|
Match
|
Document |
Document Title |
|
|
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...
|
|
|
7366621 |
Program product to measure density, specific gravity, and flow rate of fluids
Program product to measure fluid flow characteristics in a pipeline is provided. A vortex-shedding body is positioned within the pipeline to form vortices. A vortex meter can include a vortex...
|
|
|
7360445 |
Flow sensor
A flow sensor need not have any special terminal for voltage value supply, and can obtain a ratiometric output function at low cost and small size. A calculation circuit calculates, as a reference...
|
|
|
7000466 |
Oil flow sensing
An electrical current is passed through a thermistor to raise its temperature above the temperature of oil flowing in pulses past the thermistor. A change is measured in the temperature of the...
|
|
|
6915703 |
Capacitance meter
A method for determining a flow property of a fluid flowing through a conduit provided with a capacitance meter having an upstream and a downstream annular capacitance sensor, wherein each annular...
|
|
|
6865495 |
Flow metering
In order to reduce the influence of fluid velocity on a measurement of a concentration characteristic of a fluid, the magnitude of an r.m.s. signal V derived from a voltage induced in a sensor...
|
|
|
6732589 |
Pressure sensor, a method for manufacturing a pressure sensor and a combustion engine having a pressure sensor
A pressure sensor includes a housing, an interior chamber of which is sealed by a diaphragm, and a flexible measuring element, which is positioned separately. In addition, the pressure sensor...
|
|
|
6556142 |
System and method to communicate flow information between a service distribution line and a destination point
A system and method for communicating information between a utility metering device, such as a water meter, and a remote location, such as inside a residence or a service provider.
|
|
|
6453753 |
Volume or mass flowmeter
A flow meter includes a flow sensor for conducting fluid in a measuring direction and an opposite measuring direction, alternatively. Evaluation electronics coupled to the flow sensor generate a...
|
|
|
6377171 |
On-line filter monitoring system
A monitoring system ( 10 ) is disclosed for monitoring the condition of a filter ( 16 ) filtering a gas or liquid. Using various sensors, the permeability of the filter is monitored on a continuous...
|
|
|
6148677 |
Gas flow area measurement
The effective flow area of a restriction in a gas flow passage, such as that of a gas turbine nozzle or vane, is determined by use of a large reservoir containing pressurized gas which is...
|
|
|
6035721 |
Process for compensating for the incorrect operation of measuring devices caused by external influences
|
|
|
6029527 |
Fluid flow rate measuring and controlling device and method
A device and method of measuring and controlling the flow rate of a fluid determine analog process variables which are dependent on a volumetric flow of the fluid, and the values thus obtained are...
|
|
|
5932812 |
Method and devices use in flow measurement
In flow measurement, a measurement signal essentially representing the instantaneous flow rate is determined with the aid of a flow transducer (2) in a flowmeter (1). In order to check whether the...
|
|
|
5922969 |
Method and apparatus for measuring the volume of flowing liquids
A method for measuring the volume of flowing liquids under avoidance of measuring errors owing to undesired high gaseous content, wherein the gaseous content of the liquid flowing through a conduit...
|
|
|
5875765 |
Fuel vapor source
A canister contains two cartridges of activated carbon for storing fuel in gasoline powered motor vehicles. A first cartridge operates to adsorb gasoline vapor produced in the fuel tank while the...
|
|
|
5835884 |
Method of determining a characteristic of a fluid
A method of determining a characteristic of a fluid involves measuring a sonic transit time (102), along a non-perpendicular path, through the fluid. The sonic transit time is used to determine a...
|
|
|
5687100 |
Vibrating tube densimeter
A Coriolis effect densimeter which produces density output data of improved accuracy by embodying the principal that the natural frequency of a vibrating tube filled with material decreases with an...
|
|
|
5684245 |
Apparatus for mass flow measurement of a gas
Apparatus for and method of measuring mass flow of a gas in a gas delivery system. The apparatus is adapted to be connected to a source of a gas. The apparatus includes a fixed-volume chamber in...
|
|
|
5597020 |
Method and apparatus for dispensing natural gas with pressure sensor calibration
A supply plenum connected to a source of compressed natural gas (CNG) and a control valve assembly for selectively turning on the flow of CNG through a sonic nozzle and out through a dispensing...
|
|
|
5557050 |
System for metering gas supplied under high pressure
A metering system, for metering a volume V o of compressed gas supplied under high pressure from a first tank to a second tank, includes a first duct for supplying the compressed gas from the...
|
|
|
5551282 |
Method and apparatus for measuring volume correction using molar quantities
A method and apparatus for measuring volume correction in a gas pipeline using a variable volume chamber where the gas is sampled at the temperature and pressure of gas in the pipeline. A portion...
|
|
|
5493915 |
Fluid dynamic torsional vortex sensor
A torsional vortex sensor comprises an extended member disposed across a flow passage extending through a flowmeter body and experiencing a fluctuating fluid dynamic force associated with vortex...
|
|
|
5469749 |
Multiple-function fluid measuring and transmitting apparatus
A measuring and controlling system is provided which has a control function as well as a measurement function to perform the measurement and control of fluid amounts such as the flow rate,...
|
|
|
5463903 |
Torque flowmeter
A flowmeter particularly for use in determining fluid velocity in oil wells where a torque impeller is connected to a torque force transducer through a torque shaft and a torque coupler. The torque...
