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| Number | Title | Issue Date |
| 7845239 | Disposable flow chamber electro-magnetic flow sensor The present invention is an assembly of a removable and preferably disposable electromagnetic flow chamber cassette adapted to be connected with a receiver having a coil and C-shaped core. An orientation slot in the C-shaped core and a supported insertion slot for e... | 12/07/2010 |
| 7757568 | Flowmeter for fine channel, analyzer using the same, and cartridge for analyzer A fine channel flowmeter A1 is provided for measuring the amount of a blood sample DS through a channel 10. The flowmeter includes at least two electrode groups 62Aa, 62Ab each including a pair of electrodes 62a, 62 | 07/20/2010 |
| 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 |
| 7415892 | Disposable flow chamber electro-magnetic flow sensor An electro-magnetic flow sensor, which is arranged for measuring a flow rate of liquid, includes a micro controller and a liquid flowing apparatus communicatively linking to the micro controller. The liquid flowing apparatus includes a flow chamber housing having a ... | 08/26/2008 |
| 7390307 | Volumetric physiological measuring system and method A system and method for measuring volumes and areas using electromagnetic induction techniques. A current is generated and fed into one of two coil assemblies to induce voltage into another coil assembly to provide accurate values for volume or area. ... | 06/24/2008 |
| 7377183 | Flow measuring device and manufacture method thereof A device for measuring a flow of a fluid is provided. The device includes a base, a channel, and at least two electronic circuits. The channel is mounted on the base, flowing the fluid therein and having at least two sections, and the at least two electronic circuit... | 05/27/2008 |
| 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 |
| 7254518 | Pressure transmitter with diagnostics In one embodiment, a pressure transmitter is provided which diagnoses the condition of a primary element and/or an impulse line which connects to a pressure sensor. A difference circuit coupled to the pressure sensor has a difference output which represents the sens... | 08/07/2007 |
| 7093500 | Tunable empty pipe function An electromagnetic flowmeter for measuring a flow rate of a fluid in a pipe is described. A pipe carries a fluid. A magnetic coil is disposed adjacent to the pipe for inducing a magnetic flux in the fluid. A plurality of electrodes are disposed within the pipe, and ... | 08/22/2006 |
| 7085610 | Root cause diagnostics An industrial process diagnostic apparatus is provided which can identify a source, or “root cause”, of an aberration in an industrial process. A plurality of process configuration models are provided which each represent a physical (or actual) implementation of... | 08/01/2006 |
| 7079958 | Method for operating a process-measuring device The process measuring device includes 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 ... | 07/18/2006 |
| 7070324 | Method and device for system and/or process monitoring The invention relates to a method and to a device for system- and/or process-monitoring in connection with a measurement apparatus that determines/monitors at least one process parameter of a medium. The method and device enable statements to be made regarding the p... | 07/04/2006 |
| 7063043 | Milk flow meter for a milking system having a substantially stable vacuum level and method for using same A milk flow device which includes a conduit for transporting a substantially continuous milk flow varying in height up to a maximum height wherein the maximum height is less than a fluid height which would occlude the conduit and interrupt the vacuum level is shown.... | 06/20/2006 |
| 7055396 | Sensor assembly for magnetic flowmeter and method of manufacture A sensor assembly for a magnetic flowmeter is provided that is cost-effective to manufacture, while incorporating an effective seal against leakage and enabling precise positioning of electrodes. The sensor assembly includes an electrode assembly and a plastic housi... | 06/06/2006 |
| 7046180 | Analog-to-digital converter with range error detection A circuit includes a multiplexer, an analog-to-digital converter, and a processor that compares a sequence of digital outputs from the analog-to-digital converter to a sequence of normal ranges that correspond with the digital outputs in order to provide an error ou... | 05/16/2006 |
| 7018800 | Process device with quiescent current diagnostics A process device for use on an industrial process control system includes a quiescent current sensor configured to sense quiescent current draw of the process device. Diagnostic circuitry determines a diagnostic condition of the process device as a function of the s... | 03/28/2006 |
| 7010459 | Process device diagnostics using process variable sensor signal A diagnostic device for use in a process control system receives a sensor signal related to a process variable of a process sensed by a process variable sensor. A signal preprocessor provides a sensor power signal output as a function of a frequency distribution of ... | 03/07/2006 |
| 6970003 | Electronics board life prediction of microprocessor-based transmitters A field device includes circuitry to successively measure a parameter related to current drawn by electronics of the field device. The measurements are provided to a prediction engine which calculates a diagnostic output based upon the plurality of current-related m... | 11/29/2005 |
| 6920799 | Magnetic flow meter with reference electrode An magnetic flow meter is provided which includes a reference electrode configured to electrically couple process fluid flowing within a flowtube of the flow meter. The reference electrode is adapted to measure potential of the process fluid. A current limiter is co... | 07/26/2005 |
| 6917205 | Microwave-resonator and measuring device A resonator device for testing a material quantity in the tobacco-processing industry for existence of at least one foreign substance and/or for detecting at least one of weight, density and humidity level of the material includes a resonator housing having a throug... | 07/12/2005 |
| 6907383 | Flow diagnostic system A flow diagnostic system for a flow sensing element and impulse lines. A pressure transmitter coupled to the impulse lines provides digital pressure data to a control system. The control system provides the pressure data and real time clock readings to a diagnostic ... | 06/14/2005 |
