Inventors list

Assignees list

Classification tree browser

Top 100 Inventors

Top 100 Assignees


Electromagnetic induction (e.g., Faraday type)

Subclass of:

073 - Measuring and testing

073861000 - VOLUME OR RATE OF FLOW

073861080 - By measuring electrical or magnetic properties

Patent class list (only not empty are listed)

Deeper subclasses:

Class / Patent application numberDescriptionNumber of patent applications / Date published
073861120 With detecting electrodes 66
Entries
DocumentTitleDate
20100147085Pipeline or Measuring Tube Having at Least One Layer Which Insulates at Least in Certain Regions, and Process for the Production Thereof - A pipeline or measuring tube having at least one insulating layer, at least in certain regions, and comprising, manufactured in a primary shaping method, a tubular element, which has an otherwise closed structure and which has at least one region with an open-pored, cellular structure, wherein the material of the insulating layer, in the applying of the insulating layer, can penetrate into the pores of the open-pored, cellular structure of the tubular element and the insulating layer has on the side to be insulated a closed, homogeneous structure.06-17-2010
20090114036Use of Reed Switch and Magnet to Detect Movement of Faucet Handle - A flow sensing apparatus detects movement of a faucet handle of a faucet of a hot water container in order to detect flow from the hot water container. A reed switch and an associated magnet can be mounted to detect open and closed positions of the faucet handle to provide electronic logic information regarding the status of the faucet handle position as an indication of a flow condition to a control unit that controls heating of water in the hot water container.05-07-2009
20100107776Flow disturbance compensation for magnetic flowmeter - A transmitter for a magnetic flowmeter comprises a current source, memory and a signal processor. The current source energizes the flowmeter, such that the flowmeter generates an induced electromotive force in response to a process flow. The memory stores a flow configuration that describes a flow pipe disturbance in the process flow. The signal processor determines the flow rate as a function of the induced electromagnetic force, and as a further function of the flow configuration.05-06-2010
20130061685METHOD FOR OPERATION OF SEVERAL ADJACENT MAGNETIC-INDUCTIVE FLOW METERS - A method for operation of several adjacent magnetic-inductive flow meters, each of which has a measurement tube through which an electrically conductive medium flows, a magnetic field generating apparatus for permeating the medium with a magnetic field having a component perpendicular to the longitudinal axis of the measurement tube, and a measurement apparatus for measuring the voltage induced into the medium and for determining the flow rate from the induced voltage. Each flow meter has a control apparatus. In order to prevent variations of mutual influences on the flow rate measurements by the magnetic fields of adjacent flow meters, measured flow rate values from individual measurement processes and synchronous measurement processes are used to determine the mutual influences on the flow rate measurements, and influences that are free of variations are compensated by the magnetic fields of the adjacent flow meters being synchronized.03-14-2013
20100263454METHOD FOR MEASURING FLOW RATE FROM ELECTROMAGNETIC PUMP - A method achieving a small spatial restriction and capable of simply measuring with high precision a flow rate of a conductive fluid of an electromagnetic pump is provided. In particular, the method is suitable in measuring a flow amount of each electromagnetic pump in an electromagnetic pump unit where a plurality of electromagnetic pumps are arranged in parallel in one pump vessel. The method includes: measuring, by a magnetic sensor such as a magnetic flux density measuring coil 10-21-2010
20100300211ELECTROMAGNETIC FLOW METER - There is provided an electromagnetic flow meter that applies magnetic fields with a first frequency and a second frequency, to a fluid to be measured, calculates a first flow rate, calculates a second flow rate, performs low-pass filtering on the first flow rate to calculate a first low-pass filtered flow rate, and performs low-pass filtering on the second flow rate to calculate a second low-pass filtered flow rate, the electromagnetic flow meter including: an abnormality detecting unit that detects an abnormal state in which, the fluid is at non-full level on the basis of at least one of the first flow rate and the second flow rate; and an abnormality removing unit that removes the abnormal state on the basis of the first low-pass filtered flow rate and the second low-pass filtered flow rate, when the abnormality detecting unit does not determine that the fluid is in the abnormal state.12-02-2010
