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| Number | Title | Issue Date |
| 7814802 | Method of producing a connection between a measuring tube and at least one flange A method is disclosed for producing a connection between a measuring tube and at least one flange, e.g., in the case of a Coriolis mass flowmeter. In order to ensure reliable connection of the components in this case, the measuring tube can be inserted at one end ov... | 10/19/2010 |
| 7784359 | Coriolis effect mass flow meter and gyroscope A Coriolis effect device includes a housing defining an interior chamber having a central axis, an inlet, an outlet, a leading disc and a trailing disc. Each disc is supported for oscillatory movement within the interior chamber of the housing. The leading disc defi... | 08/31/2010 |
| 7694584 | Coriolis flow meter and method for determining a signal difference in cabling and first and second pickoff sensors A Coriolis flow meter includes first and second pickoff sensors, cabling coupled to the first and second pickoff sensors, and a signal injection device coupled to the cabling. The signal injection device is configured to generate one or more reference signals, with ... | 04/13/2010 |
| 7628082 | Microfluidic device and microtube therefor A microfluidic device for assessing properties of a fluid. The device utilizes a microtube capable of different vibration modes for promoting certain performance and/or structural aspects of the device. The microtube is supported by a base so as to be spaced apart f... | 12/08/2009 |
| 7363689 | Method for producing vibration-type measuring sensor This sensor, for a fluid and suitable for use in a pipeline at least temporarily containing the fluid flowing therethrough, has at least one curved measuring tube, which vibrates during operation and guides the fluid, and a housing enclosing the measuring tube. The ... | 04/29/2008 |
| 7340964 | Coriolis mass flow meter A Coriolis mass meter with two tube sections connected by a coupling extending between connection points of the tube sections wherein the coupling extends a distance between the connection points which exceeds the shortest perpendicular distance between the first an... | 03/11/2008 |
| 7299705 | Apparatus and method for augmenting a Coriolis meter A flow measuring system is provided that provides at least one of a compensated mass flow rate measurement and a compensated density measurement. The flow measuring system includes a gas volume fraction meter in combination with a coriolis meter. The GVF meter measu... | 11/27/2007 |
| 7231835 | Two-phase steam measurement system A steam measurement system includes a Coriolis flowmeter associated with a vibratable flowtube to receive a flow of wet steam. A first sensor is associated with the flowtube to relay information about a motion of the flowtube by way of a first sensor signal. A secon... | 06/19/2007 |
| 7228614 | Method of manufacturing a gas flow meter A gas flowmeter capable of reducing a secular change comprises a silicon semiconductor substrate formed with a cavity and a heat element formed above the cavity of the semiconductor substrate by way of an insulating film. The heat element is a silicon (Si) semicondu... | 06/12/2007 |
| 7207229 | Multiphase Coriolis flowmeter A flowmeter is disclosed. The flowmeter includes a vibratable flowtube, and a driver connected to the flowtube that is operable to impart motion to the flowtube. A sensor is connected to the flowtube and is operable to sense the motion of the flowtube and generate a... | 04/24/2007 |
| 7168328 | Measuring device for determining the mass rate of flow of a mass flow The invention relates to a measuring device for determining the mass rate of flow of a mass flow, especially for measuring a flow of bulk material. An impeller wheel (2), which is connected to the drive shaft (3) and which is driven at a constant rotat... | 01/30/2007 |
| 7152460 | Apparatus and method for compensating a coriolis meter A flow measuring system is provided that provides at least one of a compensated mass flow rate measurement and a compensated density measurement. The flow measuring system includes a gas volume fraction meter in combination with a coriolis meter. The GVF meter measu... | 12/26/2006 |
| 7134320 | Apparatus and method for providing a density measurement augmented for entrained gas A flow measuring system combines a density measuring device and a device for measuring the speed of sound (SOS) propagating through the fluid flow and/or for determining the gas volume fraction (GVF) of the flow. The GVF meter measures acoustic pressures propagating... | 11/14/2006 |
