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| Number | Title | Issue Date |
| 7673523 | 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, ... | 03/09/2010 |
| 7665368 | Flow meter An electromagnetic flow meter for measuring flow rate of a fluid passing therethrough includes a conduit defining a fluid inlet, a fluid outlet and a measuring section positioned between the inlet and the outlet. The flow meter also includes a single coil for genera... | 02/23/2010 |
| 7650796 | Apparatus for measuring and/or monitoring flow of a medium An apparatus for measuring and/or monitoring the flow of a medium to be measured, which is flowing through a measuring tube in the direction of the longitudinal axis of the measuring tube. The apparatus includes: A magnet arrangement which produces a magnetic field ... | 01/26/2010 |
| 7650797 | 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 reinforc... | 01/26/2010 |
| 7647840 | Plastic ultrasonic measurement section and corresponding measurement method The present invention relates to a plastic ultrasonic measurement section (1) used for the flow measurement of fluids. It is equipped with two ultrasonic transmitting and receiving transducers (2, 3) spaced in the fluid flow direction and is characteri... | 01/19/2010 |
| 7628080 | Magnetic flow meter providing quasi-annular flow An in-line magnetic flow meter has an electrically insulated quasi-annular voltage sensing path defined between an internal wall of a meter body and an outer wall of an axially disposed hollow tube. Although less than 100% of the fluid flow passes through the sensin... | 12/08/2009 |
| 7621188 | Flow meter An electromagnetic flow meter for measuring flow rate of a fluid passing therethrough includes a conduit defining a fluid inlet, a fluid outlet and a measuring section positioned between the inlet and the outlet. The flow meter also includes a single coil for genera... | 11/24/2009 |
| 7607358 | Flow rate determination of a gas-liquid fluid mixture Methods and systems are described for determining a flow rate of a gas-liquid fluid mixture in a conduit. In the described systems and methods, the fluid mixture is conditioned so that the liquid in the mixture is separated from the gas in the mixture. Properties of... | 10/27/2009 |
| 7587947 | Magnetic flow meter with selective electrode positioning A magnetic flow meter has an electrically insulating member extending inward from an inner wall of a flow tube and extending along a selected axial portion of the tube. At least one pair of electrodes are placed adjacent opposite sides of the insulating member at a ... | 09/15/2009 |
| 7578202 | Pipeline with integrated flow meter The invention related to a flow meter for measuring the flow rate of a fluid flowing in a pipe according to the magnetic-inductive method. To this end, the flow meter comprises the pipe itself as well as an electrode arrangement integrated in the pipe and a magnetic... | 08/25/2009 |
| 7574924 | Magnetic flow meter A magnetic flow meter employs resonant circuit principles to increase the strength of the magnetic field to produce larger electrode difference potentials so that environmental influences have less effect on the operation of the flow meter. The flow meter may use an... | 08/18/2009 |
| 7571655 | Magnetic flow meter with buffering electrodes The flow responsive voltages detected at the electrodes of magnetic flow meters are typically reduced in magnitude by an electrical impedance shunting effect of the fluid on the electrodes. This problem is resolved by providing buffering electrodes located near, and... | 08/11/2009 |
| 7559257 | Magnetic flow probe with conductive tip Problems of instability and non-linearity in probe-type magnetic flow meters are ameliorated by either or both of a conductor coating connecting a tip portion of the probe with a supporting probe stem and either a shrouding arrangement or skewed end plates parallel ... | 07/14/2009 |
| 7552651 | Electromagnetic flowmeter having a lining member locked in the vicinity of the core An electromagnetic flowmeter includes: a measurement pipe to which a magnetic pole core is fixed while having a gap between a tip end portion of the magnetic pole core and the measurement pipe; a lining member for covering an inner wall surface of the measurement pi... | 06/30/2009 |
| 7540202 | Apparatus for measuring flow of a medium An apparatus for measuring flow of a medium through a measuring tube directed along a longitudinal axis of the measuring tube. The apparatus includes: A magnet arrangement, which produces an alternating magnetic field (φ1, φ2) at two location... | 06/02/2009 |