|
|
|
5450760 |
Turbine flowmeter with capacitive transducer
A turbine flowmeter employs a capacitive rotary speed sensor comprising an electrically conductive member with a sizable surface area kinematically coupled to the rotating motion of the turbine,...
|
|
|
5415029 |
Air flow detector for engine control unit
An exothermic resistor type air flow detector according to the invention is compact and requires no special radiation structure. A control circuit comprised of a transistor T and a differential...
|
|
|
5357809 |
Volumetric flow corrector having a densitometer
A method an apparatus for measuring a base condition volumetric flowrate of a pipeline gas flowing through a pipeline in which a pipeline gas flowrate is measured by a pipeline gas flowmeter; a...
|
|
|
5343758 |
Method and apparatus for measuring gas flow
A method and apparatus for measuring the gaseous flow of a fluid flowing along a duct, the apparatus comprises a processing and control unit connected firstly to a flow rate measuring device which...
|
|
|
5325066 |
Density compensated pipeline monitor
Apparatus and method for determining the water content of an oil and water mixture such as is transported by pipelines and which oil and water may vary in density from time to time. A densitometer...
|
|
|
5323657 |
Volumetric flow corrector and method
A method and apparatus for measuring a base condition volumetric flowrate of a pipeline gas flowing through a pipeline in which a pipeline gas flowrate is measured by a pipeline gas flowmeter that...
|
|
|
5237523 |
Flowmeter fluid composition and temperature correction
A method for correcting the flow measurement of a gaseous or liquid fluid of interest for changes in the composition and temperature of that fluid in a flowmeter of the hot element type is...
|
|
|
5152181 |
Mass-volume vortex flowmeter
A flowmeter has a vortex generating bluff body (102) disposed across the flow passage (106), a planar member (103) disposed immediate upstream of the bluff body (102) including a plurality of total...
|
|
|
5152174 |
Mass flow rate sensor and method
An acoustic signal is transmitted into a flowing gas (10). The velocities of propagation of the signal in two predetermined directions are measured, and combined with sensed gas pressure and the...
|
|
|
5135684 |
Multiphase process mixing and measuring system
A liquid is supplied to a vessel (10) to form a pool (21) from which it discharges through a venturi. A supply pipe or pipes (12, 30) convey other liquids and/or gases from separate sources or from...
|
|
|
5048323 |
Fluid metering
A gas flow correction sensor for producing an output signal proportional to the ratio between line pressure and line temperature for gas flowing in a line, for use in correcting the output of a...
|
|
|
5044209 |
Reaction force flowmeter
An apparatus for measuring the momentum flow rate of fluid comprises a first conduit extending from one extremity thereof connected to an inlet leg and secured to a support, a second conduit...
|
|
|
5033644 |
Precision dispensing of varying viscosity fluids in a prescribed mix ratio
The flow rate of fluid components, typically water and syrup, is sensed by a flowmeter that is substantially insensitive to variations in fluid pressure and/or viscosity. A feedback circuit which...
|
|
|
4967603 |
Inductive flow probe for measuring the flow velocity of a stream of liquid metal
An inductive flow probe for measuring the flow velocity of a stream of liquid metal by insertion of the probe into the stream. The probe includes a probe tube having first and second regions...
|
|
|
4961348 |
Flowmeter fluid composition correction
A method for correcting the flow measurement of a gaseous fluid of interest for changes in the composition of that fluid in a flowmeter of the microanemometer class is disclosed in which an...
|
|
|
4951224 |
Control device for fluid flow
An apparatus for controlling the fluid flow rate through a fluid transmission conduit is disclosed. A first set of resistors and a second set of resistors are connected in full bridge fashion and...
|
|
|
4941361 |
Three-in-one flowmeter
The flowmeter comprising a first flow passage with a fixed cross section geometry and a second flow passage with a variable cross section geometry measures the volume and mass rates of fluid flow...
|
|
|
4918995 |
Electronic gas meter
An electronic compact gas meter includes a solid state flow sensor for sensing gas flow rate, data acquisition circuits including an analog-to-digital converter coupled to the sensor for...
|
|
|
4896540 |
Aeroacoustic flowmeter
The flowmeter is based on a measurement of phase difference between two points on the circumference of a pipe separated axially by an integral multiple of sound wavelength. Plane sound waves are...
|
|
|
4885938 |
Flowmeter fluid composition correction
Certain relationships among the mass flow signal the thermal conductivity, specific heat and density of the fluid measured can be used to correct a mass flowmeter measurement with respect to...
|
|
|
4884441 |
Variable capacity flowmeter
The flowmeter of the present invention comprises at least two separate flow passages wherein one of the two flow passages include a shut-off valve with an actuator and the other of the two passage...
|
|
|
4875377 |
Flowmeters
A flowmeter utilizing the property of dry saturated steam that the density of the steam is dependent upon the temperature thereof has a first sensor that is a rotation sensor (1) which includes a...
|
|
|
4848301 |
Fuel feed quantity control system for internal combustion engine
A fuel feed quantity control system of the so-called L-Jetronic system is described. The system is equipped with a Karman vortex air-flow sensor, at least one injector for feeding a fuel into an...
|
|
|
4839790 |
Gas accident preventive unit
A gas accident preventive unit has a memory circuit which is capable of memorizing in advance a continuous service safety time according to a consumed gas volume of gas apparatuses that are...
|
|
|
4835456 |
Cryogenic density and mass-flow measurement system
A cryogenic density and mass-flow measurement system incorporating a high-speed microprocessor-based cryogenic fluid density instrumentation that is based on the rigorous application of the...
|