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WO/1994/020825 |
The invention provides an improved method and apparatus, for measuring gas flow velocity. The invention is particular well suited for use in measuring flow velocity of noxious and/or explosive gases in a corrosive environment such as lan...
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WO/1994/017369 |
A portable, battery powered, hand-held system for releasing a controlled dose of aerosol medication for inhalation by a patient including a durable body (2) and a medication cassette (4) inserted in the durable body (2). The cassette (4)...
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WO/1994/017368 |
The invention relates to a device for measuring discharges in partly or completely filled ducts or open channels, utilizing measuring sensors. The device comprises a central simulation system (CS), comprising a numerical model and a high...
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WO/1994/014037 |
The microwave-operated level gauge contains an aerial for transmitting waves to the surface of contents, the level of which is to be measured, and for receiving the echo waves reflected from the surface and a reception and evaluation cir...
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WO/1994/008214 |
Known devices for determining and/or monitoring a predetermined filling level have a sensor excited by an electronic exciting circuit over a piezoelectric exciting and receiving transducer to produce mechanical vibrations at its self-res...
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WO/1994/008215 |
The device for finding and/or monitoring a predetermined level of contents of a container comprises a sensor for the level of the contents of the container to be monitored which contacts the contents when the predetermined level is reach...
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WO/1994/004890 |
In order to improve the accuracy of the measuring results of ultrasonic flow meters each individual flow meter is tested and adjusted prior to taking the flow meter in use. The adjustment of the flow meter comprises providing through the...
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WO/1994/003781 |
Apparatus for determining deviation of a volume of liquid from a predetermined volume comprises a main vessel (4) for receiving the liquid and a measuring vessel (5) from which the deviation is determined from the meniscus of the liquid ...
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WO/1994/001764 |
A controller (16) adapted for coupling a plurality of ultrasonic transducers (12, 14) includes a multiplexer (62) for selecting a transducer (12, 14), signal processing means (50) for processing an output of the selected transducer (12, ...
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WO/1993/025953 |
The present invention is a system (100) and method for improved processing of flow data signals to provide output flow data signals which better approximate the true flows being measured. The general approach on which the invention is ba...
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WO/1993/022630 |
The invention concerns a device for testing the operability of a system for detecting heat-radiating, e.g. glowing or red-hot, particles carried in a particle stream, the device having at least two detectors (5) spaced a certain distance...
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WO/1993/020956 |
The present invention comprises a method for measuring the amount, i.e., mass, of a volatile liquid which comprises passing the mass (18) over a heat loss measuring device (6, 8), calculating the amount of heat loss accompanying the vapo...
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WO/1993/017307 |
A mass flow prover suitable for calibrating flow meters for oil comprises volume proving means for receiving a defined volume of fluid defined by the positions of first and second signal means from a continuously flowing stream of fluid,...
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WO/1993/017306 |
Methods and apparatus for accurately determining the volume of a pipette using a photometer. A reagent system for use with the photometer includes a first container holding a reference solution and at least one second container holding a...
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WO/1993/012409 |
A system for calibrating a flow sensor composed of two heat sensors (2, 4) each having an electrical impedance which varies as the temperature of the heat sensor and disposed in thermal communication with a fluid such that the relation b...
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WO/1993/012405 |
In order to achieve a rectilinear throughflow during volumetric detection of the fuel distributed during a motor vehicle fuelling process, a screw rod counter (6) that operates as a liquid measuring motor is arranged in the feeding path ...
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WO/1993/009409 |
A volume sensing system (100) includes electronic circuitry (150) which is electrically connected to an ultrasonic transducer (110). The transducer is affixed by means of an adaptor to the base of a container having a known configuration...
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WO/1993/006441 |
A method of correcting measurement errors of an instrument for measuring the flow of a gas, the instrument having a selected measuring range and being constructed to produce a reading indicating the value of a gas flow in the selected me...
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WO/1993/005368 |
An electromagnetic flowmeter for water conveyance in a semifull state, whose measurement error caused by the inclination of a pipeline can be reduced. In the flowmeter, excitation coils U and L provided on the upper and lower sides of a ...
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WO/1993/005367 |
An electromagnetic flowmeter for water conveyance in a semifull state, whose measurement error caused by the change of the conductivity of a fluid can be reduced. A main body section (24) of the flowmeter has two excitation coils (Cu, Cl...
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WO/1993/003340 |
A time gate ultrasonic sensor (10) measures a physical property of a material, such as the presence of the material, within a defined space (20). The sensor (10) includes at least one transducer (14, 16) connected to a support structure ...
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WO/1993/000574 |
A method and apparatus for calibrating a multiple port metering pump includes a graduated scale (152) mounted on the head (10) of the pump and an indicator (200) mounted on the body (12) of the pump, whereby the angular orientation of a ...
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WO/1992/021941 |
A positive displacement flowmeter which includes a cylinder (12), a piston (10) within the cylinder (12) which makes a clearance seal with the inside of the cylinder, an encoder (40) and a control valve (V) for controlling the supply of ...
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WO/1992/020578 |
Electrical contact is made between an electrode (24) and a liquid column (20) to establish current flow between the electrode and the liquid column. The electrode is raised up to the liquid column until electrical contact is broken. An a...
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WO/1992/021006 |
An apparatus for translating a mass flow meter signal is connected to a mass flow meter of a mass flow controller and to a host process control system and includes a microcontroller which receives flow controller command calibration sign...
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WO/1992/020006 |
An apparatus for sensing a mass flow rate of a fluid in a thermal mass flow meter has a sensor tube. The sensor tube has a tube for carrying the fluid flow at the flow rate to be sensed. A temperature responsive member is disposed in goo...
