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8791406 Method and apparatus for determining a fluid density  
The invention provides an apparatus and method for measuring a property of a gas, such as the amount of liquid in a stream of the gas. The apparatus comprises a source of beta particles (20), a...
8785877 Method for monitoring fouling in a cooling tower  
Fouling in the fill portion of a cooling tower is monitored by transmitting radiation through a cooling tower, detecting the amount of radiation that has penetrated the cooling tower, and...
8569686 Multi-channel infrared optical phase fraction meter  
Methods and apparatus for measuring a phase fraction of a flow stream are disclosed. An infrared phase fraction meter includes a light source for emitting into a flow stream infrared radiation...
8569702 Optical multiphase flowmeter  
Method and apparatus enable direct measurement of at least one flow velocity for one or more phases within a multiphase fluid mixture flowing in a conduit. Some embodiments provide determination...
8362440 Method for monitoring fouling in a cooling tower  
Fouling in the fill portion of a cooling tower is monitored by transmitting radiation through a cooling tower, detecting the amount of radiation that has penetrated the cooling tower, and...
8129692 Method for monitoring fouling in a cooling tower  
Fouling in the fill portion of a cooling tower is monitored by transmitting radiation through a cooling tower, detecting the amount of radiation that has penetrated the cooling tower, and...
8089046 Method and apparatus for calibrating mass flow controllers  
A method for determining the flow rate of a gas includes measuring a first concentration of a calibration gas provided to the process chamber at a first pressure and temperature by directing...
7372039 Near UV absorption spectrometer and method for using the same  
A UV absorption spectrometer includes a housing, a controller, and a sensor unit including an ultraviolet light source, an analytical area in an analytical cell or in running water or gaseous...
7102133 Method and device for measuring a mass flow  
A device used to measure the mass flow of a particulate transported with the aid of a gas. The device includes an arrangement which is used to create an electromagnetic field, with a measuring...
6433861 Method and apparatus for a non-invasive measurement of the velocity of a gas or a fluid medium  
A method for non-invasive measurement of the velocity of a medium selected from either a gas or a fluid at an examination location by boosting atoms and molecules of the medium into an excited...
6335959 Apparatus and method for determining oil well effluent characteristics for inhomogeneous flow conditions  
An apparatus and method for determining the phase volume fractions for a multiphase oil well effluent is disclosed. The apparatus measures multiple energy gamma ray attenuations through the...
6013921 Method of measuring a mass flow distribution of a flow  
In a method of measuring a mass flow distribution of a flow over a measuring plane (8), a light section (5) extending parallel to and around the measuring plane is formed, the light section having...
6011263 Method and apparatus for measuring multi-phase flow  
This invention is related to the measurement of flow rates and component fractions of individual phases of a composite fluid. More particularly, the invention is directed toward apparatus and...
5949069 Method and apparatus for measuring volumetric water flow rates in highly inclined wellbores  
A method for determining a volume fraction of water moving in a predetermined direction along a highly inclined conduit. The method includes measuring a fractional volume of water occupying the...
5708495 Method and apparatus for determining the velocity of a gas flow  
A method and apparatus for measuring the velocity of a gas flow that does not require the seeding of the flow is disclosed. The method and apparatus produce a population of stable molecules within...
5701009 Gas detection devices  
Gas detector includes structure (10) defining a gas flow passage (11), means (12) for passing an ultraviolet light beam (13) across the passage, and first and second electrodes (16, 17) downstream...
5654551 Method and apparatus for the measurement of the mass flow rates of fluid components in a multiphase slug flow  
A method of measuring mass flow rates of liquid phases in a multiphase slug flow containing at least two liquid phases includes (i) passing a flow through a tube; (ii) detecting commencement of...
5543617 Method of measuring flow velocities using tracer techniques  
A method of measuring flow velocities in flowing fluids includes injecting into the flow a non-radioactive tracer having a neutron capture cross section higher than that of the flowing fluids, for...
5526122 Method for determining the mass flow of gases on the basis of optical absorption and employment of said method  
In the method, the totality of the gases is conducted through an absorption cell. A reference cell contains a reference gas. The cells are optically transirradiated and a signal representing a...
5479020 Metering device for a fluid  
A metering device for multiphase fluid, for example, crude oil, comprises a γ or X-ray densitometer incorporating windows for the metering radiation of boron carbide. The boron carbide windows can...
5461909 Oxygen activation method for quantitative water flow measurements within and behind well bore casing  
A method for measuring the linear flow velocity, radial position, direction, and the flow rate of water flowing within and behind a well borehole casing. A logging tool containing a source of...
5404752 Method for measuring the velocity of water flow through nested conduits  
This disclosure provides a method for measuring the velocities of water volumes flowing co-directionally in separate conduits nested such as in injection or production well-bores. The method...
5396075 Method for in situ characterization of a medium of dispersed matter in a continuous phase  
A method for in situ characterization of a medium of a dispersed phase in a continuous phase, including the steps of adding a fluorescent dye to one phase capable of producing fluorescence therein...
5354990 In-situ localized tracer injection/fiber optic detection for measurement of flow distributions in fixed bed reactors  
The distribution of fluid flowing through a packed bed reactor is determined by placing a plurality of fiber optic sensors at desired locations within the packed bed reactor. A light analyzable...
5344044 Additive injection system and method  
An injection system and method for blending an additive into a main fluid flow stream at a controlled ratio, characterized by a controller wherein the electrical circuitry thereof is contained in...