| 7523674 | In-line measuring device with measuring tube lined internally with polyurethane and method for manufacture thereof The measuring tube of an in-line measuring device is formed by means of a support tube and a liner internally lining the support tube. The liner adheres to the support tube, with interposition of a mediating primer. Both the primer and the liner are composed, at lea... | 04/28/2009 |
| 7523675 | In-line measuring device with measuring tube lined internally with polyurethane and method for manufacture thereof The measuring tube of the in-line measuring device is formed by means of a support tube and a liner internally lining the support tube. The liner adheres to the support tube, with interposition of a mediating primer. Both the primer and the liner are composed, at le... | 04/28/2009 |
| 7509877 | Electrode with electrode surface for magnetically inductive flow meter The invention relates to a special electrode surface for electrodes of a flow measuring device. In order to provide more measurement reliability for abrasive substances to be measured, for example in multiphase substances to be measured, according to the invention t... | 03/31/2009 |
| 7472605 | Magnetic transducer having electrodes with metal and a layer of a salt of that metal A magnetic transducer (109) for measuring the flow of a fluid (108) has electrodes (102) and an alternating magnetic field (107), an electrode (102) having lower noise energy at frequencies below 5 Hz than an electrode comprising c... | 01/06/2009 |
| 7448281 | Magnetic induction flowmeter having a metal measuring tube A magnetic induction flowmeter having a metal measuring tube (1), which can be inserted into a pipeline system via flanged sections (2a, 2b) at the ends, having at least two mutually opposite measuring electrodes (5a | 11/11/2008 |
| 7437945 | Magnetic flow probe Problems of instability and non-linearity in probe-type magnetic flow meters are ameliorated by either or both of a conductor coating connecting a tip portion of the probe with a supporting probe stem and flat end plates parallel to the flow direction that are arran... | 10/21/2008 |
| 7434478 | Electromagnetic flowmeter for applying a magnetic field and a plurality of frequency components to a fluid An electromagnetic flowmeter includes a measuring tube through which a fluid flows, electrodes which detect an electromotive force generated by a magnetic field applied to the fluid. An exciting coil applies, to the fluid, a magnetic field asymmetrical to a plane (P... | 10/14/2008 |
| 7426874 | Electromagnetic flowmeter with measuring tube An electromagnetic flowmeter includes a measuring tube through which a fluid to be measured flows, electrodes which detect an electromotive force generated by a magnetic field applied to the fluid. An exciting coil applies, to the fluid, a time-changing magnetic fie... | 09/23/2008 |
| 7421908 | Electromagnetic flow sensing apparatus and method An apparatus for sensing liquid flow rate comprises a conduit for conducting a flow of liquid through it and a flow sensor. The flow sensor includes a fixed portion attached to a sidewall of the conduit. The fixed portion has a pair of stationary electrodes position... | 09/09/2008 |
| 7416542 | Open circuit gravity-assisted uroflowmeter An open circuit gravity-assisted uroflowmeter has a urine collector having a generally open inlet in fluid communication with a sensing passage located at a lower elevation than the inlet, the sensing passage intersecting a magnetic field and having electrodes for d... | 08/26/2008 |
| 7412901 | Magnetic-inductive flow meter with a grounding disk A magnetic-inductive flow meter with a measuring tube (1) made of metal, which is flowed through by a medium (4) which has a minimum electrical conductivity and is permeated by a magnetic field generated by means of an arrangement of magnets (5)... | 08/19/2008 |
| 7404335 | Magnetoinductive flowmeter with galvanic measurement electrodes having a head section of a noble material A magnetoinductive flowmeter having a measurement tube (1), through which a flowable medium (3) flows, with a magnet unit (4a, 4b) which is arranged on the outside of the measurement tube (1) and produces a magnetic f... | 07/29/2008 |
