| Entries |
| Document | Title | Date |
|---|
| 20080196510 | Tubular Insert for a Magnetic Inductive Flow Meter - There is described a tubular insert for a magnetic inductive flowmeter, a production method for such a tubular insert and a flowmeter. The tubular insert essentially comprises an electrically-insulating material, in particular, rubber, reinforced with a metal mesh, at least in a measuring section. The tubular metal mesh comprises one or more mesh sections, pre-prepared from sheet mesh by stamping, bending and welding butt edges running essentially parallel to the tube axis such as to form an essentially tubular metal mesh. The tubular metal grid is embedded in the electrically-insulating material passing therethrough and the electrically-insulating material essentially covers the inner and out surfaces of the tubular material. A robust, tubular insert is thus achieved, with a corresponding cheap production cost. | 08-21-2008 |
| 20080257064 | Tubular Insert for a Magnetic Induction Flow Meter - There is described a tubular insert for a magnetically inductive flowmeter, a production method for said type of tubular insert and a flowmeter. The tubular insert is made of, essentially, an electrically-insulating material, in particular, rubber, which is reinforced by a tubular moulding part made of a dimensionally stable plastic which is based on polymers, at least in a measuring section. The tubular moulding part is embedded in the electrically-insulating rubber material by a press or casting method such that the electrically-insulating, rubber material essentially covers the inner surfaces of the tubular moulding part. An economical to produce, robust, tubular insert is thus achieved. | 10-23-2008 |
| 20090025486 | Static fluid meter - A static fluid meter includes a flow rate sensor having a set of stationary measuring parts, and a measurement tube having one opening that serves as a fluid inlet and another opening as a fluid outlet, the tube containing internally a first set of said measuring parts and supporting externally a second set of said measuring parts. An outer case into which said measurement tube is inserted and fastened in leaktight manner, contains at least parts for processing data from said sensor. The case is made from a box provided with two through orifices in its sides for passing the measurement tube assembly and for leaktight fastening to corresponding flanges arranged on said measurement tube. | 01-29-2009 |
| 20090038409 | Measuring device - A measuring device, embodied, for example, as an in-line measuring device and/or flow measuring device, serves for registering at least one measured variable of a medium, for example a medium flowing in a pipeline, and is made, at least in part, of a solid, biologically degradable, synthetic material (BDM). | 02-12-2009 |
| 20090056471 | Magnetic induction flowmeter having a plastic measuring tube - A magnetic induction flowmeter has a plastic measuring tube ( | 03-05-2009 |
| 20090071263 | MAGNETIC FLOW TRANSMITTER HAVING MULTIPLE FLOWTUBE DATA SETS - A magnetic flow transmitter includes a calibration converter that performs a calibration calculation routine to produce a calibration constant that couples to a flow converter. A data set input couples a flowtube data set that is associated with a unique flowtube to the calibration converter. A data table associates multiple flowtube data sets with multiple calibration calculation routines. The data table couples a calibration calculation routine that is unique to the flowtube data set to the calibration converter. | 03-19-2009 |
| 20090071264 | Flowmeter - An electromagnetic flowmeter assembly is described in which an excitation field is set up across a flow conduit and electrodes are used to sense the electromagnetic field generated across the flow conduit as a result of interaction between the excitation field and fluid flowing along the flow conduit. The signals obtained from the electrodes are processed, together with stored calibration data, by processing circuitry to determine flow measurements and means is provided for dynamically updating the calibration data. | 03-19-2009 |
| 20090120203 | Method and Device for Measuring Foreign Bodies in the Measuring Medium - The disclosure relates to a method for measuring a flow rate, in particular in an inductive flowmeter, in which an electrical signal is applied to a measuring medium flowing in a measuring tube at electrodes, and the response function at measuring electrodes is determined as a measure of the flow rate, and to a corresponding flowmeter device. So that the flow effects of gas bubbles and/or particles in the measuring medium can be distinguished from other faults and the determination of the flow rate is thus more reliable, the disclosure proposes that, in order to detect gas bubbles and/or particles in the measuring medium, a magnetic and/or electric field is applied to the latter and the potential and/or current is/are read out at one or more electrodes, the signal profile A(t), together with its signal-to-noise component, is measured electronically as a function of the time, and a statistical evaluation is used to infer the existence of gas bubbles and/or particles. | 05-14-2009 |
| 20090188328 | MEASUREMENT DEVICE - A measurement device comprises: a container 1 including an aperture | 07-30-2009 |
| 20090205438 | Magneto-inductive flow rate meter - A magneto-inductive flow measuring device providing, in addition to flow information for a medium, also information concerning electrical conductivity of the medium. For a highly accurate determination of the electrical conductivity, the invention provides the following solution: a temperature measuring unit is provided, which makes available information concerning the temperature of the medium. On the basis of the measured temperature, a control/evaluation unit ascertains a correction value for electrical conductivity and makes available a correspondingly corrected value for the electrical conductivity. | 08-20-2009 |
| 20090205439 | METHOD FOR OPERATION OF A FLOW MEASUREMENT DEVICE, AND A FLOW MEASUREMENT DEVICE ITSELF - The disclosure relates to a method for operation of a flow measurement device, and to a flow measurement device itself. In order in this case to record the conductivity of the medium or faults resulting from deposits by means of a measurement tube configuration in a technically simple manner, a total of at least 4 electrodes are arranged distributed on the circumference of the measurement tube, in the measurement tube. When a signal is fed in at one of the electrodes or at an electrode pair, an electric current is measured between one electrode pair, while an electrical voltage is measured between another electrode pair. An impedance value is determined from the two measured values, from which impedance value a conductivity of the medium is determined and/or in comparison of different conductivities or in comparison with historical values, it is deduced that there is a covering layer on the electrodes. | 08-20-2009 |
| 20090260452 | Method for Operating an Electromagnetic Flowmeter and Electromagnetic Flowmeter - Disclosed is a method for operating an electromagnetic flowmeter and a flowmeter. A measuring tube provided with a coil arrangement for producing a magnetic field at right angles to the direction of flow. The direction of current flow in the coil arrangement is altered periodically, and the current is kept essentially constant in one period after a rise to a predetermined value. the voltage applied to the coil arrangement and/or its derivative is determined and compared with an associated reference value. If this voltage or derivative does not fall below the reference value in a desired minimum time within a measurement period, an error message can be emitted in order to indicate a fault. If the voltage or derivative falls below the reference value, it is ensured that the magnetic field is sufficiently stable and measured values for a voltage which can be tapped off at measurement electrodes. | 10-22-2009 |
| 20090260453 | ELECTROMAGNETIC FLOWMETER - An electromagnetic flowmeter is equipped with a pipe unit including a pipe through which a fluid to be measured flows, a pair of electrodes adhered to the pipe, and substrate holders that retain substrates therein and which are disposed so as to cover the electrodes. In addition, the pipe unit is accommodated inside a body through a first opening, which opens on one side of the body. A solenoid unit including coils is installed on the pipe unit after being inserted into the interior of the body through first and second openings. | 10-22-2009 |
| 20090301218 | Magneto-Inductive Flow Measuring Device - The invention relates to an apparatus for measuring volume- or mass-flow of a medium ( | 12-10-2009 |
