Abstract: Disclosed is an apparatus for determining a process variable of a medium in a containment, comprising a first oscillatory element and a second oscillatory element, a first driving/receiving unit and a second driving/receiving unit, and an electronics, wherein the first driving/receiving unit is embodied to excite the first oscillatory element by means of a first electrical excitation signal to execute mechanical oscillations, and to receive the mechanical oscillations of the first oscillatory element and to convert such into a first electrical, received signal, wherein the second driving/receiving unit is embodied to excite the second oscillatory element by means of a second electrical excitation signal to execute mechanical oscillations, and to receive the mechanical oscillations of the second oscillatory element and to convert such into a second electrical, received signal, and wherein the electronics is embodied to determine the process variable from the first received signal and/or the second received sig

Abstract: A corrosion protection element is described, with which in simple and cost effective manner a reliable corrosion protection of field devices can be provided, which field devices comprise at least one component of stainless steel in contact with an environment of the field device. Corrosion protection elements of the invention are distinguished by features including that they are embodied as sacrificial anodes comprising iron or rustable steel and have a form, which is embodied in such a manner that they can be applied to the component of the field device in such a manner that the sacrificial anode is in electrically conducting contact with the component.

Abstract: Disclosed is a fill-level measuring device for determining the fill level in a container. The device comprises: a radar module for determining a distance to the surface of the filling material; a 3D camera for capturing at least one region of the surface of the filling material; and an evaluation circuit that is designed to measure a maximum distance and a minimum distance from the captured distance values and to determine the fill level on the basis of the distance, providing that the distance is smaller than the maximum distance value and greater than the minimum distance value. As a result of the redundancy or the verification provided by the 3D camera of the distance calculated by the radar module, the fill-level measuring device according to the invention is therefore more reliable with regard to the miscalculation of an incorrect fill level.

Abstract: Disclosed is a field device adapter for HART communication with a field device. The field device adapter includes an adapter housing with an adapter chamber; arranged in the adapter chamber, an adapter electronics, which is adapted wirelessly to receive a second radio signal and by means of the second radio signal to control a circuit for shunting the communication resistor in such a manner that at least one communication resistor is selectively switchable in and out per radio, so that in a shunted condition a first radio signal received by the adapter electronics can be converted into a, preferably HART based, two conductor signal and modulated via the tapping point onto the loop current.

Abstract: Disclosed is a probe unit for a capacitive and/or conductive apparatus for determining and/or monitoring of at least one process variable of a medium in a containment, comprising a rod-shaped probe body, which is embodied in the form of a hollow body, especially with a cylindrical wall, and which has an internal volume, at least one ring-shaped electrode placeable, especially releasably, around the wall of the probe body, and at least one securement unit, which is embodied to secure the at least one electrode, especially releasably, at a predeterminable position on the probe body. Further disclosed is an apparatus for capacitive and/or conductive determining and/or monitoring of at least one process variable of a medium in a containment and having a probe unit of the present disclosure.

Abstract: The present disclosure relates to a measuring system including: an automation field device embodied for determining and/or monitoring a process variable of a medium; a connection unit, which includes a connection plug, which is electrically connected with the field device, and a cable, which is connected to the connection plug with a cable connection and which serves for supplying the field device with electrical energy and/or for transmitting information between the field device and a superordinated unit; and a protective cover, which surrounds the connection unit and the field device connected with the connection unit in a protection section, wherein by means of the protective cover the impact resistance of the measuring system in the protection section is increased.

Abstract: The present disclosure discloses process seals having a form retaining core and a coating of a thermoplastic sealing material for pressure sensors. The process seals can be replaced in simple manner, especially essentially without loss of measurement accuracy. The process seals are characterized by features including that they are pre-aged in a pre-aging method performable in a reproducible manner and insertable in the pressure sensor as replaceable components, wherein the process seals were clamped during the pre-aging method in a clamping apparatus exerting a clamping force thereon, wherein the clamping apparatus has a clamping geometry surrounding the process seal clamped therein, which is essentially identical to the clamping geometry surrounding the process seal in the pressure sensor.