20100089170Coolant Flow Measurement Devices and Methods of Measuring Coolant Flow - A coolant flow measurement device includes a coolant flow circuit, a cooling system, a purge system, a variable speed fluid pump, a differential pressure gage and a primary flow meter. The coolant flow circuit may be attached to a an HVAC system of the vehicle such that coolant may be circulated through the HVAC system of the vehicle. The cooling system may cool the coolant in the coolant flow circuit. The purge system may be used to purge air from the coolant flow circuit. The variable speed fluid pump may be operable to balance the fluid pressure between the device inlet and the device outlet. The primary flow meter may be operable to measure the coolant flow in the coolant flow circuit. The differential pressure gage measures a pressure differential between the device inlet and the device outlet.04-15-2010
20100116065FLOWMETER - A flowmeter is provided to have a measuring tube, in or on which a measuring system is arranged. The flowmeter includes pinch seal sleeves which are arranged at both ends of the measuring tube for connecting the measuring tube to a process pipeline. According to an exemplary configuration, the pinch seal sleeves and/or the inner surfaces of the pinch seal sleeves are composed of an electrically insulating material and/or coated with an electrically insulating material. To make the device lighter in enable fast installation, the measuring tube can be made flangeless.05-13-2010
20090199655Method for Determining Working Point of a Magneto-Inductive Flow Measuring Device - A method for determining the working point of a magneto-inductive flow measuring device for detecting volume- or mass-flow of a medium flowing through a pipeline or measuring tube, wherein an alternating magnetic field produced by a coil arrangement is caused to pass through the pipeline or measuring tube, wherein a sensor-specific rise time (t08-13-2009
20090199654Method for operating a magnetic induction flowmeter - The invention relates to a method for operating an inductive flowmeter according to the preamble of patent claim 08-13-2009
20100229653Method And An Apparatus For Operating An Electromagnetic Valve Associated To A Gas Meter - An apparatus for operating an electromagnetic valve, associated to a gas meter, and operated to stop, or allow, a flow of gas through the meter (09-16-2010
20100101330METHOD FOR MEASURING THE FLOW VELOCITY OF A MEDIUM WHILE APPLYING A MAGNETIC FIELD TO THE MEASUREMENT VOLUME PUT THROUGH - A method is provided for measuring the mean flow velocity of an electrically conductive medium while applying a magnetic field to the measurement volume put through and decoupling an electric signal induced in the measurement volume. The fluctuating part of the electric signal, which is based on stochastic fluctuations of the flow velocity due to turbulent motion, is captured as a time-dependent wanted signal. By the weighted integration of the wanted signal the mean flow velocity over predefined time intervals is determined.04-29-2010
20110107845FLUID FLOW METER - A fluid flow meter comprising an outer casing having flow connections adapted to be connected so that in operation fluid to be measured flows through the casing, and a mechanical flow measuring unit (05-12-2011
20100294044ELECTROMAGNETIC FLOW METER - An electromagnetic flow meter provided with a resin lining portion in which resin is lined in a measuring pipe by pressure molding, including the measuring pipe to flow liquid to be measured, a lining locking frame provided in the measuring pipe composed of a cylindrical plate with openings and a plurality of divided belt-like ring plates, and the resin lining portion formed by embedding the lining locking frame. Here, in case of pressure molding the resin lining portion, the resin to be lined can be filled easily in gaps between the measuring pipe and the lining locking frame via gaps formed by a first gap provided between the inner face of the measuring pipe and the outer circumference face of the cylindrical plate with openings and second gaps of the adjacent divided belt-like ring plates in the outer circumference direction of the measuring pipe.11-25-2010
20100294043Apparatus for measuring volume-or mass-flow of a medium in a pipeline - An apparatus for measuring volume- or mass-flow of a medium in a pipeline. The apparatus includes: a measuring tube, through which medium flows in the direction of the measuring tube axis, wherein the measuring tube has, in stream direction of the medium, a first end region and a second end region; a magnet system, which a produces a magnetic field passing through the measuring tube essentially transversely to the measuring tube axis; at least one measuring electrode coupled with the medium and arranged in a region of the measuring tube lying essentially perpendicular to the magnetic field; and a control/evaluation unit, which delivers information concerning volume- or mass-flow of the medium in the measuring tube on the basis of a measurement voltage induced in the at least one measuring electrode. In order to keep costs for the magneto-inductive flow measuring device low, the measuring tube is embodied as one-piece and the first end region and the second end region of the measuring tube are flared.11-25-2010
