摘要:
A semiconductor laser component includes a semiconductor body with an SCH configuration which is suitable for generating an electromagnetic radiation and in which an active layer sequence with a quantum well structure is provided between a first outer cover layer of a first conductivity type and a second outer cover layer of the first conductivity type. A first denatured transition layer of a second conductivity type and a second denatured transition layer the first conductivity type are provided between the active layer sequence and the second outer cover layer.
摘要:
The guide shoe according to the invention for cutting machines with a pintype drive has an insertion pocket in which a coupling piece engages from above, which coupling piece is arranged on a guide arm of the cutting machine and to which the guide shoe is attached so as to be pivotable by means of a transverse bolt which passes through the insertion pocket. In order also to allow the guide shoe to be pivotable about a vertical axis, the coupling piece is provided with an upright vertical journal which engages from below in a corresponding bearing hole on the guide arm. In this case, in a preferred embodiment, the bearing journal is decoupled from transverse forces which are transmitted between the guide arm and the guide shoe via a transverse-force piece arranged on the coupling piece.
摘要:
A conveyor chute for chain scraper conveyors, in particular stope conveyors, having a bottom aperture provided in the conveyor bottom forming an inspection or repair aperture and closed by way of a closure panel during the conveying operation. The closure panel is guided in slot-shaped apertures of the two side profiles of the conveyor chute by way of their opposite panel edges and secured against displacement by a locking device. The two side profiles of the conveyor chute are each formed of two profile strips in superimposed array which are not interconnected to the conveyor bottom in the region of the bottom aperture. The two side profiles form the slot-shaped apertures in which the locking of the closure panel in the closed position takes place only on one of the two side profiles.
摘要:
The invention relates to a multipart chain fixing device for securing at least one conveyor chain on a trough element of especially an underground scraper chain conveyor. The fixing device comprises a bridge part (60), which has a bridge bar (62) that at least partially overlaps the conveyor chain in a positive-locking manner and ends in two lateral side end portions (61). It also comprises two side parts (70), which are fastenable to the trough element pan and to which the side end portions 61 are releasably securable by positive-locking means. For providing a chain fixing device, inclusive of the associated trough element and the individual components, which offer increased safety in underground usage, combined with simple assembly, the side parts (70) are releasably fastenable in a positive-locking manner in cavities in the conveyor floor of the trough element.
摘要:
A micromechanical component includes: at least one micromirror; and an integrated photodiode. The micromechanical component is part of a microprojector which further includes a light source. The integrated photodiode of the micromechanical component receives light from the light source.
摘要:
A pan section for combined conveying and winning apparatuses having a bottom run and a top run for guiding driver elements of a conveyor chain, as well as a welded frame structure which has two side cheeks which consist of one-piece rolled profiles. The rolled profiles have a constant profile shape with a bottom leg and a top leg, which are angled outwards in the assembled state, and an intermediate leg being provided with an offset for supporting and welding at least one intermediate plate. The pan section further includes a substructure connected to the bottom leg of the rolled profiles to connect both bottom legs to one another at a distance from the intermediate bottom. The substructure also has mounting pieces positioned at the ends below the bottom legs for transverse-force transmission means.
摘要:
A simple and cost-effective manufacturing method for hybrid integrated components including at least one MEMS element, a cap for the micromechanical structure of the MEMS element, and at least one ASIC substrate, using which a high degree of miniaturization may be achieved. The micromechanical structure of the MEMS element and the cap are manufactured in a layered structure, proceeding from a shared semiconductor substrate, by applying at least one cap layer to a first surface of the semiconductor substrate, and by processing and structuring the semiconductor substrate proceeding from its other second surface, to produce and expose the micromechanical MEMS structure. The semiconductor substrate is then mounted with the MEMS-structured second surface on the ASIC substrate.
摘要:
A wheel electronic system and a method for operating a wheel electronic system. The wheel electronic system interacts with a tire secured to a vehicle and produces and emits, based on a captured trigger signal, a message containing information on at least one tire parameter measured with the wheel electronic system. The wheel electronic system is operated in an operational mode in which the system is configured to periodically capture the trigger signals in a first time period. Based on a predetermined first operational ratio of the vehicle, the wheel electronic system automatically switches to a test mode, in which the wheel electronic system is configured to periodically capture the trigger signals in a second time period which is substantially shorter than the first time period.
摘要:
Both a method and a use by this method of an apparatus for detecting blocking of a direct current motor (10), in particular a direct current motor (10) for a blower of a motor vehicle, is presented. The direct current motor (10) is deactivated by a computer unit (20) with the aid of a switching means (18) for a defined time period (Toff). Within the defined time period (Toff), at least one subsequent time (ta, tb), an induced voltage (U) of the direct current motor (10) is measured and forwarded to the computer unit (20). The direct current motor (10) remains deactivated if the induced voltage (U) undershoots a predetermined threshold value (Uth), or the direct current motor (10) is reactivated if the induced voltage (U) of the direct current motor (10) does not undershoot the predetermined threshold value (Uth).
摘要:
Exemplary methods and devices of an electrical operating device, an electrical appliance having an electrical operating device, and a method for switching an electrical appliance, are provided. For example, an electrical operating device embodiment may include an acceleration sensor, an electrical switching means, an electric line, and a signal line. The signal line may be associated with the acceleration sensor and the electrical switching means. The acceleration sensor may be designed so that at a predefinable acceleration, a signal is generated by which the electrical switching means is activated. The electric line is switchable using the electrical switching means.