Abstract: A housing for holding electrical and/or electronic components with a housing opening and with an entry fitting which is rotationally located in the housing opening, the entry fitting having a cylindrical holding part in which an annular groove is formed, and being held by a fastener in the housing. In the housing, the entry fitting can be securely attached to the housing with simple means and installation of the entry fitting, with the housing otherwise closed, is possible in that, for axially securing the entry fitting in the housing opening, there is an open plastic snap ring which is provided with a feed bevel which is guided in the annular groove, and which, in the installed state of the entry fitting, is locked at least partially in a groove in the housing opening.

Abstract: A circuit arrangement is described for selectively generating an analog current output value or an analog voltage output value as a function of an analog input value. Optionally, the analog current output value or the analog voltage output value may also be a function of an input base value or a signed input correction value. The circuit arrangement includes a current control unit, a voltage control unit, a current output source is triggered by the current control unit, and a voltage output source triggered by the voltage control unit. The current output source and voltage output source of the circuit arrangement may be triggered in parallel and are connected in series on the output side.

Abstract: An electronic switching device, which operates without contact, includes a single sensor element (1), a clock generator, which can be provided internally or which can be connected externally, an evaluation circuit (2), and an electronic or electromechanical switch (3), which is provided on an output side. The evaluation circuit (2) includes diversity processing units (4, 5), and a checking unit (6), wherein an output signal of the sensor element (1) is delivered in succession to the processing units (4, 5), and that output signals of the processing units (4, 5) are checked for consistency by the monitoring unit (6). Advantageously, with only a single sensor element (1), category 4 of EN 954-1 or safety level SIL 3 of EN 61508 requirements can be achieved.

Abstract: An optoelectronic sensor, especially a reflection photoelectric barrier and a reflection light sensing device, for detection of an object (2) in a monitored area, with a housing (3) with transmitting and receiving optics (6) and with an evaluation circuit (10). The optoelectronic sensor has an especially simple structure in that there is only one single optoelectronic transmitting and receiving component (14) which sequentially acts as both the opto-transmitter and the opto-receiver in succession in time.

Abstract: A capacitive proximity switch for detecting the change in the capacitance relative to a setpoint capacitance by the approach or retreat of an object in the sensitive area of a proximity switch, especially for use in the door handle of a motor vehicle, provides reliable error detection and error suppression at a fundamentally high sensitivity of the capacitive proximity switch by utilizing an evaluation unit that evaluates a measured value of the change in capacitance over time and depending on the time behavior of the measured value activates changes the operating threshold from a first threshold (which can be caused by a false object coming into or out of the sensitive area of the proximity switch) to a higher second threshold which can be reached only at a relatively greater change in capacitance caused by a target object coming into or out of the sensitive area of the proximity switch.

Abstract: A circuit arrangement for detecting the capacitance or capacitance change of a capacitive circuit element or component, in which there is a capacitive noise voltage compensation element, which corresponds to the sensor capacitor, represented as a noise voltage compensation capacitor, and a noise voltage compensation electrode of the noise voltage compensation capacitor, which corresponds to the first electrode of the sensor capacitor, is connected to the second electrode of a storage capacitor. The noise voltage compensation capacitor can be influenced in the same way as the sensor capacitor by the LF noise voltage. In this way, the adulteration of the measurement result by LF noise voltages which otherwise occurs no longer takes place.

Abstract: A mounting device for contactlessly-operating proximity switches includes a continuous cylindrical or cuboidal recess for holding the proximity switch which is formed by at least two legs. The mounting device can also include at least one through pocket, connected to the recess, into which an actuating tool can fit. The recess of the mounting device, when in a relieved state, has a smaller diameter than the proximity switch which is to be mounted. Additionally, the recess can be spread into an enlarged state by the actuating tool being positioned into the pocket and turned.

Abstract: A electrical unit consisting of a proximity switch and a cable terminal part is described, where the proximity switch has an outside housing and an insulation part, positioned on one end face of the outside housing and having a terminal element with terminals which lead to the outside. The terminals of the terminal element include terminal sockets. The cable terminal part includes a cable and a connecting part, and the cable is mounted in the connecting part and the ends of the leads of the cable are electrically connected to the terminal sockets of the terminal element. The electrical unitcable terminal part also has a cap which surrounds at least the connecting part and is attached to the proximity switch.

Abstract: A mounting device for contactlessly-operating proximity switches includes a continuous cylindrical or cuboidal recess for holding the proximity switch which is formed by at least two legs. The mounting device can also include at least one through pocket, connected to the recess, into which an actuating tool can fit. The recess of the mounting device, when in a relieved state, has a smaller diameter than the proximity switch which is to be mounted. Additionally, the recess can be spread into an enlarged state by the actuating tool being positioned into the pocket and turned.

Abstract: An inductive path sensor for determining the position of the influencing element (2) is described, with several coils (4) arranged in succession, with one capacitor (5), with an amplifier element (6), with at least one changeover switch (7) and with an evaluation unit (8), one coil (4) at a time and a capacitor (5) forming an oscillating circuit, and one oscillating circuit and the amplifier element (6) forming an oscillator (9), the individual coils (4) being chosen in succession by the changeover switch or switches (7) and the evaluation unit (8) measuring the change of impedance of the coil (4) chosen by the changeover switch (7) or of the oscillating circuit chosen by the changeover switch (7) depending on the position of the influencing element (2) relative to the respective coil (4).

