Class / Patent application number | Description | Number of patent applications / Date published |
073861210 | Caused by fluid interaction with obstacle | 64 |
20130061686 | ULTRASONIC FLOW MEASUREMENT UNIT AND ULTRASONIC FLOWMETER USING SAME - Provided is ultrasonic flow measuring unit including: measurement path through which fluid to be measured flows; a pair of ultrasonic transducers disposed respectively upstream and downstream of measurement path and operable to transmit and receive an ultrasonic signal; and ultrasonic transducer attachment unit disposed in measurement path. Each of ultrasonic transducers includes piezoelectric element, terminal for applying a voltage to piezoelectric element, and acoustic matching layer adhered to a transmitting surface of terminal. Ultrasonic transducer is fixed to ultrasonic transducer attachment unit using an elastic coating material. | 03-14-2013 |
20140260665 | Module For Gas Flow Measurements - Disclosed are apparatus and methodology for measuring gas flow using a modular unit as a gas measurement module. The modular unit can be made of molded plastic, cast metal, or other material. A gas meter can include the gas measurement module. The gas measurement module includes a chamber with an inlet and an outlet. An obstacle in the chamber is configured to generate an oscillating gas jet when gas flow into the chamber is at or above a threshold flow rate. The gas measurement module includes a dual sensing assembly with one or more first sensors using a first gas flow sensing technology and one or more second sensors using a second gas flow sensing technology. | 09-18-2014 |
20140311253 | ULTRASONIC SENSOR AND ULTRASONIC FLOWMETER USING SAME - The present invention is an ultrasonic sensor comprising a ring-shaped ultrasonic vibrator that is disposed on an outer circumferential surface of a conduit tube in which a minute flow quantity substance flows and that is vibrated by application of high frequency signals and generates high frequency signals by receiving the vibration and a pair of damping members that are arranged so as to grasp and fix the ultrasonic vibrator, wherein an annular soft uniform matching member having a width along said conduit tube larger than that of said ultrasonic vibrator is provided between an inner circumferential surface of said ultrasonic vibrator and said outer circumferential surface of said conduit tube, and said matching member is made of a material having a sound propagation velocity substantially equal to a sound propagation velocity of the substance flowing in the conduit tube, and an ultrasonic flowmeter using it. | 10-23-2014 |
073861220 | Vortex shedders | 61 |
20080314160 | Vortex Flowmeter - A vortex flowmeter is disclosed, which includes, among other features, a closed measuring tube, through which a flowable medium that is to be quantitatively measured flows, the medium flowing against a disturbing element that is arranged in the measuring tube. A vibration sensor is arranged downstream in the direction of flow detecting the vortex frequency generated by the disturbing element. An electronic evaluation unit is disposed downstream of the vibration sensor converting it into an electric signal corresponding to the quantitative flow rate or volumetric flow rate. The relative position can be changed between the measuring tube and the disturbing element and/or the measuring tube and the vibration sensor in a signal-optimizing manner. | 12-25-2008 |
20090078056 | Converter Pulse Width Shaping Circuit and Excessive Vortex Flow Meter - A converter pulse width shaping circuit ( | 03-26-2009 |
20090120205 | APPARATUS AND METHOD FOR GENERATING VORTEXES IN FLUID FLOW ADJACENT TO A SURFACE - An apparatus for generating vortexes in fluid flow generally adjacent to a surface includes: (a) at least one vortex generating element; and (b) a piezoelectric motor element coupled with the at least one vortex generating element. The piezoelectric motor element responds to a varying voltage signal to move the at least one vortex generating element between a first position extending into the fluid flow an operating distance from the surface and a second position generally flush with the surface. | 05-14-2009 |
20090120206 | Explosion-Proof High Temperature Compatible, Multi-Vortex Flow Meter - A temperature-sensitive sensor ( | 05-14-2009 |
20090211368 | Sensor tube with reduced coherent vortex shedding - A device comprises a sensor tube for placement in a process flow and a flow-modifying element. The flow-modifying element is formed on the sensor tube, in order to reduce flow-induced vibrations by reducing coherent vortex shedding in the process flow. | 08-27-2009 |
20090217771 | Measuring system for a medium flowing in a process line - The measuring system is inserted into the course of a process line and serves for registering at least one measured variable of a medium flowing in the process line. The measuring system includes for such purpose a measuring transducer having a measuring tube serving for conveying medium being measured and a sensor arrangement, which has at least one sensor element reacting primarily to the measured variable to be registered, and which delivers by means of at least one sensor element at least one measurement signal influenced by the measured variable. Further, the measuring system includes a measuring electronics communicating with the measuring transducer and using the at least one measurement signal for producing, at least at times, at least one measured value instantaneously representing the measured variable. | 09-03-2009 |
