Abstract: A sensor of the present disclosure includes a sensor housing with a housing window; a sensor unit arranged in the sensor housing suitable for emitting a sensor signal through the housing window and for receiving a detection signal through the housing window (3); a cleaning unit having a cleaning element, a holder and a drive, wherein the cleaning element is attached to the holder such that the cleaning element is suitable for contacting the housing window from the outside, wherein the drive is non-positively connected to the holder and is suitable for moving the cleaning element across the housing window; and a pressing unit which is suitable for exerting an adjustable contact pressure on the cleaning unit so that the cleaning element is pressed against the housing window with the contact pressure.

Abstract: A device and a method for determining and/or monitoring at least one process variable of a medium include a sensor unit having a mechanically oscillatable unit, at least a first piezoelectric element, a pressure detection unit for determining and/or monitoring a pressure, and an electronics unit. The device is embodied to excite the mechanically oscillatable unit using an excitation signal such that mechanical oscillations are executed, to receive mechanical oscillations of the oscillatable unit, to convert them into a first received signal, to transmit a transmitted signal and to receive a second received signal. The electronics unit is embodied, based on the first and/or second received signal, to determine the at least one process variable of the medium.

Abstract: A method of predictive monitoring of a variable of a medium located in a container of a facility comprises steps of continuously recording data comprising measured values, based on training data determining a classification method capable of identifying data sets that have each been measured during one of the specific operation phases, performing the classification method and based on the data sets identified by the classification method determining a time series of compliancy indicators indicative of a degree of compliancy of at least one property of the characteristic of the measured values to a corresponding reference property of the reference characteristic. Based on the time series at least once determining a time remaining until the degree of compliancy indicated by compliancy indicators will drop below a predetermined minimum degree of compliancy; and providing an output informing about the remaining time.

Abstract: A method for radar-based measurement of a filling level of a filling material in a container includes, in successive measurement cycles, generating an evaluation curve, and the relevant current evaluation curve is stored; a first difference curve is formed based on the evaluation curve of the current measurement cycle and a stored evaluation curve of a preceding measurement cycle; and the filling level is determined based on a maximum in the current first difference curve. The filling level is thus established from the difference curve rather than from the evaluation curve, and the filling level can be determined with greater certainty—in particular in the case of filling material having rippled surfaces.

Abstract: An interface circuit enabling serial data communication between a master UART and a slave UART includes two master terminals, two slave terminals, and various logic gates and switches. If data are sent by the master UART before the interface circuit is internally configured, data are sent to both slave terminals. Data received from the slave UART internally configures the interface circuit to route slave transmit data to the master receiver and to route master transmit data to the slave receiver. A master UART including such an interface circuit is also disclosed.

Abstract: An ultrasound instrument for detecting a measured value of a medium includes a measurement chamber having a chamber wall and a longitudinal axis; a pair of ultrasound transducers configured to transmit ultrasound signals along a signal path between ultrasound transducers of the pair through the measurement chamber and to receive ultrasound signals, wherein the signal path includes a signal reflection on a reflection surface, wherein the chamber wall in a region of the reflection surface opposite a first chamber side is configured to prevent a reflection of an ultrasound signal on a chamber outer surface of the chamber wall in the direction of the signal path, wherein the chamber wall has, in the region of the reflection surface, a maximum wall thickness which is at least a factor of 1.5 greater than a Rayleigh wavelength, associated with a central frequency, of the ultrasound signal in the chamber wall.

Abstract: Disclosed is a method for commissioning a magneto-inductive flow measuring device having means for producing a magnetic field and at least one measuring electrode pair for sensing a potential difference in a medium. The method includes a settling of the means during a settling time for stabilizing the magnetic field. During the settling time a first voltage time function is applied to the means, wherein after the settling time a measuring time begins, wherein during the measuring time a second voltage time function is applied to the means, wherein the settling time is divided into first time intervals, each of which has a duration, wherein the measuring time is divided into second time intervals, each of which has a duration, wherein an average value of all first interval durations is always less than an average value of all second interval durations.