| 20090308175 | Magneto-Inductive Measuring Transducer - A measuring transducer including a measuring tube for conveying a fluid; a measuring electrode arrangement for registering electric voltages produced in the flowing fluid; as well as a magnetic field system situated externally on the measuring tube for producing a magnetic field at least partially passing through the measuring tube as well as the therein conveyed fluid during operation, for inducing an electric field in the flowing fluid, wherein the magnetic field system has at least one field coil, through which an electrical exciter current flows at least at times during operation. A coil holder is also including serving for holding the at least one field coil externally on the measuring tube, wherein the measuring tube and coil holder are connected joint-freely with one another, so that the coil holder is embodied as an integral component of the measuring tube. | 12-17-2009 |
| 20090308176 | ELECTROMAGNETIC FLOWMETER - To ensure, with ease, airtightness of an internal cavity when connecting a shielded lead lines to the outside. Tubes are installed on the portions of shields of lead lines positioned at through passages of a packing. An adhesive agent is caused to flow between the tubes and the shields, to bond therebetween. Doing so maintains an airtight seal through the adhesive agent (an adhesive agent that is caused to penetrate the spaces in the meshes of the shields, and hardened therein) between the shields and the inner peripheral surfaces of the tubes of the lead lines through the inner peripheral surfaces of the through passages of the packing and the outer peripheral surfaces of the tubes of the lead lines being tightly sealed. | 12-17-2009 |
| 20100011877 | CAPACITIVE ELECTROMAGNETIC FLOWMETER - A measuring pipe obtained by applying an insulating resin lining to the inside of a nonmagnetic pipe is employed. A through hole reaching the resin lining is made in the sidewall of the nonmagnetic pipe, and a signal electrode and a guard electrode are arranged in the through hole. The through hole is filled with an insulating vibration absorbing member so as to cover the periphery of the signal electrode and the guard electrode. A gelatinous substance of silicon resin, or the like, is employed as the vibration absorbing member, but liquid such as oil may be employed to liquid seal the signal electrode and the guard electrode in the through hole. Consequently, the electromagnetic flowmeter can be formed compact and its production is facilitated. | 01-21-2010 |
| 20100024567 | Method and apparatus for ascertaining volume- or mass-flow - A method for ascertaining volume- or mass-flow of a magnetically conductive medium flowing through a magneto-inductive, flow-measuring device having a predetermined nominal-diameter, wherein a periodically alternating, magnetic field is caused to pass through the flow-measuring device, the actual rise time, until a constant magnitude of the magnetic field is reached, is ascertained, the actual rise time is compared with a desired rise time ascertained in the case of flow of a reference medium through the flow-measuring device, and, on the basis of a difference between actual rise time and desired rise time, a measurement error is ascertained and the actually measured volume- or mass-flow of the magnetically conductive medium is so corrected, that the measurement error is canceled. | 02-04-2010 |
| 20100024568 | High pressure magnetic flowmeter with stress resistant electrode assembly - An electrode assembly comprises a housing, an electrode, a retainer and a potting material. The housing has a first end and a second end, with the electrode extending from the first end of the housing to a process flow. The retainer is positioned about the electrode, inside the housing. The potting material fills voids between the first end of the housing and the second end of the housing, such that the potting material limits displacement of the electrode when the electrode head is subject to pressure from the process flow. | 02-04-2010 |
| 20100024569 | MAGNETOINDUCTIVE FLOW METER HAVING AN ELECTROMAGNET UNIT WHICH INCLUDES COMBINED MAGNETIC FLUX-CONCENTRATING MEANS - A magnetoinductive flow meter has an electromagnet unit which is mounted on an outside periphery of a measuring tube. The electromagnet unit can include magnetic flux-concentrating means and electric coils for generating a magnetic field which is oriented substantially perpendicular to the direction of flow of a measuring medium which flows through the measuring tube. The magnetic flux-concentrating means of the electromagnet unit can include ferrite pole cores each respectively associated with each one of the electric coils. A single magnet yoke composed of an electric sheet material can be connected to each ferrite pole core. The magnet yoke can surround the electric coils jointly in a clip-like manner. | 02-04-2010 |
| 20100037702 | FLOWMETER - A flowmeter includes a measuring tube made of plastic or at least a plastic lining. The plastic measuring tube or the measuring tube internally lined with plastic is provided with a layer sequence of insulating plastic layers and conductive layers to comprehensively diagnose a state of performance of the flowmeter. | 02-18-2010 |
| 20100037703 | In-line measuring device with measuring tube and method for manufacture thereof - The measuring tube of the in-line measuring device is lined internally with a liner. The liner is made of a polyurethane produced using a catalyst that contains metal-organic compounds. The metals that are brought into the liner and remain there are chemically, especially atomically, bonded to carbon chains formed in the liner. The in-line measuring device is thus especially suited for measuring drinking water. | 02-18-2010 |
| 20100071476 | CAPACITIVE ELECTROMAGNETIC FLOWMETER - In a constant current circuit, a constant current is caused to flow through a resistor, thereby causing a constant voltage to occur across the resistor. This constant voltage is then superimposed on an output signal of an operational amplifier that is to be fed back to the drain of a field effect transistor, thereby maintaining the same potential in an AC manner between the output terminal of the operational amplifier and the drain of the field effect transistor. In this way, the gate and drain of the field effect transistor is caused to exhibit the same potential in an AC manner, so that no current will occur through the stray capacitance between the gate and drain of the field effect transistor. As a result, similarly to a case of using a feedback capacitor, the input impedance of the field effect transistor can be raised. | 03-25-2010 |
| 20100077865 | FLOWMETER, IN PARTICULAR INDUCTIVE FLOWMETER - A flowmeter, such as an inductive flowmeter, is disclosed which includes a measuring tube made of plastic or haivng at least one plastic lining. Exemplary embodiments can assess a measurement in a highly accurate and reliable manner, and measure further physical variables using a relatively simple design, wherein measuring devices can be directly connected to a flow measurement location. For example, at least one pressure and/or temperature and/or field sensor can be introduced into plastic material of the plastic measuring tube or the plastic lining. | 04-01-2010 |
| 20100089171 | APPARATUS FOR MEASURING VOLUME-OR MASS-FLOW OF A MEDUIM IN A PIPELINE - An apparatus for measuring volume- or mass-flow of a medium in a pipeline. Included is a measuring tube, through which the medium flows in the direction of the longitudinal axis of the measuring tube; a magnet system, which is embodied in such a manner, that it produces a magnetic field passing through the measuring tube essentially transversely to the longitudinal axis of the measuring tube; at least one measuring electrode coupled with the medium, which is arranged in a bore in the wall of the measuring tube in a region lying essentially perpendicular to the magnetic field. The measuring electrode has an elongated electrode shaft having a first widened end region, which is so dimensioned, that its diameter larger is than the diameter of the bore in the wall of the measuring tube, in which the measuring electrode is placed; and a control/evaluation unit, which, on the basis of a measurement voltage induced in the at least one measuring electrode, delivers information concerning volume- or mass-flow of the medium in the measuring tube. In the opposing, second, end region of the electrode shaft of the measuring electrode, at least one radial recess or at least one radial protrusion is arranged. Furthermore, a binding-element is provided, which is so embodied, that it fixes the measuring electrode in the bore of the measuring tube in the axial direction by engaging with the at least one radial recess or protrusion. | 04-15-2010 |
| 20100089172 | DEVICE AND METHOD FOR DETECTING A VOLUME WHILE RECEIVING AND/OR DISCHARGING A FLUID HAVING A GAS PORTION - The invention relates to a device for detecting an amount while receiving and/or discharging a fluid having a gas portion comprising a measurement line for conducting the fluid, a flow measuring unit for the fluid, which is in fluid connection with the measurement line, a degree of filling measuring unit for the fluid, which is in fluid connection with the measurement line and which comprises an electrode arrangement for determining electrical properties of the fluid present in the measurement line, and an evaluation unit for determining the fluid amount conveyed which is in a signal connection with the degree of filling measuring unit and the flow measuring unit. According to the invention it is provided that the electrode arrangement of the degree of filling measuring unit has a plurality of electrode plates which form a plate stack in the region of the measurement line. | 04-15-2010 |
