Abstract: A flow measuring device comprising a measurement signal-generating sensor element and a metal connection element, especially one manufactured in a generative manufacturing method, for connecting the measurement signal-generating sensor element with an opening or sensor nozzle of a tube, where the connection element is connected with a pressure-bearing component comprising a sleeve and a wall, which extends over the entire cross section in parallel projection in the direction of a longitudinal axis of the sleeve, wherein the pressure bearing component has at least one electrical cable guide and a potting compound, wherein the potting compound fills the sleeve partially or completely, and wherein the pressure bearing component is arranged in the opening or in the sensor nozzle of the tube radially behind the connection element with reference to the longitudinal axis of the tube.

Abstract: The present disclosure relates to a method for operating a magnetoinductive flowmeter as well as to such a flowmeter, wherein a disturbance superimposed on a measurement signal is at least partially compensated for by negative feedback of the disturbance to the measurement signal.

Abstract: A method for automated in-line detection of deviations of an actual state of a fluid from a reference state is disclosed wherein measured values captured at the same time are evaluated in a combined manner with respect to at least three measurement variables that are different measurement quantities of the fluid and/or a measurement quantity of the fluid measured at different measuring points. The method includes creating a reference data set, wherein reference measured values are mapped to a reference vector of a vector space using a neural network; in-line measurement, wherein measured values at all times are mapped to a measurement vector using the neural network; comparing the measurement vector with the reference vectors using a kernel density estimator of a predefinable window width; and creating an assessment with respect to a deviation of the actual state from the reference state on the basis of the kernel density estimator.

Abstract: The present disclosure relates to a housing for a flow measuring device and a flow measuring device. The housing includes a housing body having a housing wall and a housing chamber, where the housing wall has a first wall element and a second wall element. The first wall element and the second wall element enclose the housing chamber, and the housing chamber is configured to receive a measuring tube. The housing wall has first and second openings configured to support the measuring tube at first and second measuring tube ends. The first wall element has a first leaf and a second leaf, and the second wall element has a third leaf and a fourth leaf, where the first leaf and the second leaf and also the third leaf and the fourth leaf engage flush in one another.

Abstract: The present disclosure relates to a thermal flowmeter comprising at least one measurement sensor having at least one sensor element for determining a measured value for determining the flow rate of a medium. A measurement transducer determines the flow rate using the determined measured value. A tubular connecting element connects the measurement sensor to the measurement transducer and a protective sleeve is provided, which is mechanically connected to the tubular connecting element. The protective sleeve has a sleeve casing having at least two openings, an inflow opening through which the medium can be delivered to the measurement sensor and an outflow opening through which the medium can flow out of the measurement sensor. The connection between the protective sleeve and the tubular connecting element is a connection which is positively engaged at least in part.

Abstract: The present disclosure relates to a measuring assembly comprising: a metallic measuring tube open on both sides for carrying a medium, wherein the measuring tube has an outer circumferential surface, an inner circumferential surface, and at least two apertures, wherein the two apertures extend from the outer circumferential surface to the inner circumferential surface; a dielectric cladding layer, which rests on the inner circumferential surface of the measuring tube; a first microwave antenna, which is arranged in the measuring tube and with which contact can be made through the first aperture; a second microwave antenna which is arranged in the measuring tube and with which contact can be made through the second aperture; wherein the dielectric cladding layer forms a dielectric waveguide, via which microwaves can, at least to some extent, reach from the first microwave antenna to the second microwave antenna.

Abstract: A measuring device comprising at least two output units for output of measured values, wherein the output units are optically coupled. The optical coupling effects a lessening of the manufacturing effort as well as a galvanic isolation of the output units.

Abstract: The present disclosure relates to a process connection for connecting a flow measuring device, to a pipeline, the process connection including a base body having an opening for conducting a medium and a flow rectifier, wherein the flow rectifier is inserted into a first recess of the base body and fixed in place by plastic deformation of an edge region of the base body surrounding the first recess, for example, by press fitting.

Abstract: The present disclosure relates to a housing for a field device in measuring and automation technology for monitoring and/or determining at least one process variable of a medium, wherein the housing includes at least one housing body which has, in the interior thereof, a housing chamber which is defined by a housing wall, wherein the housing wall has at least one opening, into which opening a threaded element is inserted in a releasably fastened manner, which threaded element is set up to receive a cover, wherein the opening can be tightly closed by means of the cover.

Abstract: A measuring system includes a measuring and operation electronic unit (ME) and a transducer device electrically coupled thereto. The transducer device (MW) has at least one tube, through which fluid flows during operation and which is caused to vibrate meanwhile, a vibration exciter, two vibration sensors for generating vibration signals, and two temperature sensors for generating temperature measurement signals (?1, ?2). The temperature sensors are coupled to a wall of the tube in a thermally conductive manner. The ME is designed to feed electrical power into the at least one vibration exciter to cause mechanical vibrations of the tube by an electrical excitation signal. The ME generates a mass flow sequence representing the instantaneous mass flow rate (m) of the fluid, so that, at least for a reference mass flow rate, the mass flow measurement values are independent of the temperature difference.

Abstract: The present disclosure relates to a gas analyzer for measuring density and/or viscosity of a medium. The gas analyzer includes a connection panel having first and second media openings, each of which extends from a first surface to a second surface of the connection panel. A sensor panel is joined together with the connection panel on a first joint plane, and a cover panel is joined together with the sensor panel on a second joint plane, on a sensor panel face facing away from the connection panel. The cover panel has a cover panel cavity which communicates with the first and second media openings, and the sensor panel has at least one oscillator cavity which communicates with the first and second media openings. The sensor panel has a micromechanical oscillator arranged in the oscillator cavity and excitable to mechanically vibrate perpendicularly to the joint planes.

