate being able to accommodate load forces, and at least one covering device which can be arranged for enclosure of a space on the base plate. A diaphragm can be housed in the space. A computer tomography apparatus embodies such a fastening device for a diaphragm.

Abstract: An x-ray radiator has a radiator housing from which x-ray radiation originating from a focus is emitted. A pre-diaphragm is disposed in the beam path of the x-ray radiation and has a diaphragm opening in or on the radiator housing. The pre-diaphragm is provided with at least one additional slit through which x-ray radiation can strike on at least one element for determination of the position of the focus. This element is sensitive to x-ray radiation. An x-ray device has such an x-ray radiator and a computed tomography apparatus has such an x-ray device.