| Entries |
| Document | Title | Date |
|---|
| 20080257065 | Single Input, Multiple Output Flow Meter - A single input, multiple output flow meter ( | 10-23-2008 |
| 20090013799 | Apparatus And Method For Augmenting A Coriolis Meter - A correction system provides at least one of a compensated mass flow rate measurement and a compensated density measurement of a coriolis meter. The correction system includes a gas volume fraction (GVF) meter, which may include an array of strained-based or pressure sensors, to measure the speed of sound propagating through the fluid passing through the coriolis meter to calculate at least the GVF of the fluid and/or the reduced natural frequency. The calculated gas volume fraction and/or reduced frequency is provided to a processing unit for determining an improved mass flow rate and/or density for the coriolis meter. The improved density is determined using analytically derived or empirically derived density calibration models (or formulas derived therefore), which is a function of the measured natural frequency and at least one of the determined GVF, reduced frequency and speed of sound, or any combination thereof. | 01-15-2009 |
| 20090038411 | Coriolis Flow Meter With Vibrating Direction Restriction Means - A Coriolis flow meter ( | 02-12-2009 |
| 20090126509 | Mass Flow Meter - There is described a mass flow meter which operates on the Coriolis principle. A measuring tube is mounted in a chamber, which is provided with at least two openings for directing the medium to and from the respective end of the measuring tube. The mounting of the measuring tube is arranged between the two tube ends at an axial distance from them. It is preferably at an oscillation node of the first bending mode. The mounting arranged at an axial distance from the tube ends has the advantage that thermal expansions have virtually no influence on the internal mechanical stress conditions of the measuring tube, and consequently scarcely influence the measurement result. The mass flow meter can be used with particular advantage for gaseous media. | 05-21-2009 |
| 20090145244 | Measuring transducer of vibration-type - A measuring transducer includes: a measuring tube vibrating at least at times and serving for conveying medium to be measured; a counteroscillator, which is affixed to the measuring tube on an inlet-side, to form a first coupling zone, and to the measuring tube on an outlet-side, to form a second coupling zone; an exciter mechanism for driving at least the measuring tube; as well as a sensor arrangement for registering oscillations at least of the measuring tube. During operation, the measuring tube executes, at least at times and/or at least in part, bending oscillations about an imaginary bending oscillation axis, which imaginarily connects the two coupling zones with one another. Additionally, at least a first spring element and a second spring element are included, with each of the at least two spring elements being affixed to the measuring tube and the counteroscillator spaced both from each of the two coupling zones as well as also from the exciter mechanism. | 06-11-2009 |
| 20090165567 | COMPENSATING FOR FREQUENCY CHANGE IN FLOWMETERS - Motion is induced in a conduit that contains a fluid. The motion is induced such that the conduit oscillates in a first mode of vibration and a second mode of vibration. The first mode of vibration has a corresponding first frequency of vibration and the second mode of vibration has a corresponding second frequency of vibration. At least one of the first frequency of vibration or the second frequency of vibration is determined. A phase difference between the motion of the conduit at a first point of the conduit and the motion of the conduit at a second point of the conduit is determined. A quantity based on the phase difference and the determined frequency is determined. The quantity includes a ratio between the first frequency during a zero-flow condition and the second frequency during the zero-flow condition. A property of the fluid is determined based on the quantity. | 07-02-2009 |
| 20090173169 | Measuring transducer of vibration-type - The measuring transducer includes: a measuring tube vibrating, at least at times, and serving for conveying medium to be measured; a counteroscillator, which is affixed to the measuring tube on an inlet-side, to form a first coupling zone, and to the measuring tube on an outlet-side, to form a second coupling zone; at least one oscillation exciter for driving at least the measuring tube; as well as at least one oscillation sensor for registering oscillations at least of the measuring tube. During operation, the measuring tube executes, at least at times and/or at least in part, bending oscillations about an imaginary bending oscillation axis, which imaginarily connects the two coupling