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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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7255013 |
Method and apparatus for measuring cryogenic flow
A method for calculating a mass flow rate of a cryogenic fluid within a flow tube includes positioning a sensor within a stream of cryogenic fluid flowing through the flow tube. The sensor is...
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7255012 |
Process fluid flow device with variable orifice
A process device providing total fluid flow control is provided. The device includes a closure mechanism disposed in a flow conduit. The closure mechanism, which is preferably an iris-type...
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7254523 |
Selectively reduced bi-cubic interpolation for ink-jet simulations on quadrilateral grids
A selectively reduced bi-cubic interpolation on quadrilateral grids for level set re-distancing improves finite-difference-based ink-jet simulation. The “bi-cubic” nature of the interpolation...
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7254494 |
Ultrasonic signal processing method and applications thereof
An ultrasonic signal processing method for improving the signal-to-noise ratio in ultrasonic measurements comprises the transmission of a predefined timed sequence of a number of ultrasonic burst...
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7252015 |
Ultrasonic flow meter including guide elements
The measurement of volume flows or mass flows in the intake system of motor vehicle internal combustion engines plays a significant role in reducing pollutant emissions. Therefore, an ultrasonic...
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7252014 |
Instrument and method for measuring the volume of a hermetically sealed variable volume and pressure conforming container
An instrument and method for measuring the volume of a hermetically sealed, variable volume, pressure conforming container. The instrument includes a needle, a vacuum pump, a mass flow rate sensor...
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7251591 |
Consistent back pressure for piezoelectric ink-jet simulation
A consistent back pressure formulation is introduced into ink-jet simulation models and algorithms to solve an instability problem that occurs as the head of an ink droplet reaches the end of the...
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7249525 |
Apparatus for measuring parameters of a fluid in a lined pipe
An apparatus for measuring a parameter of a fluid passing through a pipe comprises a spatial array of pressure sensors disposed at different axial locations along the pipe between a sleeve within...
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7249524 |
Fluid flow rate and volume sensor, and filtration apparatuses and purification apparatuses having such a sensor
A flow rate and volume sensor for determining the rate and volume of fluid flowing through an apparatus, such as an apparatus for filtering and/or conditioning and/or purifying fluid, such as...
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7246530 |
Flow sensor and method for measuring a flow rate component of a fluid containing electrically charged elements
The invention relates to measurement of a fluid flow, wherein a flow rate component of the fluid is measured along a selected direction. A magnetic field whose polarity varies over time is applied...
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7246529 |
Oscillating vane actuator apparatus and method for active flow control
An oscillating vane actuator for active control of fluid flow over a surface includes a pivoted vane surrounded by a wedge-shaped chamber, and first and second conduits with openings adjacent the...
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RE39724 |
Respiratory humidification system
A flow probe for use in a humidification system is disclosed. The flow probe is adapted to be positioned in a humidified gases flow (for example oxygen or anesthetic gases) such as that which is...
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7245230 |
Dual magnetic field sensor unit
The present inventions relate to a method and apparatus for adding Automatic Meter Reading (AMR) capabilities to utility meters that generate a magnetic field comprising magnetic flux that varies...
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7243556 |
Airflow sensor
An airflow sensor for use in a conduit. The sensor comprises stacked first, second and third portions positioned, in use, in the conduit to define a hub and a plurality of tubes. The hub is...
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7243555 |
Transmitting and receiving circuitry for an ultrasonic flowmeter, and method for operating such transmitting and receiving circuitry
A transmitting and receiving circuitry system for an ultrasonic flowmeter includes an ultrasound transducer interface for connection to an ultrasound transducer of the ultrasonic flowmeter, an...
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7240568 |
Method and apparatus for determining the gas flow rate of a gas-liquid mixture
A method and apparatus are provided for determining the gas flow rate of a gas-liquid mixture which has a gas volume fraction (GVF) of at least 85% and which is conveyed along a conduit. The...
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7240567 |
Dynamic response characteristics of flow meters
A flowmeter includes a vibratable flowtube that has internal damping characteristics that substantially result in a desired dynamic response of the vibratable tube to a change in a flow of fluid...
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7240566 |
Device for positioning a clamp-on flowmeter on a container
An apparatus for the positioning of a clamp-on flow measuring device on a containment, which has a medium flowing through it. The apparatus includes at least two ultrasonic transducers, which emit...
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7237767 |
Device and method for manufacturing carbonated spring and carbonic water, control method for gas density applied thereto and membrane module
Hot water ( 12 ) in a bath ( 11 ) is pumped up by a suction pump ( 9 ) and introduced into a carbon dioxide gas dissolver ( 7 ) through solution flow rate adjusting means ( 14 ) and then, poured...
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7237441 |
Ultrasonic type fluid measurement device
An ultrasonic fluid measurement instrument is capable of highly accurate fluid measurement. A measurement part is provided forming a plurality of split channels partitioned by partition boards...
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7237440 |
Flow measurement apparatus having strain-based sensors and ultrasonic sensors
A flow measurement apparatus is provided that combines the functionality of an apparatus that uses strain-based sensors and ultrasonic sensors to measure the speed of sound propagating through a...
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7236912 |
Method and device for determining and/or monitoring a volume and/or mass flow
A method and a device for determining and/or monitoring the volume flow rate and/or mass flow rate of a medium flowing through a container. In the case of the device, such is an ultrasonic flow...
