摘要:
A device and method for data transmission between a transducer and a processing unit which are coupled by one or several signal transmission lines, to selectively activate at least two different modes of operation of the transducer. The device includes a comparator unit which identifies the respectively activated mode of operation by comparing signals present on at least one signal transmission line with predetermined reference signals.
摘要:
A system for determining a signal running time between a position measuring system and an evaluation unit. The system includes a position measuring system that has a graduation connected to a moving element, a scanning unit that scans the graduation, wherein scanning of the graduation generates signals representative of a position of the moving element and a transceiver means for generating serial data that is transmitted along a data line connected to the transceiver. The system further includes an evaluation unit connected to the data line, the evaluation unit having means for determining a signal running time between the position measuring system and the evaluation unit.
摘要:
A position measuring system to determine the absolute angle position of a rotor of a motor during startup. With this absolute angle position, correct commutation for startup of the motor is provided. During later operation a high-precision incremental angle measurement is possible. For this purpose a switching unit is disposed between a rotary transducer and an evaluation unit, which is driven in such a manner that first the analog signals necessary for the determination of the absolute angle position are input to the evaluation unit and thereafter the analog signals required for incremental angle measurement are input to the evaluation unit. In order to avoid unacceptable incorrect positioning in case of incorrect switching between the first and second modes of operation, all the analog signals have an approximately equal spacing period.
摘要:
A method and a device for switching between different types of output signals, wherein it is possible to generate at least two different types of output signals by the position measuring system which are transmitted to an evaluating unit. Switching between the different types of output signals takes place by one or several switching signals transmitted by the evaluating unit, which are transmitted over a supply line of the position measuring system.
摘要:
A method for position determination of a rotating drive element with the aid of a measuring system is indicated, which comprises an absolute and an incremental measuring subsystem. Here, following the start of a rotary movement, absolute position measurement values are continuously determined and transmitted to a subordinated evaluation unit until a reference marking at a known absolute position has been reached. A comparison of the measurement values, known from the continuing absolute position measurement, with the known absolute position and, if required, a necessary correction, take place at the reference marking. Thereafter the reference marking is used as the reference position for the incremental measuring subsystem, the continuously absolute position is determined on the part of the measuring system and is transmitted in digital form to the evaluation unit (FIG. 1).
摘要:
A device for the metering of fluidizable bulk materials, having a storage tank and a mass-flow-measuring device for the material and a fluidizing device, which is connected to the storage tank via an aperture of adjustable size, and a control valve for controlling the supply of compressed air to the fluidizing device, wherein a pressure gauge is provided downstream of the fluidizing device, in the direction of flow, and the pressure gauge and control valve are connected via a first control circuit, and the supply of compressed air to the fluidizing device is metered by this control circuit in such a manner that a constant, in each case preselectable subatmospheric pressure prevails in the fluidizing device, and the mass-flow-measuring device and the aperture of adjustable size are connected via a second control circuit, and the size of the adjustable aperture is set by this control circuit in such a manner that a defined quantity of bulk material enters the fluidizing device.
摘要:
The invention relates to a method and device for producing an electric machine, an electric machine with a commutator, having commutator hooks for fixing electric wire windings with solder arranged between the commutator hooks and the wire winding and two electrodes arranged adjacent to each other which are pressed against the commutator hooks. An electric current is passed through the commutator hooks by means of electrodes such that the solder melts and forms a connection to the wire winding.
摘要:
The invention relates to an insulating mask arrangement for electrically insulating an electric winding from an iron core (13) of an electrical machine (20), at least one mask element (11, 12) being arranged on the iron core (13). The invention provides that the iron core (13), in its axial extension (15), is covered throughout in its winding-guiding grooves (24) by one or more mask elements (11, 12). The invention also relates to an armature and to an electrical machine.
摘要:
A collapsible hard top for convertible motor vehicle and including a rigid top panel displaceable between a closed position in which it overlaps an entire passenger compartment of the vehicle, and an open rearward position, and a rear window a position of which is independent of a position of the hard top and which pivots between an upright position, in which the rear window extends upward of motor vehicle body contour, and lowered position in which the rear window projects in to the passenger compartment, with a distance between a back side of rear posts of the top panel and a B-pillar of the vehicle body corresponding at least to a height of the hard top.
摘要:
A cutter-infeed apparatus for cutting installations for articles in tape or strip form or film-like articles, circular cutters being fastened on upper and lower shafts and displaced with respect to one another for fixing the cutter infeed, and an electrical insulation between the upper and lower shafts making it possible to detect the cutter contact during infeeding and thereby make the infeeding operation automatable. It is also possible to make the infeeding of the individual cutters or cutter-box cutters such that it can be set depending on the difference in speed of the upper and lower shafts. The apparatus can be used for cutting machines of all types in which thin, uncoated or coated polymer films or metal foils can be cut.