20080250866Method For Monitoring Function of a Magneto-Inductive Flow Transducer - A method for monitoring a function of a magnetically inductive flow measuring sensor having a measuring tube and a magnetic field generator provided with at least two coils. The coils are used in the measuring mode for generating a magnetic field which penetrates the measuring tube. The method makes it possible to specifically monitor generation of the magnetic field, the coils being additionally used for function monitoring purposes. During function monitoring, at least one of the coils is used as a producer which produces a magnetic field that changes over time and penetrates at least one other coil, at least one of the other coils is used as a receiver via which a received signal induced by the magnetic field that changes over time can be derived, and functioning of the flow measuring sensor is monitored based on the received signal.10-16-2008
20100319463SUBSTANCE DETECTION DEVICE AND METHOD OF REMOVING BLOCKAGES - A substance detection device including a chemical substance analyzer, including, a conduit, and a membrane, wherein the membrane extends across a cross-section of the conduit, wherein the membrane is positioned to have one side and an analysis side opposite the one side, wherein the substance detection device is adapted to direct a portion of a chemical substance to the one side through the conduit, the substance detection device further including a particle separation apparatus, including a particle collection device having a collection chamber containing a first fluid and including an outlet, wherein the outlet is in fluid communication with the conduit such that particles directed through the outlet travel through the conduit and chemical substances which may be on those particles directed through the outlet are transferred to the membrane by interacting with the one side of the membrane.12-23-2010
20100180692COMPACT MAGNETIC INDUCTIVE FLOWMETER DEVICE - The invention relates to a compact magnetic inductive flowmeter device, comprising a measuring tube through which the medium for measuring flows, a housing within which the measuring tube is arranged, with an analysis device which analyses a flow measurement value for the medium recorded in the measuring tube and generates an analysed signal in a standardized form therefrom which contains information about the recorded measured values.07-22-2010
20090293635ELECTROMAGNETIC FLOW METER - Provided is an electromagnetic flow meter configured to measure a flow rate of a measurement target fluid. The electromagnetic flow meter includes: a measurement pipe having a hollow cylindrical shape and allowing the measurement target fluid to flow inside; flanges provided on both ends of the measurement pipe, respectively; and a lining portion. Each of the flanges includes a cut groove formed in a circumferential direction of the measurement pipe. The cut groove has a curved inner surface. The lining portion is formed so as to cover an inner surface of the measurement pipe and the cut grooves.12-03-2009
20110083514THROUGH-FLOW MEASURING DEVICE - Flow-meter device (04-14-2011
20110154911FLOW METER - A flow meter for measurement of a metered fluid has a sensor element that receives a flow input of a metered fluid and outputs a flow output of the metered fluid, and a battery element. The sensor element has an inductor element and a magnetic element coupled to the inductor element. In response to movement of the magnetic element relative to the inductor element caused by a fluid pressure differential of the metered fluid, the inductive value of the inductor element changes.06-30-2011
20120297891MAGNETO-INDUCTIVE, FLOW MEASURING DEVICE - A magneto-inductive, flow measuring device for measuring flow of a measured medium through a measuring tube, comprising: at least a first coil assembly for accommodating a coil core is arranged in a first passageway. The coil core has a broadened part and a first stop, which is arranged between the measuring tube and the coil. The broadened part of the coil core in the assembled state of the first coil assembly lies against the first stop of the coil body and prevents shifting of the coil core relative to the coil body along the longitudinal axis of the coil core in a first direction facing away from the measuring tube. The coil body has a second stop, wherein the coil core is secured to the coil body with a securement element (which, in the assembled state, lies against the second stop of the coil body under a prestress along the longitudinal axis of the coil core between the first stop and the second stop of the coil body.11-29-2012