| 20100101331 | ELECTROMAGNETIC FLOW METER - An electromagnetic flow meter is described having a pressure containing vessel or conduit through which the fluid to be metered is passed. The pressure containing vessel is formed of first and second sections which are made of respective materials having first and second magnetic permeabilities, such as stainless steel and carbon steel. A single magnetic field generating coil is provided adjacent the first section for generating a magnetic field across the pressure containing vessel. | 04-29-2010 |
| 20100126282 | ELECTROMAGNETIC FLOWMETER - An electromagnetic flowmeter for mass flow measurement of a flowing medium having a measuring tube ( | 05-27-2010 |
| 20100132478 | ELECTROMAGNET FLOWMETER - An electromagnetic flowmeter for mass flow measurement of a flowing medium having a measuring tube, a magnetic field generator for generating a magnetic field at least partially passing through the measuring tube, having two electrodes for tapping into a measurement voltage induced in the flowing medium and having a housing incorporating the measuring tube, the magnetic field generator and the electrodes, wherein the measuring tube has a cross section that varies along its length and the cross section in the mid-section of the measuring tube is smaller than at its ends, preferably the cross section of the measuring tube being rectangular in its mid-section, optionally also square, and wherein the housing preferably has a circular cross section. At least one reinforcement, preferably two, is provided in the mid-section of the measuring tube joining the measuring tube and the housing; | 06-03-2010 |
| 20100132479 | MAGNETIC-INDUCTIVE FLOWMETER - A magnetic-inductive flowmeter for measuring the rate of flow of a flowing medium, having a measurement line, a magnetic field generating means for generating a magnetic field which at least partially penetrates the measurement line, and two measurement electrodes, and an electrically insulating cover layer provided at least partially over the inside of the measurement line, the measurement electrodes being strip-shaped having a length in a peripheral direction of the measurement line of between about just under one fourth of the periphery of the measurement line to about just over half the periphery of the measurement line and being exposed to the interior of the measurement line to be in direct, contact with the flowing medium. The measurement electrodes can be made of the same material or a similar material as the cover layer, but having a much higher electrical conductivity than the material of the cover layer. | 06-03-2010 |
| 20100162827 | SEALED ELECTRODE ASSEMBLY FOR FLUID MEASUREMENTS - The present invention relates to a sealed electrode assembly for fluid measurements in a pressurized pipe having a wall, for providing contact between an electrode in contact with the fluid and the outside. The assembly comprises a conductive bolt extending from said electrode and through the wall, a lining in said pipe having an opening for said bolt and insulating the electrode from the wall, a sealing ring fitted around the bolt, a mantel surrounding said bolt having an recess partially accepting said sealing ring and provided a pressure on said sealing ring when pressed into said recess, and a tightening means on the outside of said wall for applying a pressure forcing the electrode toward the wall and thus a pressure between the lining, sealing ring and mantel. | 07-01-2010 |
| 20100192700 | MEASUREMENT APPARATUS - A measurement apparatus includes a measurement pipe to feed the measurement object, a cylindrical lining body lined on an inner wall surface of the measurement pipe, an electrode insertion hole formed by penetrating a pipe wall of the measurement pipe and the lining body, an electrode inserted in the pipe wall from inside of the measurement pipe with the electrode insertion hole serving as a central axis of the electrode, so as to allow one end portion of the electrode to contact the measurement object and an electrode fixing unit to be engaged with an opposite end portion of the electrode to fix the electrode by pulling the electrode toward an outer wall of the measurement pipe. | 08-05-2010 |
| 20100224008 | MAGNETIC FLOWMETER WITH COIL GROUND PATH DETECTION - A magnetic flow meter includes a flowtube arranged to receive a flow of process fluid and a coil proximate the flowtube arranged to apply a magnetic field to the process fluid. A sense electrode is arranged to sense a voltage potential in the flowtube in response to the applied magnetic field. The sensed voltage is indicative of flow rate of process fluid through the flowtube. Diagnostic circuitry provides an output related to an electrical path between the coil and electrical ground. | 09-09-2010 |
| 20100236337 | Apparatus for the Measurement of Liquid Flow Rates - A flow rate meter that includes a container of known and fixed volume. Electrodes, or sensors, are placed inside the container at several different heights. An electronic circuit uses the electrodes, or sensors, to measure the time it takes this container of known and fixed volume to fill a certain distance with water or water-based solution. The electronic circuit calculates the flow rate in engineering units from this elapsed time by knowing the volume of the container between the fixed electrodes. | 09-23-2010 |
| 20100275701 | MAGNETIC FLOWMETER FOR MEASURING FLOW - A magnetic flowmeter for measuring flow of a flow of process fluid, includes a flow tube arranged to receive the flow of process fluid therethrough. A magnetic drive coil proximate the flow tube is arranged to apply a magnetic field to the flow in response to a drive signal. At least one electrode is arranged to sense an electrical potential of the process fluid which related to the applied magnetic field and flow rate of the process fluid. Temperature measurement circuitry is coupled to the magnetic drive coil and is configured to provide a temperature output indicative of temperature of the drive coil based upon an electrical parameter of the drive coil. Flow measurement circuitry coupled to the at least one electrode is configured to provide a flow output based upon sensed electrical potential. | 11-04-2010 |
| 20100281996 | Magneto-Inductive Flow Measuring Device - A magneto-inductive flow measuring device, including: A measuring tube, through which a medium flows essentially directed along a measuring tube axis; a magnet arrangement, which produces an alternating magnetic field passing through the measuring tube essentially perpendicularly to the measuring tube axis; two measuring electrodes arranged essentially on a line directed essentially perpendicularly to the measuring tube axis and to the magnetic field; and a control/evaluation unit, which determines volume, or mass, flow of the medium through the measuring tube on the basis of a measurement voltage tapped on the measuring electrodes. In order to detect an error state at the flow measuring device early, the control/evaluation unit determines current, actual, settling time to reach a stable measurement state of the measuring device. The control/evaluation unit then compares the actual settling time with a desired settling time predetermined for the measuring device for reaching the stable measurement state and generates an error report, when the actual settling time is greater than the predetermined, desired, settling time. | 11-11-2010 |
| 20100288054 | SYSTEM TO DETECT POOR PROCESS GROUND CONNECTIONS - In a particular embodiment, a field device is disclosed that includes a pair of electrodes coupled to a process fluid and a diagnostic circuit coupled to the pair of electrodes to monitor a common mode signal. The diagnostic circuit is adapted to detect a poor ground connection associated with at least one electrode of the pair of electrodes based on line noise associated with the common mode signal. | 11-18-2010 |
| 20100300212 | ELECTRODE FOR A MAGNETO-INDUCTIVE FLOW MEASURING DEVICE - Electrode for a magneto-inductive flow measuring device for determining volume flow of an electrically conductive medium flowing through a measuring tube. The measuring tube, or at least the portion of it which comes in contact with the medium, is not electrically conductive; wherein the electrode exhibits an electrode shaft and an electrode head. The electrode head contacts the medium, and the electrode shaft exhibits frustoconically shaped sealing lips arranged one after the other in the direction of the longitudinal axis of the electrode. The electrode shaft is pressed into a bore in the wall of the measuring tube. The maximum diameter of the sealing lip nearest the electrode head is greater than the diameter of the bore, and, at least in a part of the electrode shaft, the maximum diameter of any following sealing lip is greater than the maximum diameter of the preceding sealing lip. | 12-02-2010 |
