Abstract: Methods and apparatus are disclosed utilizing a low-order parametric model for decoupling in conjunction with an optimization procedure to improve the ability to determine the density of the liquid phase of a bubbly mixtures within Coriolis meters by characterizing the effect of decoupling in the presence of bubble coalescence.

Abstract: The present disclosure relates to a measuring transducer of a measurement device for registering a mass flow or a density of a medium The measuring transducer includes a measuring tube, at least one exciter adapted to excite the measuring tube to execute oscillations, and two sensors adapted to register deflection of oscillations of the measuring tube. The exciter and the sensors each have a coil device including a circuit board with a first coefficient of thermal expansion. The coil device of the sensors or exciter are/is secured using a holder apparatus adapted to clamp the circuit board, wherein the circuit board is mechanically contacted by the holder apparatus using at least one holder element, wherein the holder element has a second coefficient of thermal expansion, wherein the first coefficient of thermal expansion and the second coefficient of thermal expansion differ from one another by less than 3*10?6/Kelvin.

Abstract: A mixing system is configured to mix and discharge a paste. The mixing system includes a base-medium subsystem that provides a base fluid-medium. The mixing system further includes an additive-medium subsystem that provides one or more additive fluid-mediums. The mixing system further includes a density-reducing medium subsystem that provides a density-reducing medium.

Abstract: A measuring system comprises a measuring transducer of vibration-type having a tube arrangement, an exciter arrangement, a sensor arrangement, and a measuring system electronics. The measuring system electronics is adapted in a first operating mode to supply current to the oscillation exciters whereby the tube arrangement executes wanted oscillations with an oscillation frequency predetermined by the driver signals and to receive and to evaluate oscillation measurement signals representing oscillatory movements of the wanted oscillations.

Abstract: A method for verifying accurate operation for a flow meter (5) is provided. The method entails receiving a vibrational response from the flow meter (5), wherein the vibrational response comprises a response to a vibration of the flow meter (5) at a substantially resonant frequency. At least one gain decay variable is measured. It is then determined whether the gain decay variable is outside a predetermined range. A filter used in a stiffness calculation is adjusted if the gain decay variable is outside the predetermined range. The ability to detect and/or quantify any changes to the stiffness of the meter assembly in order to maintain a high level of accuracy is an improvement in the field of flow meters.

Abstract: A variable mass balance bar (120-320, 520-820) is provided. The variable mass balance bar (120-320, 520-820) comprises a balance body (122-322b, 522-822) containing a balance fluid (124-324b, 524-824), wherein a mass of the balance fluid (124-324b, 524-824) is selected to balance a measuring conduit (110-310, 510-810) containing a process material.

Abstract: The invention relates to a Coriolis measuring sensor for detecting a mass flow rate or a density of a medium flowing through a measurement tube of the Coriolis measuring instrument. The measurement tube has an inlet and an outlet designed to convey the medium between the inlet and the outlet; an exciter; and two sensors; the measuring sensor comprising a supporting element having a chamber designed to house the measurement tube at least in portions. The magnet device comprises a magnetically conductive holder for magnets and a first pair of magnets arranged on the holder on a first face of the coil device, with the magnets designed to cause a magnetic field perpendicularly to a cross-sectional plane of the coil, and the magnetic field of a first magnet of the pair is oriented so as to be opposite to the magnetic field of a second magnet of the pair.

Abstract: A Coriolis mass flow meter comprises a vibration element, an exciter assembly, a sensor assembly, and an electronic transformer circuit electrically coupled to the exciter assembly and the sensor assembly. The vibration element is contacted by the flowing fluid. The exciter assembly is designed to convert electric power into mechanical power to produce mechanical vibrations of the vibration element. The transformer circuit generates an electric driver signal and feeds electric power to the exciter assembly. The vibration element mechanically vibrates with a vibration frequency specified by the electric driver signal. The sensor assembly has two electrodynamic vibration sensors designed to convert vibrational movements of the vibration element at a first or at a second measurement point into electric vibration measurement signals having an AC voltage component with a frequency and with an amplitude based on the frequency and on a magnetic flux flowing through the respective vibration sensor.