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7234450 |
Gas density ratio detector, gas concentration detector, and fuel vapor treatment apparatus
When a gas flow producer is driven, plural kinds of gases flow into a measure-passage at respective timing. An orifice is provided in the measure-passage. The orifice has a diameter-changing...
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7234363 |
Mass flow meter
The invention relates to a mass flow meter for flowing media, which operates according to the Coriolis principle. At least one oscillator and at lest one sensor that detects Coriolis forces and/or...
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7231836 |
Device for monitoring an air supply flow or a volumetric air flow
The invention relates to a device for monitoring an air supply flow or a volumetric air flow, in particular for ventilators which can also be applied for extremely low flow speeds and/or throughput...
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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...
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7231329 |
Enhanced elliptic grid generation
Method and system for generating an elliptic grid in generalized coordinates in two or three dimensions, where one or more decay parameters near a boundary segment of a grid are determined as part...
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7228750 |
Apparatus and method for measuring fluid flow
A method and apparatus for fluid flow straightening and measurement introduces a high beta nozzle or venturi in-line with existing conduit. A fluid velocity measuring device is positioned in the...
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7228749 |
Coriolis mass flow pick-up
A coriolis mass flow pick-up is disclosed, which can be inserted into a pipeline and has a fluid to be measured flowing through it during operation. The pick-up includes a single measuring pipe,...
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7228748 |
Electromagnetic flow meter insert
An insert for an electromagnetic flow meter is disclosed. The insert is arranged to be positioned within a flow conduit having a flow conduit cross-section to define a flow path for fluid, wherein...
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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...
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7225685 |
Pipe assembly unit with built-in flow sensors
Cost is reduced by simplifying piping work and reducing the number of parts. At the same time, the degree of freedom in the arrangement of piping is raised by making the mounting posture of the...
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7225683 |
Composition pulse time-of-flight mass flow sensor
A device for measuring fluid flow rates over a wide range of flow rates (<1 nL/min to >10 μL/min) and at pressures at least as great as 2,000 psi. The invention is particularly adapted for...
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7222542 |
Method, system, controller and computer program product for controlling the flow of a multiphase fluid
A method, system, controller and computer program product, for controlling the flow of a multiphase fluid comprising gas and liquid in a conduit, which conduit is provided at a downstream side with...
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7219560 |
Method for determining and correcting for turbine meter overspin at the instantaneous stoppage of flow rate
A method of correcting for overspin in a turbine meter is provided. The turbine meter has turbine rotors positioned in a pipe in which liquid passes therethrough. The turbine rotors rotate in...
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7219559 |
Flow meter using digital signals
A flow meter outputs an electric signal of a position a float within a taper-shaped tube precisely. A taper-shaped tube is made of an approximately transparent material, is mounted approximately...
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7219558 |
Ultra low pressure drop flow element system for measuring fluid flow rates
The present invention relates to the field of correlating a fluid flow rate by strategically measuring a differential pressure of a fluid. Embodiments of the present invention build off a simple...
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7219557 |
Method and apparatus for calculating flowing medium temperature in a magnetoinductive flowmeter
A method for calculating the temperature of a medium traveling through a measuring tube, while with the aid of at least one field coil a magnetic field is generated which permeates the measuring...
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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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7216549 |
Vibration-type measurement transducer
A measurement transducer includes a transducer housing, which exhibits a multiplicity of natural oscillation modes and at least a first measuring tube for conveying at least a volume fraction of...
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7213473 |
Sample preparation system for microfluidic applications
An apparatus that couples automated injection with flow feedback to provide nanoliter accuracy in controlling microliter volumes. The apparatus comprises generally a source of hydraulic fluid...
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7213472 |
Connecting piece for fluid lines
A connector ( 3 ) is suggested, which is capable of connecting a fluid line ( 28 ) to a fluid technology device. A connection channel runs between a device connection ( 24 ) and a line connection (...
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7213470 |
Coriolis mass flowmeter
Coriolis mass flowmeter with a measuring pipe ( 2 ) vibrating in coupled flexural and torsional modes, characterized in that an attachment ( 20 ) which is formed rotationally symmetrically with...
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7213469 |
Vibratory transducer for coriolis mass flowmeter or a coriolis mass flowmeter-densimeter
A transducer has at least one at least temporarily vibrating flow tube of predeterminable lumen for conducting a fluid. The flow tube communicates with a connected pipe via an inlet tube section (...
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7213468 |
Ultrasonic apparatus and method for measuring the concentration and flow rate of gas
An ultrasonic apparatus measures the concentration and flow rate of a sample gas by calculating a possible propagation time range on the basis of the gas temperature, determining whether or not the...
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7213467 |
Flowmeter
An electromagnetic flow meter is configured as an insert for insertion into an in-situ housing connected in a flow line. This can enable a body previously installed for use with an insert of a...
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7211873 |
Sensor device having thin membrane and method of manufacturing the same
A sensor device for use in an automobile as an airflow sensor is composed of a silicon substrate in which a cavity is formed and a base plate bonded to the silicon substrate. An upper end of the...
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7210359 |
Method and apparatus to determine an initial flow rate in a conduit
A method and apparatus for determining an initial flow rate in a conduit is disclosed. A known change is made to the flow to be measured, resulting changes (or values corresponding to these...
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7208570 |
Method of refining tall oil
The present invention relates to a method of refining crude tall oil. According to the method, the crude tall oil is fed into a column distiller, where it is separated into desired fractions. The...
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