zones with one another. The oscillation sensor includes a coil, especially a coil affixed to the counteroscillator, as well as, magnetically coupled with the coil, a permanent magnet, which is placed within a magnet cup composed at least partially of magnetically conductive material and which is held to a cup base, especially a cup base secured to the measuring tube. Additionally, it is provided in the measuring transducer of the invention that a cup wall of the magnet cup, especially an essentially circular-cylindrical and/or tubular, cup wall, especially a cup wall extending essentially in the direction of the counteroscillator, has at least one slit, especially a slit extending at least sectionally in the direction of oscillations of the measuring tube relative to the counteroscillator. | 07-09-2009 |
| 20090235759 | Measuring transducer of vibration-type - The measuring transducer includes at least one measuring tube communicating with a line connected during operation for conveying a medium to be measured, and a support element oscillatably holding the at least one measuring tube. Additionally, it is provided that the support element contains at least two passageways, via which the at least one measuring tube communicates with the line, and that the at least one measuring tube is affixed, especially releasably, at least one end to the support element by means of a screwed-fitting at one of the passageways. Alternatively or in supplementation thereof, it is further provided that the at least one measuring tube is, at least in part, made of cold-strengthened, for instance cold-stretched or autofrettaged, material. As required, the measuring transducer can further include at least two measuring tubes communicating with the line for conveying the medium; each of these two measuring tubes is to be connected to an inlet-side distributor element and an outlet-side distributor element. In such case, at least one of the two distributor elements can be embodied as an integral component of the support element, so that the support element can be kept, at least in the area of this at least one distributor element, free of materially bonded, joined locations, especially free of solder, braze or weld connections. The measuring transducer of the invention is especially provided also for applications in which the medium to be measured acts with a pressure of more than 500 bar, especially over 700 bar, on the measuring tube. | 09-24-2009 |
| 20090241689 | Use of silver-copper-palladium brazing alloys - A compound arrangement comprising a first component of metal being brazed to a second component of metal. The first component has an external cylindrical surface touching an cylindrical internal surface of the second component. The second component clasps the first component tightly, so that the second component exerts compressive stress on said external surface of the first component. | 10-01-2009 |
| 20090272200 | MICROMECHANICAL SENSOR FOR MEASURING THE MASS FLOW RATE IN ACCORDANCE WITH THE CORIOLIS PRINCIPLE - In a micromechanical sensor ( | 11-05-2009 |
| 20090308177 | FLOWMETER - A flowmeter including a system chip with a silicon substrate provided on a carrier, in an opening whereof at least one silicon flow tube is provided for transporting a medium whose flow rate is to be measured, the tube having two ends that issue via a wall of the opening into channels coated with silicon nitride in the silicon substrate, wherein the flow tube forms part of a Coriolis flow sensor and/or a thermal flow sensor, and wherein the channels are preferably in communication through the carrier with connection lines to the external world. | 12-17-2009 |
| 20100037706 | MICROFLUIDIC DEVICE AND METHODS OF OPERATION AND MAKING - A microelectromechanical system (MEMS) device and a method for operating the device to determine at least one property of a fluid. The device includes a base on a substrate and a tube structure extending from the base and spaced apart from a surface of the substrate. The tube structure includes at least one tube portion and more preferably at least a pair of parallel tube portions substantially lying in a plane, at least one continuous internal passage defined at least in part within the parallel tube portions, and an inlet and outlet of the internal passage fluidically connected to the base. A drive element is operable to induce vibrational movement in the tube structure in a plane of the tube structure and induce resonant vibrational movements in the tube portions. A sensing element senses the deflections of the tube portions when the tube structure is vibrated with the drive element. | 02-18-2010 |