Abstract: A process control tool for processing wide data from automated manufacturing operations. The tool including a feature selector, an analysis server, and a visualization engine. The feature selector receives process input data from at least one manufacturing process application, wherein the process input data includes a plurality of observations and associated variables, converts the received process input data to a stacked format having one row for each variable in each observation, converts identified categorical variables into numerical variables and identified time-series data into fixed numbers of intervals, computes statistics that measure the strengths of relationships between predictor values and an outcome variable, orders, filters, and pivots the predictor values. The analysis server performs at least one operation to identify interactions between predictor values, e.g. using maximum Likelihood computations or predefined searches, in the filtered predictor values.

Abstract: A densitometer in the present disclosure comprises a measurement module that is calibrated to estimate sample fluid density with high accuracy and minimized sensitivity to temperature of tube and clamp components in the densitometer. The densitometer measures sample fluid density by vibrating the sample fluid and measuring the resonant frequency of the sample fluid, then estimating the sample fluid density based on this resonant frequency. The measurement module is calibrated specific to dissimilar tube and clamp materials. The tube and the clamp of the densitometer have materials are chosen to be cost-effective based on the specifications of the densitometer system and to have coefficients of thermal expansion (CTEs) which reduce temperature dependence of the resonant frequency of the sample fluid inside of the densitometer.

Abstract: The present disclosure relates to a density meter for slurry which is transported through a pipe, the density meter may include a frame; a pipe part; flexible pipe couplings arranged between the frame and either end of the pipe part for coupling the pipe part to the frame and to a feed pipe and a discharge pipe; a first accelerometer arranged on the pipe part for measuring the accelerations of the pipe part; an actuator arranged between the pipe part and the frame for imparting force on the pipe; a controller for controlling the actuator; and a computing means having a mathematical model to ultimately calculate the density of the slurry in the pipe part.

Abstract: A densitometer in the present disclosure comprises a piston attached to an end of a tube of the densitometer to reduce pressure dependence of density estimates of a sample fluid. The densitometer measures sample fluid density by vibrating the tube containing sample fluid and measuring the resonant frequency of the tube, then estimating the sample fluid density based on this resonant frequency. The piston is designed with a predetermined diameter that converts pressure inside the tube to tension in the tube. This tension produces an opposite effect on the resonant frequency of the tube to that caused by the fluid pressure itself and thereby reduces pressure dependence of the sample fluid density estimates.

Abstract: A vibratory flowmeter (5) for meter verification is provided, including meter electronics (20) coupled to the first and second pickoff sensors (170L, 170R) and coupled to a driver (180), with the meter electronics (20) configured to: vibrate the flowmeter assembly (10) in a single mode using the driver (180), determine a single mode current (230) of the driver (180) and determine first and second response voltages (231) generated by the first and second pickoff sensors (170L, 170R), respectively, compute frequency response functions for the determined first and second response voltages (231) from the determined single mode current (230), fit the generated frequency response functions to a pole-residue model, and verify proper operation of the vibratory flowmeter (5) using the meter stiffness value (216), residual flexibility (218), and the meter mass (240) in embodiments.

Abstract: A Coriolis mass flowmeter having at least one measuring tube with at least one oscillation generator and at least two oscillation sensors and having at least two node elements. The at least one oscillation generator excites the measuring tube to oscillation during operation. The at least two node elements define the oscillation range. At least one node element has at least one stiffening element. An effective separation of undesired interference oscillations of the measuring tube is achieved by the at least one stiffening element increasing the stiffness of the measuring tube with respect to oscillations orthogonal to the excitation mode and to the Coriolis mode so that, during operation, the oscillation frequency of the oscillation orthogonal to the excitation mode and to the Coriolis mode is greater than the oscillation frequency of the excitation mode, preferably greater than that of the Coriolis mode.

