Abstract: A circuit arrangement for the protection of at least one component of a two wire electrical current loop, which is connected in series with a burden to an AC/DC electrical current source. The two wire electrical current loop has a rectifier a clock signal producer and a switch. The rectifier forms a DC circuit, wherein the component is connected in the DC circuit and wherein the clock signal producer outputs a clock signal to the switch for clocking the DC circuit. The circuit arrangement has a diode, wherein the conduction direction of the diode points from the anode of the diode to the cathode of the diode. The cathode of the diode is connected to the DC circuit, and the anode of the diode is supplied with a periodic or constant voltage from a first voltage source, and the voltage is at least periodically greater than a predetermined threshold value.

Abstract: During the transverse-folding operation of items of laundry, a number of layers are positioned one above the other so as to overlap one another. In order to achieve optimum folding quality, the aim is for layers of equal length to overlap, which is only rarely possible in practice. It is usually the case that the layers are of unequal length, and this gives rise to a difference in overlap. The invention makes provision for the difference in overlap to be eliminated, or at least to be minimized, in that it is determined whether a difference in overlap is present and the difference in overlap which may be established is corrected for the transverse-folding operation of the next-following item of laundry, which allows established differences in overlap to be compensated for automatically at least for the most part.

Abstract: The invention relates to a circuit arrangement for the protection of at least one component 3 of a two wire electrical current loop, which is connected in series with a burden 1 to an AC/DC electrical current source 16, wherein the two wire electrical current loop has a rectifier 2, a clock signal producer 9 and a switch 3, wherein the rectifier 2 forms a DC circuit 12, wherein the switch 3 is connected in the DC circuit 12 and wherein the clock signal producer 9 outputs a clock signal T to the switch 3 for clocking the DC circuit 12, characterized in that the circuit arrangement has a diode 4, wherein the conduction direction of the diode 4 points from the anode KN of the diode 4 to the cathode KA of the diode 4, the cathode KA of the diode 4 is connected to the DC circuit 12, the anode KN of the diode 4 is supplied with a periodic or constant voltage from a first voltage source 6a, and the voltage is at least periodically greater than a predetermined threshold value S.

Abstract: A field device of process automation technology having an interface for output of an electrical current signal and a specifying unit, which provides a value, on which depends an electrical current signal to be output via the interface. A first controllable electrical current sink and a second controllable electrical current sink are provided. The first controllable electrical current sink and the second controllable electrical current sink are settable to predeterminable electrical current levels, and that the first controllable electrical current sink and the second controllable electrical current sink are connected with the interface in such a manner that the electrical current signal which at the interface essentially depends on the lower of the predeterminable electrical current levels, to which the first controllable electrical current sink and the second controllable electrical current sink are set.

Abstract: During the transverse-folding operation of items of laundry, a number of layers are positioned one above the other so as to overlap one another. In order to achieve optimum folding quality, the aim is for layers of equal length to overlap, which is only rarely possible in practice. It is usually the case that the layers are of unequal length, and this gives rise to a difference in overlap. The invention makes provision for the difference in overlap to be eliminated, or at least to be minimized, in that it is determined whether a difference in overlap is present and the difference in overlap which may be established is corrected for the transverse-folding operation of the next-following item of laundry, which allows established differences in overlap to be compensated for automatically at least for the most part.

Abstract: For treatment of ballast water, on uptake of ballast water into a ship, equilibrium peracetic acid and catalase are added to the ballast water, wherein equilibrium peracetic acid is added in an amount of from 5 to 50 mg/l peracetic acid and catalase is added in an amount which within 120 h breaks down the content of the hydrogen peroxide introduced with the equilibrium peracetic acid to less than 2 mg/l in the ballast water. For treating the ballast water, a device is suitable that comprises a ballast water tank, a conduit for filling the ballast water tank and a conduit for emptying the ballast water tank, wherein metering devices for equilibrium peracetic acid and catalase are connected to the conduit for filling the ballast water tank, and a metering device for a reducing agent is connected to the conduit for emptying the ballast water tank.

