A measuring device for measuring flow velocity includes a measuring tube, a measuring transducer for registering a measured variable and outputting a first measured value representing the measured variable, a temperature sensor, and an electronic measuring/operating circuit. The temperature sensor has a sensor element and electrically conductive leads. Each lead is connected with the sensor element and has a first section following on the connection location. The sensor element has a maximum periphery. The first section has a separation of less than 5% of a measuring tube radius from a measuring tube wall, wherein a length of each lead in the first section is at least 25% of the maximum periphery. The leads are guided in their first section at least in certain regions along the maximum periphery, and in their first section are in certain regions in thermal contact with the measuring tube.

Methods for operating a flowmeter diagnostic tool are provided that comprise interfacing the diagnostic tool with a flowmeter (5) sensor assembly (10). A base prover volume (BPV), a desired number of passes per run, and/or a maximum number of allowed runs may be input into the diagnostic tool. Flowmeter data is received. An estimated total prove time (TPT) necessary to pass a predetermined repeatability requirement, an estimated minimum number of runs needed to achieve the calculated TPT, and/or an estimated minimum BPV may be calculated. A standard deviation of the flowmeter sensor assembly flow rate (σ) is calculated, and the number of samples used to calculate a is determined. A meter-specific factor (MSF) is calculated.

Disclosed is a measuring sensor of a measuring device for detecting a mass flow rate. The measuring sensor comprises a measuring tube, a vibration exciter, and at least two vibration sensors. The vibration exciter and the vibration sensors each have a coil apparatus having at least one coil and at least one magnetic apparatus. The coil apparatus comprises a printed circuit board having at least one printed circuit board layer, wherein the coil is formed by means of an electrically conductive conductor track, wherein the coil is arranged on the first side and/or second side of a printed circuit board layer, wherein the printed circuit board comprises at least two contact-making elements for connecting the coil to an electronic measuring and/or operating circuit of the measuring device by means of connection elements, and is characterized in that at least one contact-making element has a hole.

The present disclosure relates to a Coriolis mass flow meter including two measuring tube pairs each having two measuring tubes mounted as to oscillate relative to one another and have a bending vibration excitation mode of different excitation mode natural frequencies, each pair having an electrodynamic exciter and a vibration sensor pair including a first inlet-side vibration sensor and a first outlet-side vibration sensor, and further includes a circuit configured to determine phase difference-dependent mass flow measurement values, wherein a difference deviation between a first relative signal amplitude difference of sensor signals having the first excitation mode natural frequency and a second relative signal amplitude difference of sensor signals having the second excitation mode natural frequency is not more than a tolerance value.

A transducer assembly (300) for a vibrating meter having meter electronics (20) is provided. The transducer assembly (300) comprises a keeper portion (401) comprising a keeper plate (402). A magnet portion (301) comprises a coil bobbin (305) and a coil (309) wound around the coil bobbin (305). A magnet (313) is coupled to the coil bobbin (305). The keeper plate (402) is prevented from contacting the coil bobbin (305).

Vibratory meters (5), and methods for their use measuring a fluid are provided. Each vibratory meter includes a multichannel flow tube (300) comprising two or more fluid channels (302), a pickoff (170), a driver (180), and meter electronics (20) configured to apply a drive signal to the driver at a drive frequency ω, and measure a deflection of the multichannel flow tube with the pickoff. At least one fluid channel has an effective diameter that is related to the length of the flow tube.

A vibratory measuring device for determining a mass flow rate or a density of a medium includes: a vibratory measuring tube which is curved when in a rest position; a support body; a first bearing body; a second bearing body; two exciter units and two sensor units; and a circuit. The bearing bodies are connected to the support body such that flexural vibration modes of the measuring tube have vibration nodes on the bearing bodies, wherein the exciter units are configured to excite flexural vibrations of the measuring tube, wherein the sensor units are each configured to detect flexural vibrations of the measuring tube both in and perpendicular to the plane and to output vibration-dependent sensor signals, wherein the circuit is configured to output excitation signals to the excitation units for the selective excitation of flexural vibration modes and to receive the sensor signals of the sensor units.

An apparatus for use with a Coriolis meter is provided. The apparatus includes an array of strain-based sensors, a filtering module, and a processing unit. The sensor array is configured for sensing a meter flow tube. The array is configured for mounting on the flow tube. The sensors are configured to produce sensor signals representative of strain within the flow tube. The processing unit controls the sensor array to produce the sensor signals representative of the strain within the flow tube. The strain includes a first portion associated with the flow tube vibrating at a resonant frequency of the flow tube and a second portion associated with a fluid flow passing through the flow tube. The filtering module filters the sensor signals to remove a sensor signal portion representative of the strain associated with the flow tube vibrating at the resonant frequency of the flow tube.

A meter electronics (20) for detecting and identifying a change in a vibratory meter (5) is provided. The meter electronics (20) includes a processing system (202) including a storage system (204) configured to store a central tendency value of a meter verification parameter and dispersion value of the meter verification parameter. The processing system (202) is configured to obtain the central tendency value and the dispersion value from the storage system (204) and determine a probability based on the central tendency value and the dispersion value to detect if the central tendency value is different than a baseline value.

The disclosure relates to a measuring transducer of a measuring device for registering a mass flow or a density of a medium flowing through a measuring tube of the measuring transducer. An exciter excites the measuring tube to execute oscillations. At least two sensors are adapted to register deflections of oscillations of the measuring tube. At least one exciter and the sensors each have a coil apparatus with, in each case, at least one coil, as well as, in each case, a magnet apparatus, wherein the magnet apparatuses are movable relative to their coil apparatuses. The magnet apparatus of a sensor or exciter has, in each case, at least one magnet, wherein the measuring transducer has a support body, which is adapted to hold the at least one measuring tube. The coil apparatuses of the sensors or the coil apparatus of the exciter are secured separately on the support body.