| Patents for G01F 25 - Testing or calibrating of apparatus for measuring volume, volume flow, or liquid level, or for metering by volume (5,338) |
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| 05/30/2002 | WO2001090704A3 Electrical leakage diagnostics in a magnetic flow meter |
| 05/29/2002 | DE10058701A1 Device for testing a mass flow meter comprising a plate with a number of holes in it, arranged upstream of a flow meter with some of the holes inclined to the pipe axial to promote swirling flow |
| 05/29/2002 | CN1351709A Flowmeter calibration system with statistical optimization technique |
| 05/29/2002 | CN1351708A Pressure activated calibration system for chemical sensors |
| 05/23/2002 | WO2002040165A1 Device and system for dispensing or aspirating/dispensing liquid samples |
| 05/23/2002 | WO2002040163A1 Device for the take-up and/or release of liquid samples |
| 05/23/2002 | WO2002040162A1 Device for aspirating and dispensing liquid samples |
| 05/23/2002 | WO2002040161A1 Method and device for determining the volume of a sample of a liquid |
| 05/23/2002 | WO2002040160A1 Device and method for separating samples from a liquid |
| 05/22/2002 | EP1206967A2 System and method for taking up and/or dispensing liquid samples |
| 05/22/2002 | EP1206966A1 Device for aspirating and dispensing liquid samples |
| 05/22/2002 | CN1350634A Flow rate measuring device |
| 05/21/2002 | US6389891 Method and apparatus for establishing and/or monitoring the filling level of a medium in a container |
| 05/17/2002 | CA2363475A1 Method and device for determining the volume of a liquid sample |
| 05/17/2002 | CA2363301A1 Device for aspirating and dispensing liquid samples |
| 05/17/2002 | CA2363300A1 Method and device for separating samples from a liquid |
| 05/16/2002 | WO2001090701A3 Conduction indication in a magnetic flowmeter |
| 05/16/2002 | DE10054199A1 Testing of an airflow meter used with a motor vehicle combustion engine to ensure its correct operation by switching off exhaust gas recirculation and then measuring airflow and comparing it with a stored value |
| 05/10/2002 | WO2001007875A9 Coriolis effect transducer |
| 05/07/2002 | US6382011 Apparatus for providing leakage calibration in packages |
| 05/02/2002 | WO2002035186A1 Device and method for system and process supervision in a magneto-inductive sensor |
| 05/02/2002 | WO2001090702A3 Spectral diagnostics in a magnetic flow meter |
| 05/02/2002 | EP1202031A1 Method and apparatus for process control using a magneto-inductive sensor |
| 04/30/2002 | US6378354 System for calibrating a drive signal in a coriolis flowmeter to cause the driver to vibrate a conduit in a desired mode of vibration |
| 04/25/2002 | US20020049549 Meter calibration accuracy |
| 04/24/2002 | CN1083572C Process control machine pulsed insertion plate |
| 04/17/2002 | EP1197732A1 Test device for Coriolis mess flow meter |
| 04/16/2002 | US6371147 Evaluation and regulation of the thermal power of a flow of combustible gas; characterization of a thermal mass flowmeter |
| 04/16/2002 | US6370936 Sampling apparatus for exhaust gas |
| 04/16/2002 | US6370935 On-line self-calibration of mass airflow sensors in reciprocating engines |
| 04/11/2002 | WO2000057138A9 Method and apparatus for measuring the mass flow rate of a fluid |
| 04/09/2002 | US6367306 Compensating method and device for instrumental error in positive displacement type flowmeter |
| 04/03/2002 | EP1193476A1 Flow rate measuring device |
| 04/03/2002 | EP1192428A2 Method and apparatus for in-situ calibration of quantity measurement of a fluid flowing in a channel |
| 04/02/2002 | US6363783 Alternative liquid environment measurement system and method |
| 04/02/2002 | US6363769 Method and apparatus for calibrating personal air samplers |
| 03/28/2002 | DE10045871A1 Multi-jet water meter with integral vane beaker and vane impeller with in situ calibration taking place using a known flow, so that a separate replaceable calibrated cartridge is not required |
| 03/27/2002 | EP1191312A2 System and method for optimization of parameters of liquid-handling instruments |
| 03/26/2002 | US6360579 Flowmeter calibration system with statistical optimization technique |
| 03/21/2002 | US20020035441 Scaled quadrature pulse signal generator |
| 03/07/2002 | US20020029130 Flow diagnostic system |
| 03/05/2002 | US6352001 Non-iterative method for obtaining mass flow rate |
| 02/28/2002 | WO2002016876A2 Gas meter calibration testing device |
| 02/21/2002 | WO2002014797A1 Self-normalizing flow sensor and method for the same |
| 02/06/2002 | EP0946910B1 Flow regulation fitting |
| 01/31/2002 | WO2002008703A1 A system for calibrating a drive signal in a coriolis flowmeter |
| 01/24/2002 | WO2001069189A3 Method and apparatus for in-situ calibration of quantity measurement of a fluid flowing in a channel |
| 01/23/2002 | EP1173735A1 Viscous material dispensing system and method with feedback control |
| 01/09/2002 | EP1169621A1 Pressure activated calibration system for chemical sensors |
| 01/03/2002 | WO2002001162A1 Method for predicting flow properties of powders |
| 01/02/2002 | EP1166056A1 Flowmeter calibration system with statistical optimization technique |
| 12/25/2001 | US6332358 Fluid-gauging system and methods |
