Abstract: A method for determining a deposit property of a variable deposit on an end face of a first microwave antenna of an assembly for determining a property of a multiphase medium that is to be conveyed, wherein the first microwave antenna is arranged in a first receptacle of the measuring pipe in a medium-contacting manner, wherein the method comprises emitting an excitation signal by means of the first microwave antenna, wherein the excitation signal comprises a sequence of high-frequency signals; receiving a reflected excitation signal by means of the first microwave antenna; determining a first test quantity on the basis of the reflected excitation signal; and determining on the basis of the first test quantity the deposit property of the variable deposit, in particular a variable dependent on a deposit thickness of the variable deposit.

Abstract: A device for determining a flow-rate-dependent variable of a flowable and conductive medium in a guide body for guiding the medium includes a magnetic-field-generating device for generating a first magnetic field that separates mobile charge carriers in the medium and a magnetic-field-sensitive measuring arrangement for determining a second magnetic field that is generated by the mobile charge carriers. The magnetic-field-sensitive measuring arrangement includes a first magnetic-field-sensitive measuring device having a magnetic-field-sensitive and optically excitable material, an optical excitation unit for the optical excitation of the first magnetic-field-sensitive measuring device, and an optical detection unit for detecting a measurement signal that correlates with a change and/or a strength of the second magnetic field.

Abstract: The method determines a characteristic passage time of a component of a flowing medium in a vibrating measuring tube of a Coriolis mass flow meter. The flow meter has the measuring tube, an exciter for exciting a bending vibration mode of the measuring tube, and a vibration sensor for sensing the measuring tube vibrations. The component is present inhomogenously in the medium and has a component density which deviates from an average density of the medium. The method includes feeding an excitation signal to the exciter with a natural frequency a bending vibration mode, ascertaining at least one first time profile of a signal amplitude of the first vibration sensor at a natural frequency of an anti-symmetrical bending vibration mode, and ascertaining the characteristic passage time on the basis of the first time profile of the signal amplitude at the natural frequency of the anti-symmetrical bending vibration mode.

Abstract: A microwave measuring device comprises a measuring tube for conducting the medium; a first microwave antenna designed to generate a variable microwave signal and to emit said signal into the medium; and a magnetic-field-sensitive measuring device for determining a magnetic field and comprising a measuring device component having an optically excitable material, the microwave signal acting on the optically excitable material; an optical excitation device designed to optically excite the optically excitable material; and an optical detection device designed to provide a detection signal correlating with a light emitted by the optically excitable material. An evaluation circuit is designed to determine a magnetic field and/or a change in the magnetic field on the basis of the detection signal.

Abstract: A method for detecting a foreign body in a flowable medium includes determining a first time curve of a first measured value using a first measuring device for determining a physical density of the medium. The method also includes determining a second time curve of a second measured value using a second measuring device for ascertaining a relative permittivity of the medium. A temporal correlation between the first curve and the second curve is determined, and pairs of measured values of the first measured value and the second measured value are detected. The method further includes checking whether the detected pairs of measured values within a predefined tolerance interval correspond to the correlation of at least one predefined function. If this is not the case, it is established that the foreign body is present in the medium.

Abstract: A method for distinguishing between the presence of a foreign body and a gas bubble in a flowable medium in a pipeline or a container includes evaluating received microwave signals, wherein mechanical vibrations are introduced into the medium by means of which a gas bubble present in the medium is set into vibration. A gas bubble is detected only in the event that when mechanical vibrations are introduced and the received microwave signals or the value derived therefrom is/are modulated; otherwise, a foreign body is detected. Also disclosed is a system which is suitable for carrying out the method according to the present disclosure.

Abstract: A measuring tube arrangement of a measuring device for detecting a mass flow rate of a flowable medium includes: two measuring tubes for conducting the medium, wherein the measuring tubes each have an inlet and an outlet, wherein the measuring tubes are bent at least once between the inlet and outlet; a coupler arrangement for mechanically coupling the two measuring tubes, wherein the coupler arrangement has at least two coupler elements, wherein one coupler element is arranged at the inlet, and one coupler element is arranged at the outlet; two magnet arrangements, each having at least two magnets, arranged on the measuring tubes, wherein precisely one magnet arrangement is arranged on one measuring tube; and a connecting body configured to mechanically detachably connect the measuring tube arrangement to a carrier unit, wherein the connecting body is connected to the inlet and to the outlet of the respective measuring tubes.