| 20100313675 | Magnetic flow meter and method of manufacturing a magnetic flow meter - A magnetic flow meter includes a first spud end, a second spud end, and a sensing area positioned between the first spud end and the second spud end. The sensing area has a wall thickness that is thinner than a thickness of the first spud end and the second spud end. The flow meter can be manufactured via molding while a plug is positioned in at least two holes of the magnetic flow meter. The flow meter can also be manufactured to have a near hermetic seal formed by inserting a flexible printed circuit board in a slit of a gasket and then either compressing a register cup surrounding the tube gasket or driving a pin into a center pin around which the tube gasket is positioned | 12-16-2010 |
| 20110011184 | METHOD FOR MEASURING THE VOLUME FLOW OF ELECTRICALLY CONDUCTIVE LIQUIDS THROUGH A VESSEL - It is described a method of measurement of the volume V | 01-20-2011 |
| 20110041620 | ELECTROMAGNETIC FLOWMETER - An electromagnetic flowmeter comprises an exiting coil, and a signal electrode having an electrode section, an axis portion, a first member which has elasticity, a second member which is harder than the first member, and a ring shape dividing wall which is harder than the second member, wherein the first and second members and the ring shape dividing wall are inserted between a rear face of the electrode section and an inner circumference face of the measuring pipe, the axis portion is projected to an outer circumference face of the measuring pipe through a through hole, and a fastening member is fastened to the axis portion which projects to the outer circumference face of the measuring pipe so that the first member is sandwiched between the rear face of the electrode section and the inner circumference face of the measuring pipe so as to be elastically deformed. | 02-24-2011 |
| 20110056305 | ELECTROMAGNETIC FLOWMETER - An electromagnetic flowmeter comprises a measuring pipe through which fluid to be measured flows, an electrode provided therein, an exciting unit, a signal line, a signal conversion unit that extracts a ∂A/∂t component that results from a change in the magnetic field from a resultant electromotive force of an electromotive force of the ∂A/∂t component; and an electromotive force of a v×B component that results from a flow speed of the fluid, wherein the resultant electromotive force is detected by the electrode and the signal line; and a flow rate output unit that eliminates, based on the extracted ∂A/∂t component, a variation factor as to a span that is a coefficient applied to a magnitude V of a flow speed of the v×B component in the resultant electromotive force so as to calculate a flow rate of the fluid. | 03-10-2011 |
| 20110056306 | STATE DETECTION DEVICE - A state detection device which detects parameters includes a measuring pipe, electrodes, an exciting coil that applies a magnetic field to the fluid, signal lines arranged at angle to the magnetic field such that an electromotive force is generated due to a change with passage of time in the magnetic field, and a state quantifying unit for extracting a ∂A/∂t component from resultant electromotive forces that are detected at the electrodes and the signal lines and are composed of an electromotive force of the ∂A/∂t component irrelevant to a flow velocity of the fluid and resulting from a change with passage of time in the magnetic field and an electromotive force of a v×B component relevant to the flow velocity of the fluid, and extracts a variation factor relevant to the parameter from the ∂A/∂t component to quantify the parameter based on the variation factor. | 03-10-2011 |
| 20110056307 | ELECTROMAGNETIC FLOWMETER - An electromagnetic flowmeter includes a measuring tube, electrodes, an exciting coil for applying, to a fluid, a time-changing magnetic field asymmetrical with respect to a plane PLN, a signal conversion unit which extracts a ∂A/∂t component, irrelevant to a fluid flow velocity, from a resultant electromotive force of an electromotive force based on the ∂A/∂t component and an electromotive force based on a v×B component originating from the flow velocity of the fluid, a flow rate output unit which removes a variation factor for a span as a coefficient applied to a magnitude V of a flow velocity of the v×B component in the resultant electromotive force, based on the extracted ∂A/∂t component, and calculates a flow rate of the fluid from a result obtained by removing the variation factor, and signal lines inclined with respect to a direction of the magnetic field in parallel with the plane PLN. | 03-10-2011 |
| 20110113895 | MAGNETO-INDUCTIVE FLOW MEASURING DEVICE WITH AN ELECTRODE ARRANGEMENT AND METHOD FOR ITS MANUFACTURE - A magneto-inductive flow measuring device having a measuring transducer, wherein the measuring transducer includes a measuring tube which can be flowed through by a measured substance, includes a magnet system for producing a magnetic field, and at has least one electrode inserted into the measuring tube for registering an electrical voltage. A securement device is provided, which serves for securing the electrode on the measuring tube, wherein the securement device is at least partially composed of plastic, and wherein the securement device is connected with the measuring tube by a plastics welding technology. As well as to a method for manufacture of a magneto-inductive flow measuring device, wherein the magneto-inductive flow measuring device has a measuring tube, wherein the measuring tube has at least one bore, wherein an electrode is inserted into the bore and wherein the electrode is secured to the measuring tube by means of a plastics welding technology. | 05-19-2011 |
| 20110174082 | METHOD OF MEASURING THE FLOW RATE OF A LIQUID FLOWING IN A FLUIDIC CHANNEL AND IMPLEMENTATION DEVICE - The present invention provides a method of measuring the flow rate of an electrically conductive liquid in laminar flow and to an implementation measurement device that are easy to implement, simple to produce and compact. For this purpose, the invention provides a device for measuring the flow rate, comprising: a channel ( | 07-21-2011 |
| 20110239778 | ELECTROMAGNETIC FLOW METER - With the non-magnetic-excitation period until a specific amount of time elapses from the commencement of the transition from the positive magnetic excitation period to the non-magnetic-excitation period defined as a first period T | 10-06-2011 |
| 20110314931 | ELECTROMAGNETIC FLOW METER - An apparatus is disclosed that includes a measuring pipe comprising an inner layer and a non-magnetic outer layer; an electric flow meter electrically connected to the measuring pipe and operable to measure the flow of a material within the pipe; an insert comprising non-magnetic material exposed to the interior space of the measuring pipe and in electrical connection with the outer layer of the measuring pipe, wherein the insert is operable to provide a common ground between the material within the pipe and the flow measuring device. | 12-29-2011 |
| 20120017698 | ELECTROMAGNETIC FLOWMETER - An electromagnetic flowmeter having a measuring tube, at least one magnetic device and at least two electrodes. The measuring tube having an inlet section with an inlet section terminal cross section, an outlet section with an outlet section terminal cross section, a recess formed between the inlet section and the outlet section with a recess cross section that is wider than the inlet section terminal cross section and the outlet section terminal cross section, and an internal coating positioned in the recess. The layer thickness of the internal coating is chosen to be appropriately thick in order to guarantee electrical insulation and to arrange the internal coating in the recess such that it is protected from damage by flowing measurement fluid. | 01-26-2012 |
| 20120031196 | Electromagnetic Flowmeter and Method Incorporating the same - An electromagnetic flowmeter for measuring the flow of a medium through a measuring pipe, wherein the flowmeter includes first and second electrodes arranged on opposite sides of the measuring pipe and coupled electrically or capacitively to the medium. A common mode test signal is passed to the first and second electrodes. A third electrode is provided at the top of the measuring pipe for receiving a response signal in response to the test signal passed to the first and second electrodes. The flowmeter also includes a detection device for detecting whether the third electrode is in contact with the medium based on the response signal. | 02-09-2012 |
| 20120031197 | Method and Electromagnetic Flowmeter Having Corrosion Protected Measuring Electrodes - A system and method for corrosion protection of measuring electrodes in electromagnetic flowmeters, wherein an electromagnetic flowmeter for measuring the flow of a medium through a measuring tube comprises first and second metallic measuring electrodes arranged on opposite sides of the measuring tube and in contact with the medium. The rate of flow of the medium in the measuring tube is measurable by output signals from the measuring electrodes representative of a potential difference between the measuring electrodes induced by the flow of the medium in the measuring tube in the presence of a magnetic field. | 02-09-2012 |
