Patents
Patents for G01F 25 - Testing or calibrating of apparatus for measuring volume, volume flow, or liquid level, or for metering by volume (5,338)
02/1998
02/11/1998CN1172948A Dry checking method for ultrasonic flowmeter and its device
02/11/1998CN1172947A Flow meter and method of calibrating same
02/10/1998US5717383 Device for determining and/or monitoring a predetermined level of contents in a container
01/1998
01/20/1998US5710370 Method for calibrating a differential pressure fluid flow measuring system
01/14/1998EP0711404B1 Reagent system for calibration of pipettes and other volumetric measuring devices
01/14/1998CN2272570Y Automatic test and record instrument for data and fault
01/08/1998DE19626865A1 System for measuring fluid velocity using sound pulse transit times
01/07/1998EP0816284A1 Device for checking the quantity of gasolines, diesel fuels, fuels or liquids in general, during their introduction in tanks or containers in general
01/06/1998US5705733 Apparatus for monitoring liquid levels and methods for calibrating same
12/1997
12/30/1997US5703569 Retrofit hydraulic fluid leak detection system
12/23/1997US5700950 Prover adapter for a fluid metering device
12/13/1997CA2207463A1 Prover adapter for a fluid metering device
12/11/1997WO1997046851A2 Method for calibrating a flow measuring system
12/09/1997US5695092 In a treatment system
12/03/1997EP0555493B1 Electromagnetic flow meter for water in not-full state
11/1997
11/19/1997EP0807804A2 Method for calibrating a differential pressure fluid flow measuring system
11/18/1997US5689265 Device for measuring a level of material using microwaves
11/12/1997EP0806718A1 Apparatus for calibrating a flow control device
11/12/1997EP0805958A1 Flow sensor
11/04/1997US5684250 Self-calibrating open-channel flowmeter
11/04/1997US5684246 Method and apparatus for improved flow rate measurement and calibration
11/04/1997US5684245 For containing a gas whose mass is to be measured
10/1997
10/30/1997WO1997040351A1 Method for detecting water meter malfunction, calculating the duration thereof, and device for implementing same
10/23/1997DE19615838A1 Production automation method especially water meters
10/15/1997EP0614519B1 Device for determining and/or monitoring a predetermined level of contents of a container
09/1997
09/18/1997DE19627269C1 Fluid volume standardisation unit measuring e.g. diesel or petrol delivery
09/17/1997EP0795740A1 Self testing optical liquid level sensor
09/17/1997EP0795515A1 Method and apparatus for monitoring and/or calibration of piston flowmeters in petrol stations
09/17/1997CN1159571A Electromagnetic flow measurer and method for amendment of flow
09/13/1997CA2199927A1 Self testing optical liquid level sensor
09/11/1997DE19608880A1 Display device for installation unit of closed fluid container esp. vehicle fuel tank
09/09/1997US5665910 Liquid chemical applicator measuring device
09/09/1997US5665895 Apparatus and method for calibrating a storage tank
09/03/1997EP0792441A2 Self-calibrating open-channel flowmeter
08/1997
08/21/1997DE19605652A1 Ultrasound flowmeter calibration method
08/12/1997US5656784 Fluid density variation compensation for fluid flow volume measurement
08/12/1997US5655516 Delivery of aerosol medications for inspiration
07/1997
07/31/1997DE19602655A1 Monitoring filling level control unit for bottles for drinks production line e.g. water, beer
07/30/1997EP0786648A1 Flow meter and method of calibrating same
07/29/1997US5652393 Method for collecting pressure data from a fuel tank
07/29/1997US5652392 Apparatus for collecting pressure data from a fuel tank
07/15/1997US5648605 Flowmeter calibration method
07/09/1997EP0783098A1 Device for measuring the effective differential pressure of a gas stream
07/01/1997US5644299 Ultrasonic material level measurement
06/1997
06/10/1997US5636548 Analog hall-effect liquid level detector and method
06/04/1997CN2255610Y Sound-speed corrector for supersonic measuring of oil-tank level
06/03/1997US5635621 Apparatus for calibrating a fuel level detector
05/1997
05/29/1997WO1997019329A1 System for measuring a gas mass flow
05/28/1997DE19544071A1 Fill quantity measuring method in standard container, esp. waste container