Abstract: A densitometer in the present disclosure comprises tension measuring devices that send tension measurements to a measurement module enabling the measurement module to estimate fluid density with increased accuracy. The densitometer measures sample fluid density by vibrating the sample fluid and measuring the resonant frequency of the sample fluid, then estimating the sample fluid density based on this resonant frequency. A set of tension measuring devices affixed to a tube of the densitometer measure external forces on the tube due to O-ring seals and other operational conditions. The sample fluid density estimate uses these tension measurements to take into account O-ring friction and other external forces applied to the densitometer to improve the accuracy of the calculated density.

Abstract: Provided is a Coriolis flow sensor assembly that includes a flow tube configured to provide a flow path through the flow tube. Further, the Coriolis flow sensor assembly includes a mechanical drive assembly configured to drive an oscillation of the flow tube while fluid is flowing via an oscillation surface. The Coriolis flow sensor assembly includes an interface fixedly coupled to the oscillation surface of the mechanical drive assembly and configured to receive the flow tube.

Abstract: A method for operating a flowmeter is provided. The method includes the steps of measuring a fluid flow in the flowmeter, determining at least one fluid characteristic, determining a preferred algorithm of a plurality of algorithms based upon the fluid flow and the at least one fluid characteristic, and applying the preferred algorithm to an operating routine.

Abstract: A vibratory measuring device for determining a mass flow rate or a density of a medium includes: a vibratory measuring tube which is curved when in a rest position; a support body; a first bearing body; a second bearing body; two exciter units and two sensor units; and a circuit. The bearing bodies are connected to the support body such that flexural vibration modes of the measuring tube have vibration nodes on the bearing bodies, wherein the exciter units are configured to excite flexural vibrations of the measuring tube, wherein the sensor units are each configured to detect flexural vibrations of the measuring tube both in and perpendicular to the plane and to output vibration-dependent sensor signals, wherein the circuit is configured to output excitation signals to the excitation units for the selective excitation of flexural vibration modes and to receive the sensor signals of the sensor units.

Abstract: Vibratory meters (5), and methods for their use measuring a fluid are provided. Each vibratory meter includes a multichannel flow tube (300) comprising two or more fluid channels (302), a pickoff (170), a driver (180), and meter electronics (20) configured to apply a drive signal to the driver at a drive frequency ?, and measure a deflection of the multichannel flow tube with the pickoff. At least one fluid channel has an effective diameter that is related to the length of the flow tube.

Abstract: A method of determining a zero offset of a vibratory meter at a process condition is provided. The method includes measuring a flow rate of a material in the vibratory meter, determining if the measured flow rate is less than a low flow threshold, measuring one or more operational parameters of the vibratory meter, determining if the one or more measured operational parameters of the vibratory meter are within a corresponding range, and if the measured flow rate is less than the low flow threshold and if the one or more measured operational parameters of the vibratory meter are within the corresponding range, then determining a zero offset of the vibratory meter based on the measured flow rate.

Abstract: A memory using mixed valence conductive oxides is disclosed. The memory includes a mixed valence conductive oxide that is less conductive in its oxygen deficient state and a mixed electronic ionic conductor that is an electrolyte to oxygen and promotes an electric filed to cause oxygen ionic motion.

Abstract: Vibratory meters (5), and methods for their use measuring a fluid are provided. Each vibratory meter includes a multichannel flow tube (300) comprising two or more fluid channels (302), a pickoff (170), a driver (180), and meter electronics (20) configured to apply a drive signal to the driver at a drive frequency ?, and measure a deflection of the multichannel flow tube with the pickoff. In examples, at least one fluid channel has an effective diameter that is related to kinematic viscosity, inverse Stokes number, and drive frequency. In further examples, the driver may apply a drive signal to the driver having a drive frequency proportional to the kinematic viscosity, inverse Stokes number, and effective diameter.