| 20120036941 | MAGNETO-INDUCTIVE FLOW MEASURING SYSTEM AND METHOD FOR OPERATING SUCH - A method for operating a magneto-inductive flow measuring system, wherein the magneto-inductive flow measuring system has a measuring tube, wherein measuring tube has a lumen for the conveying an at least slightly electrically conductive, measured substance, and wherein the magneto-inductive flow measuring system has a first and a second electrode electrically interacting with the measured substance. In a first diagnostic operation, an input voltage is applied between the first and second electrodes, wherein the input voltage produces an electrical current essentially within the lumen, and wherein the flow measuring system additionally has a third and a fourth electrode electrically interacting with the measured substance, wherein an output voltage falling between the third and fourth electrodes essentially due to the electrical current is determined, and wherein, by means of the output voltage, a state of the flow measuring system and/or a chemical and/or physical property of the measured substance is determined. | 02-16-2012 |
| 20120090403 | ELECTROMAGNETIC FLUID VELOCITY SENSOR WITH ADJUSTABLE ELECTRODES - An electromagnetic flowmeter includes at least one electromagnet coil arranged outside a liquid flow passage for generating an electromotive force in the liquid flow, and at least one pair of electrodes adjustably extending within the liquid flow for generating a velocity component signal. Preferably, two collinearly arranged coils are provided externally on opposite sides of the liquid flow passage, and a first set of two orthogonally-arranged pairs of coplanar electrodes are mounted on an adjustable probe strut that extends into the liquid flow. For greater accuracy, a Hall-effect device is provided on the probe. Additional sets of electrode pairs may be secured to the strut in planes parallel to the first electrode set. A second pair of collinear coils may be mounted externally of the liquid passage and orthogonally relative to the first coil pair, the two pairs of coils being alternately energized to produce three orthogonally arranged velocity components. | 04-19-2012 |
| 20120144929 | MAGNETIC INDUCTIVE FLOW METER - A magnetic-inductive flow meter is provided that includes a pressure-resistant plastic housing that includes an inlet port, an outlet port, and an intermediate measuring unit that has a duct wall and a measurement duct through which the fluid to be measured flows. Two opposite measuring electrodes are arranged in the duct wall and are oriented perpendicular to the magnet poles. Taking into account the maximum admissible pressure for the selected plastic, the duct wall is reduced to a minimum admissible thickness in the region of the magnet poles. An internal reinforcement cage that includes at least two internal transverse bulkheads and at least two internal longitudinal ribs stabilizes the duct wall. An external reinforcement cage that includes at least two first external longitudinal ribs retains and stabilizes the internal reinforcement cage and connects the measuring unit in a tension-proof manner to the inlet port and the outlet port. | 06-14-2012 |
| 20120297892 | MAGNETIC CIRCUIT DEVICE FOR A MAGNETIC-INDUCTIVE FLOW METER - A magnetic circuit device ( | 11-29-2012 |
| 20120304780 | MAGNETIC FLOWMETER - A magnetic flowmeter ( | 12-06-2012 |
| 20130086993 | Process for fabricating an electromagnetic flow meter - A process for fabricating an electromagnetic flow meter by encapsulating an electrode with a liquefied plastic. The electrode is fabricated out of an electrically conducting material and with at least a first circumferential indentation that runs orthogonal to the longitudinal expansion of the electrode. The electrode is positioned in a tool and encapsulated with a liquefied plastic, at least in sections, wherein the first indentation is encapsulated, at least in sections, with liquefied plastic. Also, an electromagnetic flow meter for measuring the volumetric flow or mass flow of a medium in a pipe, with a measurement tube, through which the medium flows in the direction of the longitudinal axis, and with a magnetic system that is so embodied as to produce a magnetic field that passes through the measurement tube and runs essentially orthogonal to the longitudinal axis of the measurement tube, and with at least one measurement electrode that couples to the medium, which is arranged essentially orthogonal to the region of the magnetic field in a bore hole in the wall of the measurement tube. | 04-11-2013 |
| 20130098166 | MEASURING DEVICE AND METHOD FOR MEASURING THE FLOW RATE OF A MEDIUM FLOWING THROUGH A MEASURING TUBE - A measuring device ( | 04-25-2013 |
| 20130145861 | MAGNETIC-INDUCTIVE FLOW METER - A magnetic-inductive flow meter including a measuring tube, a magnetic circuit device, and two electrodes for detecting a measurement voltage. The measuring tube includes an inflow section, a measurement section that adjoins an inflow section, and an outflow section that adjoins the measurement section. A flow cross section of the measurement section is smaller than an inlet-side flow cross section of the inflow section and smaller than an outlet-side flow cross section of the outflow section. The electrodes are located on or in opposite electrode sections in the measurement section. | 06-13-2013 |
| 20130263676 | MAGNETIC-INDUCTIVE FLOWMETER - A magnetic-inductive flowmeter ( | 10-10-2013 |
| 20140013858 | Measuring Tube Lining - A measuring tube for a lining of a measuring tube of a flow measuring device, wherein a nanoparticle is chemically bound to a polymer. | 01-16-2014 |
| 20140020477 | MAGNETIC-INDUCTIVE FLOWMETER - A magnetic-inductive flowmeter with a measuring tube having a measuring section, a magnetic field generating apparatus for generating a magnetic field in the measuring section of the measuring tube, and two electrodes which are located in the measuring section of the measuring tube for detecting the measurement voltage, the magnetic field generating apparatus having magnet coils which are located outside of the measuring section of the measuring tube and have a respective coil core. The cores of the magnet coils with reference to the magnetic flux make contact with two yoke elements via magnetic connection elements in a magnetically highly conductive manner and the yoke elements partially border the measuring section of the measuring tube. | 01-23-2014 |
| 20140033826 | MAGNETIC-INDUCTIVE FLOWMETER - A magnetic-inductive flowmeter with a nonconductive measuring tube, a magnetic field generating apparatus, two measuring electrodes conductively coupled to the medium for tapping a measuring-circuit voltage induced in the flowing medium, and with a measuring device for detecting an empty tube. Detection of an empty tube is obtained by the measuring device being an admittance measuring device having a detector, a counter-electrode, an ac signal source and an evaluation unit, the detector having an electrode connected to the ac signal source so that the electrode is exposed to an ac signal in the range of roughly 50 MHz-200 MHz and then an electrical field extends from the electrode into the medium. The electrode of the detector and the counter-electrode planiform shaped and are located essentially opposite one another on the outer surface of the measuring tube above and underneath the longitudinal axis of the measuring tube, respectively. | 02-06-2014 |
| 20140047927 | ELECTROMAGNETIC BOAT SPEEDOMETER HAVING REMOVABLE ELECTRODES - An electromagnetic speedometer for a boat having hull containing an opening includes an electromagnetic coil supported by the hull for establishing an electromagnetic field in the water adjacent the hull opening. A plurality of electrodes are supported by an arrangement that both closes the hull opening and supports the electrodes in engagement with the water adjacent the hull opening. The electrodes are connected by conductors with a velocity measuring circuit arranged above the hull interior surface. Preferably, the electrode support arrangement includes guide tubes supporting the electrodes for removal relative to the boat hull, thereby to permit cleaning of the electrodes. The guide tubes are closed by valves when the electrodes are removed from the assembly. In one embodiment, the electromagnetic coil is of the end-fired type, and in another embodiment, the electromagnetic coil is annular and is arranged above and below the hull. | 02-20-2014 |