| 20100037707 | Measuring transducer of vibration type - A measuring transducer of vibration type for registering, on the basis of the Coriolis principle, at least one measured variable of a medium flowing through a pipeline. The measuring transducer includes: a measuring tube, which is connectable with the pipeline via an inlet and an outlet, wherein the measuring tube includes a first measuring tube arc and a second measuring tube arc; an oscillation exciter for exciting oscillations of the measuring tube arcs; at least one oscillation sensor for registering resulting oscillations of the measuring tube arcs; and a transducer housing surrounding the measuring tube arcs. The measuring tube arcs are elastically coupled to the transducer housing. In this way, a robust and reliable measuring operation is guaranteed, which is little influenced by oscillatory in-couplings. | 02-18-2010 |
| 20100083769 | COMPACT VIBRATORY FLOWMETER FOR MEASURING FLOW CHARACTERISTICS OF A MULTI-PHASE FLOW MATERIAL - A compact vibratory flowmeter ( | 04-08-2010 |
| 20100326204 | METHOD FOR INSTALLING AND OPERATING A MASS FLOWMETER AND MASS FLOWMETER - A method for installing and operating a Coriolis mass flowmeter operating having a measuring tube, wherein the measuring tube is excited to vibrate, a phase shift of the vibration of the measuring tube which is dependent on the mass flow of the measuring tube or a corresponding time difference is determined, the temperature of the measuring tube is determined and the corresponding mass flow is calculated using the determined time difference and the determined temperature by means of a computation rule. Highly accurate measurements are possible in that in the computation rule, at least one known theoretical or empirical material temperature dependence influencing the mass flow is taken into account by determining a device-specific temperature dependence of the mass flowmeter influencing the mass flow through a subsequent calibration process and the known theoretical or empirical material temperature dependence and the device-specific temperature dependence are used in determining the mass flow. | 12-30-2010 |
| 20110016986 | CORIOLIS MODE PROCESSING TECHNIQUES - Flowmeters are described in which a sensor signal received from a sensor that is attached to vibratable flowtube, so as to determine properties of a fluid within the flowtube, contains a drive signal component and a Coriolis mode component. The flowmeters are operable to determine drive parameters of the drive signal component, as well as Coriolis parameters of the Coriolis mode component. By analyzing the sensor signal based on the drive signal parameters, and not on the Coriolis signal parameters, the flowmeters are able to provide stable and accurate determinations of the properties of the fluid. | 01-27-2011 |
| 20110016987 | BRACE BAR WITH A PARTIAL BOND - A partially bonded brace bar assembly is provided according to an embodiment of the invention. A vibrating element adapted to vibrate about a bending axis (W, W′) is provided. The vibrating element has a high stress region ( | 01-27-2011 |
| 20110079091 | Apparatus for determining and/or monitoring a flow parameter - An apparatus for determining and/or monitoring of at least one flow parameter of a medium, wherein the medium flows through a measuring unit, wherein at least one exciter transducer element is provided, which, based on an exciter signal, excites the measuring unit to mechanical oscillations, and wherein at least one receiver transducer element is provided, which receives mechanical oscillations of the measuring unit as a received signal. The measuring unit has at least one guiding unit and one carrying unit, the medium flows through the guiding unit, the guiding unit and the carrying unit are mechanically coupled with one another, the receiver transducer element and the exciter transducer element are mechanically coupled with the carrying unit, and the receiver transducer element and the exciter transducer element are mechanically coupled indirectly via the carrying unit with the guiding unit. | 04-07-2011 |
| 20110088486 | Apparatus for determining and/or monitoring a flow parameter - An apparatus for determining and/or monitoring at least one flow parameter of a medium, wherein the medium flows through at least one measuring tube essentially along an imaginary flow axis, wherein at least one exciter transducer element is provided, which, based on an exciter signal, excites the measuring tube to mechanical oscillations, and wherein at least one receiver transducer element is provided, which receives mechanical oscillations of the measuring tube as a received signal. The invention includes that at least one separating unit is provided, and that the separating unit is embodied and arranged in the measuring tube in such a manner, that at least two sub measuring tubes result in the measuring tube, wherein the medium flows through the at least two sub measuring tubes essentially along the imaginary flow axis. | 04-21-2011 |