Abstract: A method for determining and/or monitoring a process variable of a medium, wherein a mechanically oscillatable unit is supplied with an exciter signal wherein a received signal coming from the mechanically oscillatable unit is received, and wherein the exciter signal is produced in such a manner, that a phase difference between the exciter signal and the received signal equals a predeterminable phase value. A criterion for judging the determining of the phase difference between the exciter signal and the received signal, or a signal dependent on the exciter signal or on the received signal, is established; in the case, in which the criterion for judging the determining of the phase difference is fulfilled, tuning of the phase difference is closed-loop controlled; and, in the alternative case, tuning of the phase difference is open-loop controlled. An apparatus associated with the method is also disclosed.

Abstract: A field device of process automation technology having an interface for output of an electrical current signal and a specifying unit, which provides a value, on which depends an electrical current signal to be output via the interface. A first controllable electrical current sink and a second controllable electrical current sink are provided. The first controllable electrical current sink and the second controllable electrical current sink are settable to predeterminable electrical current levels, and that the first controllable electrical current sink and the second controllable electrical current sink are connected with the interface in such a manner that the electrical current signal which at the interface essentially depends on the lower of the predeterminable electrical current levels, to which the first controllable electrical current sink and the second controllable electrical current sink are set.

Abstract: Disclosed is a bushing system for a lamp, comprising at least one electrode and/or lead-in wire that is/are embedded in a final section of a lamp vessel by means of a glass seal. At least some sections of said electrode and/or lead-in wire are provided with an antioxidant layer in the zone of the glass seal. Also disclosed are a lamp comprising such a bushing system as well as a method for the production thereof.

Abstract: Method for determining and/or monitoring a process variable of a medium, wherein a mechanically oscillatable unit is supplied with an exciter signal wherein a received signal coming from the mechanically oscillatable unit is received, and wherein the exciter signal is produced in such a manner, that a phase difference between the exciter signal and the received signal equals a predeterminable phase value. A criterion for judging the determining of the phase difference between the exciter signal and the received signal, or a signal dependent on the exciter signal or on the received signal, is established; in the case, in which the criterion for judging the determining of the phase difference is fulfilled, tuning of the phase difference is closed-loop controlled; and, in the alternative case, tuning of the phase difference is open-loop controlled. An apparatus associated with the method is also disclosed.

Abstract: A method for operating a navigation device, including an input unit, into which location information, particularly starting points and/or destination points, may be entered, a road network database, a route calculation unit for calculating a planned route, taking into account location information and the road network database, wherein the route leads from the starting point to the destination point, a position determining unit, in which a location to be displayed and/or a direction of motion to be displayed are calculated, a display unit, on which the location to be displayed and a graphical map representation of the area surrounding the location to be displayed can be shown, wherein the orientation of the map representation can be changed according to the direction of motion to be displayed, wherein the method includes a) a change in the direction of motion to be displayed is detected in the position determining unit, b) a lag time is interposed, c) the orientation of the map representation is changed accor

Abstract: In a method of transmitting a measurement signal M between a measuring unit 1 and a control unit 10, the uniform measurement signal has a supplementary signal Z superimposed on it which alternates over time. To check the operation of the measuring unit 1, the measurement signal M is evaluated in the control unit 10. If the supplementary signal Z is erroneous, the control unit 10 produces an alarm signal.

Abstract: The invention relates to a thermal compensation device having a thermal compensation cell for a hydraulic support cell that has a working chamber and a compensation chamber. According to the invention, each of the chambers of the support cell is connected to a chamber in the thermal compensation cell. Two tightly interconnected pistons with identical working surfaces press on both chambers in the thermal compensation cell. For this purpose, a lateral support system with a reversing lever having at least one hydraulic cell, which has a work cell and a compensation cell, is used. According to the invention, the rotating axis of the reversing lever is arranged at least in one axis running through a hydraulic cell. Each work chamber and the compensation chamber of the hydraulic cell lie opposite each other.

