| 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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| 08/30/2012 | CA2864117A1 Calibration tube for multiphase flowmeters |
| 08/29/2012 | CN202403774U Multiphase flow simulated experiment signal generation device |
| 08/29/2012 | CN202403773U On-line verification/ calibration device for open channel flow meter |
| 08/29/2012 | CN102650538A Combined measurement system for automobile fuel consumption and calibration method for oil tank liquid level sensor of |
| 08/29/2012 | CN102128667B Test device for oil volume calibration of large oil tank |
| 08/28/2012 | US8251081 Device for metering fluids |
| 08/23/2012 | US20120210768 Calibration Tube for Multiphase Flowmeters |
| 08/22/2012 | EP2489995A1 Detector of the presence of a liquid. |
| 08/22/2012 | EP2488833A1 Device for detecting a blockage of a mechanical fluid meter, and meter featuring blockage detection |
| 08/22/2012 | CN202393468U Liquid level meter calibration device based on linear sliding table |
| 08/22/2012 | CN202393467U Movable type bidirectional pipe prover flow verification device |
| 08/22/2012 | CN202393466U Device for calibrating and testing full-automatic serial belt pressure-resistant water meters |
| 08/22/2012 | CN202393465U Gas retention barrel for gas meter detection device |
| 08/22/2012 | CN202393457U Device for determining distance departing from surface by using electromagnetic pulse |
| 08/22/2012 | CN102128665B Device for detecting accuracy of mechanical water meter |
| 08/16/2012 | WO2012108992A2 Determining delay times for ultrasonic flow meters |
| 08/16/2012 | WO2011134470A3 Ultrasonic flow meter |
| 08/16/2012 | US20120204620 Determining delay times for ultrasonic flow meters |
| 08/16/2012 | CA2826869A1 Determining delay times for ultrasonic flow meters |
| 08/15/2012 | EP2487473A1 Device for trapping fuel vapours in the gauge of a set of gauges of a device for distributing liquid fuel during said gauge |
| 08/15/2012 | CN202382821U Simulation counting system of pulse counting table |
| 08/15/2012 | CN1934412B Reactive sensor modules using pade' approximant based compensation and providing module-sourced excitation |
| 08/15/2012 | CN102636238A Vortex shedding flowmeter detection device |
| 08/15/2012 | CN102636237A Valve cover tightness detection device for diaphragm gas meter by using negative pressure method |
| 08/15/2012 | CN102012251B Method and device for detecting additives, abrasion or corrosion on wall of vibrating tube of Coriolis mass flowmeter |
| 08/15/2012 | CN101720421B 液面传感器 Level sensor |
| 08/09/2012 | US20120200697 Dry Agricultural Materials Management |
| 08/08/2012 | CN202372585U Test bed for pumping device |
| 08/08/2012 | CN202372236U Constant water head water supply system of flow measuring device |
| 08/08/2012 | CN102630296A Method and device for checking a system for measuring a flow of fuel in real time |
| 08/08/2012 | CN102128666B Method for calibrating Coriolis mass flowmeter |
| 08/08/2012 | CN101842669B System and method for filling level determination |
| 08/07/2012 | US8239157 Method and apparatus for directing the use of a coriolis flow meter |
| 08/02/2012 | WO2012102701A1 Capacitive fluid level sensing |
| 08/02/2012 | DE102011010170A1 Non-interacting method for switching flows of liquid, for use in calibrating volumetric flow meter, involves decreasing flow of liquid through valves, so that liquid from supply line partially flows into derivative |
| 08/01/2012 | CN202362059U Water meter calibrating device |
| 07/26/2012 | WO2012100181A1 Mass flow controller with onboard diagnostics, prognostics, and data logging |
| 07/26/2012 | WO2012099777A2 Apparatus and method for determing displacer position in a flowmeter prover |
| 07/26/2012 | US20120186323 Apparatus and method for determing displacer position in a flowmeter prover |
| 07/26/2012 | CA2824984A1 Apparatus and method for determing displacer position in a flowmeter prover |
| 07/25/2012 | DE202011005560U1 Vorrichtung zum Prüfen von Wasserzählern mit frei wählbarer Belastung der Zähler Apparatus for testing water meters with selectable load on the meter |
| 07/25/2012 | CN202350881U Full-automatic water meter calibrating device |
| 07/25/2012 | CN202350880U Photoelectric direct-reading automatic water meter calibration device |
| 07/25/2012 | CN202350879U Photoelectric direct-reading full-automatic water meter verification device |
| 07/25/2012 | CN202350878U Automatic checking device for flow meter |
| 07/25/2012 | CN202350877U Aligning bracket of automobile air flow meter performance testing device |
| 07/25/2012 | CN202349591U Calibration device of liquefied natural gas (LNG) dispenser |
| 07/25/2012 | CN102607675A Gas meter temperature tester |
| 07/25/2012 | CN102607674A Apparatus and method for determing displacer position in a flowmeter prover |
| 07/25/2012 | CN102607670A Gas medium type self-calibrating ultrasonic liquid level measuring method and liquid level meter thereof |
| 07/25/2012 | CN102607662A Laser counting method and laser counting system of wheel type metering instrument |
| 07/25/2012 | CN101907479B Fine adjustment mechanism for crank of diaphragm gas meter |