20090301219 | Multi-Vortex Flowmeter Integrating Pressure Gauge - A multi-vortex flowmeter ( | 12-10-2009 |
20100011878 | Measuring system with a flow conditioner arranged at an inlet of a measuring tube - The measuring system is inserted into the course of a process line and serves for registering at least one measured variable of a medium flowing in the process line. The measuring system includes for such purpose a measuring transducer having a measuring tube serving for conveying medium being measured and a sensor arrangement, which has at least one sensor element reacting primarily to the measured variable to be registered, and which delivers by means of at least one sensor element at least one measurement signal influenced by the measured variable. Further, the measuring system includes a measuring electronics communicating with the measuring transducer and using the at least one measurement signal for producing, at least at times, at least one measured value instantaneously representing the measured variable. The measuring tube has, in the case of the measuring system of the invention, a smaller flow cross section than a supply segment of the process line connected to the inlet end of the measuring system. To this end, the measuring system further includes a flow conditioner arranged at the inlet end of the measuring tube and mediating between the measuring tube and the supply segment of the process line. The flow conditioner has a lumen tapering in the direction of the measuring tube. During operation, medium flows through the lumen of the flow conditioner. The flow conditioner includes at least one inner edge arranged upstream of its outlet end and protruding into the lumen of the flow conditioner. During operation, medium conveyed in the flow conditioner flows against the inner edge. | 01-21-2010 |
20100011879 | Measuring system with a flow conditioner arranged at an inlet of a measuring tube - The measuring system is inserted into the course of a process line and serves for registering at least one measured variable of a medium flowing in the process line. The measuring system includes for such purpose a measuring transducer having a measuring tube serving for conveying medium being measured and a sensor arrangement, which has at least one sensor element reacting primarily to the measured variable to be registered, and which delivers by means of at least one sensor element at least one measurement signal influenced by the measured variable. Further, the measuring system includes a measuring electronics communicating with the measuring transducer and using the at least one measurement signal for producing, at least at times, at least one measured value instantaneously representing the measured variable. The measuring tube has, in the case of the measuring system of the invention, a smaller flow cross section than a supply segment of the process line connected to the inlet end of the measuring system. To this end, the measuring system further includes a flow conditioner arranged at the inlet end of the measuring tube and mediating between the measuring tube and the supply segment of the process line. The flow conditioner has a lumen tapering in the direction of the measuring tube. During operation, medium flows through the lumen of the flow conditioner. The flow conditioner includes at least one inner edge arranged upstream of its outlet end and protruding into the lumen of the flow conditioner. During operation, medium conveyed in the flow conditioner flows against the inner edge. | 01-21-2010 |
20100018322 | Switchable Vortex Generator and Array Formed Therewith, and Uses of the Same - The invention relates to a vortex generator ( | 01-28-2010 |
20100037704 | Measuring system with a flow conditioner arranged at an inlet of a measuring tube - The measuring system is inserted into the course of a process line and serves for registering at least one measured variable of a medium flowing in the process line. The measuring system includes for such purpose a measuring transducer having a measuring tube serving for conveying medium being measured and a sensor arrangement, which has at least one sensor element reacting primarily to the measured variable to be registered, and which delivers by means of at least one sensor element at least one measurement signal influenced by the measured variable. Further, the measuring system includes a measuring electronics communicating with the measuring transducer and using the at least one measurement signal for producing, at least at times, at least one measured value instantaneously representing the measured variable. The measuring tube has, in the case of the measuring system of the invention, a smaller flow cross section than a supply segment of the process line connected to the inlet end of the measuring system. To this end, the measuring system further includes a flow conditioner arranged at the inlet end of the measuring tube and mediating between the measuring tube and the supply segment of the process line. The flow conditioner has a lumen tapering in the direction of the measuring tube. During operation, medium flows through the lumen of the flow conditioner. The flow conditioner includes at least one impingement surface arranged upstream of its outlet end and protruding into the lumen of the flow conditioner. During operation, medium conveyed in the flow conditioner flows against the impingement surface. | 02-18-2010 |