5343041 Method and apparatus for determining the physical characteristics of a water flow  
A method and apparatus for studying the flow of water along a well, on the basis of a general spectrum g(t) of gamma ray detection numbers detected in a detection zone over a given detection...
5333044 Fluorescent image tracking velocimeter  
A multiple-exposure fluorescent image tracking velocimeter (FITV) detects and measures the motion (trajectory, direction and velocity) of small particles close to light scattering surfaces. The...
5315117 Volume meter system  
A system determines the relative amounts of phases in multiphase flow, typically the liquid (or gas) fraction of a stream in two-phase flow. More particularly, the system quickly and reliably...
5306911 Method for determining the flow rate of aqueous phases in a multiphase flow  
A method for determining at least one dynamic flow characteristic of a multiphase flow circulating in a pipe, said flow being composed of an aqueous phase and a hydrocarbon (oil) phase. Oxygen...
5271900 Carbon analyzer for both aqueous solutions and solid samples  
A carbon analyzer capable of measuring carbon contents of both liquid and solid samples under appropriate conditions includes not only basic components of a total organic carbon (TOC) analyzer...
5253535 Apparatus and method for monitoring mass flow of solids  
A method and apparatus for transporting solid particulate material and calculating mass flow rate of the material through a rotary feeder having helical pockets is provided. At least one radiation...
5243190 Radioactive tracing with particles  
There is provided radioactive particles having a ceramic matrix and an element which can be bombarded with neutrons to produce a gamma ray-emitting isotope. The particles are manufactured by...
5048973 Plug-type heat flux gauge  
A plug-type heat flux gauge formed in a material specimen and having a thermoplug integrally formed in the material specimen, and a method for making the same. The thermoplug is surrounded by a...
5025160 Measurement of flow velocity and mass flowrate  
Time varying measurements indicative of the ratio of mass absorption coefficients of the components of a multiphase flow containing at least two liquid phases at two spaced apart locations are...
4974245 System for the assembly of a metal joining piece and a high pressure composite material tube notably applications for equipment used in the oil industry  
Device to permanently link a metal joining piece and a composite material tube, to a tube subjected to static pressure up to 150 MPa. The assembly consists of a metal part constituting a sealing...
4971077 On-line tobacco evaluation system and method  
The present invention comprises a product moving apparatus for moving a tobacco product, a vertical feeder tube for metering the tobacco product onto the product moving apparatus at a...
4941778 Method and apparatus for measuring and regulating the flow rate of powder in a powder spraying device  
An apparatus and method for accurately determining the quantity of powder flowing in a spraying device includes a power density measuring element for measuring the powder density of the powder/gas...
4912332 Non-destructive methods for detecting organic deposits and removing them  
A non-destructive method for the early detection of the formation of orga deposits or a biofilm on the internal surface of a conduit through which a fluid passes comprises allowing the fluid to...
4896532 Method of detecting turbulence in laminar air flow  
A laminar air flow is directed through a space and becomes turbulent upon encountering objects in the space. In order to enable the turbulence in the air flow to be visualized, laminar streams of...
4850001 Orifice blockage detection system  
A method and apparatus for detecting blockage of an orifice, such as slag tap of a gasifier, by positioning at least one radiation source and detector in diametrically opposing positions outside...
4835390 Apparatus and method for measuring bulk density using positron scattering and annihilation  
A device for monitoring the bulk density and/or mass flow rate of a material within a vessel using positron scattering and annihilation radiometry techniques. The positron source is disposed on...
4825072 Method and apparatus for determining well fluid flow velocity using a nonradioactive tracer  
Method of determining the flow velocity of fluid flowing within the borehole of a well, traversing subsurface formations of the earth, with a nonradioactive tracer. A population of neutrons is...
4807990 Laser fluorescence velocimeter  
A method and apparatus are disclosed for measuring a velocity component of a moving fluid. Coherent light at two different wavelengths is directed into the moving fluid to create a space-and-time...
4752690 Method and apparatus for detecting incongruities, such as air bubbles, in fluid material  
Apparatus for detecting contaminants, including emboli, in a blood sample prior to blood cell analysis, wherein fluid density sensors are arranged on opposite sides of a fluid segmenting valve to...
4618939 Nuclear densometer  
A system for quickly indicating changes in density of a flow of material using a radiactive source and detector where the count rate indicative of density is processed for sensing significant...
4520677 Solids mass flow indication with radiation  
Method and apparatus for indicating mass flow of a solid particulate material through a rotary feeder. A radiation source and detector are positioned in a manner whereby radiation flux is directed...
4515896 Fluorescent additives for the determination of condensed and vapor phases in multiphase systems  
A method for determining the spatial and phase distribution of a liquid-vapor multiphase fluid. The method comprises adding a fluorescent monomer and a quencher to the fluid to be studied. The...
4449400 Radionuculide counting technique for measuring wind velocity and direction  
An anemometer utilizing a radionuclide counting technique for measuring both the velocity and the direction of wind. A pendulum 12 consisting of a wire 13 and a ball 14 with a source of radiation...
4314241 Coal pipe monitor  
Method and apparatus for monitoring the flow of coal from a bunker through a conduit to a coal feeder. A radiation sensitive detector detects the amount of coal present at a zone of the conduit...
4288230 Method and a device for the production of a solid-forming or foam-forming flowable reaction mixture  
The present invention relates to a process and apparatus for preparing flowable reaction mixtures. The process comprises (a) measuring the volumetric rate of flow of at least one of said reactants...

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