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7628084 |
Compensation method and apparatus for a coriolis flow meter
Method and apparatus ( 121 ) for providing temperature flow rate compensation for a Coriolis flow meter. The described compensation compensates both flow calibration factor and the nominal time...
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7614312 |
Multi-phase coriolis flowmeter
A Coriolis flowmeter is configured to determine a first property of a multi-phase fluid. A flow model is configured to determine a second property of the multi-phase fluid. A determination system...
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7617055 |
Wet gas measurement
A multi-phase process fluid is passed through a vibratable flowtube. Motion is induced in the vibratable flowtube. A first apparent property of the multi-phase process fluid based on the motion of...
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7610159 |
Multivariable mass flow rate transmitter system and flow rate setting tool
A system includes a multivariable mass flow rate transmitter having a mass flow rate computation section, and a flow rate setting tool which performs setup of the mass flow rate computation...
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7597008 |
Method and apparatus for determining flow pressure using density information
A method and apparatus is disclosed that determines the density ( 602 ) of a material flowing through a Coriolis flow meter. The density is used to infer the pressure ( 608 ) of the flowing...
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7571062 |
Digital flowmeter
A controller for a flowmeter includes an input module operable to receive a sensor signal from a sensor connected to a vibratable flowtube. The sensor signal is related to a fluid flow through the...
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7555397 |
Coriolis mass flow meter and method for compensation of transmission errors of its input circuit
A Coriolis mass flow meter and method for compensation of transmission errors of its input circuit, wherein a high accuracy of measurement is achievable by determining the transmission error of the...
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7505854 |
Startup techniques for a digital flowmeter
Startup and operational techniques for a digital flowmeter are described. The techniques select an optimal mode of operation for the digital flowmeter, depending on a current environment of the...
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7503226 |
Method of and apparatus for assessing the effect of a conduit section on flow characteristics of a first fluid
A method of assessing the effect of a conduit section ( 11 ) on flow characteristics of a first fluid in a first conduit system ( 1 ). A first fluid is caused to flow through the first conduit...
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7469600 |
Measuring and operational circuit for a coriolis-mass flow meter comprising three measuring channels
In a method for determining mass-flow with the aid of a Coriolis mass-flow meter in which mass-flow ({dot over (m)}) is won from the phase difference of two sensor signals X 17 , X 18 , three...
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7440873 |
Apparatus and method of processing data to improve the performance of a flow monitoring system
An apparatus and method of processing flow meter data to filter out signal noise is provided. The method includes defining the flow meter data as a k-ω plane, wherein the k-ω plane includes a...
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7421350 |
Meter electronics and method for detecting a residual material in a flow meter assembly
A meter electronics and method for detecting a residual material in a flow meter assembly are provided according to the invention. The meter electronics includes a processing system adapted to...
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7404336 |
Correcting for two-phase flow in a digital flowmeter
A flowmeter is disclosed. The flowmeter includes a vibratable conduit, and a driver connected to the conduit that is operable to impart motion to the conduit. A sensor is connected to the conduit...
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7337676 |
Device for measuring the mass rate of flow
A mass flow rate measurement device which works according to the coriolis principle, and has two measurement tubes ( 1 ) and a vibration converter. It is provided that a carrier ( 2 ) is mounted on...
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RE40095 |
Correction of coriolis flowmeter measurements due to multiphase flows
A Coriolis flowmeter is operable as a vibrating tube densitometer where a flowtube is driven to vibrate at a fundamental frequency from which density of the material flowing through the flowtube...
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7296484 |
In-line measuring device
An inline measuring device includes a vibration-type measurement pickup having at least one measuring tube, which has a medium to be measured flowing through it during operation. The measuring tube...
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7293470 |
Two-wire bus instrument
A two-wire bus instrument ( 500 ) adapted for use with a two-wire bus ( 308 ) is provided according to an embodiment of the invention. An instrument element ( 304 ) receives a third current and...
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7289917 |
Coriolis flow meter and method for flow measurement
A Coriolis flow meter, which includes: at least one measuring tube, which is excited to oscillate during measurement operation, and through which a medium flows, first and second sensors for...
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7272512 |
Flow sensor signal conversion
A method of obtaining at least one representation of a characteristic function of a sensor from a test fluid during calibration of the sensor according to a sensor model having a transfer function...
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7257495 |
Flow meter filter system and method
A flow meter filter system ( 200 ) according to an embodiment of the invention includes a noise pass filter ( 203 ) configured to receive a first version of a flow meter signal and filter out the...
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7216550 |
Device and method for operating a Coriolis mass flowmeter
A device and a method for operating a Coriolis mass flowmeter with at least one measuring pipe, wherein at least two operative assemblies, which can respectively be operated as an exciter...
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7188534 |
Multi-phase 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...
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7171859 |
Process meter for measuring at least one physical process variable of a medium stored in a container or flowing in a line
A process meter for measuring at least one physical process variable of a medium stored in a container or flowing in a line, comprising: a transducer including a sensor arrangement providing...
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7162931 |
Apparatus for controlling temperature of an inline measuring device
The apparatus includes at least one heat exchanger secured on an inline measuring device. Temperature-control fluid flows through a heat exchanger, at least at times during operation, for the...