Abstract: A vibratory flowmeter (5) for meter verification is provided, including meter electronics (20) coupled to the first and second pickoff sensors (170L, 170R) and coupled to a driver (180), with the meter electronics (20) configured to: vibrate the flowmeter assembly (10) in a single mode using the driver (180), determine a single mode current (230) of the driver (180) and determine first and second response voltages (231) generated by the first and second pickoff sensors (170L, 170R), respectively, compute frequency response functions for the determined first and second response voltages (231) from the determined single mode current (230), fit the generated frequency response functions to a pole-residue model, and verify proper operation of the vibratory flowmeter (5) using the meter stiffness value (216), residual flexibility (218), and the meter mass (240) in embodiments.

Abstract: A method in a separation system including parallel fluid paths each having a separation module, includes providing a sensor of the same type in at least each of the parallel fluid paths except one: measuring a characteristic fluid property with at least one of the sensors in the parallel fluid paths; possibly measuring the same characteristic fluid property with a system sensor positioned in the outlet of the separation system; and comparing measured characteristic fluid properties to evaluate and/or qualify the performance of the separation system.

Abstract: The invention relates to a method for ascertaining a physical parameter of a gas using a measuring transducer having a measuring tube for conveying the gas, wherein the measuring tube is excitable to execute bending oscillations of different modes and eigenfrequencies, the method includes: ascertaining the eigenfrequency of the f1-mode and f3-mode; ascertaining preliminary density values for the gas based on the eigenfrequencies of the f1-mode and f3-mode; ascertaining a value for the velocity of sound of the gas, and/or, dependent on the velocity of sound and the eigenfrequency of a mode, at least one correcting term and/or density error for the preliminary density value; and/or a correcting term for a preliminary mass flow value for determining a corrected mass flow measured value based on the first preliminary density value, the second preliminary density value, the eigenfrequencies of the f1-mode and f3-mode.

Abstract: An electromagnetic flow meter comprises a detector having a measurement tube, a magnetic excitation coil, and a pair of detecting electrodes; a magnetic excitation circuit; a flow rate calculation circuit that calculates the flow rate of a fluid flowing through the measurement tube; and an error detection circuit comprising a differential noise measurement circuit configured to measure a level of a magnetic flux differential noise based on an electromotive force generated between the pair of detecting electrodes disposed in the measurement tube and an index calculation circuit configured to calculate an index indicating an error in the flow rate calculated by the flow rate calculation circuit based on the level of the magnetic flux differential noise measured by the differential noise measurement circuit.

Abstract: A method for operating a Coriolis mass flowmeter having at least one measuring tube, at least one oscillation generator, at least two oscillation sensors, and at least one control and evaluation unit, the oscillation generator and the oscillation sensors being arranged on the measuring tube, wherein the measuring tube has a medium flowing through it, wherein the oscillation generator puts the measuring tube into a harmonic oscillation with the excitation frequency f0 and the excitation amplitude A0, wherein the first and the second oscillation sensors detect the oscillation of the measuring tube and wherein the first oscillation sensor forwards the oscillation to the control and evaluation unit as first measuring signal and wherein the second oscillation sensor forwards the oscillation to the control and evaluation unit as second measuring signal, and wherein at least one comparison measurement signal is determined from the first measuring signal and/or the second measuring signal.

Abstract: The density measuring device serves for measuring density, ?, of a flowable medium and comprises a measuring device electronics (ME) as well as a measuring transducer (MT) electrically connected therewith. The measuring transducer includes a measuring tube (10), an oscillation exciter (41) for exciting and maintaining oscillations and an oscillation sensor (51) for registering oscillations of the at least one measuring tube. The measuring device electronics is adapted by means of an oscillation measurement signal (s1) as well as an exciter signal (e1) to adjust a drive force effecting wanted oscillations (namely oscillations with a predetermined wanted frequency, fN) of the measuring tube.