Abstract: A voltage regulator circuit for generating a regulated output DC voltage from a non-regulated DC or AC voltage, comprises an input rectifier circuit for rectifying the non-regulated AC voltage and a series regulator, containing a gate-controllable transistor, which regulates the output voltage supplied to it by the rectifier to a first voltage value. The transistor of the series regulator is a field-effect transistor (20) which in the ON condition charges a charging capacitor (46), the charging voltage of which forms the regulated output voltage. Connected to the gate terminal (21) of the field-effect transistor is a first threshold circuit (26, 28, 30, 32) receiving the non-regulated DC voltage which applies to this gate terminal (21) a voltage turning OFF the field-effect transistor (20) as soon as the non-regulated DC voltage exceeds a predetermined threshold value.

Abstract: The invention is directed to an optical image recording arrangement of a three-dimensional object wherein an illuminating raster generator simultaneously generates a plurality of separate light spots in a first focal plane. The light spots in the first focal plane are imaged by optical elements into a second focal plane on the three-dimensional object. The image of the light spots is imaged by optical elements onto a first detector device having several detector elements. A displacing device is mounted in the beam path of the illuminating raster generator. The displacing device effects at least a two-axis position change of the first focal plane. The method of the invention determines the sharply imaged regions of a three-dimensional object in an optical image recording arrangement. An illuminating raster generator in the image recording arrangement simultaneously generates a plurality of separate light spots in a first focal plane.

Abstract: The invention is directed to a stress-free support which includes two parts 1 and 2 having different linear thermal expansion coefficients. One part can, for example, be a mirror support made of Zerodur and the second part can be an aluminum support structure. A compensating stress-free support with flexure joints (121 to 126, 211 to 213, 214 to 216) increases the stiffness with respect to tilting. The stress-free support has a low weight and a low structural elevation. The entire arrangement is planar.

Abstract: A transmitting station is connected to a receiving station by a two-wire line via which the supply current required for operating the transmitting station is transferred from the receiving station to the transmitting station. The transmitting station comprises a supply circuit including a voltage regulator for maintaining the operating voltage of the transmitting station constant and an energy store for compensating current and/or voltage fluctuations. Via the two-wire line a signal current, variable between two limit values, is further transferred from the transmitting station to the receiving station. This signal current consists of the supply current for the transmitting station and a supplementary current determined by the transmitting station. For transfer of the communication information between the transmitting station and the receiving station, a symmetrical communication current is superimposed on the signal current.

Abstract: A casing for holding electronic components and the like, is provided on each of its side walls facing away from one another with two fastening lugs which project laterally therefrom and are each provided with an opening for the passage of a screw, and which are associated with casing side edges corresponding to one another. The openings for the passage of a screw which are provided in fastening lugs lying opposite one another and associated with the same side wall of the casing are in each case free from overlap, in their projection, with the fastening lug lying opposite. The arrangement of the fastening lugs makes possible the installation of the casing in both right-hand and left-hand drive vehicles without being mounted with mirror inversion. This provides advantages, for example, when there is restricted space to accommodate the cable leading out of the casing.

Abstract: The invention is directed to an arrangement of plug elements which are joined together to define an axial direction and the attachment of one or more components is made to the outside of the plug elements in the direction perpendicular to the plug element axis. The connection of the individual plug elements can be permanent and releasable.

Abstract: The invention is directed to an arrangement for connecting bodies together wherein temperature-induced constraining forces are minimized. It is intended to prevent constraining forces resulting from thermally-induced tensions when connecting two bodies by utilizing a suitable connecting member. The connecting member is wedge-shaped and its temperature movement is compensated for by one or more compensating elements disposed between the connecting member and the bodies to be connected.