Abstract: A coriolis flowmeter, comprising a measurement device inlet and a measurement device outlet for a fluid, at least one directly measuring direct measuring tube (8, 9) with at least one oscillation generator (25) and at least two oscillation sensors (26, 27), at least one indirectly measuring indirect measuring tube (10) with an indirect measuring tube outlet (23) and at least one flow divider (13) arranged downstream of the measurement device inlet and upstream of the at least one direct measuring tube (8, 9) and the at least one indirect measuring tube (10) in the flow direction, is characterized in that the at least one direct measuring tube (8, 9) opens directly or indirectly into the indirect measuring tube (10) or one of the indirect measuring tubes (10) upstream of the indirect measuring tube outlet (23) in the flow direction. A method for operating a coriolis throughflow measurement device is also proposed.

Abstract: The invention relates to a method for ascertaining a flow parameter of a medium, in particular the mass flow rate, using a Coriolis flow meter of a specified measurement device type and to a device which is suitable for said method. According to the method, the medium, which has a medium viscosity, flows through at least one measurement tube piece that is mechanically vibrated by a respective excitation signal, at least one measurement signal dependent on the flow parameter, in particular a phase shift, is ascertained in the vibration behavior of the respective measurement tube piece, and the flow parameter is determined from the at least one measurement signal while taking into consideration the dependency of the flow parameter on the medium viscosity, wherein a data field which is ascertained using an interpolation method, in particular a kriging method, and which indicates the dependency of the flow parameter on the medium viscosity is used in order to determine the flow parameter.

Abstract: A coriolis mass flow meter, including: a housing body, having a flow inlet and flow outlet for a fluid medium, two measurement tubes, which are spaced apart from each other fastened to the housing body connecting the flow inlet and the flow outlet to each other, at least one electrically controllable vibration exciter for each measurement tube (23, 24), the vibration exciter being designed to cause the measurement tube to vibrate, and at least two electrically controllable vibration sensors, the vibration sensors being designed to sense the vibration of at least one of the two measurement tubes. The vibration exciter vibration sensors are spatially fixedly fastened to the housing body between the two measurement tubes and are designed as electromagnetic coils. Each coil interacts with a permanent magnet fastened to one of the measurement tubes. The permanent magnets are oriented in such a way that permanent magnets attract each other.

Abstract: A coriolis mass flow meter, including: a housing body, having a flow inlet and flow outlet for a fluid medium, two measurement tubes, which are spaced apart from each other fastened to the housing body connecting the flow inlet and the flow outlet to each other, at least one electrically controllable vibration exciter for each measurement tube (23, 24), the vibration exciter being designed to cause the measurement tube to vibrate, and at least two electrically controllable vibration sensors, the vibration sensors being designed to sense the vibration of at least one of the two measurement tubes. The vibration exciter vibration sensors are spatially fixedly fastened to the housing body between the two measurement tubes and are designed as electromagnetic coils. Each coil interacts with a permanent magnet fastened to one of the measurement tubes. The permanent magnets are oriented in such a way that permanent magnets attract each other.

Abstract: Embodiments of a device for compensating viscosity-induced measurement errors, for Coriolis flow measurement, employ a measuring transformer and a meter electronic unit.

Abstract: The invention relates to a Coriolis mass flow meter comprising two U-shaped measuring tubes having in each case two outer tube portions and an intermediate central tube portion. It comprises a vibration exciter for the purpose of effecting defined excitation of a movement of the measuring tubes, two vibration sensors for detecting movements of the measuring tubes and also a housing for accommodating at least parts of the measuring tubes. The inlets and outlets are rigidly connected to the housing. A first and a second cross brace, disposed in the region of the tube between its inlets and outlets for the purpose of coupling the two measuring tubes, form the vibration nodes of the measuring tubes. A tube portion of one measuring tube is integrally united with a tube portion of the other measuring tube. Furthermore, the two tube portions are integrally united with parts of the housing or integrally united with of one of the cross braces.

Abstract: The invention relates to a Coriolis mass flow meter comprising two U-shaped measuring tubes having in each case two outer tube portions and an intermediate central tube portion. It comprises a vibration exciter for the purpose of effecting defined excitation of a movement of the measuring tubes, two vibration sensors for detecting movements of the measuring tubes and also a housing for accommodating at least parts of the measuring tubes. The inlets and outlets are rigidly connected to the housing. A first and a second cross brace, disposed in the region of the tube between its inlets and outlets for the purpose of coupling the two measuring tubes, form the vibration nodes of the measuring tubes. A tube portion of one measuring tube is integrally united with a tube portion of the other measuring tube. Furthermore, the two tube portions are integrally united with parts of the housing or integrally united with of one of the cross braces.