20100307262 | SMALL LINE SIZE VORTEX FLOWMETER - A vortex flowmeter and method includes a conduit for process fluid flow and a shedder disposed within the central bore of the conduit. First and second diaphragms are mounted in inner wall portions of the conduit, on opposite sides of the shedder. A sensor is disposed externally to the conduit, and is coupled to each diaphragm with fill tubes. The diaphragms respond to pressure variations generated by vortex shedding, and transmit pulse trains through the fill tubes to a sensor. The pulse trains, which are substantially out of phase with one another, are effectively synchronized with one another by reversing phase of one pulse train. | 12-09-2010 |
20110061469 | Vortex Generator for Extended Flow Ranges and Faster Response - A fluid flow device having a vortex generator in one or more channels, each channel having a converging/diverging section to scale the flow velocity to a desirable range of Reynolds number and vortex shedding frequency. Said flow device may be used as a flow meter by measuring the vortex shedding/passing frequency from each vortex generator. Further improvement is had by selecting the highest usable frequency, with its corresponding scaling factor, as the most-precise and fastest-response measurement output of the flow-measuring device. Still further improvement is gotten by cross-checking all usable frequencies against each other to detect failure of one or more vortex shedding/passing sensors. | 03-17-2011 |
20110247430 | MEASURING ARRANGEMENT WITH AN OPTICAL SENSOR - A measuring arrangement for determining a chemical and/or physical, measured variable-especially a volume flow and/or mass flow-of a measured material flowing through a pipeline, wherein the measuring arrangement comprises a measuring transducer, wherein the measuring transducer includes at least one optical waveguide, which serves for producing, registering and/or transmitting measurement signals, and wherein the registering of the measuring signals in the optical waveguide occurs by means of a Fabry-Pérot sensor. | 10-13-2011 |
20120060624 | SERIES CONFIGURED VARIABLE FLOW RESTRICTORS FOR USE IN A SUBTERRANEAN WELL - A variable flow resistance system can include a vortex device, with resistance to flow of a fluid composition through the vortex device being dependent on a rotation of the fluid composition at an inlet to the vortex device. Another system can include a second vortex device which receives a fluid composition from an outlet of a first vortex device, a resistance to flow of the fluid composition through the second vortex device being dependent on a rotation of the fluid composition at the outlet. Another system can include a first vortex device which causes increased rotation of a fluid composition at an outlet thereof in response to an increase the fluid composition velocity, and a second vortex device which receives the fluid composition from the outlet, a flow resistance through the second vortex device being dependent on the rotation of the fluid composition at the outlet. | 03-15-2012 |
20120125120 | SERIES CONFIGURED VARIABLE FLOW RESTRICTORS FOR USE IN A SUBTERRANEAN WELL - A well device can include a fluid diode having an interior surface that defines an interior chamber, and an outlet from the interior chamber, with the interior surface operable to direct fluid to rotate in a rotational direction through the outlet, and another fluid diode having an interior surface that defines an interior chamber in fluid communication with the outlet, the second interior surface operable to direct fluid to rotate in the rotational direction in response to receiving the fluid rotating in the rotational direction through the outlet. A method of controlling flow in a well can include communicating fluid through two or more fluid diodes in a flow path between an interior and an exterior of a well device in the well. Communicating the fluid through the fluid diodes can cause the fluid to rotate within the fluid diodes in a same rotational direction. | 05-24-2012 |
20120192657 | VORTEX FLOWMETER - Vortex flowmeter ( | 08-02-2012 |
20120325014 | Vortex Shedding Flow Meter - The present invention relates in general to vortex shedding flow meters with enhanced sensitivity for sensing and measuring vortex frequencies. | 12-27-2012 |
20130086994 | Pulsating Flow Meter - A flow system based on pulsating mechanism that has better accuracy compared to conventional vortex meters due to the fact that the pulsations generated have increased signal response and lower frequency, both of which are favorable for a high accuracy measurement. Certain embodiments include a housing, a bluff body, an orifice plate, and means for detecting a pulsating frequency of pulsating flow and determining the fluid flow rate based on the detected pulsating frequency. In certain embodiments, the housing can include an outer shell, an inlet, and an outlet. | 04-11-2013 |
20130112008 | System and Method for Determining Fluid Speed - A flow speed sensor arrangement is provided for measuring a flow speed of a fluid stream relative to an object. The arrangement comprises a first obstructive body having a first forward facing surface and two lateral edges and a second obstructive body having a second forward facing surface. The second obstructive body is positioned in tandem relative to the first obstructive body so that the first and second forward facing surfaces face the same direction and so that when the first forward facing surface is presented to an incoming fluid stream, the first obstructive body is between the incoming fluid flow and the second obstructive body. A sensor array is disposed on the second forward facing surface. The first and second obstructive bodies are attachable to the object so that the first forward face is presented to an incoming fluid stream when the object is immersed in the fluid stream. | 05-09-2013 |