20080250867Method for operating a magneto-inductive flow measuring device - A medium to be measured is allowed to flow through a measuring tube of a flow meter and a magnetic field passing at least sectionally with a time-varying intensity through the medium in the measuring tube is produced in such a manner that a measurement voltage is induced at least at times, especially in a clocked manner, in the medium. The measurement voltage induced in the medium is tapped, at least at times, by means of an electrode pair formed by first and second measuring electrodes for producing an analog measurement signal corresponding with the measurement voltage, and a flow-type of the medium located in the measuring tube, as determined by an instantaneous flow profile and/or an instantaneous composition of the flowing medium, is ascertained with application of a digital signal representing the at least one measurement signal. Starting on the basis that the measurement signal has a wanted-portion corresponding essentially with an instantaneous flow velocity of the medium and a noise portion influenced at least partially by existent disturbances in the flowing medium, ascertained are: a noise spectrum of the measurement signal corresponding with the noise portion; and, with application at least of a part of the noise spectrum, a state value signaling, at least qualitatively, at least one flow-type present in the measuring tube.10-16-2008
20130125665Measuring transducer as well as measuring system formed therewith - A measuring transducer comprises at least one measuring tube for carrying a flowing medium as well as a transducer housing mechanically coupled with the at least one measuring tube. The transducer housing includes: an inner shell forming a cavity accommodating the at least one measuring tube; and an outer cladding formed at least partially by means of yarn, namely cladding placed outside of the cavity and surrounding the inner shell.05-23-2013
20130139609VELOCIMETER AND METHOD FOR MEASURING THE SPEED OF FLOW OF AN ELECTRICALLY CONDUCTING FLUID - This velocimetre for measuring the speed of flow of an electrically conducting fluid comprises: —two sensors (06-06-2013
20080307892PREVENTING AN OVERLOADING OF THE ELECTRONIC EVALUATION SYSTEM DUE TO VOLTAGE SPIKES IN MAGNETO-INDUCTIVE FLOWMETERS - The disclosure relates to a circuit arrangement for preventing overloading of magneto-inductive flowmeters. The disclosure can protect the amplifiers which are connected downstream thereof or the electronic evaluation system from overloading. To this end, the signal input circuit is provided with additional voltage-limiting diodes disposed downstream of the impedance converters so that eventual voltage tips are prevented during modulation in the downstream amplifiers of the evaluation electronics.12-18-2008
20120000294FIELD DEVICE WITH INTERNAL BATTERY - A wave ring spring is provided between a top face of a battery case and an inner wall of an equipment case. A plurality of silicone rubber pieces is provided between a bottom face of the battery case and an inner wall of the equipment case. A plurality of elastic tabs is provided between the outer peripheral surfaces that connect between the top face and the bottom face of the battery case and inner walls of the equipment case. The elastic tabs are formed integrally with the outer peripheral surfaces of the battery case.01-05-2012
20120291562ELECTROMAGNETIC FLOW METER - An electromagnetic flow meter provided with a resin lining portion in which resin is lined in a measuring pipe by pressure molding, including the measuring pipe to flow liquid to be measured, a lining locking frame provided in the measuring pipe composed of a cylindrical plate with openings and a plurality of divided belt-like ring plates, and the resin lining portion formed by embedding the lining locking frame. Here, in case of pressure molding the resin lining portion, the resin to be lined can be filled easily in gaps between the measuring pipe and the lining locking frame via gaps formed by a first gap provided between the inner face of the measuring pipe and the outer circumference face of the cylindrical plate with openings and second gaps of the adjacent divided belt-like ring plates in the outer circumference direction of the measuring pipe.11-22-2012

Patent applications in class Electromagnetic induction (e.g., Faraday type)

Patent applications in all subclasses Electromagnetic induction (e.g., Faraday type)