Abstract: The present disclosure relates to a system for identifying the presence of a foreign body in a flowable medium in a pipeline. The system comprises a pipeline having a line inlet section and a choke section and also comprises a first transmitting/receiving unit for the line inlet section and a second transmitting/receiving unit for the line outlet section and a superordinate unit, which system is designed to ascertain the presence of a foreign body in the medium on the basis of at least one comparison between the mean permittivity (epsilon_m,3) in the choke section and the mean permittivity (epsilon_m,1) in the line inlet section.

Abstract: The present disclosure relates to a device for determining a flow-velocity-dependent variable of a medium in a guide body, where the guide body includes a magnetic-field-generating device generating a first magnetic field separating movable charge carriers in the medium, and a magnetic-field-sensitive measuring assembly designed to provide a measurement signal and which correlates with a change in and/or a strength of a second magnetic field generated by the movable charge carriers. The magnetic field-sensitive measuring assembly comprises a magnetic-field-sensitive measuring device that comprises an optically excitable material. The magnetic-field-sensitive measuring assembly has an optical excitation unit for optically exciting the magnetic-field-sensitive measuring device and an optical detection unit for detecting the measurement signal.

Abstract: An arrangement includes a pipeline and a Coriolis volumetric flow meter for measuring a mass flow rate of a medium flowing through the pipeline. A first pressure sensor is attached at an inlet-side of the pipeline and a second pressure sensor is attached at an outlet-side of the pipeline, or wherein a differential pressure sensor is configured to detect a difference between an inlet-side and an outlet-side. The pressure sensors and/or the differential pressure sensor are configured to measure a media pressure and to determine, for each differential pressure, a volumetric flow velocity of the medium through the pipeline. A first monitoring sensor is attached at an inlet-side portion of the pipeline and a second monitoring sensor is attached at an outlet-side portion of the pipeline, wherein the monitoring sensors are configured to monitor a measurement variable different from the media pressure to identify a static media state.

Abstract: A measuring tube arrangement of a measuring device for detecting a mass flow rate of a flowable medium includes: two measuring tubes for conducting the medium, wherein the measuring tubes each have an inlet and an outlet, wherein the measuring tubes are bent at least once between the inlet and outlet; a coupler arrangement for mechanically coupling the two measuring tubes, wherein the coupler arrangement has at least two coupler elements, wherein one coupler element is arranged at the inlet, and one coupler element is arranged at the outlet; two magnet arrangements, each having at least two magnets, arranged on the measuring tubes, wherein precisely one magnet arrangement is arranged on one measuring tube; and a connecting body configured to mechanically detachably connect the measuring tube arrangement to a carrier unit, wherein the connecting body is connected to the inlet and to the outlet of the respective measuring tubes.

Abstract: A method for ascertaining a physical parameter of a liquid, which has a gas charge using a measuring transducer having a measuring tube for conveying the medium. The measuring tube executes oscillations in bending oscillation mode. The method includes: exciting the measuring tube with an eigenfrequency of a bending oscillation mode—or f1-mode, ascertaining a suppressed excitation frequency, at which the oscillation amplitude of the measuring tube is minimum; identifying the frequency as the resonant frequency of the gas-charged liquid; ascertaining a density correction term as a function of the resonant frequency for correcting a preliminary density measured value and/or mass flow correction term as a function of the resonant frequency for correcting a preliminary mass flow rate measured value, and/or ascertaining the velocity of sound in the gas-charged liquid in the measuring tube as a function of the resonant frequency.

Abstract: A method for determining a flowed amount of a medium includes using a first flow measuring transducer according to a first measuring principle and a second flow measuring transducer according to a second measuring principle. The measured values of the first transducer are more reliable in first states of the medium than measured values of the second transducer, and the second measured values are more reliable in second states than the first measured values. A contribution to the flowed amount is ascertained based on the more reliable measured values. The contribution to the flowed amount based on the second measured values is ascertained via a transfer function. An updated version of the transfer function is ascertained when the first measured values are more reliable, and the flowed amount earlier ascertained based on the second measured values is corrected as a function of the updated transfer function.