| 20140053658 | MAGNETIC-INDUCTIVE FLOW METER AND METHOD FOR ITS PRODUCTION - A magnetic-inductive flow meter with at least one measurement tube, a magnetic field generating apparatus for generating a magnetic field which runs at least also perpendicular to the longitudinal axis of the measurement tube, and two measurement electrodes, the measurement tube having a metallic base body provided with a thermoplastic cover layer, a virtual connecting line of the two measurement electrodes running perpendicular to the direction of the magnetic field which is permeating the measurement tube perpendicular to the longitudinal axis of the measurement tube. The penetration sites of the measurement tube at which the measurement electrodes penetrate the measurement tube are easily made liquid-tight by a liquid-tight connection which has been produced by heating of the cover layer at the penetration sites for sealing the thermoplastic cover layer of the measurement tube to the measurement electrodes. | 02-27-2014 |
| 20140069206 | ANGLED INSERT MAGNETIC FLOW METER - An aspect provides a flow metering apparatus, including: a sensor insert body configured to enter a fluid conduit at an angle with respect to a wall of said fluid conduit; at least one electrode mounted on said sensor insert body; and a coil assembly including at least one magnetic coil in said sensor insert body. Other aspects are described and claimed. | 03-13-2014 |
| 20140083199 | MAGNETIC FLOWMETER WITH MULTIPLE COILS - A magnetic flowmeter for measuring a flow of a process fluid includes a flowtube arranged to receive the flow of the process fluid. First, second and third coils are arranged adjacent the flowtube. First and second electrodes are arranged to sense an electrical potential of the process fluid related to an applied magnetic field and a flow rate of the process fluid. The sensed electrical potential is used to calculate the flow rate of the process fluid through the flow tube. | 03-27-2014 |
| 20140083200 | INTEGRALLY MOLDED MAGNETIC FLOWMETER - A magnetic flowmeter for measuring flow rate of a process fluid, includes a magnetic coil arranged to apply a magnetic field to the process fluid. A pair of electrodes are electronically coupled to the process fluid and arranged to sense a voltage induced in the process fluid related to the applied magnetic field and the flow rate of the process fluid. A molded flow tube of a non-conductive material is arranged to receive a flow of the process fluid. The flow tube is molded around the magnetic coil and the pair of electrodes and is configured to support the magnetic coil and the pair of electrodes. Flow meter circuitry is configured to apply a current to the magnetic coil and receive the resultant voltage sensed by the pair of electrodes. | 03-27-2014 |
| 20140144246 | METHOD FOR ASCERTAINING FLOW OF A MEDIUM THROUGH A MEASURING TUBE - A method and flow measuring device for ascertaining flow of a medium through a measuring tube based on at least a first measurement signal, which depends at least on the flow velocity of the medium in the measuring tube, wherein the first measurement signal is registered, wherein an additional, second measurement signal is registered, which depends on the flow cross sectional area of the medium in the measuring tube and is independent of the flow velocity of the medium in the measuring tube, and wherein flow is ascertained as a function of the first and second measurement signals. | 05-29-2014 |
| 20140251025 | MAGNETIC FLOWMETER ASSEMBLY FRAMEWORK - A magnetic flowmeter includes a pipe section, coils for generating a magnetic field across the pipe section, and electrodes for sensing EMF induced by process fluid flow through the magnetic field. An assembly framework is mounted on the pipe. The coils, electrodes, and associated wiring of the flowmeter are located and secured in place by the framework. | 09-11-2014 |
| 20140260661 | MAGNETIC FLOWMETER WITH BONDED PTFE ELECTRODES - A magnetic flowmeter includes a pipe with a non-conductive PTFE liner, magnetic coils to generate a magnetic field, and electrodes in contact with the fluid on opposite sides of the pipe. The electrodes comprise conductive PTFE patch electrodes bonded to the non-conductive PTFE liner so that an inner end of each patch electrode is exposed to fluid flowing through the interior pipe and an outer end of each patch electrode is aligned with an electrode hole in the pipe. | 09-18-2014 |
| 20140260662 | MAGNETIC FLOWMETER WITH AUTOMATIC ADJUSTMENT BASED ON SENSED COMPLEX IMPEDANCE - A magnetic flowmeter comprises a pipe section for process flow, a coil for generating a magnetic field across the pipe section, a current source for energizing the coil to generate the magnetic field at a coil drive frequency, and electrodes for sensing voltage induced across the process flow by the magnetic field. A processor calculates a function of the sensed voltage and generates a flow output based on the function. The processor adjusts an operating parameter of the flowmeter, such as electrode voltage sampling period, the coil drive frequency, or a phase shift, as a function of a sensed electrode-to-electrode or electrode-to-ground complex impedance. | 09-18-2014 |
| 20140260663 | ELECTROMAGNETIC FLOW METER - In an electromagnetic flow meter, a signal amplifying circuit has an FET-input type differential amplifier wherein one input terminal is connected to a flow rate signal input terminal and the other input terminal is connected to a flow rate signal input terminal. An amplified output signal, which is obtained through performing differential amplification on the flow rate signals, is outputted from an output terminal. A fault detecting circuit detects a fault in the flow rate signal through comparing the electropotential of the amplified output signal to an upper limit reference electropotential and a lower limit reference electropotential. | 09-18-2014 |
| 20140290381 | INTEGRATED ENVIRONMENTAL SENSORS FOR HARSH ENVIRONMENT APPLICATIONS - Systems and methods in accordance with embodiments of the invention implement integrated environmental sensors that can operate in rigorous environments. In one embodiment, an integrated environmental sensor includes: at least one sensor and a substrate; where: the at least one sensor is disposed on the substrate; the at least one sensor can detect at least two environmental properties including: the surrounding temperature; the surrounding pressure; the flow rate of surrounding fluids; and the surrounding composition; the at least one sensor is capable of detection in an environment that has: a temperature greater than 150° C.; a pressure greater than 100 bar; and/or an inclusion of one of liquid hydrocarbons, H | 10-02-2014 |
| 20140298920 | ELECTROMAGNETIC FLOWMETER - An electromagnetic flowmeter includes a yoke of a solenoid unit, which is accommodated in the interior of a body. The yoke is U-shaped in cross section, with a pipe unit including a measurement conduit being arranged in the interior of the yoke. One end portion and another end portion of the measurement conduit are formed with true circular shapes in cross section, whereas an intermediate portion thereof between the one end portion and the other end portion is formed with an oval shape in cross section. On the measurement conduit, cross-sectional straight line portions thereof, which are formed in the intermediate portion, are arranged in a vertical direction. Coils of the solenoid unit and excitation plates are arranged in facing relation to the cross-sectional straight line portions. | 10-09-2014 |
| 20140366640 | Fluid Flow Measurement Sensor, Method, and Analysis - Fluid flow measurement sensor, method, and analysis are disclosed, which provide for the measurement and processing of array sensor data. Other embodiments provide for determination of flow rate from the array sensor data, and for diagnosis of a conduit wall anomaly based on anomaly shape. | 12-18-2014 |
| 20140366641 | FLOW SENSOR - Flow sensors for measuring the flow of an ion-containing fluid may be implemented using mechanical or electrical techniques. Mechanical flow sensors are have moving parts and therefore may be unreliable after some time and are expensive to manufacture. Hall-effect type flow sensors typically require a reversible magnetic field to compensate for electrochemical effects. A flow meter including such a sensor uses an electromagnet. A flow sensor ( | 12-18-2014 |
| 20150007670 | MAGNETO-INDUCTIVE FLOWMETER - A magneto-inductive flowmeter having at least one measuring tube for the flow of an electrically conducting medium, having at least one magnetic field generator for generating a preferably alternating magnetic field running at least also perpendicular to the longitudinal axis of the measuring tube, having at least two measuring electrodes—in particular in contact with the medium—and having a functional unit containing at least one evaluation unit and a method of operating same. The magneto-inductive flowmeter is user-friendly in a very particular manner, namely in that the functional unit has a request initiator that can be activated—by the user or the flowmeter itself—, a contacting receiver and an information sender and that by means of the request initiator, a third party can be prompted—by the user or the flowmeter itself—into contact—with the user or with the flowmeter itself. | 01-08-2015 |
