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7162915 |
Viscometer
The viscometer provides a viscosity value (X η ) which represents the viscosity of a fluid flowing in a pipe connected thereto. It comprises a vibratory transducer with at least one flow tube for...
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7159473 |
Internal tube support for flow elements providing for tube expansion within the flow element shell
A tube mounting assembly for total traverse or static traverse sensing tubes is provided for use with Pitot tube devices where the tubes are allowed to expand and contract independent of the flow...
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7159472 |
Apparatus for determining fluid flow
An apparatus for determining the flow rate of a fluid in a pipe. The apparatus includes a device for providing acoustic energy on a diametrical path through the fluid. The diametrical providing...
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7155983 |
Magnetic flow meter with unibody construction and conductive polymer electrodes
A magnetic flow metering device and method is disclosed for the measurement of corrosive flow streams. The device utilizes a unibody construction wherein the flow conduit is constructed entirely...
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7152490 |
Methods for determining transducer delay time and transducer separation in ultrasonic flow meters
Methods and related systems for determining transducer delay time and transducer separation in ultrasonic flow meters. At least some of the illustrative embodiments are a method comprising...
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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...
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7152455 |
Rapid gas recovery in an incubator system
Methods and apparatus for rapid gas recovery in a controlled gas atmosphere enclosure, which are particularly suited for maintaining incubator gas concentration levels, include the formulation of...
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7150202 |
Method and apparatus for measuring characteristics of core-annular flow
An apparatus and method are disclosed wherein at least one parameter associated with a core-annular flow (CAF) in a pipe is measured by sensing unsteady pressures associated with undulations formed...
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7150201 |
System and method for measuring flow
One embodiment of the present invention can comprise a primary flow measurement system, a secondary flow measurement system in fluid communication with the primary flow measurement system and a...
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7148077 |
Micromechanical structural element having a diaphragm and method for producing such a structural element
A micromechanical structural element, having a very stable diaphragm, implemented in a pure front process and in a layer construction on a substrate. The layer construction includes at least one...
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7146864 |
Apparatus having a multi-band sensor assembly for measuring a parameter of a fluid flow flowing within a pipe
An apparatus measures the speed of sound and/or vortical disturbances propagating in a fluid flow to determine a parameter of the flow propagating through a pipe. The apparatus includes a sensing...
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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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7143655 |
Magnetic circuit arrangement for a transducer
The magnetic circuit arrangement, which is preferably used in a fluid-measuring transducer, comprises at least one coil which is traversed in operation by a current. It further comprises two...
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7140263 |
Anemometer circuit
An anemometer circuit comprises a sensor having a resistance which varies with temperature, immersed within a moving medium, the mass flow rate of which is to be determined. A control loop causes a...
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7140262 |
Precision variable area flowmeter apparatus
We have invented an improved apparatus for electronically measuring fluid flow. The apparatus includes a radiation detection means for indicating the position of a flow indicator in a chamber of a...
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7140261 |
Acoustic wave flow sensor
An acoustic wave flow sensor is disclosed, which includes a sensor substrate and an acoustic wave diaphragm etched upon the sensor substrate, wherein mechanical stress or strain is concentrated in...
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7137307 |
Magnetic-inductive measuring device for flowing substances and method for its production
The invention relates to a magnetic-inductive measuring device for flowing substances with at least one subsystem respectively for carrying the substances, recording measuring signals through a...
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7136777 |
Coriolis mass flowmeter and method for operating a coriolis mass flowmeter
A Coriolis mass flowmeter incorporates at least one measuring tube, at least one oscillator for the excitation of the measuring tube and at least one oscillation detector for registering 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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7135749 |
Pressure sensor
A pressure sensor includes a silicon-on-insulator (SOI) substrate, a glass substrate bonded to the SOI substrate by anode bonding, a silicon island formed on a part of a silicon layer of the SOI...
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7134348 |
Method for operating a mass flowmeter
A method for operating a Coriolis mass flowmeter incorporates a measuring tube through which flows a medium and which is stimulated into oscillating at a minimum of one frequency, the resulting...
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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...
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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...
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7131451 |
Apparatus for controlling and metering fluid flow
A device for metering and controlling fluid flow includes a variable orifice and is configured to use a pressure sensor. The device includes a fluid flow conduit having at least one planar inner...
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7130750 |
Flow meter with magnetoresistive sensors and method of measuring flow
A variable area flow meter has a magnet carried by a piston which is moved to a position representing fluid flow. An array of magnetoresistive bridge sensors adjacent the path of magnet movement...
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7127954 |
Method and device for measuring the flow rate of a fluid
A method for measuring the flow rate of a fluid flowing in a conduit includes separating the fluid into two portions then flowing into two branches ( 20, 22 ). Both portions are then recombined in...