Abstract: Disclosed is a sensor comprising a sensor element that detects a measurand, the sensor element being in electrical contact with a sensor circuit that processes values derived from data from a secondary coil and/or from the measurand. The sensor circuit is in electrical contact with an ex-circuit. The sensor circuit is supplied a maximum input voltage and a maximum input current. The ex-circuit includes the secondary coil that receives an electrical signal from a primary coil. The electrical signal includes the data that are modulated onto the electrical signal. The sensor also includes a voltage limit that limits the voltage of the electrical signal to the maximum input voltage of the sensor circuit and a current limit that limits the current of the electrical signal to the maximum input current of the sensor circuit. Also disclosed are a sensor arrangement and a use of a sensor.

Abstract: Disclosed is a method and a corresponding distance-measuring device for measuring a distance to an object using FMCW radar. The method includes the frequency-dependent determination of the amplitude of the radar signal, i.e. the frequency response in the output path and in the input path of the distance-measuring device. The standard windowing of the evaluation signal can be corrected using a correction factor dependent on the frequency responses. Thus the frequency dependence of the radar signal is compensated independently of device-internal or external interferences by adapting the window function. The result is more accurate and reliable distance measurement using FMCW radar. Because the distance can be determined by the disclosed method very accurately and without distortion, it is advantageous to use the distance-measuring device as a fill-level measuring device to measure the fill level of a filling material in a container.

Abstract: A protective tube for insertion into a pipe or vessel containing a medium, a measuring apparatus having such protective tube and a method for manufacturing the protective tube are disclosed, the protective tube including a tubular member having a bore extending between an upper and lower end of the tubular member and having at least one helical fin on at least a section of an outer surface of the tubular member, winding around the outer surface of the tubular member and defining a flow channel along at least a part of the tubular member. At least one geometric parameter of the at least one helical fin is configured based on at least one process condition of the medium in the vessel or pipe.

Abstract: A method for producing a probe of a thermal flowmeter for measuring mass flow of a medium in a measuring tube, wherein a probe core is provided arranged loosely in a probe sleeve having a longitudinal axis, wherein the probe sleeve is deformed relative to the longitudinal axis completely radially in the direction of the probe core by means of high energy rate forming, wherein a material-locking connection between probe sleeve and probe core results and a rod is formed, wherein the rod represents a base body that is used for probe production, wherein a deformation speed reaches values greater than 100 m/s, and wherein the high energy rate forming includes explosive forming or magnetic forming.

Abstract: Disclosed is a high frequency module for producing or processing radar signals for use in radar-based fill-level measuring devices. The high frequency module includes: a semiconductor component to produce or to process electrical, high frequency signals; a dielectric coupling element contacted with the semiconductor component to couple the high frequency signals as radar signals into a dielectric waveguide or in order to couple radar signals from the waveguide as electrical, high frequency signals into the semiconductor component. The coupling element and the waveguide form a plug contact. In the case of appropriate design of the plug contact there results upon plug-in a self-centering, so that need for a complex adjustment during manufacturing is absent. Since radar frequencies of above 100 GHz can be produced by the semiconductor component, corresponding fill level measuring devices are characterized by a high measuring resolution and compact structures.

Abstract: The present disclosure relates to a coil apparatus of an oscillation sensor or exciter of a measuring transducer or a measuring instrument for measuring a density or a mass flow of a medium flowing through a measuring tube, comprising: a circuit board, at least one coil adapted for registering or producing a time varying magnetic field, wherein the at least one coil has a first coil end and a second coil end, wherein the coil apparatus has four contacting elements, wherein the circuit board has a cutting plane extending perpendicularly to the faces, wherein the cutting plane divides the faces into a first side and a second side, wherein one contacting element of a pair of contacting elements is arranged on the first side, and wherein one contacting element of a pair of contacting elements is arranged on the second side.

