A Coriolis mass flow meter, comprising a housing with an inlet and an outlet for a fluid medium, which are arranged along a flow axis, two measuring tubes configured to allow the fluid medium to flow through them in a flow direction and arranged between the inlet and the outlet and having a measuring tube circumference on their external surface, a fixing element which connects the two measuring tubes in the region of the inlet and/or the outlet in such a manner that they are fixed in position relative to one another, wherein the fixing element includes a first connecting member and a second connecting member connected to both measuring tubes, and wherein each of the connecting members rests against the measuring tubes in such a manner that a part of the measuring tube circumference of each measuring tube remains free.

The present disclosure relates to a transducer comprising a tube, a converter unit, an electromechanical exciter arrangement for stimulating and sustaining forced mechanical vibrations of the converter unit, and a sensor arrangement for detecting mechanical vibrations of the converter unit and for generating a vibration signal representing mechanical vibrations of the converter unit. The converter unit includes two connection elements connected to a displacer element and is inserted into the tube and connected thereto. The converter unit is configured as to be contacted by a fluid flowing through the tube and enabled to vibrate such that the connection elements and the displacer elements are proportionately elastically deformed. The transducer can be a constituent of a measuring system adapted to measure and/or monitor a flow parameter of the flowing fluid and further includes an electronic measuring and operating system coupled to the exciter arrangement and the sensor arrangement of the transducer.

A meter electronics (100) for two or more meter assemblies (10a, 10b). The meter electronics (100) includes a processor (110) and one or more signal processors (120) communicatively coupled to the processor (110). The one or more signal processors (120) are configured to communicatively couple to a first meter assembly (10a) and a second meter assembly (10b). Accordingly, only one meter electronics can be employed to control the two or more meter assemblies, which may reduce the costs associated with employing two meter electronics.

A method of limiting a drive signal is provided. The method includes providing a drive signal for a meter assembly, wherein the meter assembly has a resonance frequency. The method also includes interrupting the drive signal after a first drive time-period, wherein the first drive time-period is based on an expected time for the drive signal to reach the resonance frequency.

A Coriolis mass flow meter, comprising a housing with an inlet and an outlet for a fluid medium, which are arranged along a flow axis, two measuring tubes configured to allow the fluid medium to flow through them in a flow direction and arranged between the inlet and the outlet and having a measuring tube circumference on their external surface, a fixing element which connects the two measuring tubes in the region of the inlet and/or the outlet in such a manner that they are fixed in position relative to one another, wherein the fixing element includes a first connecting member and a second connecting member connected to both measuring tubes, and wherein each of the connecting members rests against the measuring tubes in such a manner that a part of the measuring tube circumference of each measuring tube remains free.

A mass flow meter and methods for using the same are provided. The mass flow meter can include a tubular housing, a flexible plate, an actuator, and at least two sensors. The flexible plate can be coupled to an interior wall of the tubular housing such that the flexible plate can vibrate in torsion. The actuator can be configured to apply an oscillating torque to the flexible plate sufficient to vibrate the flexible plate in torsion. The at least two sensors can each be configured to measure oscillations of the flexible plate as a function of time at different locations. The mass flow meter can also include a computing device in electrical communication with the at least two sensors and configured to determine a mass flow of fluid passing through the tubular housing from a phase shift between oscillations of the flexible plate measured by the at least two sensors.

The flowmeter having at least one measuring tube and having at least one inlet element, wherein the inlet element is connected to the at least one measuring tube and is arranged before the at least one measuring tube in respect to flow direction. The flowmeter that is also suitable for the verification of erosive media is achieved in that at least one inflow element is provided, wherein the inflow element is arranged at least partly within the inlet element and wherein the inflow element is detachably connectable to the inlet element.

A mass flow meter and methods for using the same are provided. The mass flow meter can include a tubular housing, a flexible plate, an actuator, and at least two sensors. The flexible plate can be coupled to an interior wall of the tubular housing such that the flexible plate can vibrate in torsion. The actuator can be configured to apply an oscillating torque to the flexible plate sufficient to vibrate the flexible plate in torsion. The at least two sensors can each be configured to measure oscillations of the flexible plate as a function of time at different locations. The mass flow meter can also include a computing device in electrical communication with the at least two sensors and configured to determine a mass flow of fluid passing through the tubular housing from a phase shift between oscillations of the flexible plate measured by the at least two sensors.

A Coriolis flowmeter includes a change ratio obtainer configured to obtain a change ratio of vibration of a vibration tube when the vibration tube is vibrated with a constant driving force by causing a switch to select a fixed gain setting voltage, a calculator configured to calculate a first parameter indicating at least one of a spring constant of the vibration tube and a damping coefficient of the vibration tube on the basis of the change ratio obtained by the change ratio obtainer and the constant driving force, and a predictor configured to predict at least one of a time, an operating time, and an integrated flow rate of a fluid flowing in the vibration tube required for a state of the vibration tube to become a state requiring maintenance, using the first parameter calculated by the calculator or a second parameter obtained by performing a predetermined calculation on the first parameter.

A method of limiting a drive signal is provided. The method includes providing a drive signal for a meter assembly, wherein the meter assembly has a resonance frequency. The method also includes interrupting the drive signal after a first drive time-period, wherein the first drive time-period is based on an expected time for the drive signal to reach the resonance frequency.