Abstract: The present disclosure relates to a magnetically inductive flow measuring device comprising: a measuring tube; a magnet system having a coil system, wherein the magnet system has a coil holder that holds the coil system; a pair of measuring electrodes; a field guide-back that passes around the measuring tube and comprises a first part and an equal second part each with a first planar end, a second planar end and a central region, wherein the first part and second part are adapted to be brought together via their ends, wherein each of the first ends and the second ends has an engagement opening and an engagement means, wherein the engagement means of each end is adapted upon bringing together of the equal parts to engage in an engagement opening of an end of the other equal part.

Abstract: In a driver circuit having a signal generator, end stage and amplitude control, the signal outputs an analog signal to a signal input of the end stage, with an amplitude predetermined by an amplitude control value. A load output of the end stage is connected with a voltage measurement input of the amplitude control providing a load current having an electrical current level dependent on an electrical input signal applied on signal input and a load voltage having a voltage level dependent on the electrical current level of the load current. The amplitude control ascertains an amplitude deviation between actual and desired amplitude values for ascertaining an indicator value, which signals that a magnitude of a measurement voltage input is too high, if a threshold value has been exceeded and, if so, to ascertain an amplitude control value lessening further amplitude control values outputted to the amplitude control input.

Abstract: The present disclosure relates to a method for operating a magnetic-inductive flow meter for measuring the flow rate or the volumetric flow of a medium in a measuring tube and to such a flow meter, wherein the medium is acted upon by magnetic fields of different polarity and field strength, wherein the alternation between magnetic fields causes a voltage pulse in the medium, wherein a voltage pulse during a phase without a magnetic field is used for calculation of a correction of an electrode voltage characteristic.

Abstract: A measuring transducer includes a support body, a curved oscillatable measuring tube, an electrodynamic exciter, at least one sensor for registering oscillations of the measuring tube, and an operating circuit. The measuring tube has first and second bending oscillation modes, which are mirror symmetric to a measuring tube transverse plane and have first and second media density dependent eigenfrequencies f1, f3 with f3>f1. The measuring tube has a peak secant with an oscillation node in the second mirror symmetric bending oscillation mode. The operating circuit is adapted to drive the exciter conductor loop with a signal exciting the second mirror symmetric bending oscillation mode. The exciter conductor loop has an ohmic resistance R? and a mode dependent mutual induction reactance Rg3 which depends on the position of the exciter.

Abstract: A measuring system comprises: a measuring transducer; transmitter electronics; at least one measuring tube; and at least one oscillation exciter. The transmitter electronics delivers a driver signal for the at least one oscillation exciter, and for feeding electrical, excitation power into the at least one oscillation exciter. The driver signal, has a sinusoidal signal component which corresponds to an instantaneous eigenfrequency, and in which the at least one measuring tube can execute, or executes, eigenoscillations about a resting position. The eigenoscillations have an oscillation node and in the region of the wanted, oscillatory length exactly one oscillatory antinode. The driver signal has, a sinusoidal signal component with a signal frequency, which deviates from each instantaneous eigenfrequency of each natural mode of oscillation of the at least one measuring tube, in each case, by more than 1 Hz and/or by more than 1% of said eigenfrequency.

Abstract: The present disclosure relates to a method for producing a probe of a thermal flow meter for measuring the mass flow rate of a medium in a measuring tube, the method having the following steps: introducing a probe core in the form of a material to be melted into a first probe casing, the first probe casing having an open first end and a closed second end facing away from the first end; melting the probe core; quenching the probe core to a temperature below the solidification temperature; attaching a thermoelement to a contact surface of the solidified probe core. The invention also relates to a probe obtained according to the production method and to a flow meter including the probes according to the present disclosure.

Abstract: A magnetic-inductive flow meter and a method for operating such a magnetic-inductive flow meter for measuring the flow velocity or the volumetric flow rate of a medium in a measuring tube include subjecting the medium to magnetic fields of different polarity and field strength such that the changing between magnetic fields causes a voltage pulse in the medium and analyzing the voltage pulse to calculate a correction of an electrode voltage profile of a measuring electrode pair of the flow meter.

Abstract: The present disclosure relates to a clamp-on ultrasonic sensor for an ultrasonic flow rate measuring device and to an ultrasonic flow rate measuring device comprising at least one clamp-on ultrasonic sensor according to the present disclosure. The clamp-on ultrasonic sensor is designed to generate at least one lamb wave mode in a measuring tube wall of a measuring tube of the ultrasonic flow rate measuring device. To ensure the use of the clamp-on ultrasonic sensor on different types of measuring tubes, the clamp-on ultrasonic sensor comprises a coupling element, which coupling element is adapted to a respective type of measuring tube.

Abstract: An adapter includes several connecting nozzles. Free nozzle ends of the connecting nozzles are adapted to be connected to line ends of fluid lines. The adapter includes, for guiding flowing fluid in and then out, two mutually separated, tubular flow channels. Moreover, the adapter includes a projection, which extends from the nozzle end with a length to a free projection end remote therefrom. A fluid line system formed by means of the adapter comprises, furthermore, a fluid line with, enveloped by a wall, a lumen. The fluid line can be connected with its line end to the connecting nozzle of the adapter in such a manner that the projection protrudes inwardly into the lumen of the fluid line to form two tubular chambers of the fluid line mutually separated by the projection and adapted for guiding through flowing fluid.