Abstract: The present disclosure relates to a method for producing a pressure transmitter system, comprising the steps: providing a protective hose, a capillary tube and a pressure transmitter, which consists of a membrane support body and a filling adapter body that has a filling closure; arranging the capillary tube and a capillary interface of the capillary adapter relative to one another; integrally welding the capillary tube to the capillary adapter; and placing the protective hose onto a protective hose mounting of said capillary adapter.

Abstract: The invention relates to a modular field device, which is simply and safely assemblable. For this, the field device comprises: a housing having an electrical plug contact arranged in a housing interior, a mechanical securement, which is embodied to secure a first electronic component in the housing interior, a second electronic component, which is arrangeable in the housing interior and which is electrically contactable with the plug contact, and an elastic connection, which is embodied to connect the first electronic component elastically with the second electronic component. A division of tasks between two electronic components enables a modular design of the field device with universally applicable electronic components. In addition, the elastic connection provides a simple, mechanical securement of the first electronic component in the housing with simultaneous, safe, electrical connection of the second electronic component with the plug contact.

Abstract: The present disclosure relates to reflector for non-contact radar-based fill level measurement in containers with floating roofs. The reflector is designed to be mounted on top of the floating roof, wherein the reflector comprises at least a surface, which is formed by an array of cavities. According to the present disclosure, the cavities have a tapered cross-section. By the tapered cavities the radar signals emitted by the fill level measuring device are reflected and focused towards the fill level measuring device, so that the receipt of the reflected radar signal by the fill level measuring device is ensured. Through this, the fill level measuring device can determine the fill level reliably based on the reflected radar signals.

Abstract: The invention relates to a method for mechanical connecting especially of a potting frame to a printed circuit board of an electrical/electronic module. The potting frame includes a metal contact area. The printed circuit board includes a surface area structured metallically corresponding to the contact area. The method includes positioning the mechanical component with the contact area facing the corresponding surface area, and soldering the mechanical component to the printed circuit board via the contact area and the surface area. The method the advantage that a material saving encapsulation can be provided for electrical/electronic modules in explosion endangered regions. An additional process step for mechanical connecting of the encapsulation to the printed circuit board can be omitted, since the mechanical connecting of the potting frame can be performed in one process step together with the soldering of the additional electrical/electronic components to the printed circuit board.

Abstract: The present disclosure relates to a method for FMCW-based measurement of a distance of an object located in a waveguide, as well as a corresponding distance measurement device that, in particular, may be used for fill-level measurement in surge pipes or bypass pipes of containers. The method is based upon the fact that the transmission signal that is typical in FMCW is not ramp-like, and thus is emitted with constant frequency modulation. Rather, according to the present disclosure, a curvature of the frequency ramp is set to be at least approximately proportional to the frequency dependency of the propagation velocity of the transmission signal in the waveguide. The distortion effect is thus compensated for in that the propagation velocity of the transmission signal in waveguides is not constant, but, rather, decreases with falling transmission frequency.

Abstract: The present invention relates to a method for monitoring state of a coil having at least two connection wires, which coil is part of an apparatus for determining at least one process variable of a medium in a containment, as well as relating to an apparatus for executing the method. The method, in such case, includes method steps as follows: ascertaining a desired-value of an ohmic total resistance for the coil and the connection wires, supplying the coil with an electrical excitation signal and receiving an electrical, received signal from the coil by means of the two connection wires, ascertaining an actual-value of the ohmic total resistance based at least on the received signal, and comparing the actual-value with the desired-value and ascertaining a state indicator based on the comparison.

