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WO/2001/007875 |
A method for testing a Coriolis transducer (10) having a mass (14) adapted to vibrate along a vibratory direction, here axis (21), in a resonant structure (47) and undergo a displacement along a sensitive axis (27) perpendicular to the v...
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WO/2001/004586 |
A method and apparatus for monitoring a fluid storage and dispensing system such as a fuel storage tank includes a dispensing apparatus which dispenses a quantity of fluid from the system based on an authorization, e.g., provided by a fu...
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WO/2000/068649 |
A flow rate measuring device comprising flow rate detection means (2, 3) provided in a fluid flow path (1), a measuring means (10) for measuring outputs from the flow rate detection means (2, 3), a cycle setting means (9) for setting mea...
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WO/2000/065316 |
A system (10) for accurately dispensing controlled amounts of viscous material. The system includes a pressurized supply (14) of the viscous material, a dispenser (12) connected with the pressurized supply (14) and a feedback control (26...
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WO/2000/060320 |
A device for remotely calibrating leak sensors is disclosed. The leak sensor calibration device includes a reservoir for storing a fluid calibrant, a conduit in flow communication with the reservoir, an outlet nozzle, an air supply sourc...
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WO/2000/058696 |
A flow meter calibration system (100) uses a plurality of Coriolis effect mass flow meters (216, 218, 220, 222, 324, 326, 328, and 330) formed in two arrays (112, 116) to calibrate a meter under test (114). The method of system operation...
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WO/2000/057138 |
A non invasive method and apparatus (10) is provided to measure the mass flow rate of a multiphase fluid. An accelerometer (20) is attached to a pipe (22) carrying a multiphase fluid. An analysis of the signal produced by the acceleromet...
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WO/2000/049373 |
Apparatus for controlling a volume of liquid from a controllable source of liquid dispensed by a liquid-dispensing system having at least one liquid dispenser that dispenses liquid at a first flow rate, the apparatus comprising: a liquid...
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WO/2000/034744 |
A process variable transmitter (10) providing a transmitter output representing a process variable (14) sensed by a sensor (18). The transmitter (10) has a filter with a bandwidth which is automatically adjusted based on noise detected i...
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WO/2000/012973 |
A system and method for calibrating a measurement device used to indicate a level of a free-flowing material within a container. A system includes first and second signal generators operatively associated with a measurement device for in...
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WO/2000/011437 |
A device (10) for measuring and monitoring the volume of liquid in a container comprises an adapter (24) for mounting the device in an opening in the top wall of the container. The adapter (24) supports a beam onto which one end of a flo...
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WO/2000/009767 |
A device and method for determining the menisci and depths of molten steel and slag in metallurgical vessels are described. The device describes an electrically conductive ceramic probe having a tapered distal end and a proximal end, ele...
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WO/1999/060342 |
According to the method provided for by the invention, to obtain accuracies of around 0.75 % of the measurement value, a digital, two-dimensional overall image of the baffle body (7), the interior surface (4) of the measuring tube (2) in...
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WO/1999/039164 |
A System for validating a flow calibration factor for a Coriolis flowmeter. In accordance with the present invention, the period of oscillation of a flow tube is measured as a material of a known density flow through the flow tube. The p...
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WO/1999/030118 |
Method and device for checking and calibrating level gauges and switches for tanks under pressure, in which the level gauge or switch (4) is fluid isolated from the tank (3) by the closing of valves (11, 12) and the tank otherwise is in ...
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WO/1999/024793 |
A liquid level detector (25) for detecting the level of a liquid container has a housing (50), a bellows (53), an elastic member (121), a drive mechanism (112) and a sensor (62). The bellows (53) is carried within the housing (50) and di...
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WO/1999/019696 |
The invention relates to a device and a method for calibrating hydraulic flow-rate measuring systems, characterised by a receptacle which is connected to the flow-rate measuring system and which can be filled with a hydraulic medium. A c...
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WO/1998/054553 |
A batch delivery system that provides material overfill compensation to deliver a precise amount of material from a source to a destination. The system can also detect possible malfunction of a flow control means such as a valve or a pump.
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WO/1998/052000 |
The invention relates to a method and a device for measuring the flow of flowing media, particularly liquid media, in accordance with the Coriolis measuring principle. The method is characterized in that the medium flows through a meter ...
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WO/1998/048249 |
When checking supply meters, specially water meters in houses and in apartments, it is quite useful to carry out monitoring or checking or adjustment on the spot. As a general rule, this involves a considerable amount of equipment to mea...
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WO/1998/040700 |
The invention relates to a device for measuring hydraulic discharge and leakage in a test piece, comprising a measuring section configured as an inflow pipe approximately perpendicular to the test piece and a capacitive sensor located on...
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WO/1998/028670 |
The invention relates to a flow regulation fitting (1) for regulating volume flow in pipelines, characterized in that at least one sensor (6), integrated in a flow housing, detects the volume flow and is connected with an evaluation unit...
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WO/1998/022784 |
The invention relates to a method for the self-compensating measurement of volume flow rate of gases, with a gas flow passage (1) and a first (2) and a second flow meter device (3) for measuring the volume flow rate. The second flow mete...
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WO/1998/020308 |
In a method for determining the volume of fuel being dispensed from a fuel pump unit, a correction of the number of pulses generated by a pulse generator corresponding to the volume flow rate when dispensing fuel is carried out. The purp...