Abstract: An electrical measurement device is described, with a measurement input, an integrated sensor, a measurement and evaluation circuit, and a measured value display, and several measured value outputs. The electrical measurement device enables not only one measured value or several measured values to be determined, but makes it possible to display and process the determined measured values depending on other values such as comparison values and setpoints. An influencing input acts on the measurement and evaluation circuit and is the connecting point for the electrical measurement device to which or via which an influencing value can be applied or input. Therefore, a value with which the measured value can be influenced in the broadest sense is applied.

Abstract: An electronic module (1) for connection of sensors or actuators to a bus line, with an electronic unit, with several jacks (3) for connection of electrical lines (4), and with one jack (5) and one plug (6) for connection of two bus lines (7). The electronic module (1) is especially well suited for use in the hygiene or foodstuffs fields since there is at least one mounting foot (9) for mounting of the electronic module (1) on a support surface (10) and that the housing (2) is made such that the the edge area (14) of the housing bottom (12) is further from the support surface (10) than is the area of the housing by the mounting foot (9).

Abstract: A capacitive fill level measurement device with a fill level sensor having a plurality of sensor fields, electrical wires for electrically connecting the plurality of sensor fields to a multipole side of a selector switch, and a power supply and evaluation circuit electrically connected to a monopole side of the selector switch. The capacitive fill level measurement device can be made with simple production technology and thus economically for a host of different applications using a matrix of printed conductors which extend vertically and horizontally such that each horizontally extending printed conductor on one side is connected to one sensor field and on the other side connected to a vertically extending printed conductor. Each horizontally extending printed conductor is connected with a respective vertically extending printed conductor to form an electrical line or a part of an electrical line.

Abstract: A process for determining the position of an influencing element, using an inductive position sensor, several coils, a capacitor, an amplifier element, at least one changeover switch and an evaluation unit, a selected one of the coils and the capacitor forming a tuned circuit and the tuned circuit and the amplifier element forming an oscillator. Each coil is connected in succession to the capacitor and its impedance measured by the evaluation unit as a function of the position of the influencing element relative to the coil and that coil which is able to determine the location of the influencing element is determined. In further operation, only the impedance of the determined coil or of the tuned circuit formed therewith is measured and used to determine the position of the influencing element, and if the impedance of determined coil changes beyond a threshold amount, the impedance of at least one other coil or tuned circuit is measured.

Abstract: A measurement apparatus for determining the position of an object relative to a reference surface, with a measurement nozzle, a reference nozzle, and a measurement device, the outlet opening of the measurement nozzle being located in the reference surface. A compressed air source provides air having a certain feed pressure so that the measurement device acquires one of three state variables: flow rate, pressure and speed of the air upstream of the measurement nozzle.

Abstract: An electrical unit including a proximity switch and a cable terminal part the proximity switch has an outside housing and an insulation part, the insulation part being on the end face of the outside housing and the insulation part having a terminal element with terminals which lead to the outside. The terminals of the terminal element lead to the outside are made as terminal sockets, the cable terminal part has a cable and a connecting part, the cable being attached in the connecting part, the connecting part being attached to the insulation part and the ends of the wires of the cable are connected in an electrically conductive manner to the terminal sockets of the terminal element.

Abstract: A ceramic pressure measurement cell for use in a sensor for static and/or dynamic monitoring of the pressure of a liquid or flowable medium which includes a base body and a membrane connected to the base body such that one side of the membrane is in contact with the medium to be monitored. The pressure measurement cell has high chemical resistance and high temperature resistance for a plurality of chemicals which is achieved by applying at least one plastic film on the side of the membrane in contact with the medium.

Abstract: An optoelectronic sensor device with a housing (1) which can be adapted to a host of installation situations with the housing (1) unchanged is achieved in that there are an optics module (2) and an electronics module (3) in the housing (1).

Abstract: A capacitive fill level measuring instrument includes a fill level sensor having several sensor arrays (1), electrical lines (2) connected to the sensor arrays (1), select switches (4) with multi-pole sides (3) connected to the lines (2), and a power supply and evaluation circuit (8) having a power supply circuit (6) and an evaluation circuit (7) connected to the mono-pole sides of the select switches (4). A measured value is determined for a state in which no sensor array (1) is connected via the evaluation circuits (7) and (8), the sensor arrays (1) are alternately connected to the multi-pole side (3) of the first select switch (4) and the multi-pole side (3) of the second select switch (4), and after a first fill level determination, the sensor arrays (1), adjacent to a boundary layer, are triggered or interrogated, advantageously, solving various problems with background art devices.

Abstract: A microwave sensor is described, with a self-mixing oscillator (1), with a transmitting and receiving antenna (2), with an impedance (3) which is connected between the current or voltage supply (4) and the oscillator (2), and with an evaluation circuit (5), the self-mixing oscillator (2) producing both the transmitted signal and also mixing the transmitted signal with the received signal and the low-frequency mixed (Doppler signal) being tapped on the impedance (3) and supplied to the evaluation circuit (5). The microwave sensor has only lower power consumption, and the microwave sensor can also be economically produced in that the self-mixing oscillator (2) is made as a push-pull oscillator with two transistors (6, 7).