20140041459 | ACCURACY IMPROVEMENT IN FLOWMETER SYSTEMS - Implementations of the present disclosure are directed to a flowmeter method and system. In an implementation, a signal is received a signal from a flowmeter and a value is determined based on the signal. The value is compared to a threshold. A heartbeat value is provided when the value is greater than a threshold value. In some implementations, a flow rate of a fluid is based on the heartbeat value. In some implementations, the heartbeat value is monitored and an alarm is selectively generated based on the monitoring. | 02-13-2014 |
20140174197 | SENSOR MODULE MEASURING AND/OR MONITORING PARAMETERS OF MEDIA FLOWING IN PIPELINES AND MEASURING SYSTEM FORMED THEREWITH - A sensor module serves for registering a flow velocity and/or a volume flow rate, of a fluid flowing in a pipeline. The sensor module comprises a platform (P | 06-26-2014 |
20140260666 | FLANGED REDUCER VORTEX FLOWMETER - A flanged vortex flowmeter is connected to a flanged piping system that has a diameter larger than the diameter of the measurement section of the vortex flowmeter border. The vortex flowmeter has an inlet flange that reduces diameter from the inlet to the measurement section. A bluff body positioned in the measurement section produces vortices that alternate at a frequency proportional to the flow rate of fluid through the flowmeter. A length from inception of vortex shedding at the bluff body to a first expansion of the flow passage downstream of the bluff body is greater than a vortex wavelength of the vortices produced by the bluff body. | 09-18-2014 |
20150027233 | FLOW AREA REDUCTION TECHNIQUES USING A CENTRALIZED STREAMLINED BODY IN VORTEX FLOWMETERS - Certain embodiments herein relate to configurations for reducing the flow area for fluids traveling through a Vortex flowmeter. Such configurations may establish a minimum required Reynolds number consistent with optimized performance of the Vortex flowmeter. Various configurations for achieving optimized performance may include inserting one or more segments or a streamlined, torpedo-shaped body into a bore of a meter body of the Vortex flowmeter to block a certain cross-sectional area of the bore. By reducing the cross-sectional area of the bore, the Reynolds number of fluids may be increased to the optimized level. Another configuration may include reducing the diameter of the bore of the meter body. Any of these configurations may be implemented to achieve a desired Reynolds number, and hence, optimized performance. Certain embodiments herein also relate to determining or calculating precise or near precise sizes for segment insertions, torpedo body diameters, and diameters of the meter body. | 01-29-2015 |
20150027234 | FLOW AREA REDUCTION IN VORTEX FLOWMETERS USING BORE REDUCTION TECHNIQUES - Certain embodiments herein relate to configurations for reducing the flow area for fluids traveling through a Vortex flowmeter. Such configurations may establish a minimum required Reynolds number consistent with optimized performance of the Vortex flowmeter. Various configurations for achieving optimized performance may include inserting one or more segments or a streamlined, torpedo-shaped body into a bore of a meter body of the Vortex flowmeter to block a certain cross-sectional area of the bore. By reducing the cross-sectional area of the bore, the Reynolds number of fluids may be increased to the optimized level. Another configuration may include reducing the diameter of the bore of the meter body. Any of these configurations may be implemented to achieve a desired Reynolds number, and hence, optimized performance. Certain embodiments herein also relate to determining or calculating precise or near precise sizes for segment insertions, torpedo body diameters, and diameters of the meter body. | 01-29-2015 |
20150040684 | DETECTION OF AIR FLOW VELOCITY USING FAST FOURIER TRANSFORM AND VORTEX SHEDDING - A system for detecting velocity airflow in a duct includes a plurality of vortex shedders arranged within the duct for inducing the shedding of vortices at a corresponding plurality of selected locations at a frequencies related to the airflow in the duct and a sound-sensing location on each vortex shedder. A plurality of microphones, each microphone being coupled acoustically with each sound-sensing location senses sounds generated by said shedding of vortices in a corresponding passage and provides an information signal indicative of said vortex shedding sounds. A processing unit performs a Fast Fourier Transform on the information signals to determine frequency of maximum amplitude within the information signals. | 02-12-2015 |
20150068323 | VORTEX FLOWMETER - An installation hole, in which a detector is accommodated, is formed in a substantially central portion of a body of a vortex flowmeter. A first ring is formed on an annular wall that forms a boundary between a first aperture portion and a second aperture portion of the installation hole. In the detector, a detecting element made up from a piezoelectric element is accommodated in a holder. A pair of second rings is formed on the outer circumferential surface of the holder. By inserting the detector in the installation hole, the second rings are placed in sliding contact with the inner circumferential surface of the installation hole, and the first ring comes into abutment with a boundary region of the holder. Consequently, a seal is formed between the detector and the body by the first and second rings. | 03-12-2015 |