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WO/1998/020307 |
A calibratable apparatus for determining the volume of fuel being dispensed from a pump fuel unit comprises a pulse generator (2), which is adapted to generate pulses corresponding to the volume flow rate when dispensing fuel, and means ...
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WO/1997/046851 |
In a flow measurement system (11) comprising a primary flow sensor (10) and a secondary electronic conversion apparatus for converting high and low fluid pressure signals from the primary flow sensor to an electronic signal output repres...
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WO/1997/040351 |
The invention discloses a method for detecting water meter malfunction and calculating the duration thereof, characterized in that it comprises measuring the average flow rate for each volume unit detected after the preceding volume unit...
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WO/1997/019329 |
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 (14) in fluid connection with the gas source ...
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WO/1997/008515 |
An open-channel flowmeter is calibrated by the use of local velocity and level characteristics existing at a given site, as measured by the flowmeter itself. Stored reference relationships that have been either theoretically or experimen...
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WO/1997/001745 |
A measurement process is proposed for dosing systems with reservoirs. The proposed process uses an optical device (12, 13, 14, L) to which are assigned a light barrier (L) which passes through the flow path and a measurement and display ...
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WO/1996/038717 |
An apparatus and method are provided for calibrating manifolded liquid storage tanks. The apparatus includes sensors disposed within the tanks for sensing the liquid levels in each of the tanks and a metering device for measuring the amo...
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WO/1996/037758 |
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 flowmeter measures correctly or not, the...
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WO/1996/010733 |
A flow sensor, in particular suitable for use in air flow measuring, comprising an impeller which is suspended for free rotation in a tube section and which comprises a central core and a number of blades extending from the core, at leas...
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WO/1996/007875 |
An ultrasonic probe for determining fluid volume and/or leakage in an underground storage tank (1), as well as monitoring fluid inventory. The probe having calibration reflectors (25) positioned such that secondary echo packets formed by...
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WO/1996/007933 |
A method for determining the level of a fluid in a tank including the steps: (i) synchronizing the firing signal and/or start signal from a synchronizer (101) to a pulser (103) and/or timer with the rising edge of a clock cycle; (ii) amp...
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WO/1996/007934 |
An ultrasonic ranging system for measuring the fluid level in a container. The system includes a probe having an elongated body, calibration reflectors, a synchronizer (101) connected to a clock (102) and a pulser (103). The improvement ...
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WO/1996/004630 |
A high reliability instrument system includes a test generator (26) for applying a test condition signal (29) to the instrument (10) and for determining whether the instrument (10) properly responds to the test condition, and apparatus (...
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WO/1996/002811 |
A method and apparatus for providing calibrated and linearized flow sensors for VAV systems with the sensor corrected for device/electronic/drift/and field air turbulence characteristics using factory calibrated flow or pressure sensors ...
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WO/1995/027884 |
The invention concerns a process for checking the tolerance of measured values displayed on measuring apparatus, such as electricity meters and water meters, wherein the front of the measuring apparatus is recorded (9) by an optical reco...
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WO/1995/022743 |
System and method for monitoring a fluid flow in a dialysis machine, comprising: constant flow means (4, 5) for feeding the dialysis fluid to a dialyzer (3) and for feeding the dialysis fluid from the dialyzer to a waste or similar. Each...
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WO/1995/021432 |
A hydraulic leak detecting system adapted to a self-propelled vehicle or machine to detect leaks and alarm. The system includes a reservoir (18), a connecting tube (52) connecting the reservoir (18) to an expansion tank (16). Expansion t...
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WO/1995/020749 |
The device proposed determines when the contents of a container reach a given level and/or monitor this level by means of a level sensor comprising a mechanical oscillator system, an electromechanical excitation transducer and an electro...
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WO/1995/019549 |
Method and apparatus for determining a mass rate of flow of gas by a rate of change of pressure which includes an inlet (14) for communicating a flow of gas from a source of gas whose mass flow rate is to be measured. A volumetric contai...
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WO/1995/016190 |
An ultrasonic level instrument (10) detects the presence of a fluid at a defined location and provides a self-diagnostic integrity check. An excitation circuit (16, 18, 22) simultaneously induces vibrations at a first and second frequenc...
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WO/1995/016229 |
An arrangement for dosing fluids, in particular liquid fluids such as beverages, has a flowmeter arranged in the fluid dosing duct, in particular an impeller flowmeter, an on-off, preferably electric valve arranged in the dosing duct, fo...
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WO/1995/014217 |
Procedure and apparatus for the calibration of an apparatus measuring the level of a liquid in a container (1), which measuring apparatus uses a cylindrical float (5) of the buoyancy type placed in the container (1) and having a height a...
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WO/1995/010311 |
The dialysis liquid circuit comprises a supply line (11) for the supply of fresh dialysis liquid, said line being connected to an inlet of a first compartment (2) of a dialysing apparatus (1), the line being provided with first means (14...
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WO/1995/006858 |
An ultrasonic liquid level sensor (40) inlcudes an ultrasonic coupling element (42) for use in self testing. The sensor (40) includes a gap (20) and a pair of transducers (14, 16) spaced apart by the gap (26). The sensor (40) senses pres...
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WO/1995/002806 |
A method for in situ calibration of a flow meter (10) under test installed in a pipe involves positioning a pre-calibrated insertion meter (20) within the bore of the pipe in series with meter (10) and using the output from the insertion...
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WO/1995/002166 |
A reagent system for accurately determining the volume of a pipette using a photometer is disclosed. The reagent system for use with the photometer includes a first container holding a reference solution and at least one second container...
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