| 20110094312 | Measuring transducer of vibration type - A measuring transducer of vibration type, especially a Coriolis mass flow meter, having a housing and a mass flow tube, wherein the mass flow tube is formed into a helix having a first loop and a second loop; wherein the mass flow tube has a securement element which affixes a peripheral point of the first loop relative to a neighboring peripheral point of the second loop; and wherein the mass flow tube has an oscillation exciter on a side lying opposite the securement element along the mass flow tube. The mass flow tube has provided between the oscillation exciter and the securement element at least one add-on part acting as a canceling mass. | 04-28-2011 |
| 20110138930 | CORIOLIS MASS FLOWMETER - A Coriolis mass flowmeter having a measuring tube that can be excited to oscillation and a magnet assembly ( | 06-16-2011 |
| 20110154914 | CORIOLIS MASS FLOWMETER - A Coriolis mass flowmeter having at least one measuring tube assembly ( | 06-30-2011 |
| 20110192234 | COMPENSATING FOR FREQUENCY CHANGE IN FLOWMETERS - Motion is induced in a conduit that contains a fluid. The motion is induced such that the conduit oscillates in a first mode of vibration and a second mode of vibration. The first mode of vibration has a corresponding first frequency of vibration and the second mode of vibration has a corresponding second frequency of vibration. At least one of the first frequency of vibration or the second frequency of vibration is determined. A phase difference between the motion of the conduit at a first point of the conduit and the motion of the conduit at a second point of the conduit is determined. A quantity based on the phase difference and the determined frequency is determined. The quantity includes a ratio between the first frequency during a zero-flow condition and the second frequency during the zero-flow condition. A property of the fluid is determined based on the quantity. | 08-11-2011 |
| 20110214512 | FLUIDIC SYSTEMS AND METHODS OF DETERMINING PROPERTIES OF FLUIDS FLOWING THEREIN - Fluidic systems and methods of determining properties of fluids flowing therein. The fluidic systems and methods make use of a micromachined device that determines at least one property of the fluid within the system. The micromachined device includes a base structure on a substrate and a tube structure extending from the base structure and spaced apart from a surface of the substrate. The tube structure has at least one pair of geometrically parallel tube portions substantially lying in a plane, and at least one continuous internal passage defined at least in part within the parallel tube portions. A drive element induces vibrational movement of the tube structure in the plane of the tube structure and induces resonant vibrational movements in the tube portions in the plane of the tube structure. A sensing element senses deflections of each tube portion in the plane of the tube structure. | 09-08-2011 |
| 20110259121 | CORIOLIS MASS FLOWMETER - A Coriolis mass flowmeter ( | 10-27-2011 |
| 20110277559 | CORIOLIS FLOW METER - A Coriolis flow meter that measures a flow rate of a fluid flowing through a vibrating tube based on a Coriolis force acting on the vibrating tube, the Coriolis flow meter may include a driving unit that applies a driving force to vibrate the vibrating tube, a change ratio obtaining apparatus that obtains a change ratio of a vibration of the vibrating tube, which has been given the driving force, a calculating unit that calculates a spring constant and a damping coefficient of the vibrating tube as parameters independent of each other, based on the change ratio obtained by the change ratio obtaining apparatus and on the driving force, and a diagnosing unit that diagnoses a state of the vibrating tube based on the parameters, which has been calculated by the calculating unit. | 11-17-2011 |
| 20110308329 | CORIOLIS FLOW SENSOR - A Coriolis flow sensor including a loop-shaped Coriolis tube mounted in a housing with two ends lying next to one another, the ends being fixed in a fixation element, while the portion of the tube located between the ends lies free from the housing, which flow sensor includes an excitation element for causing the tube to oscillate about an excitation axis as well as a detection element for detecting displacements of portions of the tube during operation. The tube is connected through the fixation element to a balancing member, the assembly of the balancing member and the tube being resiliently arranged with respect to the housing, while the excitation element are arranged to rotate the tube and the balancing member with counter-phase about the excitation axis | 12-22-2011 |