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7127953 |
Target flow meters
A target flow meter has a target with a broad face attached to the free end of a rigid stalk. A fixed end of the stalk is attached to a rigid support secured in the system to be measured with the...
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7127952 |
Vibration-type measurement pickup for measuring media flowing in two medium-lines, and inline measuring device having such a pickup
A measurement pickup includes at least four measuring tubes for conveying media to be measured. Each measuring tube has a first in-/outlet end and a second in-/outlet end. During operation, the...
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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...
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7127360 |
Dual function flow measurement apparatus having an array of sensors
A dual function flow measurement apparatus is provided that combines the functionality of an apparatus that measures the speed of sound propagating through a fluid flowing within a pipe, and...
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7124647 |
Slotted flow restrictor for a mass flow meter
A flow restrictor ( 30 ) for a mass flow metering device formed of a solid material and slots ( 32 ) originating from an outer surface towards inward.
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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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7124645 |
Magnetic-inductive measuring device for flowing substances and method for its production
The invention relates to a magnetic-inductive measuring device ( 1 ) for flowing substances (substance being measured), with a measuring tube ( 2 ) and a further subsystem respectively
for...
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7124621 |
Acoustic flowmeter calibration method
An acoustic flowmeter calibration method and sampling system address a variation in acoustic transducer delay time with increasing temperature. In one aspect, calibration of the path length between...
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7124037 |
Devices, systems, and methods for monitoring the operation of an injection molding machine
Devices, systems, and methods for monitoring the operation of an injection molding machine, for example, a wax injection molding machine, are disclosed. The devices, systems, and methods may be...
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7121299 |
Regulator valve with flow indicator for a hot-water heating system
The valve includes an intake duct ( 13 ) for conveying water into the valve, an externally projecting tubular body ( 20 ) of a transparent with an internal cavity ( 21 ) and a flow indicator rod (...
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7121152 |
Portable flow measurement apparatus having an array of sensors
A portable flow measuring apparatus measures the speed of sound and/or vortical disturbances propagating in a fluid flow to determine a parameter of the flow propagating through a pipe. The...
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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...
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7121150 |
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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7117751 |
Coriolis mass flow sensor having optical sensors
A Coriolis mass flow sensor includes a flow tube, a light source, and a light pipe having a light inlet situated to receive light from the light source and a light outlet for emitting light...
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7117750 |
Method for operating a magnetoinductive flowmeter
A method for operating a magnetoinductive flowmeter of the type including a measuring tube through which flows an electrically conductive medium, at least two electrodes that are in direct...
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7117749 |
Electromagnetic flow meter for low conductivity fluids
An electromagnetic flow meter is disclosed which can be used to measure flow in low conductivity fluids, for example alcohol, turpentine, oil or other organic solvents. In one embodiment, the...
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7117732 |
Fuel gauge for fuel cartridges
Fuel gauges for fuel supplies for fuel cells are disclosed. Each fuel gauge has a property that is readable by an electrical circuit. These properties are related to the remaining fuel in the fuel...
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7117595 |
Method for manufacturing a conveying element of an axial type flow meter used for drink vendors
A device is described for measuring a fluid, to be used advantageously in mixing devices for ingredients of liquid drinks. The device comprises an impeller, a diffuser upstream from the impeller...
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7117138 |
Coupled quadrilateral grid level set scheme for piezoelectric ink-jet simulation
Methods for finite-difference-based inkjet simulation enable more precise control of ink droplet size and shape. A discrete transformation (mapping) is constructed so that a quadrilateral grid in...
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7115399 |
Pinna reflex assay
Method for measuring potency of a substance, the method including; administering the substance to a mammal; subjecting the mammal to a stimulus; and monitoring a pinna reflex response of the mammal.
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7115107 |
Blood circuit for a dialysis machine and corresponding dialysis machine
A blood circuit ( 1 ) for a dialysis machine is made form plastic material and is provided with a metallic plate ( 30 ), which is applied to an external face of the blood circuit ( 1 ) and is...
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7114401 |
Apparatus and methods for abrasive fluid flow meter
A system and method provides a flow measurement system for steady-state and transient flow. A housing contains a sleeve such that the sleeve is isolated from external mechanical loads. A flow...
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7114400 |
Magnetoinductive flowmeter and method for operating a magnetoinductive flowmeter
A magnetoinductive flowmeter incorporates a magnet for generating a magnetic field that permeates the flowmeter's measuring tube with a magnetic field component perpendicular to the direction of...
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7111520 |
Increased sensitivity for liquid meter
A lower cost meter comprised of an inner housing constructed out of a high permeable material surrounded by an outer housing constructed out of a lower cost, lower permeable material. A port is...
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