| 6803775 | Fuel quality sensor assembly and method of use A sensing element (2) for sensing a fluid (50) composition and a method of using the sensing element (2) are provided. The sensing element (2) includes an electrode base (36) having a first electrode (4) and a second electro... | 10/12/2004 |
| 6799474 | Milk flow meter for a milking system having a substantially stable vacuum level and method for using same A milk flow device which includes a conduit for transporting a substantially continuous milk flow varying in height up to a maximum height wherein the maximum height is less than a fluid height which would occlude the conduit and interrupt the vacuum level is shown.... | 10/05/2004 |
| 6779407 | Fluid flow measuring device and method of manufacturing thereof In a borehole logging tool, the flow of conductive fluid into or out of a wellbore at the wellbore wall is detected and measured with a sensor loop proximate the borehole inner wall. The sensor loop includes a series of contiguous sensors that act as electromagnetic... | 08/24/2004 |
| 6752026 | Annular void electromagnetic flowmeter The Annular Void Electromagnetic Flowmeter [AVEF] is a flowmeter in which fluid flow rate of compressible or incompressible fluid is determined by measuring a fluid-mechanical-electrical response that is dependent upon an electromagnetic field. The construction of t... | 06/22/2004 |
| 6722208 | Milk flow meter for a milking system having a substantially stable vacuum level and method for using same A milk flow device which includes a conduit for transporting a substantially continuous milk flow varying in height up to a maximum height wherein the maximum height is less than a fluid height which would occlude the conduit and interrupt the vacuum level. A first ... | 04/20/2004 |
| 6626048 | Magnetic flow meter A magnetic flow meter includes a cylindrical vessel within which electrodes are placed directly opposite each other about a magnetically permeable core. In that way, two flow channels are obtained in the vessel. A common magnetic field is applied across b... | 09/30/2003 |
| 6539811 | Apparatus for measuring the flow of a medium to be measured through a measuring tube The invention relates to an apparatus for measuring the flow of a medium (11) to be measured which flows through a measuring tube (2) in the direction of the measuring tube axis (3), having a magnetic arrangement which generates a magnetic field which per... | 04/01/2003 |
| 6539981 | Flow tube having a bonding layer with a fluoropolymer lining A flow tube has a metal outer tube and is lined with an ETFE fluoropolymer that is resistant to corrosive chemicals and mechanical damage even at high temperatures. The inner surface of the metal tube is coated with a bonding metal that can be securely bo... | 04/01/2003 |
| 6530285 | Magnetic flow sensor probe A flow sensing head for a magnetic flow sensor may be configured as an insertion probe having one or more flow passageways oriented perpendicular to the magnetic axis of an electromagnet. When a conductive liquid flows through the passageway a voltage is ... | 03/11/2003 |
| 6435036 | Vortex flow meter A vortex flow meter includes a measuring tube in which a fluid is carried, a vortex generator provided in the measuring tube for developing a Karman vortex in the fluid, a magnetic field generator generating a magnetic field across the measuring tube down... | 08/20/2002 |
| 6321766 | Electromagnetic flow control valve for a liquid metal with built-in flow measurement An electromagnetic flow control valve for an electrically conductive liquid having a plurality of coils and yokes surrounding a non-metallic, such as alumina, tube through which an electrically conducting liquid, such as liquid metal, flows. Direct curren... | 11/27/2001 |
| 6094992 | Method for electromagnetic flow measurement and a corresponding flowmeter This electromagnetic flow measuring method and the corresponding flowmeter serve to improve the measuring accuracy in the range of measuring errors below 1% in conjunction with acceptable costs. The meter includes a tube (1), in which the fluid to be meas... | 08/01/2000 |
| 6085599 | Magnetic flow sensor Sensors for measuring the flow rate of fluids flowing through or around a chamber. The chamber is formed using electrically insulating material through which there is an orthogonal alternating magnetic field provided by a mechanically repositioned permane... | 07/11/2000 |
| 5948995 | Cross correlation fluid flow meter A cross correlation fluid flow meter including a body having first and second sensor devices positioned such that in use they are spaced apart a known distance in the direction of fluid flow, each sensor device having a signal transmitter and a signal rec... | 09/07/1999 |
| 5847287 | Electromagnetic flowmeter with self-sealing electrodes An electromagnetic flowmeter comprising a non-conductive body having a central channel, first and second diametrically opposed cavities extending from the channel, and third and fourth cavities positioned, relative to liquid flow through the central chann... | 12/08/1998 |
| 5792964 | Milking system including a milk quantity meter A quantity meter for determining the quantity of liquid flowing through a line is provided with at least two electrically conducting elements arranged in the line spaced from each other and being in communication with an electronic circuit. This electroni... | 08/11/1998 |
| 5767418 | Electromagnetic flowmeter with single bobbin coil An electromagnetic flowmeter having a single bobbin coil for developing a magnetic field through which a liquid passes. The single bobbin coil is a part of an electromagnet unit which also includes first and second pole pieces which are disposed symmetric... | 06/16/1998 |
| 5728945 | Electromagnetic flowmeter with internally placed, laminar flow supporting, grounding electrodes An electromagnetic flowmeter comprising a body having a central channel having a measuring region, an inlet region and an outlet region. Relative to liquid flow through the central channel, the inlet region is upstream of the measuring region, and the out... | 03/17/1998 |
| 5691484 | Magnetic flow sensor Sensors for measuring the flow rate of fluids flowing through a chamber. The chamber is formed using electrically insulating material through which there is an orthogonal alternating magnetic field provided by a mechanically repositioned permanent magnet ... | 11/25/1997 |