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7146280 |
Startup and operational techniques for a digital flowmeter
Startup and operational techniques for a digital flowmeter are described. The techniques select an optimal mode of operation for the digital flowmeter, depending on a current environment of the...
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7136761 |
Digital flowmeter
A controller for a flowmeter includes an input module operable to receive a sensor signal from a sensor connected to a vibratable flowtube. The sensor signal is related to a fluid flow through the...
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7124646 |
Correcting for two-phase flow in a digital flowmeter
A flowmeter is disclosed. The flowmeter includes a vibratable conduit, and a driver connected to the conduit that is operable to impart motion to the conduit. A sensor is connected to the conduit...
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7100456 |
Magnetic circuit arrangement for a sensor having electrical leads attached to the mounting support
A mount for electrical leads to a vibration-type sensor and/or for coils on a vibration-type sensor. The mount includes at least one resilient first arm attached to a first sensing tube of the...
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7059199 |
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...
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6868740 |
Mass flow rate measuring device and process for measuring the pressure with a mass flow rate measuring device
A mass flow rate measuring process measures the pressure on a mass flow rate measuring device. The mass flow rate measuring device works on the Coriolis principle and has a measuring line whereby a...
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6807868 |
Coriolis mass flow meter
Two flow tubes 1 and 2 of a Coriolis mass flow meter are formed into an arch shape, with the tubes bent in only one direction. Entry-side and exit-side manifolds 25 are smoothly bent from the...
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6799476 |
Mass flowmeter and method for operating a mass flowmeter
A mass flowmeter and a method for operating a mass flowmeter is based on the Coriolis principle and incorporates a Coriolis measuring tube, an oscillator associated with and stimulating said...
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6769301 |
Coriolis mass flow controller
A Coriolis mass flow sensor includes a flow sensor tube, a drive device situated relative to the flow sensor tube so as to cause the flow sensor tube to vibrate, and capacitance displacement gauges...
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6763730 |
Vibrating tube meter
In a vibrating tube meter such as a Coriolis meter, an accurate measurement of a fluid parameter such as density can be obtained, substantially independent of stress, by measuring vibrational...
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6758101 |
Steam to carbon ratio control in steam reforming of hydrocarbons
A mass flowmeter system for use in steam reformation of hydrocarbons includes a Coriolis flowmeter in a hydrocarbon feedstock line. The feedstock carbon content is estimated by close approximation,...
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6748811 |
Ultrasonic flowmeter
An ultrasonic flow meter of the present invention includes: a measurement flow path 6 through which a fluid to be measured flows; ultrasonic transducers 8 and 9 provided respectively on an...
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6694279 |
Methods, apparatus, and computer program products for determining structural motion using mode selective filtering
Movement of a structure, such a conduit of a Coriolis mass flowmeter, is estimated. A plurality of motion signals representing motion of the structure are mode selective filtered to generate a...
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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...
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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...
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6591693 |
Universal input to DC output conversion circuitry
A circuit for supplying a DC output of a desired voltage from an input regardless of power received. In this circuit, a rectifier converts an alternating current (AC) input to direct current (DC)...
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6577977 |
Process parameter sensor apparatus, methods and computer program products using force filtering
A process parameter associated with a material contained in a vibrating structure is estimated. A plurality of motion signals representing motion at a plurality of locations of the vibrating...
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6535826 |
Mass flowmeter methods, apparatus, and computer program products using correlation-measure-based status determination
Motion signals representing motion of a conduit of a mass flowmeter are mode selective filtered to generate a plurality of mode selective filtered motion signals such that the plurality of mode...
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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...
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6516651 |
Coriolis effect transducer
A method for testing a Coriolis transducer having a mass adapted vibrate along a vibratory direction in a resonant structure and undergo a displacement along a sensitive axis, perpendicular to the...
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6512987 |
Method and apparatus for operating coriolis flowmeters at cryogenic temperatures
A Coriolis flowmeter is operated to generate accurate output material flow information over a wide temperature range that includes cryogenic temperatures. Heretofore, temperature compensation was...
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6505518 |
Process for activating an oscillator and power supply circuit system for an oscillator
A process for activating an oscillator serving to oscillate a Coriolis line of a Coriolis mass flowmeter for moving fluids, and of a power supply circuit system for an oscillator of a mass...
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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...
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6502466 |
System and method for fluid compressibility compensation in a Coriolis mass flow meter
A Coriolis mass flowmeter having a flowtube and excitation circuitry, coupled to the flowtube, that can excite the flowtube at varying frequencies of vibration and a method of operating the same to...
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6493642 |
Method of determining mass flow rate by the Coriolis principle
A method of correcting the phase difference between first and second data signals from a Coriolis flowmeter using three parallel input stages which process the signals and a pair of phase detectors...
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6457372 |
Flowmeter with first and second measuring tubes having correcting device for the measuring tubes, and method of determining mass flow rate
A flowmeter and a method of determining the mass flow rate. The flowmeter has a first measuring tube and a second measuring tube which are arranged in a common housing and are connected to one...
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