20160123781 | SPLIT FLOW VORTEX FLOWMETER - A vortex flowmeter has first and second process connections with a meter inlet and outlet, respectively, therein. The first and second process connections are configured to connect, respectively, to upstream and downstream segments of a fluid pipeline. A fluid conveyance system conveys fluid from the inlet to the outlet and divides the fluid into separate fluid streams that flow through separate passages. Each of the passages has its own vortex metering unit configured to generate and detect vortices in the respective fluid stream. A processing system is configured to calculate a sum of the flow rates through all of the fluid streams. | 05-05-2016 |
20160123782 | VORTEX FLOWMETER INCLUDING PRESSURE PULSATION AMPLITUDE ANALYSIS - A configuration tool is for a vortex flowmeter having a flowtube, a bluff body positioned in the flowtube for shedding vortices in the fluid, and a pressure sensor configured to obtain a signal indicative of a time-varying fluid pressure having an oscillation associated with the vortices. The configuration tool includes a processor that determines a type of fluid flowing through the flowtube based on the amplitude of the oscillation. The processor sets a fluid-type setting of the vortex meter to match the determined type of fluid. An alarming system for a control system including such a flowmeter includes a processor that assesses a density of a fluid flowing through the flowtube based on the amplitude and compares the assessed density to a fluid density configuration setting. The processor activates an alarm if the difference between the assessed density and the fluid density configuration setting exceeds a threshold. | 05-05-2016 |
20160377462 | FLUID FLOW FEATURE IDENTIFICATION METHODS AND TOOLS - A flow feature detection method is described. The method includes storing a plurality of points at locations over a region in which vortex detection is to be performed. A value for each of a plurality of fluid flow parameters, such as velocity, pressure and density, is determined at each point. The points are grouped as being contained in either a flow feature portion or normal flow portion of the region according to one or more statistical distribution for the fluid flow parameters. A point is identified as being indicative of the flow feature by identifying multiple further points at least partially surrounding the point, and determining a plane in which the flow feature is identifiable based upon the relative values of the one or more fluid flow parameter for the further points. The method may be used to detect vortices and to identify a two-dimensional plane representative of a vortex. | 12-29-2016 |
20220136873 | FIELD DEVICE - A field device includes: a casing portion that has an amplifier shield chamber into which an analog signal transfer portion transferring an analog signal output from a detector is able to be inserted; a signal conversion portion that is disposed inside the amplifier shield chamber, the signal conversion portion being configured to convert the analog signal into a digital signal; and a first connector that is disposed inside the amplifier shield chamber, the first connector being configured to connect the analog signal transfer portion and the signal conversion portion to each other in an attachable/detachable manner. | 05-05-2022 |
073861240 | Movable sensor responsive to vortices | 30 |
20080216586 | LEAK CHECK DEVICE FOR VORTEX SENSOR REPLACEMENT - A vortex flowmeter measures process fluid flow. The vortex flowmeter includes a conduit that carries the process fluid. A sensing device is housed in a cavity of a sensor body that is coupled to the conduit. A flexure is disposed in a portion of the conduit. The flexure is configured to isolate the process fluid in the conduit from the sensing device. A pathway extends from the cavity to an outer surface of the sensor body. | 09-11-2008 |
20080307894 | Method and Sensor System for Monitoring a Fluid Flow - In a method for monitoring fluid flow sensing a first sensed variable such as the differential pressure of the fluid flow as at least an indirect function of the fluid flow to be sensed and a second sensed variable such as the vortex shedding frequency at a bluff body located in the flow as at least an indirect function of the fluid flow and different from the first sensed variable is detected and/or determined; the first and second sensed variable are simultaneously detected and/or determined on the basis of one and the same basic physical sensing principle; and the first and second sensed variable are compared to each other. | 12-18-2008 |
20090019944 | Vented High-Temperature Piezoelectric-Based Field Device - A process fluid sensor for sensing a characteristic of a process fluid is provided. The process fluid sensor includes a metallic sensor body that defines a chamber therein. A piezoelectric crystal element is disposed proximate the chamber and is configured to generate an electrical signal in response to a mechanical input. The piezoelectric crystal element is mechanically coupleable to the process fluid, but is sealed within the sensor body with the exception of a gaseous pathway. A vortex flowmeter utilizing the process fluid sensor is also provided. | 01-22-2009 |
