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6923072 |
Method and device for measuring airflows through HVAC grilles
A fan powered by a controlled external energy source and a flow measurement device measure the airflow exiting or entering grilles/registers of an HVAC system without impeding the airflow being...
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6923054 |
Microscale out-of-plane anemometer
A microscale out-of-plane thermal sensor. A resistive heater is suspended over a substrate by supports raised with respect to the substrate to provide a clearance underneath the resistive heater...
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6922059 |
Electric field sensor
The invention is a detection system and in one embodiment uses inexpensive, miniaturized sensors for detecting electric field (E-field) disturbances. Such sensors are easily and covertly deployable...
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6920799 |
Magnetic flow meter with reference electrode
An magnetic flow meter is provided which includes a reference electrode configured to electrically couple process fluid flowing within a flowtube of the flow meter. The reference electrode is...
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6920798 |
Vibratory transducer
The transducer ( 1 ) has at least one at least temporarily vibrating flow tube ( 101 ) of predeterminable lumen for conducting a fluid. The flow tube ( 101 ) communicates with a connected pipe via...
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6920797 |
Selecting an airflow generator for a system
A test apparatus includes a plurality of sensors placed proximate an airflow generator (e.g. a fan) to measure flow rates in respective sub-regions. The test apparatus also includes a controller...
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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...
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6917891 |
Systems and methods for diagnosing and predicting fluid flow systems using sensors
A fluid flow system for continuously monitoring the flow of fluid including fluid flow conduit with an upstream side and a downstream side, sensors and fluid flow elements, with the method for...
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6917887 |
Digital flowmeter
A flowmeter includes a vibratable conduit, a driver connected to the conduit and operable to impart motion to the conduit, and a sensor connected to the conduit and operable to sense the motion of...
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6917205 |
Microwave-resonator and measuring device
A resonator device for testing a material quantity in the tobacco-processing industry for existence of at least one foreign substance and/or for detecting at least one of weight, density and...
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6916165 |
Device for determining the operational state of an extruder
The invention relates to a device for determining the operational status of an extruder that is used for the productive of a plastic profile. At least one measuring device for determining the...
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6915707 |
Compact flow meter
Apparatus for measuring the composition and flow rate of a fluid ( 1 ) comprising a mixture of e.g. oil and water in a pipe ( 2 ), wherein an integrated mechanical structure ( 3 ) serves as a...
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6915706 |
Variable flow float flowmeter
A flowmeter has an inlet body including a flow detector and an outlet body including a flow adjuster. The inlet body is fixed to the outlet body and forms a single piece assembly comprising an...
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6915705 |
Flow sensor and flow resistive element
A flow sensor is disclosed that measures a flow of fluid passing through a conduit and a flow resistive element for use in such a flow sensor. The flow sensor includes a housing having a main...
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6915704 |
Ultrasonic flowmeter including stable flow rate calculation means based on instantaneous flow rate
In accordance with one embodiment, a flow meter of the present invention includes: transmission/reception means provided in a flow path for performing transmission/reception using a state change of...
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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...
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6912919 |
Restriction flowmeter
A restriction flowmeter including a cylinder through whose interior a fluid to be measured flows and a pipe for forming a restriction structure penetrating the cylinder in a direction perpendicular...
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6912918 |
Mass flow sensor and methods of determining mass flow of a fluid
The mass flow rate sensor includes a waveguide disposed in a flow passage having a bluff body facing in an upstream direction. Waves are pulsed along the waveguide for interaction with the fluid. A...
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6912917 |
Differential fluid parameter determination
Methods and apparatuses for determining a fluid parameter in a vessel by altering a property of the fluid, sensing the difference in the property after the fluid is altered, particularly as related...
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6912907 |
Ultrasonic apparatus and method for measuring the concentration and flow rate of gas
An apparatus for measuring a gas concentration comprises a conduit through which an objective gas to be measured flows, a ultrasonic transmitting and receiving element fixed in a straight portion...
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6912904 |
Single tube densitometer
A measurement device is provided that determines fluid properties from vibration frequencies of a sample cavity. In one embodiment, the measurement device includes a sample flow tube, vibration...
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6912895 |
Coolant flow monitoring system for an engine cooling system
A flow monitor is removably connectable in serial fluid communication with a coolant conduit of an engine cooling system. By providing a flow restrictor between upstream and downstream ports, a...
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6910388 |
Flow meter using an expanded tube section and sensitive differential pressure measurement
A method and apparatus for measuring the flow rate of a fluid within tubing disposed within a downhole wellbore. The present invention provides an inverse Venturi meter inserted within tubing with...
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6910387 |
Vortex flow sensor for measuring fluid flow through a flow tube
The vortex flow sensor is designed to measure the mass flow rate, the volumetric flow rate, or the flow velocity of a fluid flowing in a flow tube having a tube wall, and has two temperature...
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6910366 |
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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6907792 |
Method for measuring flow of fluid moving in pipe or groove-like flow passage
A flow rate of fluid moving within a tube having a small diameter can be measured by the steps of: preparing a structure that has first and second oscillation wave generating-detecting means on a...
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6907361 |
Ultrasonic flow-measuring method
An ultrasonic flow-measuring method determines the flow rate of a medium flowing through a line is determined by measuring the runtime of an ultrasonic signal that travels from a first ultrasonic...