Abstract: A fluid sensing device includes an outer body having a fore side, an aft side, and an interior space, the outer body including a fluid inlet disposed at the fore side; an inner body extending at least partially out of the fluid inlet of the outer body along a longitudinal axis; one or more vents disposed aft of the fluid inlet to allow passage of fluid through the fluid sensing device; and at least one load sensor coupled to the inner body to measure a fluid drag force on the inner body, wherein the inner body is configured to induce the Coanda effect in at least a portion of a fluid contacting the inner body at an angle transverse to a longitudinal axis of the inner body.

Abstract: A flowmeter (5) is provided having a sensor assembly (10) connected to meter electronics (20), wherein the sensor assembly (10) comprises at least one driver (104), at least one pickoff (105), and a first D-shaped conduit (400A) configured to receive a process fluid therein, as well as a second D-shaped conduit (400B) configured to receive a process fluid therein.

Abstract: A method for operating a system configured to consume a fluid, such as engine fuel, having at least two flowmeters is provided. The method includes the step of recirculating a fluid in a closed loop having a supply-side flowmeter and return-side flowmeter, such that substantially no fluid is consumed. Fluid flow is measured in the supply-side flowmeter and the return-side flowmeter. Fluid flow measurements are compared between the supply-side flowmeter and return-side flowmeter, and a first differential zero value based on the difference in the fluid flow measurements between the supply-side flowmeter and return-side flowmeter is determined. A first temperature sensor signal value is received and is associated with the first differential zero value. The first differential zero value associated with the first temperature sensor signal value is stored in a meter electronics.

Abstract: Provided is a Coriolis flow sensor assembly that includes a fluid flow assembly, including a flow tube, wherein the fluid flow assembly is configured to provide a flow path through the flow tube. The flow tube has at least one region of increased stiffness, which may be a result of a structural support component coupled to the flow tube. In another embodiment, the increased stiffness is caused by integral properties of the flow tube.

Abstract: A method for reducing flowmeter braze joint stress is provided. The method comprises the step of bending a flow tube (20) to create at least one thermal expansion bend (300, 302) thereon. The method comprises the step of aligning a flow tube (20) with at least one anchor block (30a, 30b). Additionally, the flow tube (20) is brazed to the at least one anchor block (30a, 30b) in another step, after which the flow tube (20) and the at least one anchor block (30a, 30b) are allowed to cool and contract a predetermined degree after brazing. The method additionally comprises the step of attaching the at least one anchor block (30a, 30b) to a support block (100) after the flow tube (20) has been attached to the at least one anchor block (30a, 30b) and attaching a manifold (90, 92) to each end of the flow tube (20).

Abstract: Provided are perovskite nanocrystalline particle and an optoelectronic device using the same. The perovskite nanocrystalline particle may include a perovskite nanocrystalline structure while being dispersible in an organic solvent. Accordingly, the perovskite nanocrystalline particle in accordance with the present invention has therein a perovskite nanocrystal having a crystalline structure in which FCC and BCC are combined; can form a lamellar structure in which an organic (or A site) plane and an inorganic plane are alternately stacked; and can show high color purity since excitons are confined to the inorganic plane.

Abstract: A Coriolis flow meter for a drilling system measures flow from a wellbore and/or from at least one pump into the wellbore. The meter can be disposed upstream of at least one choke used for controlling backpressure, and/or the meter can be disposed between at least one pump and the wellbore. The meter has at least one flow tube adapted to vibrate and conducts the flow at a first pressure level from an inlet side to an outlet side. A vessel encloses the at least one flow tube at least between the inlet and outlet sides and holds a second pressure level therein about the at least one flow tube. The second pressure level can be equal to or nearly equal to the first pressure level to reduce or nearly eliminate a pressure differential across the at least one flow tube. For example, the second pressure level can be elevated above environmental relative to the first pressure level to reduce a pressure differential across the at least one flow tube.