20090049926 | Triple Redundancy Vortex Flowmeter System - A system includes a first shedder that is at least partially disposed in a fluid conduit and that generates vortices within the fluid conduit, a first flow sensor system that is responsive to the vortices generated by the first shedder and a second flow sensor system that is responsive to the vortices generated by the first shedder. The system further includes a second shedder that is at least partially disposed in the fluid conduit, that generates vortices within the fluid conduit, and that is separated from the first shedder by a distance. A third flow sensor system is responsive to the vortices generated by the second shedder. | 02-26-2009 |
20090165565 | Method of Determining the Viscosity of a Fluid - A method is used to determine the viscosity of a fluid. The method includes arranging a body ( | 07-02-2009 |
20090241687 | Multi-Vortex Flowmeter Employing Volume Flow Rate as Switching Point - A multi-vortex flowmeter ( | 10-01-2009 |
20100018323 | Karman Vortex Flowmeter Assembly Comprising A Fiber Bragg Grating Sensor And Method To Measure A Fluid Flow Rate - An assembly comprising a fluid channel and a flowmeter, the flowmeter ( | 01-28-2010 |
20100043566 | Measuring system with a flow conditioner arranged at an inlet of a measuring table - The measuring system is inserted into the course of a process line and serves for registering at least one measured variable of a medium flowing in the process line. The measuring system includes for such purpose a measuring transducer having a measuring tube serving for conveying medium being measured and a sensor arrangement, which has at least one sensor element reacting primarily to the measured variable to be registered, and which delivers by means of at least one sensor element at least one measurement signal influenced by the measured variable. Further, the measuring system includes a measuring electronics communicating with the measuring transducer and using the at least one measurement signal for producing, at least at times, at least one measured value instantaneously representing the measured variable. The measuring tube has, in the case of the measuring system of the invention, a smaller flow cross section than a supply segment of the process line connected to the inlet end of the measuring system. To this end, the measuring system further includes a flow conditioner arranged at the inlet end of the measuring tube and mediating between the measuring tube and the supply segment of the process line. The flow conditioner has a lumen tapering in the direction of the measuring tube. During operation, medium flows through the lumen of the flow conditioner. The flow conditioner includes at least one impingement surface arranged upstream of its outlet end and protruding into the lumen of the flow conditioner. During operation, medium conveyed in the flow conditioner flows against the impingement surface. | 02-25-2010 |
20100192701 | FLEXIBLE SENSOR FLOW AND TEMPERATURE DETECTOR - Methods and apparatuses for detecting the flow volume of a fluid using alternating vortices. | 08-05-2010 |
20110030483 | ANNULUS VORTEX FLOWMETER - An annulus vortex flowmeter for use in conjunction with a subterranean well. A flowmeter includes a housing, a vortex responsive structure which vibrates in response to vortices produced external to the housing and a sensor which senses vibration of the structure and produces a signal indicative of a flow rate. A method of measuring fluid flow rate between a tubular string and a zone intersected by a wellbore includes utilizing a flowmeter having a vortex shedding device external to a housing for interconnection in the tubular string, the flowmeter including a vortex responsive structure which vibrates in response to vortices produced by the vortex shedding device as the fluid flows through an annulus external to the housing, and a sensor which senses vibration of the structure and produces a signal indicative of the rate of flow of the fluid; and determining the flow rate based on the sensor signal. | 02-10-2011 |
20110083515 | Flow measurement arrangement and method for monitoring its functioning - A flow measuring arrangement for measuring flow of a medium through a measuring tube, including: at least one constriction located in the measuring tube, which effects a reduction of a volume through which the medium flows internally in the measuring tube, and therewith a change in pressure conditions internally in the measuring tube, dependent on dimensions of the constriction and dependent on flow. A measuring system connected to the measuring tube which serves to measure a pressure (Δp, p) dependent on flow through the measuring tube and dependent on the dimensions of the constriction. Measuring electronics, which determines flow on the basis of the measured pressure (Δp, p). The flow measuring arrangement can, with minimal degradation of flow through the measuring tube, perform an automatic monitoring of its functional ability. To this end, the flow measuring arrangement additionally includes: at least one deflectable membrane applied to one of the measuring tube constrictions internally in the measuring tube, wherein deflection of the membrane effects a change, dependent on an amplitude of the deflection, of a volume through which medium flows internally in the measuring tube; an apparatus ( | 04-14-2011 |
20110107847 | Acoustic Sensor For Averaging Pitot Tube Installation - Apparatus and method for detecting the mounting mode of a bluff body inserted into a fluid carrying conduit by detecting and displaying the natural frequency of vibration of the bluff body caused by the pressure of the flowing fluid. | 05-12-2011 |