| 7134347 | Vibration-type measuring sensor This sensor (1), for a fluid and suitable for use in a pipeline at least temporarily containing the fluid flowing therethrough, has at least one curved measuring tube (4, 5), which vibrates during operation and guides the fluid, and a housing enclosing... | 11/14/2006 |
| 7127815 | Method of manufacturing a Coriolis flowmeter A method of manufacturing a Coriolis flowmeter for the measurement of a process material requiring an ultra high level of purity. This is achieved by forming the entire flow path of the Coriolis flow meter from a PFA plastic material that does not transfer ions from... | 10/31/2006 |
| 7121151 | Coriolis flowmeter comprising a straight tube The sensor includes at least one measuring tube for guiding a fluid The measuring tube an inlet end and an outlet end, and vibrating at least at times. The measuring tube communicates, by way of a first tube segment leading into the inlet end and a second tube segme... | 10/17/2006 |
| 7110899 | Phase measurement in measuring device Methods and apparatus for determining the phase of a signal in a measurement device having a digital signal processor are described. The signal is digitised and the digitised signal, or a signal derived therefrom, is numerically correlated with a numerically generat... | 09/19/2006 |
| 7077013 | Device for measuring the weight flow rate of a mass flow Device for measuring a mass flow according to the Coriolis principle comprises impeller driven at a constant speed, on which the flow of materials is fed, redirected and accelerated, and whereby the torque of the impeller is measured. The impeller is suspended on a ... | 07/18/2006 |
| 7038829 | Magnetic damping for MEMS rotational devices The effectiveness of magnetic damping on a MEMS device rotating in a high magnetic field or field gradient is described and analyzed for three preferred embodiments: (1) a conductive plate rotating about a single axis in a uniform magnetic field; (2) a conductive pl... | 05/02/2006 |
| 7013740 | Two-phase steam measurement system A steam measurement system includes a Coriolis flowmeter associated with a vibratable flowtube to receive a flow of wet steam. A first sensor is associated with the flowtube to relay information about a motion of the flowtube by way of a first sensor signal. A secon... | 03/21/2006 |
| 6952971 | Apparatus for measuring a mass flow The invention relates to a device for measuring a mass flow, comprising a measuring wheel (3) that is supported by a shaft (4) and that is driven and impinged axially by the mass flow. Said wheel deflects the flow, giving it both radial and tangential ... | 10/11/2005 |
| 6918307 | Device, system and method for on-line monitoring of flow quantities Measures of a torque and rotational speed of a pump or fan are obtained, from which a mechanical input power can be calculated. By further using predetermined relations between mechanical input power and flow rate through the pump or fan, a measure of the flow rate ... | 07/19/2005 |
| 6904667 | Apparatus for and a method for fabricating a coriolis flowmeter formed primarily of plastic An injection molding process for fabricating a Coriolis flowmeter. The process includes the steps forming a material flow path core using a core mold, placing the formed material flow path core into a wrapper mold having a cavity whose surfaces define the exterior s... | 06/14/2005 |
| 6834241 | Programmable coriolis flow meter electronics for outputting information over a single output port Flow meter electronics are described for providing a flow rate of a material flowing through a flow meter sensor of a Coriolis flow meter. The flow meter electronics comprise a processing system and a single output port. The processing system receives pick-off signa... | 12/21/2004 |
| 6805012 | Linear actuator The present invention relates to a linear actuator that maximizes the flux density in the air gap where work is to be done by increasing the lines of flux that are captured while keeping the cost of production and mass relatively low. This is achieved by an improved... | 10/19/2004 |
| 6802224 | Arch-shaped tube type coriolis meter and method for determining shape of the coriolis meter Each of two flow tubes assumes an arcuate shape consisting of a central arcuate segment and two linear segments located on opposite sides of the central arcuate segment. The inside diameter of the flow tubes and the linear distance between end points of each of the ... | 10/12/2004 |
| 6782325 | Programmable coriolis flow meter electronics for outputting information over a single output port Flow meter electronics are described for providing a flow rate of a material flowing through a flow meter sensor of a Coriolis flow meter. The flow meter electronics comprise a processing system and a single output port. The processing system receives pick-off signa... | 08/24/2004 |