05/22/1997WO1997008515A3 Self-calibrating open-channel flowmeter
05/07/1997EP0771407A1 On-site calibration device and method for nonlinearity correction for flow sensor/transmitter
05/07/1997DE19541167A1 System for calibrating measurement of material flow on agricultural working machine
05/06/1997US5627304 Liquid level measuring arrangement
05/06/1997US5626052 Method for collecting liquid level data
05/02/1997EP0770859A1 Calibration method for filling level measurement
05/02/1997EP0626063B1 Microwave-operated level gauge
04/1997
04/29/1997US5625343 Device for determining and/or monitoring a predetermined filling level
04/29/1997US5625155 Method of measuring a flow rate of a fluid flowing through conduit means
04/16/1997EP0657021B1 Flow meter
04/15/1997US5621393 Fill-level test and measuring device
04/09/1997CN2251715Y Hydraulic flowmeter on-line checking device
04/01/1997US5616867 Methods and apparatus for determining a minimum acceptable volume of fluid flow through a conduit
03/1997
03/25/1997US5613778 Method for collecting liquid temperature data from a fuel tank
03/25/1997US5613398 Smart fuel tank module
03/18/1997US5611623 Apparatus for collecting liquid temperature data from a fuel tank
03/18/1997US5611239 Adapted to detect level /change of products in a storage vessel
03/06/1997WO1997008515A2 Self-calibrating open-channel flowmeter
03/05/1997EP0760466A2 Electromagnetic flow rate measuring apparatus and method for compensating the measured flow rate
03/04/1997US5608647 Method for releasing controlled amount of aerosol medication
02/1997
02/25/1997US5606514 Cyclic signal processing
02/25/1997US5606109 Liquid volume measuring apparatus
02/18/1997US5604684 Embedded programmable sensor calibration method
01/1997
01/23/1997DE19526838A1 Test system for testing and/or calibrating tank measuring unit of fuel tank
01/22/1997EP0754292A1 Process for checking the tolerance of measured values
01/16/1997WO1997001745A1 System for determining whether or not a dosing system reservoir is empty
01/14/1997US5594667 Method and apparatus for baseline drift correction for a sensor
01/14/1997US5594666 Mass flow control system
01/02/1997EP0557529B1 Electromagnetic flowmeter for water conveyance in semifull state
01/02/1997DE19523780A1 Leer-Erkennung eines Vorratsbehälters bei Dosiersystemen Empty recognition of a reservoir for dispensing
12/1996
12/17/1996US5586085 Container and adaptor for use with fluid volume sensor
12/17/1996US5586045 Method of calibrating a high resolution flowmeter and measuring volume flow
12/10/1996US5583790 Computerized liquid flow-valve monitoring and control unit
12/05/1996WO1996038717A1 An apparatus and method for calibrating manifolded tanks
12/05/1996CA2222435A1 An apparatus and method for calibrating manifolded tanks
12/04/1996EP0745213A1 System and method for monitoring a fluid flow in a dialysis machine
11/1996
11/28/1996WO1996037758A1 Method and devices used in flow measurement
11/13/1996EP0741895A1 Hydraulic fluid lead detection system and method
11/12/1996US5574229 Electronic water meter with corrections for flow rate
10/1996
10/22/1996US5568449 Methods and apparatus for use in ultrasonic ranging
10/22/1996CA2043684C Liquid level sensing device
10/15/1996US5564305 Apparatus and method for controlling the rate of flow of a liquid
09/1996
09/25/1996EP0733232A1 Fluid dosing arrangement and beverage dispensing system provided with such a dosing arrangement
09/24/1996US5559279 Method and apparatus for dynamic calibration of a flow monitor
09/18/1996EP0572621B1 Device for measuring the amount of liquid in the gasoline pumps of motor vehicle service stations
09/17/1996US5557041 Modified water meter arrangements
09/11/1996EP0731342A2 Method for monitoring fluid level in a container
09/11/1996CN2235114Y Checking device for vortex street flow sensor
09/10/1996US5553493 High resolution flowmeter with wear detection
09/10/1996US5553479 Threshold level calibration method and apparatus
09/05/1996DE19528915C1 Cylindrical liquid storage tank filling level/filling vol. characteristic determination method
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