A mass flow measuring sensor includes: an oscillatable measuring tube bent in a tube plane; an oscillation exciter for exciting bending oscillations in a bending oscillation use-mode; two oscillation sensors for registering oscillations; a support system; and a measuring sensor housing; wherein the support system has support system oscillation modes, including elastic deformations of the support plate; wherein the support plate is cut to form a number of spirally shaped spring securements, via which the support plate is secured to the measuring sensor housing with oscillation degrees of freedom, whose eigenfrequencies are lower than a use-mode eigenfrequency of the bending oscillation use-mode, wherein the use-mode eigenfrequency is lower than the eigenfrequencies of the support system oscillation modes, wherein a calibration factor describes a proportionality between a mass flow through the measuring tube and a phase difference between oscillations of the measuring tube oscillating in the bending oscillation use-mode.

The invention relates to a measuring system comprising a measuring and operation electronic unit (ME) and a transducer device electrically coupled thereto. The transducer device (MW) has at least one tube, through which fluid flows during operation and which is caused to vibrate meanwhile, a vibration exciter (41), two vibration sensors (51, 52), on the inlet and outlet sides, respectively, for generating vibration signals (s1, s2), and two temperature sensors (71, 72), on the inlet and outlet sides, respectively, for generating temperature measurement signals (81, 82), said temperature sensors being coupled to a wall of the tube in a thermally conductive manner. The measuring and operation electronic unit (ME) is electrically connected to each of the vibration sensors (51, 52) and to each of the temperature sensors (71, 72) and also to the at least one vibration exciter (41). The measuring and operation electronic unit (ME) is designed to feed electrical power into the at least one vibration exciter (41) in order to effect mechanical vibrations of the tube (11) by means an electrical excitation signal (e1). Furthermore, the measuring and operation electronic unit (ME) is designed to generate a mass flow sequence (X.sub.m), namely a series of temporally successive mass flow measurement values (x.sub.m,i) representing the instantaneous mass flow rate (m) of the fluid, by means of each of the vibration signals (s1, s2) and each of the temperature measurement signals (1, 2) in such a way that, at least for a reference mass flow rate (m.sub.ref), namely a specified mass flow rate of a reference fluid flowing through the transducer device, the mass flow measurement values (x.sub.m,i.fwdarw.x.sub.m,ref) are independent of the temperature difference ().

A mass flow sensor includes: a vibratory measurement tube bent in a tube plane; a vibration exciter for exciting bending vibrations in a bending vibration use-mode; two vibration sensors for sensing vibrations; a support system having a support plate, bearing bodies on the inlet and sides; and a sensor housing, wherein: the support system has support system vibration modes which include elastic deformations of the support plate; the measurement tube is connected fixedly to the support plate by the bearing body on the inlet side and by the bearing body on the outlet side; and the support plate has a number of spring-loaded bearings exposed through cut-outs in the support plate by which the support plate is mounted on the sensor housing with degrees of vibrational freedom, the natural frequencies of which are lower than a use-mode natural frequency of the bending vibration use-mode.

A method for creating an asymmetric flowmeter manifold (202, 202) is provided. The method comprises the steps of defining at least one flowmeter (5) application parameter. The method also comprises determining an area for at least a first flow path (402) and a second flow path (402), and forming the asymmetric manifold with the determined flow path areas.

A Coriolis flow meter for measuring one or more properties of a fluid is described herein which involves a modular configuration, and includes a fluid flow sub-system and a mechanical oscillator sub-system, both functionally separate, and are coupled in a closed loop arrangement, such that the flow conduit is not directly vibrated, and instead receives induced oscillations from the mechanical oscillator sub-system. The Coriolis flow meter is useful for high purity applications, as well as for the bioprocessing applications. Bioprocessing systems incorporating the Coriolis flow meter are also described herein. Method for measuring one or more properties of a fluid using the disclosed Coriolis flow meter are also described herein.

A fluid measurement system (3) is provided having a Coriolis flowmeter (5) with a meter electronics (20) comprising a processing system (303) and a storage system (304). The Coriolis flowmeter (5) has a sensor assembly (10) comprising conduits (103A, 103B), wherein the sensor assembly (10) is in communication with meter electronics (20). The Coriolis flowmeter (5) has a plurality of pickoffs (105, 105) affixed to the conduits (103 A, 103B), that are in communication with the meter electronics (20). The Coriolis flowmeter (5) has a driver (104) affixed to the conduits (103A, 103B) that is in communication with the meter electronics (20). A gyroscopic sensor is in communication with the meter electronics (20). At least one actuator (406X, 406 Y, 406Z, 412) is coupled to the Coriolis flowmeter (5). The meter electronics (20) is configured to measure a fluid flow of a process fluid under acceleration through the sensor assembly (10).

A system includes a tubular having an interior surface, a longitudinal axis, a flowbore, and a main portion having a first inner diameter. A vibration inducing feature is disposed along the interior surface of the tubular and is immovable with respect to the tubular, and has a second inner diameter within the tubular that is different than the first inner diameter. The feature has a beveled first end surface and a beveled second end surface, the beveled first and second end surfaces longitudinally displaced from each other. The feature is configured to increase turbulence within the flowbore and configured to dissuade a capture of objects passing therethrough. A sensing system includes a sensor arranged to detect vibration within flow passing the vibration inducing feature, and is configured to output a command signal in response to sensed data reaching a threshold value or indicative of a predetermined pattern.

A method for determining the gas portion in the medium flowing through a Coriolis mass flowmeter, wherein the Coriolis mass flowmeter has at least one measuring tube, at least one oscillation generator, at least two oscillation sensors and at least one control and evaluation unit, wherein the method is characterized in that the density value .sub.100 of the gas-free medium is determined in a .sub.100 step, that the density value .sub.mess of the medium flowing through the measuring tube is measured in a .sub.mess step, that a quantity GVQ for the gas portion of the medium flowing through the measuring tube is calculated in a GVQ step with the density value .sub.100 and the density value .sub.mess, and that the quantity GVQ is output for the gas portion of the medium flowing through the measuring tube.

A system that includes a flow tube configured to provide a flow path through the flow tube. The system also includes a plurality of actuators distributed radially about the flow tube, wherein a first actuator of the plurality of actuators is configured to drive a first oscillation in a first plane and a second actuator of the plurality of actuators is configured to drive a second oscillation in a second plane. Further, the system includes a plurality of sensor sets disposed on the flow tube, wherein each sensor set comprises two or more sensors configured to sense the first oscillation, the second oscillation, or both.

A Coriolis mass flow measuring device and/or density measuring device includes two bent measuring tubes, which extend mirror symmetrically to a first mirror plane between the measuring tubes, an actuator arrangement and at least one sensor arrangement. At the inlet end and at the outlet end, a collector, with which the measuring tubes are joined, wherein the collectors each fulfill the functionality of a node plate. A support body, which connects the collectors rigidly with one another; and inlet end and outlet end, in each case, at least one plate-shaped coupler, which connect the measuring tubes pairwise with one another, in order to form an oscillator. The couplers have tube openings for measuring tubes, wherein the measuring tubes are connected at least sectionally with the couplers, wherein inlet end and outlet end, in each case, at least one coupler has, between the measuring tubes, a tuning opening for influencing the oscillation characteristics of the oscillator.