Abstract: A vibrating sensor assembly (200) is provided. The vibrating sensor assembly (200) includes a one-piece conduit mount (205). The one-piece conduit mount (205) includes an inlet port (206), an outlet port (208), and a conduit support base (210) extending from the inlet port (206) to the outlet port (208). The vibrating sensor assembly (200) further includes a single fluid conduit (203) with two or more loops (204A, 204B) separated by a crossover section (213), which is coupled to the one-piece conduit mount (205).

Abstract: The measuring transducer comprises four measuring tubes (181, 182, 183, 184) as well as two oscillation exciters and (51, 52). The oscillation exciter (51) includes a coil (511) secured to the measuring tube (181) as well as a permanent magnet (512) secured to the measuring tube (182) and movable relative to the coil (511) and the oscillation exciter (52) includes a coil (521) secured to the measuring tube (183) as well as a permanent magnet (522) secured to the measuring tube (184) and movable relative to the coil (521). In the case of the measuring transducer of the invention, the coils (511, 521) are connected electrically in parallel with one another.

Abstract: A headset includes a detector providing an output indicating a donned or doffed condition and a processor for executing a user interface control application. The user interface control application enables or disables a user interface responsive to detection of the donned or doffed condition.

Abstract: A resonance circuit is configured to receive a pulse density signal obtained by ??-modulating an analog displacement signal by a ?? modulator and a multi-bit signal obtained from the pulse density signal and to generate an excitation signal based on the pulse density signal and the multi-bit signal. The resonance circuit includes an amplification factor controller configured to set an amplification factor depending on a vibration signal obtained from the multi-bit signal, a multiplier configured to amplify a level of the pulse density signal by the amplification factor, and a circuit group configured to generate the excitation signal based on a pulse density signal obtained by further ??-modulating an output of the multiplier. The amplification factor controller is configured to set the amplification factor using a proportional control and an integral control based a difference between an amplitude signal obtained from the vibration signal and a target amplitude value.

Abstract: Provided is a Coriolis flowmeter capable of achieving suppression of a pressure loss of a manifold and the like. A channel (15) of a manifold (8) includes a pipe-side opening portion (16), tube-side opening portions (17), and a channel branching portion (18) as shaping portions therefor, and the channel sectional area in a range of from the channel branching portion (18) toward the tube-side opening portions (17) is linearly decreased. A branching wall tip end (20) of a branching wall (19) extending from a position of the channel branching portion (18) to the other end of a manifold body (12) is arranged at the channel branching portion (18). The sectional shape of the channel (15) is a circular shape at a position of the pipe-side opening portion (16), and is changed to D-shapes at the position of the channel branching portion (18) by the branching wall tip end (20).

Abstract: 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.

Abstract: The measuring system comprises: a vibration element for guiding flowing medium and having a lumen; and a vibration element, which is adapted to be contacted, at least at times, by a part of the medium. Additionally, the measuring system includes at least two oscillation exciters for exciting resonant oscillations of the respective vibration elements, two mutually spaced oscillation sensors for registering vibrations of the vibration element, each of which generates an oscillatory signal dependent on vibrations of the vibration element, as well as at least one oscillation sensor for registering vibrations of the vibration element and generating, dependent on vibrations of the vibration element, an oscillatory signal, which has a signal frequency corresponding to a resonant frequency, of the vibration element.

Abstract: A magnet assembly (200) is provided that comprises a magnet keeper (204) configured to hold at least one magnet (202). The bracket (208) is configured to receive the magnet keeper (204) and also configured to be attachable to a flowmeter (5) sensor assembly (10). A first surface (216) is formed on the magnet keeper (204), and a second surface (218) is formed on the bracket (208), wherein the first and second surfaces (216, 218) are configured to mate so to provide a radial alignment of the magnet keeper (204) that is within a predefined radial tolerance range.