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6904811 |
Apparatus for measuring the flow velocity and/or flow throughput of fluids
A flow meter, such as a gas meter, for measuring the flow velocity and/or the volumetric through-flow of fluids. The flow meter has a body with connecting flanges for connecting the meter to a...
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6904810 |
Purge type vortex flowmeter
A purge type vortex flowmeter capable of accurately measuring a flow rate of fluid over a wide range by reliably detecting the number of vortexes produced. A purge type vortex flowmeter which...
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6904809 |
Magnetic flowmeter with integral liquid trap
An integral trap magnetic flowmeter having an inlet in fluid communication with a sensing passage, the sensing passage intersecting a magnetic field, having electrodes for detecting a...
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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...
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6901814 |
Fuselage pitot-static tube
Since, as a rule, there are several such PSTs on an aircraft, this results in a marked reduction in weight and aerodynamic drag, and savings in the required electric power in conjunction with a...
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6901813 |
Flow meter alarm device
A flow meter alarm device easily attached to and removed from a flow meter at various locations along the length of the flow meter. The device is compatible with flow meters which have a float for...
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6901812 |
Single-body dual-chip Orthogonal sensing transit-time flow device
An ultrasonic sensor having a pair of ultrasound transducers adapted to be inserted in and being able to perform at a single site of introduction into a duct. The ultrasonic sensor measures a...
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6899616 |
Mass flow grain monitor and method
A mass flow grain monitor is located adjacent the upper end of the clean grain elevator assembly of a harvester and includes a load cell having a member that is subject to slight deformation under...
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6898987 |
Flow meter
A flow meter includes a cylindrical flow chamber having an axis and an internal cylindrical wall. Axially spaced about opposite ends of the flow chamber are an inlet and an outlet. Both the inlet...
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6898986 |
Meter for the measurement of multiphase fluids and wet gas
A meter for the measurement of the gas mass flow rate and total liquid mass flow rate of a two phase or multiphase fluid is disclosed. The meter comprises a series of three flow element, the firs...
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6898985 |
Method of determining the normal evaporation rate (NER) and vacuum quality of a cryogenic liquid container
A method of determining the NER and vacuum quality of a cryogenic liquid container that includes the steps of providing a flow gauge having a scale provided thereon adjacent a flow volume indicator...
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6898984 |
Measuring apparatus to determine the flow of a fluid
A measuring apparatus ( 1 ) for determining the flow (Q) of a fluid ( 2 ). The apparatus has a hollow body ( 3 ), with an inflow ( 4 ) and an outflow ( 5 ) for the fluid ( 2 ). A magnetic sample (...
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6898339 |
Multiple mode pre-loadable fiber optic pressure and temperature sensor
A multiple mode pre-loadable fiber optic pressure and temperature sensor includes a generally cylindrical structure having at least one compression element, a fiber optic having a Bragg grating in...
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6895826 |
Coriolis mass flowmeter
The Coriolis mass flow meter of this invention comprises two parallel curved flow tubes 1 and 2, a drive unit 15, and a pair of vibration sensors 16 and 17. An inlet-side manifold 24 ...
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6895825 |
Ultrasonic transducer assembly for monitoring a fluid flowing through a duct
An ultrasonic transducer assembly for helping monitor a fluid flowing through a duct is disclosed herein. The assembly includes: (1) a piezoelectric transducer element having a first contact...
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6895824 |
Apparatus for measuring the velocity and/or through-flow of a fluid
A body for a flow meter for measuring the flow velocity and/or the volumetric through-flow of fluids. The flow meter body has a tubular center piece with connecting flanges for connection to a...
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6895823 |
Device for measuring the flow rate and/or the flow throughput of a fluid
A device for measuring the flow velocity and/or the throughput of a fluid by means of ultrasound, with at least one ultrasonic transducer ( 16, 18 ) arranged on the outside of a wall ( 14 ) of a...
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6895812 |
Cup anemometer
The present invention relates to a cup anemometer having at least two cups ( 1 ) each attached to an arm ( 2 ) of a hub ( 3 ) on a rotary shaft. By cup is meant a generally seen cup-shaped body...
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6893152 |
Method and device for evaluating a fuel gas wobbe index
A method for evaluating the Wobbe index of a fuel gas belonging to a family of gases. The method includes measuring mass flow rates the fuel gas and of a reference gas, which is not necessarily a...
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6892586 |
Measuring and controlling the flow of flowable materials
A method of determining an inlet flow rate (F inlet ) of a flowable material including passing an inlet stream of flowable material through a chamber ( 20 ) having an outlet aperture ( 100 );...
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6892584 |
Fabricated pitot probe assembly
A pitot pressure sensing probe assembly is made up of individual components comprising a barrel formed with a longitudinal interior passageway and a conical end cap at its leading end. A strut that...
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6892571 |
Sensor for the measurement of flowspeeds and method for operating the same
A sensor for measuring a flow speed of a fluid medium includes a housing with a carrier membrane disposed in the housing and being essentially in a form of a vane having a circumference and at...
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6889564 |
Peak flow meter
A peak flow meter for measuring a peak flow or air exhaled by a patient. The preferred peak flow meter includes a substantially hollow housing having a top portion, a bottom portion, an air inlet...
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