Abstract: An electronic device includes a first module, which is protected against electromagnetic interference, and a second module. At least the first module has multilayer printed circuit boards with at least one inner layer with conductor tracks. The at least one inner layer forms flexible connections between the printed circuit boards of the first and second modules. The at least one inner layer forms a bushing capacitor together with other conductor tracks of the first module.

Abstract: A suppression device for an electronic appliance having a plug-in device which has at least one plug-in element and is designed for attachment to a housing of the electronic appliance, with a capacitor having at least two capacitor plates being provided in order to improve the electromagnetic sensitivity. In a simple and low-cost suppression measure for electronic appliances, which is also suitable for mass production, the capacitor is arranged outside the housing of the electronic appliance and is electrically connected firstly to a plug-in element of the plug-in device and secondly to the potential of the electrically conductive housing.

Abstract: The invention relates to a process and device for determining the alignment, with respect to a reference direction, of a cylindrical body (10) mounted to rotate around its lengthwise axis (22). The device including a position measurement probe (20), which is calibrated to the reference direction, being attached on the end face (12) of the body or on a surface essentially parallel to the end face, which probe gathers measurement data in at least three measurement positions around the lengthwise axis each position of which differs from the other by an angle of rotation of the body, such that one position measurement at a time is being taken. Then the alignment of the body with respect to the reference direction is computed from the determined measurement data.

Abstract: A device for aligning two machine shafts which are coupled to one another has: at least one laser light source for emitting laser light; at least one reflector for reflecting the laser light; at least one receiving device for receiving the laser light; a first arithmetic computing device for determining parallel and angular offset of the machine shafts; and an evaluation and arithmetic computing device for determining the distance of the machine mounting elements relative to the plane of symmetry which lies between the machine shafts. The plane of symmetry intersects the axes of the machine shafts essentially perpendicular to longitudinal axes of the shafts, i.e. with an angular error of less than 6°.

Abstract: The invention relates to a suppression device for an electronic appliance having a plug-in device which has at least one plug-in element and is designed for attachment to a housing of the electronic appliance, with a capacitor having at least two capacitor plates being provided in order to improve the electromagnetic sensitivity. In a simple and low-cost suppression measure for electronic appliances, which is also suitable for mass production, the capacitor is arranged outside the housing of the electronic appliance and is electrically connected firstly to a plug-in element of the plug-in device and secondly to the potential of the electrically conductive housing.

Abstract: The security system as presented is used preferredly to monitor paintings and other work of art. Essential component of the security system are suspending elements, for mounting e.g. paintings. The suspending elements also serve to transmit signals (data) or electrical power, for illumination purposes. It is preferred to implement a two wire bus system with the suspending elements. In case an alarm is triggered, the system according to the invention is able to immediately identify and display the time and the place of the objects to be guarded. Several levels of monitoring capabilities are provided, which work in cooperation with hardware consisting of different sensors or transponders. The security system in accordance with one embodiment is connectable to a network.

Abstract: A device for aligning two machine shafts which are coupled to one another has:

Abstract: A device for precision measurement of shafts, spindles, or the like calls for two surfaces which are combined with one another, of which one is partially reflecting and the other is roughly fully reflecting. These surfaces reflect an incident light beam independently of one another onto a single optoelectronic target. The target can be read out two-dimensionally and is pixel-oriented. From only a single measurement position, the azimuth and elevation, and the parallel offset between the incident light beam and a center of the reflecting surfaces can be determined.

Abstract: The invention relates to an electronic deice with a contact device attached to an electrically conducting housing, which has at least one plug-in element to establish electrical contact with an electrical circuit disposed in the housing, a capacitor being provided to improve the electromagnetic sensitivity of the electric circuit.

Abstract: The security to prevent theft of a central locking system for motor vehicles is improved by arranging a switch 34, 340, which can be switched by a coded signal, in the supply voltage lines 31 and/or 310 and/or 32 for driving an-actuating element.

Abstract: A device is proposed, which makes it possible to ascertain the relative position of the reference axis BA of an object relative to a reference beam Rp of an electromagnetic radiation, in particular a laser beam. The device displays a spatially fixed radiation transmitter S and—at the object end—a splitting mirror 22 as well as two position detectors 23 and 25. The splitting mirror branches a partial beam Rp′ off from the reference beam. The reference beam passing rectilinearly through the splitting mirror impinges on the one position detector and the partial beam on the other. The position detectors supply electrical signals, from which the position of the reference axis is ascertainable by means of a computer. The known devices of this species have an appreciable space requirement. This defect is eliminated by a particular structuring of the beam conduction and the additional use of special optical means.

Abstract: The invention relates to a process and device for determining the alignment, with respect to a reference direction, of a cylindrical body (10) mounted to rotate around its lengthwise axis (22). The device including a position measurement probe (20), which is calibrated to the reference direction, being attached on the end face (12) of the body or on a surface essentially parallel to the end face, which probe gathers measurement data in at least three measurement positions around the lengthwise axis each position of which differs from the other by an angle of rotation of the body, such that one position measurement at a time is being taken. Then the alignment of the body with respect to the reference direction is computed from the determined measurement data.