| 20120073384 | MEASURING SYSTEM HAVING A MEASURING TRANSDUCER OF VIBRATION-TYPE - A measuring system comprises a measuring transducer which includes: a transducer housing with an inlet-side flow divider having exactly four, mutually spaced flow openings and an outlet-side housing end having exactly four, mutually spaced flow openings; four measuring tubes connected to the flow dividers for guiding flowing medium along flow paths connected in parallel; an electromechanical, exciter mechanism for producing and/or maintaining mechanical oscillations of the four measuring tubes; as well as a vibration sensor arrangement reacting to vibrations of the measuring tubes for producing oscillation measurement signals representing vibrations of the measuring tubes. Transmitter electronics includes a driver circuit for the exciter mechanism, and a measuring circuit. The measuring circuit of the measuring system of the invention corrects a change of at least one characteristic variable of the oscillation measurement signals delivered from the measuring transducer. | 03-29-2012 |
| 20120073385 | METHOD AND APPARATUS FOR VIBRATIONALY SEPARATING DRIVER AND PICK-OFFS OF A VIBRATING-TYPE FLOW SENSOR ASSEMBLY - The present invention provides a vibrating sensor assembly ( | 03-29-2012 |
| 20120160035 | CORROSION-RESISTANT COATING FOR A VIBRATORY FLOWMETER AND METHOD FOR FORMING THE COATING - A corrosion-resistant vibratory flowmeter ( | 06-28-2012 |
| 20120255369 | MEASURING TRANSDUCER OF VIBRATION-TYPE AS WELL AS METHOD FOR ITS MANUFACTURE - A measuring transducer comprises a housing, and a tube arrangement formed by means of at least two tubes extending within the housing. At least one tube is embodied as a measuring tube serving for conveying flowing medium and another tube is mechanically connected with the tube by means of a coupling element to form an inlet-side coupling zone and by means of a coupling element. The coupling element is arranged equally far removed from the housing end. One coupling element has, about an imaginary longitudinal axis of the tube arrangement imaginarily connecting a center of mass of the coupling element and a center of mass of the other coupling element, with an angle of intersection equal to that with the other coupling element, a bending stiffness, which deviates from a bending stiffness of the other coupling element about said imaginary longitudinal axis of the tube arrangement. | 10-11-2012 |
| 20120279317 | MEASURING TRANSDUCER OF VIBRATION TYPE AND MEASURING SYSTEM - A measuring transducer comprises a transducer housing, of which an inlet-side housing end is formed by means of an inlet-side flow divider having eight, mutually spaced flow openings and an outlet-side housing end is formed by means of an outlet-side flow divider having eight, mutually spaced flow openings as well as a tube arrangement with eight bent measuring tubes for the conveying flowing medium, which, forming flow paths connected for parallel flow, are connected to the flow dividers, wherein each of the eight measuring tubes in each case opens with an inlet-side measuring tube end into one of the flow openings of the flow divider, and in each case opens with an outlet-side measuring tube end into one of the flow openings of the flow divider. An electro-mechanical exciter mechanism of the measuring transducer serves for producing and/or maintaining mechanical oscillations of the measuring tubes. | 11-08-2012 |
| 20130042700 | CORIOLIS MASS FLOWMETER - A Coriolis mass flowmeter with a measuring tube through which a medium can flow, at least one actuator and at least one sensor, wherein the measuring tube is bent between its input and output ends into a first winding and a second winding, the first winding and the second winding merging into one another at a transitional section of the measuring tube. The first winding and the second winding run in parallel winding planes and wherein the first winding and the second winding can be excited to oscillation by the actuator and the oscillations detected by the sensor. The Coriolis mass flowmeter is comparably insensitive to the coupling of external oscillations in that oscillating sections of the first winding and the second winding are bent into a V shape that opens in a direction toward the transitional section of the measuring tube. | 02-21-2013 |
| 20130042701 | CORIOLIS MASS FLOWMETER - A Coriolis mass flowmeter with at least one measurement tube ( | 02-21-2013 |