Abstract: An Apparatus for determining and/or monitoring at least one process variable of a medium in a container, comprising: a mechanically oscillatable unit a driving/receiving unit for exciting the mechanically oscillatable unit to execute mechanical oscillations by means of an electrical, exciting signal and for receiving and transducing the mechanical oscillations into an electrical, received signal a control unit, which is embodied to produce the exciter signal starting from the received signal and to set a predeterminable phase shift between the exciter signal and the received signal, an electromagnetically oscillatable unit, an active element for producing and/or maintaining electromagnetic oscillations in the electromagnetically oscillatable unit, which active element forms together with the electromagnetically oscillatable unit an oscillator, a coupling unit, which is embodied to tap an output signal from the active element, and an evaluation unit, which evaluation unit is embodied to determine the at least

Abstract: A vibronic sensor for monitoring a flowable medium, comprising: an oscillator to which a medium surrounding the oscillator can be applied; at least one electromechanical transducer for exciting the oscillator to mechanical vibrations in accordance with driver signals and/or for outputting transducer signals that depend on vibrations of the oscillator; an operating and evaluating unit for providing the driver signals for driving the electromechanical transducer, for capturing the transducer signals, and for determining the presence, the density, and/or the viscosity of the medium in accordance with the transducer signals, wherein the operating and evaluating unit is designed to detect whether the medium in the pipe has a flow velocity above a limit value on the basis of time-varying modifications of the transducer signals.

Abstract: A differential pressure sensor for determining a differential pressure value, comprising: a differential pressure measuring transducer having a measuring membrane; a membrane seal having a membrane seal body including a pressure chamber filled with a transmission fluid in which a filling body having a recess is arranged, wherein the differential pressure measuring transducer arranged in the recess, wherein a first pressure is applied to the differential pressure measuring transducer on a first measuring membrane side and a second pressure is applied to a second measuring membrane side such that deformation of the measuring membrane represents a differential pressure value between the first pressure and the second pressure, wherein a piezoelectric layer for determining an absolute pressure value of the first pressure is provided inside the pressure chamber.

Abstract: Disclosed is a pressure measuring device, whose pressure sensor is protected against thermomechanical stresses, comprising a carrier, a support body arranged on the carrier, a pressure sensor arranged on the support body, a first joint including a joint material connecting the support body with the pressure sensor, and a second joint including a joint material connecting the support body with the carrier. The support body has on a face opposite the pressure sensor a first groove configured such that the first groove surrounds a joint area of the support body. The joint area of the support body and a footprint of the first joint are essentially equally large and significantly less than a base area of the pressure sensor opposite the first joint.

Abstract: A bidirectional serial communication interface comprising a slave powered by a master connected to the slave via a signal line and a return line is disclosed. The master includes a master switch inserted in a line connecting a supply voltage to the signal line and a transceiver transmitting binary signals by opening and closing the master switch and receiving binary signals whilst the master switch is open. The slave includes an energy storage charged via the signal line and providing an internal power supply; a pull-up switch inserted in a line connecting the signal line to the internal power supply; a pull-down switch inserted in a line connecting the signal line to the return line; and a transceiver transmitting binary signals by opening and closing the pull-up and the pull-down switch whilst the master switch is open and receiving binary signals whilst the pull-up and the pull-down switch are open.

Abstract: A module for asynchronous differential serial communication on a bus is disclosed. The module is connectable to the bus in a first connecting mode, wherein a non-inverting terminal of the module is connected to a non-inverted bus signal line and an inverting terminal is connected to an inverted bus signal line, and a second connecting mode given by an inverse of the first connecting mode. The module includes a detector determining the connecting mode based on the binary state of a start bit of a reception signal provided by a transceiver of the module based on a received communication signal and a binary state of a first bit of a reference signal corresponding to a voltage difference between the voltages of the signals received via the non-inverted and the inverted terminal during reception of this communication signal.

Abstract: The present disclosure relates to a method for ensuring the authenticity of a field device. The method includes a step of assigning a unique authentic identification feature to the field device or providing the field device with a unique authentic identification feature. The method also includes steps of transmitting ACTUAL identification data to a participant node which transmits the ACTUAL identification data to the other participant nodes in a transaction, validating the transaction by the participant nodes, and creating a data block containing the transaction, wherein the data block is transmitted to each of the participant nodes. The method also includes verifying the data block by all participant nodes, storing the validated data block in the databases, comparing the ACTUAL identification data with corresponding TARGET identification data or original identification data from an authentication point, and generating a response containing the result of the comparison.