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.

An example fluid parameter sensor and meter is disclosed to measure at least one parameter of a fluid. In an example, the fluid parameter meter includes an outer conduit. A sensor element assembly is disposed in the outer conduit and having a plurality of sensor elements to convey the fluid inside of the sensor element assembly. At least one mounting flexure is fixedly attached to the sensor element assembly and to the outer conduit. The at least one mounting flexure is configured to enable the sensor element assembly to vibrate in a radial motion. At least one vibration driver causes the sensor element assembly to vibrate in the radial motion. At least one vibration sensor senses the radial motion of the sensor element assembly. Controlling electronics measure at least one parameter of a fluid based on said radial motion.

An electromagnetic transducer is disclosed. An example electromagnetic transducer may be provided for a fluid parameter meter. The example electromagnetic transducer may include at least one permanent magnet, a first armature mounted in magnetic cooperation with the permanent magnet, and a second armature mounted in magnetic cooperation with the permanent magnet. The first and the second armatures are arranged to interact with a third armature in magnetic cooperation with the first armature and the second armature. The example electromagnetic transducer may also include at least one electric coil mounted in cooperation with the magnetic field so that electric current through the electric coil to vary the vibratory forces. The example electromagnetic transducer may include an electronic module to control electric current and vibratory forces on a vibrating element of the fluid parameter meter.

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 method for operating a Coriolis measurement device comprises: recording the measured voltages from the sensors and creating an asymmetric sequence of values using the amplitudes of the measured voltages for the purpose of diagnosing the Coriolis measurement device; checking whether the asymmetric sequence of values satisfies at least one invalidity criterion; and creating a stabilized asymmetric sequence of values on the basis of the asymmetric sequence of values by replacing asymmetric measured values with substitute values. While an invalidity criterion is satisfied a last valid measured value of the asymmetric sequence of values is used as the current value of the stabilized asymmetric sequence of values, or the stabilized asymmetric sequence of values is set to a predetermined value, a first invalidity criterion being based on a scattering parameter of the asymmetric value exceeding a first limit value.

The Coriolis mass flowmeter comprises a measuring transducer having a vibration element, an exciter arrangement, and a sensor arrangement The flowmeter further includes an electronic transmitter circuit coupled with the exciter arrangement and the sensor arrangement. The transmitter circuit supplies power to the exciter arrangement to force mechanical oscillations having a wanted frequency. The sensor arrangement includes two electrodynamic oscillation sensors to convert oscillatory movements of the vibration element into an electrical signal having an alternating voltage having an amplitude dependent on the wanted frequency and on a magnetic flux of its oscillation sensor. The sensor arrangement includes a magnetic field detector adapted to convert changes of the magnetic field into a magnetic field signal having an amplitude dependent on a magnetic flux and/or an areal density of the magnetic flux. The transmitter circuit ascertains mass flow measured values and ascertains whether an external magnetic field is present.

An example fluid parameter sensor and meter is disclosed to measure at least one parameter of a fluid. In an example, the fluid parameter meter includes an outer conduit. A sensor element assembly is disposed in the outer conduit and has at least one straight uniform sensor element with an open interior to convey the fluid inside of the sensor element assembly. At least one mounting flexure is fixedly attached to the sensor element assembly and to the outer conduit. The at least one mounting flexure is configured to enable the sensor element assembly to vibrate in a natural radial mode shape of vibration. At least one vibration driver causes the sensor element assembly to vibrate. At least one vibration sensor senses the vibration of the sensor element assembly.

An example fluid parameter sensor and meter is disclosed to measure at least one parameter of a fluid. In an example, the fluid parameter meter includes an outer conduit, A sensor element assembly is disposed in the outer conduit and having a plurality of sensor elements to convey the fluid inside of the sensor element assembly. At least one mounting flexure is fixedly attached to the sensor element assembly and to the outer conduit. The at least one mounting flexure is configured to enable the sensor element assembly to vibrate in a radial motion. At least one vibration driver causes the sensor element assembly to vibrate in the radial motion. At least one vibration sensor senses the radial motion of the sensor element assembly. Controlling electronics measure at least one parameter of a fluid based on said radial motion.

A mass flow meter is disclosed. The mass flow meter has a tubular housing (250) extending along a longitudinal axis and configured to receive a flow of fluid (351) therethrough. A flexible plate (352) extends along at least a part of the tubular housing and is at least partially coupled to an interior wall of the tubular housing at opposed longitudinal ends of the flexible plate such that the flexible plate is able to vibrate in torsion. At least one electromagnetic actuator system (302, 303) is configured to apply at least two oscillating torques to the flexible plate sufficient to vibrate the flexible plate in torsion. At least two sensor systems (301, 304) are configured to measure oscillations of the flexible plate as a function of time at locations arising from the at least two applied oscillating torques. A method for measuring mass flow through the at least one tubular housing is also disclosed.