| 6776052 | Coriolis flowmeter having a reduced flag dimension for handling large mass flows A Coriolis flowmeter sensor capable of handling large mass flow rates and having a reduced flag dimension. In order to have a reduced flag dimension, each of the flow tubes forms a semicircle between an inlet and an outlet. Brace bars, connected to the flow tubes pr... | 08/17/2004 |
| 6748813 | Coriolis mass flow controller A Coriolis mass flow sensor includes a flow tube, a light source positioned adjacent a first side of the flow tube and a light detector positioned adjacent a second side of the flow tube. A drive device is operatively situated relative to the flow tube for vibrating... | 06/15/2004 |
| 6745135 | Majority component proportion determination of a fluid using a coriolis flowmeter A system, method, and software are disclosed that determine a proportion of a majority component of a fluid that is flowing through a Coriolis flowmeter. Circuitry receives pickoff signals and a temperature signal from the Coriolis flowmeter responsive to the fluid ... | 06/01/2004 |
| 6718615 | Method of forming a coriolis flowmeter A method of forming a flowmeter having a case enclosing a single straight tube surrounded by a balance bar. The balance bar ends are coupled by means of a brace bar to the flow tube as well as by case connect links to the inner wall of the case. The flow tube projec... | 04/13/2004 |
| 6705171 | Torque measuring device for a device measuring the flow of material The invention relates to a device for measuring the flow of material, especially of a flow of bulk material, according to the Coriolis principle of measurement. The device has an impeller (2) which is driven by a motor (9) with a constant r.p.m. The fl... | 03/16/2004 |
| 6698644 | Use of silver-copper-palladium brazing alloys A single-tube Coriolis mass flow sensor includes a stainless steel sleeve having an unplated interior surface and a titanium member having a cylindrical end inserted into the stainless steel sleeve. The exterior surface of the titanium cylindrical end for... | 03/02/2004 |
| 6662120 | Excitation circuits for coriolis mass flowmeters Such an excitation circuit is intended for use in a Coriolis mass flowmeter which is connected to, is powered exclusively from, and outputs a measurement signal exclusively via, a two-wire process control loop. The Coriolis mass flowmeter has a vibrating ... | 12/09/2003 |
| 6650108 | System and method for monitoring the composition of a magnetorheological fluid A system and method for monitoring the composition of a magnetically permeable material, where the system comprises a first container containing a volume of magnetically permeable material; a flow path for flowing the magnetically permeable material out o... | 11/18/2003 |
| 6636815 | Majority component proportion determination of a fluid using a coriolis flowmeter A system, method, and software are disclosed that determine a proportion of a majority component of a fluid that is flowing through a Coriolis flowmeter. Circuitry receives pickoff signals and a temperature signal from the Coriolis flowmeter responsive to... | 10/21/2003 |
| 6606573 | Sensor apparatus, methods and computer program products employing vibrational shape control A parameter sensor including a conduit configured to contain a material is controlled. A first excitation applied to the conduit is determined. Motion of the conduit in response to the first excitation is determined. A second excitation to apply to the co... | 08/12/2003 |
| 6526839 | Coriolis mass flow controller and capacitive pick off sensor A capacitive pick off sensor for a mass flow measurement device is disclosed. The mass flow measurement device includes a flow sensor tube and a drive device for vibrating the flow sensor tube. The capacitive pick off sensor includes at least one conducti... | 03/04/2003 |
| 6520028 | Gyroscopic mass flowmeter Apparatus for and a method of operating a mass flowmeter having a first embodiment that uses gyroscopic forces to determine material flow information for a material flow. The interior of the flow tube defines a helix element that imparts a rotation to the... | 02/18/2003 |
| 6505135 | Initialization algorithm for drive control in a coriolis flowmeter A system for initializing parameters in a drive circuit. This invention applies initial drive signals to a drive circuit which causes said flow tube to vibrate. The configuration of the flow tube is then determined from pick-off signals received from pick... | 01/07/2003 |