| 07/25/2012 | CN101750136B Dry calibration method of electromagnetic flow meter based on intraductal magnetic field simulation numerical calculation |
| 07/19/2012 | WO2012097194A1 Flow measurement devices having constant relative geometries |
| 07/19/2012 | US20120185197 Self calibrating home site fuel usage monitoring device and system |
| 07/19/2012 | US20120180572 Erosion-resistant insert for flow measurement devices |
| 07/19/2012 | US20120180547 Flow measurement devices having constant relative geometries |
| 07/18/2012 | CN202339227U 便携式水表示值误差检测装置 Portable water represents the value of the error detection device |
| 07/18/2012 | CN202339226U 一种基于单片机与pc机通讯的玻璃量器自动检定装置 A Glass Container communicates with the microcontroller-based automatic test equipment pc |
| 07/18/2012 | CN202339225U 汽车空气流量计性能测试装置的气流管道调整架 Automotive air duct airflow meter performance test device Mounts |
| 07/18/2012 | CN102597719A Flow sensing device with temperature compensation |
| 07/18/2012 | CN102589803A Portable multifunctional vacuum calibration system and method |
| 07/18/2012 | CN102589659A Field measuring system with Coriolis mass flow meter and detection method of field measuring system |
| 07/18/2012 | CN102589658A Starting-stopping heavy-caliber water flow calibrating device and starting-stopping heavy-caliber water flow calibrating method |
| 07/18/2012 | CN102589657A Large-caliber multi-meter serial-connection fast calibrating device and large-caliber multi-meter serial-connection fast calibrating method |
| 07/18/2012 | CN102589656A Test method and measuring device for acoustic delay of gas ultrasonic flowmeter |
| 07/18/2012 | CN102589655A Correction method of measuring value for resistor-capacitor integrated water level sensor of solar water heater |
| 07/18/2012 | CN102589628A Multiphase coriolis flowmeter |
| 07/17/2012 | US8224593 Startup techniques for a digital flowmeter |
| 07/17/2012 | US8220314 Lighter device with flow restrictor and methods of manufacturing and testing same |
| 07/12/2012 | WO2012093436A1 Flow rate measurement device and flow rate measurement method of flow rate controller for gas feeder |
| 07/11/2012 | EP1407233B1 Flow diagnostic system |
| 07/11/2012 | CN202329760U 用于立式水表检定的夹表器 Vertical clamp meter for meter calibration device |
| 07/11/2012 | CN202329759U 一种串联水表校验装置 A water meter calibration device series |
| 07/11/2012 | CN202329758U 一种飞机液体流量现场校准的装置 An aircraft liquid flow field calibration device |
| 07/11/2012 | CN202329757U 一种飞机液体流量现场校准装置 An aircraft liquid flow field calibration device |
| 07/11/2012 | CN102564681A Method for determining flowing state of medium in pipeline for ultrasonic gas meter |
| 07/11/2012 | CN102564536A Correction system and correction method for oil tank loading table |
| 07/11/2012 | CN102564535A Gas meter function experimental device |
| 07/11/2012 | CN102564525A Bell jar type gas flowmeter calibration device with spiral pipe micrometer element |
| 07/11/2012 | CN101718574B Method for measuring volume of volume variation chamber of constant-pressure pressure leak calibration apparatus |
| 07/10/2012 | CA2614052C Apparatus for capacitive ascertaining and/or monitoring of fill level |
| 07/05/2012 | US20120167660 Self-Calibrating Capacitive Transducer for Determining Level of Fluent Materials |
| 07/04/2012 | EP2472237A1 Flow meter and method for detecting a cable fault in a cabling of the flow meter |
| 07/04/2012 | CN202304964U 正压法气体流量标准装置恒温恒压控制系统 Positive pressure method gas flow standard device constant temperature and pressure control system |
| 07/04/2012 | CN202304963U 差压式液面计的在线检测装置 Differential pressure type level gauge line detection device |
| 07/04/2012 | CN202304962U 风洞型速度-面积法气体流量标准装置 Wind tunnel Velocity - area method gas flow device |
| 07/04/2012 | CN102549398A Method and apparatus for determining and compensating for a change in a differential zero offset of a vibrating flow meter |
| 07/04/2012 | CN102538916A Portable gas micro-flow calibration system and method thereof |
| 07/04/2012 | CN102538915A Pulley pneumatic expansion joint |
| 07/04/2012 | CN102538914A Electronic water meter with correction function |
| 07/04/2012 | CN102538913A Correction method of flow measurement properties of single-track ultrasonic water meter |
| 07/04/2012 | CN102538912A Method for analyzing additive errors of flow field of ultrasonic flowmeter |
| 07/04/2012 | CN102538911A Water supply system for calibrating flowmeter |
| 07/04/2012 | CN102538899A Complex ore dressing-based material level detection method for intelligent fault judgment |
| 07/04/2012 | CN102538894A Gas measurement device and checking system |
| 07/04/2012 | CN102072756B Front and rear rotating disk type straight pipe section device of flow standard device |
| 07/03/2012 | US8210022 Pressure type flow rate control reference and corrosion resistant pressure type flow rate controller used for the same |
| 07/03/2012 | CA2554206C Medium, method and system for proving a turbine meter |
| 06/28/2012 | US20120166125 Method for in-situ calibrating a differential pressure plus sonar flow meter system using dry gas conditions |