摘要:
A microwave oscillator includes a waveguide that is short-circuited on one side and a diode arranged therein, which receives its supply voltage by way of a coupling pin passed through a waveguide wall. At least one adjustment pin, extends into the waveguide and is adjustable in its penetration depth, for tuning the oscillator frequency. Because the adjustment pin is aligned at an acute angle to the coupling pin, the oscillator frequency can be tuned very precisely.
摘要:
A folding shutter arrangement having three or more rigid folding shutter elements having element edges that bend out and element edges that do not bend out in alternation. A first folding shutter element can be fastened to a building so as to be pivotable about a first axis near a element edge that does not bend out. A second folding shutter element is pivotably retained about a second axis near a second element edge that does not bend out. Adjacent folding shutter elements are pivotably connected to each other in pairs at the third element edges by a bend-out joint. A driving element is provided which drives at least one of the element edges in the opening or closing direction, and which forcibly pivots the folding shutter elements connected to at least one of the element edges that do not bend out.
摘要:
In a folding shutter arrangement having three or more inherently rigid folding shutter elements (12) having element edges that bend out and element edges that do not bend out in alternation, a first folding shutter element (12A) is or can be fastened indirectly or directly to the building (1) so as to be pivotable about a first axis (12A′), which is stationary or nearly stationary with respect to a building (1), near a (first) element edge (13A) that does not bend out. A second folding shutter element (12B) is pivotably retained about a second axis (12B′), which can be moved perpendicularly to itself, near a second element edge (13B) that does not bend out, and can be moved along guides (16A, 16B) arranged perpendicular to the second element edge (13B) in pairs. Adjacent folding shutter elements (12A, 12B; 12C, 12D; . . . ) are pivotably connected to each other in pairs at the third element edges (15A, 15B) thereof, which bend out and which are opposite from and parallel to the first and second element edges (13A, 13B; . . . ), by means of a bend-out joint (14A, 14B; . . . ). Additional folding shutter elements are connected in pairs to the preceding folding element pair and/or a last folding shutter element freely protruding at the end is pivotably connected to the folding element pair(s) near the second, fourth, or further element edge (13B; . . . ) that does not bend out. At least one driving element (30) is provided, which can be moved along at least one of the guides (16A, 16B) and which drives at least one, preferably the last, of the second, fourth, or further element edge (13B, . . . ) that does not bend out, in the opening or closing direction, and which forcibly pivots the folding shutter elements (12B, 12C; . . . ) connected to at least one of the element edges (13B; . . . ) that do not bend out, in pairs in the opening or closing direction by means of at least one coupling element (32A, 32B, 32C).
摘要:
A method and a device for warning the driver of a motor vehicle. An object detector is provided, which detects preceding vehicles and ascertains their distance and relative velocity with respect to the host vehicle and supplies these to an evaluation device. The evaluation device assumes that the preceding vehicle would perform a deceleration and ascertains as a further function of the variables measured by the object detector and the driver's reaction time and the host vehicle's maximum possible deceleration whether a collision with the preceding vehicle would be avoidable. If an unavoidability of a collision is recognized, then a driver warning device is activated.
摘要:
A radar system for motor vehicles, having an antenna, a first processor which is developed to transform signals supplied by the antenna via a primary signal path into a spectrum, and a second processor for the additional evaluation of the spectrum, wherein at least a part of the signals received by the antenna is able to be supplied to the second processor via a redundant signal path while by-passing the first processor, and the second processor, on its part, is designed to transform these signals into a spectrum.
摘要:
A device for a front-end component part of a motor vehicle, behind which a radar transmitter/receiver is fastened in such a way that the latter is not visible from in front. In winterish surroundings, ice and snow deposits may occur on the front component part, whereby the functionability of the radar sensor may be impaired. It is possible to remove and/or prevent these precipitation deposits on the front component part.
摘要:
A device and a method for triggering at least one deceleration device and/or one output-determining actuator element of a vehicle propulsion system, in particular for automatic longitudinal vehicle regulation, a first surroundings sensing device being provided, which delivers longitudinal value-optimized measured values, a second surroundings sensing device being provided, which delivers object lateral dimension-optimized measuring values, and an analyzer device being provided, which receives the output signals of the first and second surroundings sensing devices and the measured values of the first and second surroundings sensing devices being used for object identification. The device and the method are furthermore suitable for initiating or performing vehicle deceleration for collision avoidance or for alleviating the severity of a collision.
摘要:
In a coagulator for systems for the purifying of exhaust gases of fossil fuels, in particular of exhaust gases from diesel internal-combustion engines, which has a housing (10), poled as counter-electrode, an electrode (11) arranged concentrically in the housing (10) and at high volotage and an electrically heatable insulator (13) for the insulated leading of the electrode (11) through the housing (10), the insulator (13) is designed in two parts for achieving a great high voltage resistance with relatively small overall dimensions and consists of a ceramic inner tube (17) and a ceramic protective tube (18) surrounding the latter. The heating conductor track (19) required for heating is applied in the shape of a coil as a thick-film conductor to the circumference of the inner tube (17) and the protective tube (18) is sintered on to the inner tube (17) in such a way that the parting line (14) between inner and protective tube (17, 18) is gas-tight (FIG. 1).
摘要:
A folding shutter arrangement having three or more rigid folding shutter elements having element edges that bend out and element edges that do not bend out in alternation. A first folding shutter element can be fastened to a building so as to be pivotable about a first axis near an element edge that does not bend out. A second folding shutter element is pivotably retained about a second axis near a second element edge that does not bend out. Adjacent folding shutter elements are pivotably connected to each other in pairs at the third element edges by a bend-out joint. A driving element is provided which drives at least one of the element edges in the opening or closing direction, and which forcibly pivots the folding shutter elements connected to at least one of the element edges that do not bend out.
摘要:
A radar sensor for motor vehicles includes a plurality of transmission and receiving antennas, which differ in their azimuthal directivity characteristic and to which a separate mixer is assigned, which mixes a transmitted signal with a received signal, at least one of the mixers being a transfer mixer, and at least one other of the mixers having a lower transfer output, wherein the assignment of the transmission and receiving antennas is asymmetrical with respect to the mixers differing in their transfer output.