Abstract: A device is proposed, which makes it possible to ascertain the relative position of the reference axis BA of an object relative to a reference beam Rp of an electro-magnetic radiation, in particular a laser beam. The device displays a spatially fixed radiation transmitter S and at the object end a splitting mirror 22 as well as two position detectors 23 and 25. The splitting mirror branches a partial beam Rp′ off from the reference beam. The reference beam passing rectilinearly through the splitting mirror impinges on the one position detector and the partial beam on the other. The position detectors supply electrical signals, from which the position of the reference axis is ascertainable by means of a computer. The known devices of this species have an appreciable space requirement. This defect is eliminated by particular structuring of the beam conduction and the additional use of special optical means.

Abstract: A device is proposed, which makes it possible to ascertain the relative position of the reference axis BA of an object relative to a reference beam Rp of an electromagnetic radiation, in particular a laser beam. The device displays a spatially fixed radiation transmitter S and at the object end a splitting mirror 22 as well as two position detectors 23 and 25. The splitting mirror branches a partial beam RP′ off from the reference beam. The reference beam passing rectilinearly through the splitting mirror impinges on the one position detector and the partial beam on the other. The position detectors supply electrical signals, from which the position of the reference axis is ascertainable by means of a computer. The known devices of this species have an appreciable space requirement. This defect is eliminated by particular structuring of the beam conduction and the additional use of special optical means.

Abstract: An ergonomically equipped and interference signal-reducing position measurement probe for mutual alignment of bodies has a speech input device and/or a speech output device. The probe is wirelessly linked to an external control or a higher-level supervisory computer either by an infrared interface or a radio link which operates at an extremely high frequency. Error-reducing measured value acquisition is effected by averaging. The average represents several individual measured value. In the acquisition of the individual measured values, it is watched that the times of measured value recording and the time peaks of a solid-borne sound oscillation on the measurement object are essentially asynchronous to one another.

Abstract: A method and an apparatus are specified for alignment of the shaft W1 of a rotating machine M1 in a predetermined nominal position by moving the machine M1 on the base, as well as an apparatus for carrying out the method. The instantaneous position of the shaft W1 is detected in a known manner by a sensor device 7, which provides electrical position signals corresponding to the difference between the instantaneous position of the shaft W1 and the shaft nominal position. These position signals, the known relative position of the mounting points 6 of the machine M1 on the base with respect to the predetermined reference points on this base, and other geometric measurement data are used by a computer to calculate correction values for position corrections to be made at the individual mounting points 6 of the machine M1, and these correction values are brought to the attention of the alignment technician 4, for the magnitude and direction for each mounting point 6.

Abstract: The spatial position of rollers or other mutually adjacent articles is measured or examined by indirect transport of a reference direction. To this end, an adaptor is placed on one of the rollers. The adaptor is equipped with a light source which emits a light beam substantially parallel to the axis of rotation of a roller. The light beam is sensed by a movable sensor unit. The latter determines, at the same time, the angle of incidence of the light beam according to two axes, relative to the sensor unit, and the orientation of the sensor unit relative to a reference axis system (laboratory system). A multi-axially operating gyroscope is used for the last-mentioned measurement. A suitably programmed electronic system or computer determines, from the two measured values, the orientation of the adaptor and of the roller with respect to azimuth and elevation in the laboratory system.

Abstract: An electric center for motor vehicles has an electric part by which different electric power levels are connected to each other. The electric center is arranged on an insulating part holder, and connectors of the electric part engage into the insulating part holder. In order to assure a compact electric center for motor vehicles which is insensitive to disturbance, at least one connector of the electric part which is acted on with a higher power is contacted by a current feed on the side of the part holder facing away from the part holder. At least one low-load connector of the electronic component is connected with a holder member bearing electronic components, the holder member being physically separated from the insulating part holder.

Abstract: Method and device for ascertaining the spacing of the center line of curvature of a concave body surface 3a and 5a, which is curved in the shape of a conical envelope, in particular the spacing of the longitudinal center line of a turbine rotor bearing or the central opening in the rim of a turbine impeller wheel from a reference axis. A sharply focussed light beam L, which presets the reference axis, is emitted by a light beam transmitter 6 through the measurement space which faces the body surface 3a and 5a to be measured. This light beam impinges on the measurement field of a photo-electronic position detector rigidly fastened at a sensing device 7. The sensing device 7 is supported in stable manner and displaceably on the body surface 3a and 5a to be measured and is rotated about the center line of curvature of the body surface through displacement of its supported end in the direction of curvature on the body surface.

Abstract: In a wetness sensor for a window of a motor vehicle, a heating resistor arranged in the window and powered by DC current can be connected to a measuring device for measuring an AC impedance of the heating resistor, in particular the capacitive portion thereof. The impedance varies with the amount of wetness and, thereby, serves as a measure of the wetness. A capacitor is used to bring the sensor near resonance for improved sensitivity.