| 20130055827 | Method for Operating a Coriolis Mass Flow Rate Meter and Coriolis Mass Flow Rate Meter - A method for operating a Coriolis mass flow rate meter and a Coriolis mass flow rate meter including an evaluation device, a measuring tube having a medium flowing therethrough and which is excited so as to perform oscillations, and at least two spaced oscillation pickups spaced apart in the longitudinal direction of the measuring tube to each generate an oscillation signal, wherein a first indicator variable based on the damping of the oscillations of the measuring tube is initially used to detect deposits in the measuring tube and if, based on the first indicator variable, increased damping is established, a second indicator variable is used, which is based on the manifestation of harmonics in the frequency spectrum of an oscillation signal such that reliable detection of deposits and therefore an indication of the state of meters and pipelines in a process engineering installation are advantageously possible. | 03-07-2013 |
| 20130139612 | CORIOLIS MASS FLOW METER - A Coriolis mass flow meter ( | 06-06-2013 |
| 20130139613 | THERMAL STRESS COMPENSATION IN A CURVED TUBE VIBRATING FLOW METER - A curved tube vibrating flow meter ( | 06-06-2013 |
| 20130160565 | Method for monitoring oscillation characteristics in a coriolis, flow, measuring device - A method for monitoring oscillation characteristics in a Coriolis, flow measuring device and to a correspondingly formed, Coriolis, flow measuring device in the case of which an excited oscillatory system is simulated with a digital model, which has at least one fittable parameter. The simulating includes, in such case, excitating the digital model in the same manner as the oscillatory system, calculating a simulation response variable of the simulated oscillations according to the digital model, and, performed over a plurality of signal modulations, iterative conforming of the at least one, fittable parameter in such a manner that the simulation response variable interatively approaches the response variable. Furthermore, it is ascertained whether a corresponding limit value is exceeded by the at least one, interatively ascertained parameter value for the at least one, fittable parameter or by at least one variable derived from the at least one, iteratively ascertained parameter value. | 06-27-2013 |
| 20130174670 | METHODS OF MANUFACTURING AND TEMPERATURE CALIBRATING A CORIOLIS MASS FLOW RATE SENSOR - A subassembly of a Coriolis flowmeter is fabricated from a single monolithic piece of elastic polymeric material. The subassembly includes two flow-sensitive members and a base integrally connected to the two flow-sensitive members. The two flow-sensitive members include straight sections, and are substantially similar and parallel to each other. Flow passages are drilled along the straight sections of the two flow-sensitive members, and drilled entrances are sealed using the elastic polymeric material. A temperature sensor is fixedly attached to a flow-sensitive member for measuring a temperature of the flow-sensitive member and communicating the temperature to a metering electronics. The metering electronics determines a calibrated flow rate of fluid flowing through the Coriolis flowmeter that accounts for the temperature. | 07-11-2013 |
| 20130199306 | METHOD FOR OPERATING A RESONANCE MEASURING SYSTEM - A method for operating a Coriolis mass flowmeter in which a simple and reliable detection of a multi-phase flow is implemented by determining at least one first measured value for at least one state variable that is dependent on the amplitude in a multi-phase medium, exciting the measuring tube with the oscillation generator to oscillate at a predetermined oscillation frequency and a first amplitude, and to oscillate with the excitation frequency and a second amplitude, detecting the resulting oscillation of the measuring tube and determining at least a second measured value for the state variable that is dependent on the amplitude in a multi-phase medium from the determined resulting oscillation, and using the deviation of at least one of the first measured value from at least a corresponding second value as an indicator for the presence of a multi-phase flow. | 08-08-2013 |
| 20130319134 | CORIOLIS MASS FLOW METER - 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. | 12-05-2013 |
| 20140013860 | CORIOLIS FLOW SENSOR - A Coriolis flow sensor including a loop-shaped Coriolis tube mounted in a housing with two ends lying next to one another, the ends being fixed in a fixation element, while the portion of the tube located between the ends lies free from the housing, which flow sensor includes an excitation element for causing the tube to oscillate about an excitation axis as well as a detection element for detecting displacements of portions of the tube during operation. The tube is connected through the fixation element to a balancing member, the assembly of the balancing member and the tube being resiliently arranged with respect to the housing, while the excitation element are arranged to rotate the tube and the balancing member with counter-phase about the excitation axis | 01-16-2014 |
| 20140083204 | CORIOLIS MASS FLOWMETER - A Coriolis mass flowmeter ( | 03-27-2014 |
| 20140137666 | ELECTRICAL CONFIGURATION FOR A VIBRATING METER - A sensor assembly ( | 05-22-2014 |