| 20150020607 | MAGNETIC FLOWMETER - A magnetic flowmeter for measuring flow rate of a process fluid includes: a magnetic coil arranged to apply a magnetic field to the process fluid. A pair of electrodes electrically couple to the process fluid and are arranged to sense a voltage induced in the process fluid related to the applied magnetic field and the flow rate of the process fluid. A flow tube of a non-conductive material is arranged to receive a flow of the process fluid therethrough. The flow tube carries the magnetic coil and the pair of electrodes. Flow meter circuitry applies a current to the magnetic coil and receives the voltage sensed by the pair of electrodes. A magnetic field spreader is positioned proximate the magnetic coil and is arranged to spread the magnetic field emanating from the magnetic coil and direct the magnetic field into the flow tube. An exterior wrapper extends around the assembly and completes a magnetic circuit. | 01-22-2015 |
| 20150040682 | ELECTROMAGNETIC FLOW METER EXCITATION CIRCUIT AND ELECTROMAGNETIC FLOW METER - An excitation circuit, which is used in an electromagnetic flow meter, measures a flow rate value for a fluid, based on an electromotive force. An excitation coil, which is provided on an outside of a measurement tube, is supplied with an excitation current, where, in response, the electromotive force, which is perpendicular to a magnetic field of the excitation coil that is generated in the fluid within the measurement tube, is detected by a pair of electrodes provided on the measurement tube. | 02-12-2015 |
| 20150040683 | MAGNETIC-INDUCTIVE FLOW METER - The present disclosure relates to a magnetic-inductive flow meter having a measuring tube on which there is fitted a magnetic unit for generating a magnetic field, which is aligned substantially perpendicular to a flow direction of an electrically conductive measuring medium flowing through the measuring tube and whose measurement voltage induced in the measuring medium can be detected by at least two inserted measuring electrodes electrically insulated from the measuring tube. In order to avoid coupling interference voltages into the electrical electrodes, the first and the second electrode leads can be jointly twisted starting from the leadthrough as far as the first electrode, where the first electrode lead is electrically connected to the first electrode, and the second electrode is connected to a short-circuited conductor loop which encompasses the measuring tube and is connected to the second electrode lead at a location of the first electrode. | 02-12-2015 |
| 20150053019 | FLOW MEASURING DEVICE, MEASURING TUBE AS WELL AS METHOD FOR MANUFACTURE OF A FLOW MEASURING DEVICE - A flow measuring device having a line section serving for guiding a flowable medium, wherein the line section is formed at least partially by a cavity in a circuit board. | 02-26-2015 |
| 20150082905 | MAGNETIC FLOWMETER WITH SATURATION DETECTION AND/OR PREVENTION - A magnetic flowmeter for measuring flow of a process fluid in a pipe includes a magnetic coil disposed adjacent to the pipe configured to apply a magnetic field to the process fluid. First and second electrodes are disposed within the pipe and electrically coupled to the process fluid and configured to sense an electromotive force (EMF) induced in the process fluid due to the applied magnetic field and flow of the process fluid. Input circuitry is coupled to the first and second electrodes and provides an output related to the sensed EMF. Diagnostic circuitry coupled to the input circuitry is configured to identify a saturation related condition and responsively provide a diagnostic output. In another embodiment, saturation prevention circuitry prevents saturation of the input circuitry. | 03-26-2015 |
| 20150082906 | MAGNETIC FLOWMETER WITH POWER LIMIT AND OVER-CURRENT DETECTION - A magnetic flowmeter includes circuitry for sensing coil current, coil voltage, or coil resistance. Based on the sensed coil current, voltage, or resistance, a digital processor determines whether a power limit or a coil current limit is exceeded and either halts operation until it receives a new configuration with a new coil current setpoint, or determines a new coil current setpoint itself and adjusts the magnetic flowmeter to that new coil current setpoint. | 03-26-2015 |
| 20150082907 | INDUSTRIAL PROCESS FIELD DEVICE WITH LOW POWER OPTICAL ISOLATOR - An industrial process control field device includes a process variable transducer configured to sense or control a process variable. Field device circuitry is configured to couple to the process variable transducer and communicate information related to the process variable to another location. The field device circuitry includes an optical isolator having transmit circuitry on a first side of a galvanic isolation configured to transmit an optical signal which is pulsed on and off across the isolation. Receive circuitry is located on a second side of galvanic isolation and configured to receive the optical signal with an optical sensor. The optical sensor enters an “on” state when it receives a pulse and is otherwise in an “off” state. The receive circuitry provides a secondary side output based upon the received optical signal. The receive circuitry enters in a low power state when the optical sensor is in the “off” state. | 03-26-2015 |
| 20150082908 | MAGNETIC CORE CONFIGURATION FOR MAGNETIC FLOWMETERS - A flowtube assembly for a magnetic flowmeter is provided. The flowtube assembly includes a flowtube configured to receive a flow of process fluid therethrough. A magnetic core is mounted relative to the flowtube and includes a stem extending from the flowtube to a pair of arms. Each of the arms extends away from the stem. A spool having a plurality of magnetic windings is disposed about the stem and spaces the plurality of windings from the flowtube. | 03-26-2015 |
| 20150143918 | MAGNETICALLY INDUCTIVE FLOWMETER FOR DETERMINING THE FLOW RATE OF A FLUID FLOWING THROUGH A MEASURING TUBE - A magnetically inductive flow meter unit for determining a flow rate of a fluid flowing through a measuring tube, having a measuring tube having a measuring channel and a measuring sensor, which is disposed in the measuring channel and is oriented in alignment with the wall of the measuring tube, the measuring sensor including an electrode head, which is made of an electrically conductive material and has a fluid contact section, the electrode head being in direct contact with the fluid flowing through the measuring tube by means of the fluid contact section, the electrode head having an indentation on the side facing the fluid, which forms at least part of the fluid contact section. | 05-28-2015 |
| 20150300851 | MAGNETICALLY INDUCTIVE FLOW METER - A magnetically inductive flow meter including a first electrode arrangement for galvanically contact detection of an induced voltage dependent on the flow velocity of the medium as a first measurement signal, and a second electrode arrangement for capacitive detection of an induced voltage as a second measurement signal, wherein by determining and evaluating characteristic parameters of the first and second measurement signals, diagnostic messages on the status of the medium and/or the flow meter are obtained, such as the content of gas bubbles in the fluid, electrode corrosion, electrical conductivity of the medium, damage to the electrically insulating interior lining of the measuring tube, deposits on electrodes, magnetic interference fields, electrode short-circuits and/or the fill level of the measuring tube. | 10-22-2015 |
| 20150316399 | Pole Shoe and Mounting Clip - A pole shoe, especially for use with a system for magneto inductive flow measurement. The pole shoe is provided with at least one cable guiding system for guiding a cable through the pole shoe. A mounting clip for guiding cable in a pole shoe wherein the mounting clip includes at least one guiding opening for guiding at least one cable and at least one securement region for securing the mounting clip to the pole shoe. A magneto inductive flow measuring system, comprising at least two pole shoes and at least one coil core, wherein at least one of the pole shoes is provided with at least one cable guiding system for guiding a cable through the pole shoe. | 11-05-2015 |
| 20150323358 | METHOD FOR OPERATING A MAGNETIC-INDUCTIVE FLOWMETER - Method for operating for measuring the flow velocity of a flowing medium using a measuring device in which a magnetic field is induced in the flowing medium and on which a interference voltage is superimposed. During compensation measuring, a first magnetic flux density is generated in the medium and a first measuring voltage determined, a second magnetic flux density is generated in the medium and a second measured voltage determined, and a third magnetic flux density is generated in the medium and a third measured voltage determined. The flow velocity is determined from the first and second magnetic flux densities and measured voltages, and the interference voltage is determined form the third magnetic flux density and measured voltage and the determined flow velocity. Then, a fourth measured voltage is determined, and the flow velocity re-determined from the third magnetic flux density, the fourth measured voltage and the determined interference voltage. | 11-12-2015 |