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WO/1992/018835 |
An ultrasonic transmitter (E) is subjected to two different wave modes and mounted on a support (2) which simultaneously forms a waveguide. When the transmitter is driven at its axial resonance frequency, ultrasonic waves are transmitted...
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WO/1992/017339 |
A method of metering the volume of a liquid, e.g. ink, supplied by a positive displacement pump (10) to a usage station (14), such as a printing press, monitors each stroke of the pump (10) to determine whether the stroke is productive a...
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WO/1992/015847 |
A device associated with a given container is provided for determining the volume V of liquid in the container on the basis of the height h of this liquid, and comprises a memory (50), specific to each container, integrated in a central ...
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WO/1992/015353 |
Apparatus and methods for delivering an amount of aerosolized medicine for inspiration by a patient in response to the occurrence of appropriate delivery point or points in the patient's detected breath flow. The aerosol medication may b...
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WO/1992/002787 |
The invention relates to a process and device for the conveying-current controlled, viscosity-independent and metered filling of containers with pourable media. According to the invention, the time taken to fill the volume of a filler pi...
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WO/1992/001908 |
A method of measuring the flow rate of a liquid in a two-phase fluid and of determining the void fraction of a gaseous content of the fluid uses a turbine flow meter (16) which has been calibrated in terms of liquid flow rate against rot...
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WO/1991/018266 |
Apparatus for measuring the volume of liquid (2) in a vessel (1) such as a post-fermentation tank comprises, a pressure detector (3) for measuring the pressure of the liquid at the base of the vessel, a pressure detector (4) for measurin...
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WO/1991/005225 |
An electromagnetic flowmeter with conventional orthogonal electrode and magnetic axes (x, y) intersecting the flowtube axis (z) has its electrodes constituted by two pairs (1, 2, and 3, 4) of electrodes mounted in insulating tubing (5) o...
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WO/1991/000988 |
The invention relates to a calibration apparatus for control of propellant pumps, especially in the traffic sector, which apparatus is placed on a vehicle, especially a trailer. The apparatus (1) has at least one standard (10) for measur...
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WO/1990/014623 |
A device for dispensing disinfectants into washing liquors by means of a dispenser is to dispense the correct quantity of disinfectant in function of the dirt to be removed so that adequate but not excessive quantities of disinfectant ar...
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WO/1990/004758 |
A flow meter prover (10) having a chain drive piston return mechanism (55) is disclosed. The prover has a fluid displacement measuring cylinder (16) connected in series with a flow meter (12) to be tested. A piston (22) is adapted to tra...
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WO/1990/004757 |
A dynamic leak detector (48-88) is connected to a fluid flowmeter prover (10). The prover has a measurement chamber (16) with a fluid inlet (12) and a fluid outlet (14) and a barrier (18) which moves axially through the chamber between t...
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WO/1989/012804 |
An arrangement for detecting cycles of operation of a positive displacement diaphragm gas meter sets up a magnetic field which is directed through the non-magnetic housing of the meter toward an internal cyclically moving ferromagnetic e...
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WO/1989/011917 |
A dusting apparatus for applying a very thin powder coating on printed products has a dosing device which produces a free-falling powder stream (144). The fall section can be moved out of the working line of a measurement gate (36, 38) b...
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WO/1989/010685 |
A device for automatically measuring the quantity of milk extracted by a milking installation comprises a float-type counter (1) for the milk (3), connected to a vacuum milk line (23) and to a vacuum milk receiver (25) connected to a vac...
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WO/1989/003513 |
A process for measuring the degree of curvature of an opening-defining, annular plate (27) which projects radially inwards into a medium flow pipe (15), comprises measuring by varying differential pressures over said annular plate. The m...
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WO/1987/007017 |
Moveable fluid barrier (16) is driven from an upstream position to a downstream position through a measuring cylinder (18) connected fluidically in series with the flowmeter (22) under test to induce fluid flow therethrough at a flow rat...
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WO/1987/001446 |
To achieve accurate calibration and diagnosis of an hydrostatic tank gauge system comprising pressure sensors (P1, P2) connected to tank (1) at levels separated by height (H) a stand pipe (10) of flexible tubing is arranged to be connect...
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WO/1987/000622 |
A mechanical displacement flowmeter calibrator has a first fluid line external of the measuring cylinder of the calibrator connected between the inlet and outlet thereof. A flowmeter that produces flow-representative pulses is connected ...
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WO/1987/000267 |
A method and apparatus for calibrating a sensor output that includes a logic unit (11) for receiving uncalibrated sensor signals from a sensor (13) and for receiving data from a data base unit (12) regarding test points that relate to th...
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WO/1986/007146 |
A meter prover for calibrating a flow meter has an inlet chamber (36), an outlet chamber (28) and a cylindrical displacement body (42) movable through an aperture (16) between the chambers. The prover is connected in series with the flow...
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WO/1985/005177 |
A method and apparatus for calibrating a liquid level measurement system of the type having capacitive sensors, by simulating the electrical effects of sensors in an empty condition and their interconnecting cables, at a time when the se...
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WO/1984/002185 |
A meter prover has a piston (40) slidably engaged within a proving cylinder (22) which is in turn coaxially supported within a cylindrical shell (14). In a proving run, flow from the meter to be proved is diverted by closure of a bypass ...
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WO/1983/004434 |
In connection with a method for calibrating cylindrical tanks for determining the volume thereof, it is suggested to establish a number of survey stations (A, B, C) for the fixing of a base polygon by measuring the distance between said ...
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