| 12/25/2001 | US6332348 Gas flow calibration of mass flow controllers |
| 12/20/2001 | WO2001096819A1 Gas meter |
| 12/20/2001 | CA2412090A1 Gas meter |
| 12/19/2001 | EP1164361A1 Gasmeter |
| 11/29/2001 | WO2001090704A2 Electrical leakage diagnostics in a magnetic flow meter |
| 11/29/2001 | WO2001090702A2 Spectral diagnostics in a magnetic flow meter |
| 11/29/2001 | WO2001090701A2 Conduction indication in a magnetic flowmeter |
| 11/21/2001 | EP1156307A1 Method for calibrating the mass flow measurement of bulk material |
| 10/30/2001 | US6308553 Self-normalizing flow sensor and method for the same |
| 10/23/2001 | US6305232 Method of dry-calibrating vortex flow sensors |
| 10/18/2001 | US20010029777 Self-normalizing flow sensor and method for the same |
| 10/18/2001 | DE10017864A1 Testing water meters, involves determining pipeline and water meter hydraulic resistance and hydraulic resistance of at least one valve depending on control voltage before setting flow value |
| 10/18/2001 | DE10015639A1 Calibrating device for dynamic volume flow meter for hydraulic media e.g. in fuel injection system, determines impelled volume from impeller piston stroke |
| 10/17/2001 | CN2454765Y Standard testing apparatus for air-entrainment device of liquified petroleum gas |
| 10/04/2001 | WO2001073383A1 Method and device for detecting and/or monitoring the level of a medium in a container |
| 10/04/2001 | EP1139077A2 Fault condition monitoring of a fuel level sensor |
| 10/04/2001 | EP1139076A2 Fault detection of a fuel level sensor |
| 10/04/2001 | DE10015919A1 Verfahren und Vorrichtung zur Steuerung einer Brennkraftmaschine Method and apparatus for controlling an internal combustion engine |
| 09/27/2001 | WO2001071297A1 Continuous liquid flow system |
| 09/27/2001 | WO2001071295A1 Alternative liquid environment measurement system and method |
| 09/27/2001 | DE10014887A1 Fill-level determining device for a medium in a tank, has evaluation device that outputs fill-level signal based on signals input from two different fill-level measurement devices |
| 09/27/2001 | DE10014724A1 Liquid level and density monitoring method employed in food, chemical industry, involves evaluating vibration of vibrating rods arranged immersed in liquid at two different modes and recognizing mass change in rods |
| 09/25/2001 | US6295018 Low power radar level instrument with enhanced diagnostics |
| 09/20/2001 | WO2001069189A2 Method and apparatus for in-situ calibration of quantity measurement of a fluid flowing in a channel |
| 09/20/2001 | CA2377656A1 Method and apparatus for in-situ calibration of quantity measurement of a fluid flowing in a channel |
| 09/12/2001 | EP1131609A1 Device for measuring the volume of liquid in a container |
| 09/12/2001 | CN2447756Y Tax-control gasoline pump anolog measuring testing device |
| 08/16/2001 | EP1124117A1 Method for checking the level of a liquid measured by an electronic level indicator |
| 08/16/2001 | DE10005814A1 Checking liquid level measured by electronic level sensor involves activating first display if level difference less than/equal to defined value, second display if greater than/equal to level |
| 08/14/2001 | US6272911 Vehicle sensing system and method |
| 08/07/2001 | CA2056929C Flowmeter proving apparatus |
| 08/02/2001 | US20010010171 Quantity Gauging |
| 08/02/2001 | DE10103056A1 Mengenmeßsystem und -sonde Mengenmeßsystem and probe |
| 07/12/2001 | DE19963943A1 Test stand for capacitive filling level sensors for use in inflammatory or explosion-risk areas, has adjustable holder device electronic scales and filling body with upper and lower tanks |
| 07/05/2001 | WO2001048442A1 Mass flow apparatus for powdered and granulated solids and accumulated weight |
| 06/28/2001 | US20010004842 Method and apparatus for calibrating personal air samplers |
| 06/27/2001 | CN1067762C Flow meter and method of calibrating same |
| 06/20/2001 | EP1108988A1 Method and device for determining the throughput of a fluid in a measuring tube |
| 06/20/2001 | CN1299961A Method and apparatus for measuring flow-rate of medium in measuring tube |
| 06/13/2001 | EP0649529B1 Ultrasonic transducer for testing its integrity and/or measuring property of a material |
| 06/12/2001 | US6244094 Closed loop calibrator and process of calibrating a liquid metering device in a closed atmosphere |
| 06/07/2001 | WO2001040741A1 Method and device for measuring the through flow of gases and liquids |
| 06/07/2001 | DE19957956A1 Verfahren und Vorrichtung zur Durchflußmessung von Gasen und Flüssigkeiten Method and apparatus for flow measurement of gases and liquids |
| 06/05/2001 | CA2240484C Method and apparatus for detecting and controlling mass flow |
| 05/16/2001 | EP1099941A1 Method for determining the weights of fluid units, weighing device as well as its use |
| 05/15/2001 | US6230934 Method for measuring and delivering hyper-concentrated liquids |
| 05/10/2001 | DE19947992A1 Flowmeter inspection method for flowmeter build into pipeline system, involves comparing detected measurement result of flowmeter with input signal corresponding to amount of fluid flowing in pipeline system |
| 05/08/2001 | US6227031 Method and apparatus for calibrating gas samplers |