Abstract: A single straight tube flowmeter has a body; a tube through which a flow of fluid passes; two systems of excitation of oscillations in two planes which are perpendicular to one another and including adaptor units; a block of processing of information data including a phase shift of the adaptors located in one plane, frequency of oscillations of the tube, and temperatures of the tube and the body and outputting results of measurement of a mass flow rate and density of the fluid; and components for imparting to the tube a rotary motion relative to its neutral immovable position to increase accuracy of measurements by suppressing vibration disturbances.

Abstract: A multi-phase process fluid is passed through a vibratable flowtube. Motion is induced in the vibratable flowtube. A first apparent property of the multi-phase process fluid based on the motion of the vibratable flowtube is determined, and an apparent intermediate value associated with the multi-phase process fluid based on the first apparent property is determined. A corrected intermediate value is determined based on a mapping between the intermediate value and the corrected intermediate value. A phase-specific property of a phase of the multi-phase process fluid is determined based on the corrected intermediate value.

Abstract: A sensor assembly (200) for a vibrating meter (50) is provided. The sensor assembly (200) includes one or more conduits (103A, 103B). The sensor assembly (200) also includes one or more sensor components including one or more of a driver (104), a first pick-off sensor (105), and a second pick-off sensor (105?) coupled to the one or more conduits (103A, 103B). A flexible circuit (201) can be provided that includes a body (202) and one or more sensor component flexures (210-212?). The one or more sensor component flexures can extend from the body (202) and be coupled to a sensor component (104, 105, 105?) of the one or more sensor components.

Abstract: The present invention relates to a measuring transducer of the vibration-type for a fluid flowing in a flexible hose. The measuring transducer includes, a hose carrier unit, which has at least sectionally a loop-shaped outer contour, around which a flexible hose can be led. Furthermore, the measuring transducer includes a clamping unit, by which a flexible hose led in use around the loop-shaped outer contour is tightenable against the loop-shaped outer contour, at least one exciter coupled to the hose carrier unit, by which the hose carrier unit is excitable to execute mechanical oscillations, which are accompanied by alternating elastic deformation of the hose carrier unit, and at least one oscillation sensor, by which mechanical oscillations of the hose carrier unit and/or a flexible hose installed in use in the measuring transducer are registerable.

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: An inferential Coriolis mass flowmeter characterized by: a power supply (10); a pressure sensor (11) connected to the power supply (10) and a tube of fluid; a current to voltage converter (13) connected to the pressure sensor (11) for converting a current signal from the pressure sensor (11) to a voltage signal; a controller unit (20) including an analogue to digital converter (21) connected to the current to voltage converter (13) for converting analogue signal from the current to voltage converter (13) to a digital signal, and a microprocessor (22) for processing the digital signal from the analogue to digital converter (21) to determine the mass flowrate of the fluid, wherein the microprocessor (22) is embedded with an algorithm to determine the mass flowrate of a fluid according to equation: y=0.002x4?0.0218x3?0.0865x2?0.8769x?0.0846; a display panel (14) connected to the microprocessor (22); and a transmission circuit (15) connected to the microprocessor (22).

Abstract: An apparatus and method for estimating a parameter of a fluid flowing in a tubular is disclosed. A source of a primary magnetic field is coupled to the tubular and is configured to induce the primary magnetic field in the fluid to align nuclei of the fluid in the tubular along the primary magnetic field. A transmitter transmits an excitation signal into the fluid. A receiver detects a signal from the aligned nuclei responsive to the excitation signal. A processor estimates the parameter of the fluid from the detected signal. The source of the primary magnetic field is removable from the tubular. A coil may induce a secondary magnetic field to either enhance the strength of the primary magnetic field in the tubular or substantially cancel the primary magnetic field in the tubular, for example, to reduce particle build-up in the tubular.