Krohne Ag

Christopher Rolph

Tao Wang

Yousif A Hussain

Trevor Fawcett

Gary Jones

Nei Harrison

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.

Flowmeter

A Coriolis mass flowmeter with a flange connection for connection to an external pipeline, with at least one oscillation generator, with at least two oscillation sensors, with at least two measuring tubes, with at least one flow divider, wherein the flow divider is arranged upstream of the at least two measuring tubes in the direction of flow, and with at least one flow collector, wherein the flow collector is arranged downstream of the at least two measuring tubes. The Coriolis mass flowmeter has at least an active measuring tube and at least a passive measuring tube being provided, the at least one active measuring tube and the at least one passive measuring tube are designed and arranged separately from one another and the at least one oscillation generator and the at least two oscillation sensors are arranged on the at least one active measuring tube.

Coriolis mass flowmeter and method for operating a Coriolis mass flowmeter

A Coriolis mass flowmeter having at least one curved measuring tube having an inlet end, outlet end and a central curved section between the inlet end and outlet end, a carrier bridge extending between the inlet end and outlet end of the measuring tube and fixing the measuring tube ends, at least one oscillation generator attached to the measuring tube, at least one oscillation sensor for detecting measuring tube oscillations, an evaluation unit for evaluating detected measuring tube oscillations, and wherein the measuring tube extends through at least one opening from an inner area of the carrier bridge out of the carrier bridge into the outer area of the carrier bridge, the central curved section running outside of the carrier bridge. A conductor guiding structure is arranged on the carrier bridge extending toward the oscillation sensor and the conductor arrangement fixed on the conductor guiding structure.

Coriolis mass flowmeter

A flowmeter has a guide structure that can have medium flowing through it and which preferably operates using the Coriolis principle. To provide a flowmeter that allows a high as possible measuring accuracy with a space requirement that is as small as possible, at least one sensor element is applied on an outer surface of the guide structure for determining and/or monitoring at least one process variable.

Flowmeter having electrical sensor elements connected in series and applied to an outer surface of a guide structure

A Coriolis mass flowmeter () having at least one curved measuring tube (), at least one oscillation generator (), at least one oscillation sensor (), at least one measuring device electronics () and a housing (). To provide the housing () with increased pressure resistance, in particular against external positive pressure, the housing () has a first housing shell and a second housing shell, the first housing shell and the second housing shell completely surrounding the measuring tube () so as to form at least a first pressure-resistant hollow space around the measuring tube (), and the first housing shell and the second housing shell forming a bridge () between the inlet () and the outlet () of the measuring tube ().

A method for operating a density measuring device having a measuring tube filled with the medium for determining the density of the medium, in which the measuring tube is incited to vibrate, the frequency of the vibration determined and the density of the medium being calculated from the determined frequency and other parameters which determine the physical-geometrical properties of the measuring tube. In particular, at least one mechanical stress of the measuring tube is determined, and with the obtained mechanical stress value, the influence of the mechanical stress of the measuring tube and/or the influence of the pressure in the medium on the determined density of the medium are or is&#x2014;at least partially&#x2014;taken into consideration or compensated.

Method for operating a density measuring device and device for density measurement

A Coriolis mass flowmeter () with at least one sensor arrangement () and at least one housing (), in which the sensor arrangement () includes at least one measuring tube (), at least one oscillation generator () and at least one oscillation sensor (), and the measuring tube () being excited by the oscillation generator () in at least one operating frequency. To optimize production costs and weight relative to the size of the measuring device is implemented by at least one reinforcement element () being arranged in and joined to the housing () in such a manner that the implemented eigenfrequencies of the housing () are shifted away from the operating frequency of the measuring tube ().

Coriolis mass flowmeter having a reinforcement element for shifting implemented eigenfrequencies of the housing away from the operating frequency

A mass flowmeter is provided which operates on the Coriolis principle, having (1) at least four measurement tubes which can oscillate and through which a medium can flow, (2) at least one oscillation generator for excitation of the oscillations of the measurement tube, and (3) at least one oscillation sensor for detection of the excited oscillations of the measurement tubes. The measurement tubes are preferably arranged closely in parallel such that the flow cross section covered by the measurement tubes covers as small an area as possible. The use of four or more compactly arranged measurement tubes advantageously allows for the measurement of a high mass flow rate with measurement tubes having a relatively small cross section and length, resulting in a mass flowmeter having compact length and width dimensions, and which requires only a relatively low energy oscillation generator for excitation of the oscillations of the measurement tubes.

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Hartwell, United Kingdom

Christopher Rolph