| 20140144250 | CORIOLIS MASS FLOW METER WITH MICRO-BEND TUBES - A new type of coriolis mass flow meter is disclosed. In one embodiment, the coriolis mass flow meter comprises two or more flow splitters, each flow splitter being connected to two or more flow tubes; and one or more supporting pipes connecting the flow splitters. The one or more of the flow splitters have a smooth round corner with a 65° turning angle. The distance between the centers of the two or more splitter tubes is about 1.1 to 1.2 times dT, where dT is the inner diameter of each splitter tube. The splitting turning radius RT is about 1 to 2.5 times DN; where DN is inner diameter of the flange portion of the flow splitter. The inner diameter of each splitter tube is about 0.8 to 0.85 times DN/√2. | 05-29-2014 |
| 20140208871 | VIBRATORY FLOWMETER AND METHOD FOR AVERAGE FLOW RATE - A vibratory flowmeter ( | 07-31-2014 |
| 20140251026 | Coriolis Flow Meter - A Coriolis flow meter for measuring a liquid volume fraction of a multiphase flow. The Coriolis meter includes a vibrating measurement conduit through which the multiphase flow, a wet gas flow or the like, is flowed and measured and/or analyzed. Operation of the Coriolis flow meter includes obtaining a measure of the input energy required to vibrate the conduit and a measure of the vibrational energy of the conduit, and determining the liquid volume fraction of the wet gas flow from the input energy and the vibrational energy. The liquid volume fraction may be used to correct other measurements made by the Coriolis flow meter such as density or mass flow rate. | 09-11-2014 |
| 20140326076 | DIRECT-FLOW CORIOLIS MASS FLOWMETER - The direct-flow Coriolis mass flowmeter comprises a tensioned section of string, along which a substance to be measured flows, a device for tensioning the section of string, a device for exciting a transverse circular oscillatory movement in the string, two sensors which are spaced apart along the string and which convert the magnitude of a transverse deflection of the string in two mutually perpendicular directions into electrical signals, wherein these signals are coupled to inputs of a microprocessor device which calculates the flowrate as a function of the difference in phases of the signals from the sensors. | 11-06-2014 |
| 20140366644 | WET GAS MEASUREMENT - A first apparent property of a multi-phase process fluid is determined based on the motion of the vibratable flowtube. One or more apparent intermediate values associated with the multi-phase process fluid are determined based on the first apparent property. A measure of wetness of the multi-phase process fluid is determined based on a mapping between one or more of the apparent intermediate values and the measure of wetness. A second apparent property of the multi-phase process fluid is determined using the differential pressure flowmeter. One or more phase-specific properties of the multi-phase process fluid is determined based on the measure of wetness and the second apparent property. | 12-18-2014 |
| 20140373639 | WET GAS MEASUREMENT - 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. | 12-25-2014 |
| 20150033874 | Coriolis Mass Flow Meter, Vibrating Tube Density Meter and Vibrating Sheet Used Therein - The present invention relates to a Coriolis mass flow meter, a vibrating tube density meter and a vibrating sheet used therein, and more particularly, to a vibrating sheet for use in a Coriolis mass flow meter or a vibrating tube density meter, the vibrating sheet having at least one welded connecting portion that is fixedly welded to the flow tube of the Coriolis mass flow meter or the vibrating tube density meter, the flow tube being excited to vibrate around a revolving axis at the welded junction of the vibrating sheet and the flow tube. The welded connecting portions of the vibrating sheet are only formed in the stress insensitive region of the vibrating sheet, wherein the stress insensitive region is the region of the vibrating sheet which has an angle of not more than 45 degrees with respect to the revolving axis. In addition, the present invention also provides a Coriolis mass flow meter and a vibrating tube density meter using the vibrating sheet. The present invention not only simplifies the process, but also improves the measurement precision and service life of the Coriolis mass flow meter and the vibrating tube density meter. | 02-05-2015 |
| 20150053021 | Method of Manufacturing a Coriolis Mass Flow Rate Sensor from a Polymeric Material - A method of manufacturing a Coriolis mass flowmeter from a polymeric material is described, in which a dynamically responsive manifold is fabricated from the same material as the flow sensor's flow-sensitive elements. The flowmeter is free of mechanical joints and adhesives. The manifold and flow-sensitive elements therefore do not slip or change their location relative one another, nor are they subject to differing degrees of thermal expansion that would otherwise undermine integrity, reliability, and/or accuracy of the boundary condition at the ends of the vibrating flow-sensitive elements. | 02-26-2015 |