| 7403862 | Method for operating a process-measuring device The process measuring device comprises a flow sensor having a measuring tube, a sensor arrangement for producing a measurement signal, and an evaluation and operating circuit. The method serves to compensate for the effects of interfering potentials which are caused... | 07/22/2008 |
| 7383739 | Magnetoinductive flowmeter having an electrode with an electroconductive diamond coating A magnetoinductive flowmeter includes a measuring tube containing an electrode that is provided with an electroconductive diamond coating, as a result of which the galvanic contact between the electrode and the medium that flows through the measuring tube is indirec... | 06/10/2008 |
| 7380468 | Device for integrating electrodes characterizing the flow of a multiphase fluid in a tubing The invention relates to a device for integrating electrodes (12) characterizing the flow of a multiphase fluid in a tubing (10). The device includes a tube section (14) made out of an electrically insulating material and bearing the electrodes ... | 06/03/2008 |
| 7369949 | Electromagnetic flowmeter An electromagnetic flowmeter includes a measuring tube, an electrode, an exciting unit, a signal conversion unit, and a flow rate calculating unit. The signal conversion unit extracts a ∂A/∂t component irrelevant to a flow velocity of the fluid and a v×B compon... | 05/06/2008 |
| 7362082 | Switch mode power supply with output voltage equalizer A switch mode power supply for feeding a single ended class D amplifier, having. two voltage sources (1, 2) is disclosed. The power supply comprises a voltage equalizer circuit including a coil (10) having a first terminal connected to said common poin... | 04/22/2008 |
| 7353119 | Reduced noise sensitivity in magnetic flowmeter A magnetic flowmeter for measuring flow of a process fluid includes a coil configured to apply a magnetic field to the process fluid. Electrodes are arranged to sense a fluid voltage signal related to the applied magnetic field and fluid flow. An analog to digital c... | 04/01/2008 |
| 7343817 | Magnetic flow meter with unibody construction and conductive polymer electrodes A magnetic flow metering device and method is disclosed for the measurement of corrosive flow streams. The device utilizes a unibody construction wherein the flow conduit is constructed entirely from an insulative, non-conducting material without resorting to a meta... | 03/18/2008 |
| 7340963 | Method for magneto-inductive determination of the flow rate of a medium The invention relates to a magneto-inductive method for determining the flow rate of a medium flowing through a measuring tube in the direction of the measuring tube axis. In order to be able to detect a coating formation on a measuring electrode early and with a hi... | 03/11/2008 |
| 7322231 | Flowmeter of a variable orifice type having a cleaning arrangement The invention relates to a flowmeter for regulating and monitoring the flow of sealing fluid to be conducted to a seal of a rotating shaft, the meter including a sealing fluid metering channel, a sealing fluid inlet, and a connection towards the seal for regulating ... | 01/29/2008 |
| 7321846 | Two-wire process control loop diagnostics A diagnostic device for coupling to a process control loop includes digital communication circuitry configured to receive a digital communication signal from the process control loop. The digital communication signal is a digitally modulated analog signal on the pro... | 01/22/2008 |
| 7318354 | Magnetoinductive flowmeter with a two-part insert A magnetoinductive flowmeter for measuring the flow rate of a moving medium includes a measuring tube conducting the medium, and an insert provided in the measuring tube. The insert consists of at least one first part and one second part which first part is introduc... | 01/15/2008 |
| 7310582 | Electromagnetic flow meter with reduced power consumption and reduced exciting current An electromagnetic flow meter of a switching control system in which a DC voltage is applied to an exciting coil via switching elements, a direction of an exciting current flowing through the exciting coil is switched over at a predetermined excitation timing, and t... | 12/18/2007 |
| 7302844 | Measurement element for determining a flow rate The flow rate of a fluid flowing around a measuring element is measured using a guide for guiding an electromagnetic wave along the longitudinal extension thereof and at least one electric heating element that is placed adjacent to the guide. The guide can be heated... | 12/04/2007 |