摘要:
A driver circuit for the generation of a switching voltage, particularly a negative switching voltage, which is suitable for GaAs technology. Field effect transistors whose electric properties can vary within a wide range and ohmic resistances that do not have to be adjusted later are used. The driver circuit is particularly suited for the selection of HF components.
摘要:
The invention relates to an electro-hydraulic actuator, especially for an antilock brake system, which directly converts electrical input energy into hydraulic useful energy and has an especially simple and problem-free design as well as very rapid adjustability. A working chamber of the actuator according to the invention is filled with an electrostrictive fluid and provided with an electrically controlled electrode system to generate an electrical field that causes a change in pressure and/or volume in the electrostrictive fluid.
摘要:
The present invention pertains to a radar range finder for high-precision, contactless range measurement, which is based on the FMCW principle and operates with digital signal processing at a limited frequency shift. One exemplary embodiment is described.
摘要:
Cryosystem for cryogenic liquids which contain small amounts of foreign fluids with higher melting and boiling points, wherein the cryosystem comprises at least one tank, pipelines and assembly units and is used under defined gravitation conditions. The pipelines slope, at least in some areas, toward the tank, and areas of the pipelines and assembly units, from which the cryogenic liquid and the foreign fluids cannot flow back into the tank under the action of gravity, are provided with drain openings and drain lines, which open into the tank or into at least one additional collection tank.
摘要:
Monitoring an area with the aid of a frequency-modulated continuous-wave radar includes emitting a frequency-modulated continuous-wave transmitting signal with at least one transmitting antenna having a directional pattern whose main azimuthal direction depends on the frequency of the transmitting signal. Related to a predeterminable direction, an azimuthal region is selected, and in the selected region, an azimuthal swivelling of the directional pattern of the transmitting antenna is carried out by changing the frequency of the transmitting signal. Also in the selected region, each azimuthal value is assigned a frequency value of the transmitting signal. The selected region is divided into a predeterminable number of azimuthal increments adjoining one another, and in each of the increments, a monotonous change of the frequency of the transmitting signal occurs. A reflected portion of the transmitting signal, which is reflected by the area to be monitored, is received with a receiving antenna, and a coherent signal processing for evaluating the receiving signal for each increment coherent signal processing is carried out.
摘要:
A vehicle's restraint system for passengers such as airbags, belt tighteners or similar devices to protect the passengers in case of a crash against injury including an electronic sensor circuit for the release of the restraint system, only upon the occurrence of predetermined conditions. An energy supply is provided for supply of the electronic sensor circuit with a proper and set voltage value to be monitored at least from time to time and compared with a reference voltage wherein at least an emergency voltage supply is to be held in a steady state such as at the set voltage value to provide power to electrically ignite a pyrotechnic or propellant charge if triggered by said electronic sensor circuit, in the case that one or more of said predetermined conditions evaluated in said electronic sensor circuit by comparing it with chosen threshold values are fulfilled, indicating that a crash event is detected by an acceleration responsive signal generator in said electronic sensor circuit. An electric cell is provided in communication with said energy supply for recharging at least the emergency source thereof to said steady state. An optical connection is provided for optical connection to said opto-electric cell including a light emitting element connected to a light receiving element via a light guide so arranged as to achieve said recharging of one of the sources being accumulateable when a light source emits light.
摘要:
The protective cladding for a mono-mode directional coupler made of at least two incoming and outgoing fiber optic waveguides which are fused to one another along a coupling segment comprises at least two open cladding parts which can be connected to form a tube-shaped cladding. The material of the cladding parts has the same coefficient of expansion as the waveguide material of the mono-mode directional coupler. The protective cladding, being mechanically tightly connected with the incoming and outgoing fiber optic waveguides while leaving open the coupling segment of the mono-mode directional coupler, is closed off in a gas-tight manner such that in the case of temperature changes, there are no mechanical tensions in the coupling segment.
摘要:
A rotating antenna synthetic aperture radar apparatus having a module in the processor circuit in which are stored image definition values for reducing image errors. The module acts upon process circuits to subdivide the distance range illuminated by the antenna into individual distance intervals and to determine the reference functions in these distance intervals.
摘要:
An imaging system for a missile rotating about a principal axis (A) has an imaging lens arrangement 6 and a detector arrangement 8 situated in the focal plane of the imaging lens arrangement for the generating of electric image signals which are processed while the respective rotating position of the missile is taken into account to achieve a high image definition in a manner that is very simple technically as well as with respect to signal processing techniques, the detector arrangement and the imaging lens arrangement with their optical axis are arranged to carry out the same motion as the missile while rotating about the principal axis of the missile, and the detector arrangement comprises one or several detector row(s) which extend from the image field edge of the imaging lens arrangement toward the missile axis.
摘要:
An arrangement is provided for the adjusting of a mounting part on a carrier in a statically determined position which can be adjusted in a rotatory and translatory manner in three axes with respect to the carrier. The arrangement comprises at least three adjusting units which are arranged in an offset manner with respect to one another between the carrier and the mounted part, each of which comprises two connecting parts which can be translatorily adjusted relative to one another in two axes and are constructed to be rotatorily in three axes as well as translatorily in one axis freely movable sloped to the adjusting plane of the connecting parts. The two connecting parts are adjustably coupled with one another by a double disk arrangement which comprises a primary disk which is disposed on one connecting part so that its rotating position can be adjusted in the adjusting plane of the connecting parts, and a secondary disk which is surrounded by the primary disk in the disk plane, which is disposed on the primary disk so that its rotating position can be adjusted about an axis (B) which is eccentric to the axis of rotation (A) of the primary disk, at which secondary disk the other connecting part is arranged at a distance from the axis of rotation of the secondary disk and is connected with the mounting part via a freely movable combined ball joint slide connection.