| 20150082915 | CORIOLIS FLOW SENSOR FABRICATED WITH LAMINATED FILMS PROCESSES - A coriolis flow sensor is disclosed. The coriolis flow sensors comprises a first substrate layer, a second substrate layer, and a third substrate layer. The first substrate layer comprises a first wall. The second substrate layer comprises a second wall. The third substrate layer is disposed between the first and second substrate layers in a stacked configuration. The third substrate layer defines a flow path. The first and second walls of the respective first and second substrates and the flow path defined by the third substrate layer define a first flow channel configured to receive a fluid therethrough. A first actuator is configured to generate vibrations in the first flow channel. The first flow channel is mechanically moveable. | 03-26-2015 |
| 20150143922 | VIBRATION ISOLATION SYSTEM OF MASS FLOWMETER - A vibration isolation system of mass flowmeter, includes upper horizontal section, vertical section, lower horizontal section, upper arc section between the upper horizontal section and vertical section, and lower arc section between the vertical section and lower horizontal section of U-shaped measuring tube. On the lower arc section there is vibration isolation block. It is characterized by full-length welding between the vibration isolation block's plane of the axis of U-shaped measuring tube and the lower arc section. The U-shaped measuring tube has an inertia center. The straight-line distance between the external welding point in the full weld of the lower arc section between the vibration isolation block mentioned and the measuring tube and the inertia center is equal to the straight-line distance between the internal welding point and the inertia center. | 05-28-2015 |
| 20150323362 | Mass flowmeter - A mass flowmeter includes: a casing ( | 11-12-2015 |
| 20160033314 | Messwandler vom Vibrationstyp sowie damit gebildetes Messsystem - A measuring transducer comprises a measuring tube having an inlet-side tube end and an outlet-side tube end, a tube wall having a predetermined wall thickness and a lumen surrounded by the tube wall and extending between the first and second tube end, a support element, which with a support end is mechanically connected with the tube end and with a support end is mechanically connected with the tube end, as well as, laterally spaced from the measuring tube, a support element, which with a support end is mechanically coupled with the support end and with a support end is mechanically coupled with the support end. The measuring tube is adapted to guide a flowing medium in its lumen and caused to oscillate about a static resting position for producing Coriolis forces. An oscillation exciter as well as at least one oscillation sensor. The measuring transducer has a wanted mode having a resonant frequency, in which the measuring tube can execute wanted oscillations around its static resting position suitable for producing Coriolis forces and having a wanted frequency corresponding to the resonant frequency of the wanted mode. The oscillation exciter is placed externally on the measuring tube and one exciter component is placed on the support element, is, furthermore, adapted to excite the wanted oscillations of the measuring tube, and the oscillation sensor, of which one sensor component is placed externally on the measuring tube and one sensor component is placed on the support element, is adapted to register movements of the measuring tube relative to the support element and to convert such into an oscillatory signal representing oscillations of the measuring tube. | 02-04-2016 |
| 20160202101 | SENSOR STRUCTURES AND METHODS OF FORMING USING THREE-DIMENSIONAL PRINTING TECHNIQUES | 07-14-2016 |
| 20220136883 | FLUID METERING/MONITORING SYSTEM USING VIBRATION - A fluid monitoring system is provided, which includes at least one fluid vibration sensing unit to provide at least one fluid vibration signal from at least one location on a measuring chamber of a meter to be monitored. The system also includes one or more display units, and a control unit configured to be coupled to the at least one fluid vibration sensing unit and the one or more display units. The control unit is configured to detect a condition from the respective location using the at least one fluid vibration sensing unit and communicate to at least one or more display units to provide a display of the condition. A meter with a fluid monitoring system is also provided. | 05-05-2022 |