| 20150377666 | MAGNETIC FLOWMETER FLOWTUBE ASSEMBLY WITH INTERCHANGEABLE LINER/ELECTRODE MODULE - A flowtube assembly for a magnetic flowmeter is provided. The flowtube assembly includes a tube extending from a first mounting flange to a second mounting flange. Each of the first and second mounting flanges has a pipe flange facing surface for mounting to a respective pipe flange. A coil chamber is disposed outside the tube, between the first and second mounting flanges. The coil chamber has at least one coil located inside that is configured to generate a magnetic field within the tube. A liner/electrode module is positioned within the tube and has a non-conductive liner, at least one electrode and at least one electrode conductor. The non-conductive liner extends from the first mounting flange to the second mounting flange. The at least one electrode is positioned in the non-conductive liner to interact with a conductive process fluid. The electrode conductor extends from the at least one electrode to an interconnect tab disposed adjacent the pipe facing flange surface of one of the first and second mounting flanges. The liner/electrode module is positionable within the tube. | 12-31-2015 |
| 20160011025 | FLOWMETER, INSULATION DETERIORATION DIAGNOSIS SYSTEM, AND INSULATION DETERIORATION DIAGNOSIS METHOD | 01-14-2016 |
| 20160069717 | MAGNETIC-INDUCTION FLOW METER, PARTICULARLY FOR HIGH PRESSURE APPLICATIONS - An assembly procedure for an electrode anchor, and a magnetic-induction flow meter, particularly for high pressure applications with medium pressures above 5.1 MPa (51 bar), having a measuring tube on which a multi-part electrode anchor for securing a measuring electrode is arranged. Included are: a) a coupling fitting, which is materially bonded to the measuring tube wherein the coupling fitting comprises a groove, or forms a groove together with the measuring tube; and b) a coupling insert for guiding and/or securing the measuring electrode the coupling insert being connected to the coupling fitting by way of a coupling. The coupling insert comprises anchoring wings which engage in the groove by a partial rotation and thereby effect the coupling. | 03-10-2016 |
| 20160084689 | MAGNETIC FLOWMETER FLOWTUBE ASSEMBLY WITH SPRING-ENERGIZED SEAL RINGS - A magnetic flowmeter flowtube assembly includes a conduit with a first end and a second end. A first neck flange is coupled to the first end of the conduit and has an inside diameter with a first notch extending radially outwardly therefrom. A second neck flange is coupled to the second end and has an inside diameter with a second notch extending radially outwardly therefrom. A fluoropolymer liner is disposed within and extends through the first neck flange, the conduit and the second neck flange. A pair of electrodes is mounted relative to the liner to measure a voltage induced within a process fluid flowing through the liner. A first spring-energized seal ring is disposed in the first notch and a second spring-energized seal ring disposed in the second notch. A method of sealing a magnetic flowmeter having a fluoropolymer liner is also provided. | 03-24-2016 |
| 20160084690 | MAGNETIC FLOWMETER FLOWTUBE ASSEMBLY WITH SPRING-ENERGIZED SEAL RINGS - A magnetic flowmeter flowtube assembly includes a conduit having a first end with a first flange and a second end with a second flange. A fluoropolymer liner is disposed within and extending through the first flange, the conduit and the second flange. A first lining protector is mounted to the first flange and a second lining protector mounter to the second flange. A first spring-energized seal is disposed between the first lining protector and the fluoropolymer liner. A second spring-energized seal is disposed between the second lining protector and the fluoropolymer liner. | 03-24-2016 |
| 20160091352 | MAGNETIC FLOWMETER WITH VAPOR PERMEATION SENSOR - A magnetic flowmeter includes a pipe having a non-conductive liner, afield coil adjacent to the pipe and configured to generate a magnetic field across a fluid flowing through the pipe, a first electrode located in a first tunnel passing through the pipe and into the liner, and a second electrode located in a second tunnel passing through the pipe and into the liner. The electrodes are configured to sense a voltage induced by the magnetic field across the fluid flowing through the pipe. The flowmeter also includes a sealed compartment attached to the pipe and enclosing the field coil, the first electrode, or the second electrode. The flowmeter further includes a vapor sensor within the sealed compartment configured to sense relative humidity in the compartment, and an electronics compartment having transmitter circuitry connected to the field coil, the first electrode, the second electrode, and the vapor sensor. | 03-31-2016 |
| 20160091353 | MAGNETIC FLOWMETER FLOWTUBE WITH PROCESS FLUID VENTING ASSEMBLY - A magnetic flowmeter flowtube assembly includes a conduit having an inside diameter, a fluoropolymer liner disposed within and extending through the conduit, and a pair of electrodes mounted relative to the liner to measure a voltage induced within a process fluid flowing through the liner. A venting assembly provides a process fluid vent path from the inside diameter of the conduit to an exterior of the flowtube assembly. | 03-31-2016 |
| 20160097662 | ELECTROMAGNETIC FLOWMETER WITH VOLTAGE-AMPLITUDE CONDUCTIVITY-SENSING FUNCTION FOR A LIQUID IN A TUBE - An electromagnetic flowmeter with voltage-amplitude conductivity-sensing function for a liquid in a tube includes a first microprocessor, a transducer, flow-sensing device, an exciting-current generating device, a voltage-amplitude conductivity-sensing device, and a switch. The transducer includes coils and sensing electrodes. The switch is electrically connected to the first microprocessor and the sensing electrode. The switch is selectively connected to the flow-sensing device or the voltage-amplitude conductivity-sensing device according to the signals sent from the microprocessor. The microprocessor makes the exciting-current generating device to generate an exciting current when the switch is connected to the flow-sensing device. The microprocessor makes the exciting-current generating device to stop generating exciting current and computing conductivity of liquid when the switch is electrically connected to the voltage-amplitude conductivity-sensing device. | 04-07-2016 |
| 20160116315 | DEVICE AND METHOD FOR MAGNETIC INDUCTIVE FLOW MEASUREMENT - The invention relates to a measuring device for measuring a flow rate of an electrically conducting medium in a volume which is permeated by a magnetic field, comprising a device for producing the magnetic field, at least one resistor, at least two electrodes, the at least two electrodes being electrically interconnected via the at least one resistor, and an evaluation unit for evaluating the measurement signal of the electrodes measured in parallel to the at least one resistor, and for calculating the flow rate. | 04-28-2016 |
| 20160161308 | Flow Measuring Device - In a flow measuring device having a measuring tube with a sensor arrangement and an evaluation unit for ascertaining a flow, a sensor arranged on or in a measuring tube having a tube wall of a metal support material and a first ply of a corrosion resistant material ply that protects the metal support material from corrosive measured media and is placed on an inner surface of the tube wall; or a tube wall of a corrosion resistant material, wherein in the measuring tube on the side of the first ply facing the medium or on the side of the measuring tube wall of the corrosion resistant, synthetic material facing the medium a ply or second ply is arranged for reducing mechanical loading, of the synthetic material by the measured medium, wherein the ply or second ply has a greater hardness than the first ply or the tube wall. | 06-09-2016 |
| 20160178418 | STROKE VOLUME DISPLACEMENT FLOW RATE SENSOR AND METHOD FOR REGULATING FLOW | 06-23-2016 |
| 20160178419 | MAGNETIC-INDUCTIVE FLOW METER AND METHOD FOR OPERATING A MAGNETIC-INDUCTIVE FLOW METER | 06-23-2016 |
| 20160195416 | ELECTROMAGNETIC FLOWMETER | 07-07-2016 |
| 20160195417 | FLOWMETER | 07-07-2016 |
| 20160202096 | MAGNETIC-INDUCTIVE FLOWMETER | 07-14-2016 |
| 20160202097 | MAGNETIC-INDUCTIVE FLOWMETER | 07-14-2016 |
| 20160377465 | MAGNETIC FLOWMETER FLOWTUBE ASSEMBLY WITH SPRING-ENERGIZED SEAL RINGS - A magnetic flowmeter flowtube assembly is provided. The assembly comprises a flowtube configured to receive a flow of process fluid. The assembly also comprises a fluoropolymer liner disposed within and extending through the flowtube. The assembly also comprises a plurality of electrodes assemblies disposed to measure a voltage induced within the process fluid. Each of the electrode assemblies includes a spring-energized seal disposed about each respective electrode. | 12-29-2016 |
| 20170234708 | ELECTROMAGNETIC FLOWMETER EMPTY PIPE DETECTION SYSTEM | 08-17-2017 |