Abstract: A method for determining a deposit property of a variable deposit on an end face of a first microwave antenna of an assembly for determining a property of a multiphase medium that is to be conveyed, wherein the first microwave antenna is arranged in a first receptacle of the measuring pipe in a medium-contacting manner, wherein the method comprises emitting an excitation signal by means of the first microwave antenna, wherein the excitation signal comprises a sequence of high-frequency signals; receiving a reflected excitation signal by means of the first microwave antenna; determining a first test quantity on the basis of the reflected excitation signal; and determining on the basis of the first test quantity the deposit property of the variable deposit, in particular a variable dependent on a deposit thickness of the variable deposit.

Abstract: A method for determining a coating property of a variable coating on an inner circumferential surface of a measuring tube includes emitting an excitation signal from the first microwave antenna, wherein the excitation signal comprises a sequence of high-frequency signals; receiving the excitation signal by the second microwave antenna; determining a first test variable from the received excitation signal and/or from an integral transform of the received excitation signal, wherein the first test variable is characteristic of the propagation of the excitation signal along a first propagation path, wherein the first propagation path describes an at least partial propagation of the excitation signal by the variable coating on the inner circumferential surface; and determining the coating property of the variable coating, in particular a variable dependent upon a coating thickness of the variable coating, based upon the first test variable.

Abstract: A method for operating a magnetically-inductive flowmeter, wherein the magnetically-inductive flowmeter includes: a measuring tube for guiding a flowable medium; at least two measuring electrodes for detecting a flow velocity-dependent measuring voltage induced in the medium; and a magnetic field-generating device for generating a magnetic field passing through the measuring tube, wherein the magnetic field-generating device includes a coil system with at least one coil, includes determining a deviation ? of a reactance of the coil system or of a variable dependent upon the reactance of the coil system from a desired value. A magnetically inductive flowmeter is also disclosed.

Abstract: Disclosed is a method for determining of fat content of milk having variable solids fractions and flowing with variable gas content in a pipeline. The method includes ascertaining a velocity of sound and an average density value for the milk based on eigenfrequencies of at least two bending oscillation wanted modes of measuring tubes of a densimeter arranged in the pipeline. The method further includes ascertaining a static pressure in the pipeline; a gas volume fraction based on the velocity of sound; the average density; the pressure; a density of the milk without gas content based on the average density and the gas volume fraction; and a permittivity of the milk based on a propagation velocity and/or an absorption of microwaves in the milk. The fat fraction is calculated based on the density of the milk without gas content and on the effective permittivity.

Abstract: A measuring tube arrangement of a measuring device for detecting a mass flow rate of a flowable medium includes: two measuring tubes for conducting the medium, wherein the measuring tubes each have an inlet and an outlet, wherein the measuring tubes are bent at least once between the inlet and outlet; a coupler arrangement for mechanically coupling the two measuring tubes, wherein the coupler arrangement has at least two coupler elements, wherein one coupler element is arranged at the inlet, and one coupler element is arranged at the outlet; two magnet arrangements, each having at least two magnets, arranged on the measuring tubes, wherein precisely one magnet arrangement is arranged on one measuring tube; and a connecting body configured to mechanically detachably connect the measuring tube arrangement to a carrier unit, wherein the connecting body is connected to the inlet and to the outlet of the respective measuring tubes.

Abstract: A gas separator for separating a multiphase medium containing a gas and a liquid includes a tubular basic unit having a longitudinal axis, an intake for a gaseous medium, a liquid outlet and a gas outlet. The tubular basic unit has an intake region and a discharge region. The gas separator includes, between the intake region and the discharge region, a weir having a guiding surface, over which the medium can flow to form a shallow water region. The gas contained in the medium can escape from the medium in the shallow water region and be led away from the gas separator through the gas outlet. The disclosure is also directed to an apparatus for registering flow of at least one component of a multiphase medium.

Abstract: Disclosed is a sensor arrangement on a process installation comprising at least two sensor tiles, wherein each sensor tile comprises a support and a plurality of sensors arranged on the support for determining a physical or chemical variable of a measuring medium, a process characteristic of the measuring medium, and/or a state of the process installation. A first sensor tile comprises a control unit having a transmit and receive module for data exchange with a control unit of a second sensor tile. The first control unit of the first sensor tile and/or a second control unit allocated to the sensor arrangement is designed to weight the values determined by each sensor tile. Weighting may be a function of the measured value variations of the sensor tile, the position of the sensor tile in the process installation, and/or the function of the sensor tile.