Abstract: A fluid guiding module includes a housing having a sensor chamber having first and second chamber ends. The fluid guiding module includes a first connection region for connecting to a second fluid guiding module. The first connection is located on a first outer side of the housing and has a first redirection channel having first and second redirection channel ends. A chamber inlet channel fluidly couples the first redirection channel end to the first chamber end of the sensor chamber. The first redirection channel is adapted to be fluidly coupled to a chamber outlet channel of the second fluid guiding module.

Abstract: An optochemical sensor for determining a measurement signal, which correlates with a concentration of an analyte of a measuring fluid, comprises: a sensor cap including a sensor spot, wherein the sensor spot contains at least one analyte-sensitive indicator dye and a state description indicator which reflects the aging state of the sensor spot; a radiation source to radiate excitation radiation onto the sensor spot and to excite a luminescence of the indicator dye; a radiation receiver to receive reception radiation emitted by the sensor spot; and a sensor circuit electrically connected to the radiation source and the radiation receiver and configured to control the radiation source and to generate, based on an intensity of luminescence and/or a phase angle of luminescence, a measurement signal representing the concentration of the analyte in the measuring fluid in contact with the sensor spot.

Abstract: Disclosed is a field detection device designed to be connected to at least one access point of a fieldbus network via at least one interface. The field detection device is designed to initiate or execute, for each of at least two connection protocols, an associated query in at least one fieldbus segment of the fieldbus network and to detect which field devices and fieldbus components in said at least one fieldbus segment can be accessed via the connection protocol in question. Furthermore, the field detection device is designed to provide a connection directory in which at least one connection protocol is specified for each field device and for each fieldbus component of a set of field devices and fieldbus components of the at least one fieldbus segment, by means of which connection protocol the field device in question or the fieldbus component in question can be accessed.

Abstract: The present disclosure relates to a securing element for a connector, comprising a securing element body having a receptacle that is designed to encompass at least one rear segment of a cable connector element connected to at least one cable, and having a base running substantially perpendicular to the connection direction of the cable connector element, said base having an opening through which the at least one cable connected to the cable connector element can be guided, wherein the base is designed to positively enclose a cable-side end face of the cable connector element; and wherein the securing element body has at least two snap hooks that extend in the plug-in direction and which in each case have at their free end a latching element, such as a latching lug.

Abstract: The present disclosure relates to an in-line compact measuring device, for example for optical measurements, comprising a housing having a process connection intended to be connected to a process vessel connection complementary to the process connection; at least one sensor assembly arranged in the housing; and a measuring circuit that is connected to the sensor assembly and is arranged in the housing. The in-line compact measuring device has at least one fluid line in thermally conductive contact with at least one housing wall of the housing, which fluid line can be connected to a cooling fluid supply arranged outside the housing.

Abstract: The present disclosure relates to a method for safe and exact ascertaining of fill level of a fill substance located in a container by means of an ultrasonic, or radar-based, fill level measuring device. In such case, the method is distinguished by the feature that the evaluation curve created based on the reflected received signal is differently greatly smoothed as a function of measured distance. To achieve this, the evaluation curve can be specially filtered, depending on the application. In this way, noise fractions and disturbance echoes can be efficiently suppressed, without unnecessarily limiting the accuracy of the fill level measurement.

Abstract: Disclosed is a field device adapter for wireless data transfer for connection to a field-device-internal interface provided for a display, comprising: an interface for connection to the field-device-internal interface; a radio module configured to wirelessly transmit a data packet on a low-power wide-area network, wherein the radio module is further configured to only transmit the data packet and not to receive any data packets; adapter electronics configured to limit an energy provided via the field-device-internal interface to a predefined value and to charge a stored energy source with the limited energy. The adapter electronics are further configured to monitor a state of charge of the stored energy source and, based on the state of charge, to provide the radio module with an energy originating from the stored energy source for transmitting the data packet.