20110154913 | VORTEX FLOW METER WITH VORTEX OSCILLATION SENSOR PLATE - A vortex flow meter includes a vortex responsive assembly having a diaphragm. The diaphragm seals a base end of the assembly to form an isolation chamber. The assembly is adapted to seal an opening in a sidewall of a flow passage. Support struts preferably protrude from the assembly into the flow passage. In one configuration, a vortex oscillation sensor plate has a proximate edge supported on the diaphragm and an opposite distal edge that is unsupported. The vortex oscillation sensor plate has upstream and downstream edges preferably supported by the support struts. A pivoting strut extends along a central region of the vortex oscillation sensor plate. The pivoting strut extends through the diaphragm. The pivoting strut transfers vortex oscillations to a sensor. An electronic transmitter circuit receives a sensor output and provides an output related to flow of the fluid. | 06-30-2011 |
20110209559 | FLUID FLOW METER - A fluid flow meter includes a fitting attachable to a waterworks valve or pipeline so as to extend at least partially through an insertion aperture thereof. A measurement cylinder is pivotally attached to the fitting, and includes a fluid vortex generating obstruction. A sensor body extends through the fitting and has a sensor element at an end thereof disposed in the measurement cylinder and generally aligned with the obstruction to detect fluid vortices generated by the obstruction. The measurement cylinder is selectively movable from a position generally aligned with the fitting, to a position generally parallel to the fluid flowing through the valve or pipeline. | 09-01-2011 |
20110219885 | FLOWMETER BODY WITH A GROOVE IN A FLOWMETER OUTLET SURFACE - A flowmeter body ( | 09-15-2011 |
20110314934 | VORTEX FLOW MEASURING DEVICE FOR MONITORING AND/OR MEASURING FLOW OF DISTRIBUTED PARTICLES AND/OR DROPLETS - A vortex flow measuring device for monitoring and/or measuring an, at least at times, two phase medium flowing in a pipeline; wherein the medium has a first phase, especially a gaseous, first phase, with a first density and a second phase, especially a particle or droplet shaped, second phase, having a second density different from the first density; and wherein the vortex flow measuring device has at least a measuring tube, which can be inserted in a pipeline, a bluff body, and a vortex sensor, which responds to pressure fluctuations. The vortex flow measuring device additionally includes an acoustic transducer, which is formed integrally in a component, especially the bluff body, which protrudes into a flow path within the measuring tube, or is acoustically coupled to such component in such a manner that acoustic signals produced by impact of particles and/or droplets of the second phase on the component are transducible to electrical signals by the acoustic transducer. | 12-29-2011 |
20130014591 | VORTEX FLOWMETER, PRESSURE SENSOR FOR A VORTEX FLOWMETER AND METHOD FOR PRODUCING SUCH A PRESSURE SENSORAANM FERNANDES; Neville C.AACI PuneAACO INAAGP FERNANDES; Neville C. Pune INAANM KRISCH; HenrikAACI KrefeldAACO DEAAGP KRISCH; Henrik Krefeld DEAANM LAU; MarkusAACI DuisburgAACO DEAAGP LAU; Markus Duisburg DEAANM TOURNILLON; SylvainAACI DuisburgAACO DEAAGP TOURNILLON; Sylvain Duisburg DE - A vortex flowmeter having a measuring tube through which a medium can flow, a bluff body in the measuring tube and a pressure sensor in the effective range of the bluff body. The pressure sensor has a deflectable measuring diaphragm for determining the pressure in the medium neighboring the measuring diaphragm, at least one optical fiber being arranged on and/or in the measuring diaphragm for detecting the deflection of the measuring diaphragm. The optical fiber is at least partially effectively connected to the measuring diaphragm along its length so that a deflection of the measuring diaphragm caused by the medium pressure leads to an extension and/or compression of the optical fiber. The pressure sensor has a pocket that can be deflected by the pressure of the medium and which surrounds the measuring diaphragm and optical fiber to protect them from the medium. The measuring diaphragm is deflected with the pocket. | 01-17-2013 |
20130068036 | VORTEX FLOW METER - A vortex flow meter that senses the alternating pressure variations generated by a fixed vortex shedding generator. The alternating pressure variations of the vortices within the rows on each side of the vortex shedding generator act upon flexible elements producing forces on long columns that are transmitted to remotely located piezoelectric force sensors. The alternating forces upon the two columns are used to determine the passage of a vortex and thereby the flow. Improved output signal by minimizing loss of parasitic energy. 97% of the available signal is applied to the piezoelectric force sensors as compared to conventional 60%. Process influences such as vibration in all planes and pumping pulsations are equal and opposing and are rejected by the sensor. A capability of operating at extreme process temperatures is assured for the high temperature of the process is dissipated to the environment along the long columns. Reliability of operation is assured for the sensor has no process seals and is easily replaced by technicians, without interrupting flow or venting process. Improved process containment is realized with construction having a high safety factor and multiple stages of process containment. Wafer form reduces installation costs and an optional redundant sensor improves reliability of operation, decreases pumping losses, and only requires one K-factor. Process up-time is assured with an economical redundant sensor. | 03-21-2013 |
20130139611 | VORTEX FLOW METER - A vortex flow meter having a measurement tube through which a medium can flow, an obstacle provided in the measurement tube for generating vortices in the medium, and a deflection body located in the region of action of the obstacle and which is deflectable by pressure variations associated with the vortices in the medium. A vortex flow meter without cabled connection between the medium-filled space in the measurement tube and the medium-free space outside the measurement tube is produced by at least one magnetic field generating device being arranged outside of the measurement tube for generating a magnetic field near the deflection body, by the deflection body having a different magnetic permeability from the medium and influencing the magnetic field, and by at least one magnetic field registering device for registering the magnetic field in the region of the deflection body being arranged outside the measurement tube. | 06-06-2013 |
20130192387 | FLOW SENSOR - In a flow sensor, a horizontal dimension Xt between short side wall portions facing respective sides of a vortex generator is longer than a vertical dimension Yt between long side wall portions facing respective ends of the vortex generator. The short side wall portions are formed linearly or in straight lines along the vortex generator, whereas the long side wall portions are curved at a predetermined radius of curvature. | 08-01-2013 |
20140041460 | VORTEX FLOW METER - A vortex flow meter ( | 02-13-2014 |
20150027235 | OPTIMIZED TECHNIQUES FOR GENERATING AND MEASURING TOROIDAL VORTICES VIA AN INDUSTRIAL VORTEX FLOWMETER - A vortex flowmeter may utilize a ring-shaped bluff body as the vortex generator or shedder. The ring shape and size of the vortex ring generator may be optimized to produce linear and stable toroidal vortex outputs that may outperform the conventional shedder bar. In comparison to the conventional vortex shedder bar, the ring may have a slimmer configuration and a higher K-factor, and hence, a higher resolution. | 01-29-2015 |
20150114134 | ULTRASONIC FLOWMETER - An ultrasonic flowmeter for measuring the flow of a flowing medium ( | 04-30-2015 |
20150122051 | FLOWMETER COMPRISING PIEZOELECTRIC SENSOR - The present invention is directed to a flowmeter comprising a piezoelectric sensor. The flowmeter is configured so that fluid flow through a channel, typically either a fluid conduit or a housing in which the sensor is oriented, produces oscillating stresses in a piezoelectric material. The oscillating stresses produce an electric signal. Characteristics of the electric signal, such as the magnitude of the signal at particular frequencies, can be measured and used to determine the rate of fluid flow through the channel. | 05-07-2015 |
20150323356 | MULTIVARIABLE VORTEX FLOWMETER - A sensor assembly for a vortex flowmeter having a flowtube, a bluff body in the flowtube, and a sensor that detects vortices. The sensor assembly extends into contact with the process fluid through a process penetration opening. A sensor body seals the process penetration opening to limit flow of process fluid out of the flowmeter through the process penetration opening. A vortex sensor housing is secured to the sensor body. The vortex sensor housing has a pair of pressure-responsive diaphragms facing outwardly from opposite sides of the vortex sensor housing. A vortex sensor is positioned to detect motion of at least one of the pressure-responsive diaphragms to detect vortices formed in the process fluid. A temperature sensor senses a temperature of the process fluid. | 11-12-2015 |
20160084686 | OPTIMIZED TECHNIQUES FOR GENERATING AND MEASURING TOROIDAL VORTICES VIA AN INDUSTRIAL VORTEX FLOWMETER - A vortex flowmeter may utilize a ring-shaped bluff body as the vortex generator or shedder. The ring shape and size of the vortex ring generator may be optimized to produce linear and stable toroidal vortex outputs that may outperform the conventional shedder bar. In comparison to the conventional vortex shedder bar, the ring may have a slimmer configuration and a higher K-factor, and hence, a higher resolution. | 03-24-2016 |
20160123783 | VORTEX FLOW MEASURING SENSOR AND VORTEX FLOW MEASURING TRANSDUCER FOR MEASURING FLOW VELOCITY OF A FLUID - A vortex flow transducer for measuring the flow velocity of a fluid flowing in a measuring tube as well as to a vortex flow sensor for the vortex flow transducer. In such case, the vortex flow sensor includes a housing having a central axis and a connecting section, on which a shoulder is embodied, which has a bearing area. In a plane of the shoulder a membrane is arranged, whose edge is positioned over the bearing area and is axially spaced therefrom. The vortex flow sensor includes, furthermore, a flange shaped support system having a radial edge section and a cylindrical axial section, wherein the radial edge section lies with its surface against the shoulder of the platform and the cylindrical axial section extends parallel to the central axis, so that the membrane is supported against the support system upon application of a predetermined pressure on the membrane. | 05-05-2016 |
20160178416 | FLUID MONITORING SYSTEM AND METHOD FOR SEMICONDUCTOR FABRICATION TOOLS | 06-23-2016 |
20180023985 | VORTEX FLOWMETER WITH REDUCED PROCESS INTRUSION | 01-25-2018 |
20180023986 | DEVICE AND METHOD FOR MEASURING THE PARAMETERS OF FLUID FLOW | 01-25-2018 |