| 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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| 06/28/2012 | DE102010056086A1 Control device for operational control of field device for reproducing physical dimension from operating system, has field device, regulating arrangement with model system and comparison circuit |
| 06/28/2012 | DE102010056084A1 Controller for controlling field device of operating system for measuring e.g. temperature, to control operation of level transmitter, has evaluating unit excavating characteristic value compared with theoretical characteristic value |
| 06/27/2012 | EP2468390A2 Mixing assembly |
| 06/27/2012 | CN102519559A Special fixing device for air permeability flow rate disc detection of tobaccos |
| 06/27/2012 | CN102519558A Detector for correcting measuring accuracy of sonic nozzle of diaphragm gas meter |
| 06/27/2012 | CN102519557A Computer aided calibration method for coal flow meter in shell coal gasification process |
| 06/27/2012 | CN102519556A Method for calibrating heavy-caliber electromagnetic flowmeter on line |
| 06/27/2012 | CN102183284B Liquid flow standard calibration device |
| 06/26/2012 | US8205479 Method for mounting a prover |
| 06/21/2012 | WO2012081136A1 Gas measurement device and checking system |
| 06/21/2012 | DE112010003050T5 Stromaufwärtsvolumenmassenströmungsnachweissysteme und Verfahren Upstream volume mass flow detection systems and methods |
| 06/21/2012 | DE102010063430A1 Verfahren zur Überwachung der Funktion eines Feldgeräts Method for monitoring the function of a field device |
| 06/20/2012 | EP2464950A1 Method and apparatus for determining a zero offset in a vibrating flow meter |
| 06/20/2012 | CN202281641U 一种流量计发信器检测装置 A flow meter transmitter detection device |
| 06/20/2012 | CN202281640U 高精度流体换向器 High precision fluid commutator |
| 06/20/2012 | CN102506966A Correcting device for flow system |
| 06/20/2012 | CN102506965A System for calibrating flow sensor |
| 06/20/2012 | CN102506964A Liquid reservoir automatic calibration device and calibration method |
| 06/20/2012 | CN101111747B Method and device for instructing use of coriolis flowmeter |
| 06/14/2012 | WO2012078782A1 Method for in-situ calibrating a differential pressure plus sonar flow meter system using dry gas conditions |
| 06/14/2012 | WO2012040017A3 Apparatus and methods for automatically testing a servo gauge in an inventory management system |
| 06/14/2012 | US20120150344 Fuel dispenser flow meter sensor fraud prevention |
| 06/14/2012 | CA2823688A1 Method for in-situ calibrating a differential pressure plus sonar flow meter system using dry gas conditions |
| 06/13/2012 | CN202274900U Fuel gas measuring device and detection system |
| 06/13/2012 | CN102494744A Large-flow automatic detection device and detection method for water meters |
| 06/13/2012 | CN102494743A Small-flow automatic detection device and detection method for water meters |
| 06/13/2012 | CN102494742A Method for on-line calibration of large-caliber flow meter |
| 06/13/2012 | CN102494741A Static sampling introduction device and method of calibrating pressure leak hole |
| 06/12/2012 | US8200450 Medium density measuring system |
| 06/12/2012 | US8199611 Deriving tilt-corrected seismic data in a multi-axis seismic sensor module |
| 06/12/2012 | US8197752 Managing system and method for emissions of environmental pollutants |
| 06/12/2012 | US8196446 Framework for a prover |
| 06/07/2012 | US20120137750 Vapor Retention Apparatus and Method for Liquid Volumetric Test Measure |
| 06/06/2012 | EP2459974A1 Device and method for determining a physical quantity of a capacitive proximity switch |
| 06/06/2012 | CN202267520U 在线式浮筒液位校验仪 On-line float level calibrator |
| 06/06/2012 | CN102486395A Correction carrier for gas-oil ratio testing sealing assembly of oil filling gun |
| 06/06/2012 | CN102016524B Radar level gauge system using a waveguiding structure with periodically arranged reference impedance transitions |
| 06/06/2012 | CN101184989B Devices and methods for use in assessing a flow condition of a fluid |
| 05/30/2012 | CN202255571U Venturi nozzle type high/low-temperature fuel gas representation value error detecting device with critical flow |
| 05/30/2012 | CN202255570U Steel billet simulator capable of being lifted |
| 05/30/2012 | CN202255569U Split type automatic calibration system for tank capacity |
| 05/30/2012 | CN202255568U Intelligent fault detection device for automatic tank capacity calibration system |
| 05/30/2012 | CN202255567U Coolant filling machine test tank |
| 05/30/2012 | CN202255566U Liquid level meter detecting device |
| 05/30/2012 | CN202255519U Waist wheel connection mechanism of gas Roots flowmeter |
| 05/30/2012 | CN202237622U Gas impurity filter device |
| 05/30/2012 | CN102483344A 上游体积质量流量检验系统和方法 Bulk mass flow rate upstream of the inspection system and method |
| 05/30/2012 | CN101701840B Testing device used for metering trace liquid |
| 05/29/2012 | US8190390 Device, method, and system for calibration of a flow meter used in conjunction with a ventricular assist device |
| 05/24/2012 | WO2012066372A1 Electromagnetic flow meter |
| 05/23/2012 | EP1192425B1 Measuring and controlling the flow of flowable materials |
| 05/23/2012 | CN102466500A 脉冲式涡街流量计的输出脉冲的检测、判断装置及方法 Detection pulse vortex flowmeter output pulse, judging apparatus and method |
| 05/23/2012 | CN101614575B Method for correcting relation of voltage and airflow speed of mass flow sensor |
| 05/17/2012 | US20120118037 Device for Checking a Flow Pressure Measurement Probe, and Probe Comprising the Device |
| 05/16/2012 | CN202221331U On-line calibration system for weighing flowmeter |
| 05/16/2012 | CN202221326U Water meter |
| 05/16/2012 | CN102455209A Apparauts and method for turbine flow meter sensor adjustment |
| 05/15/2012 | CA2472310C Method and device for monitoring the validity of at least one parameter calculated from aircraft air data computers |
| 05/09/2012 | CN202216743U Movable pressure taking device |
| 05/09/2012 | CN202216742U Two-channel method ultrasonic flow meter time difference detector |
| 05/09/2012 | CN202216741U Calibrating device for floater flow meter |
| 05/09/2012 | CN202216740U Water level sensor, water level switch detecting device |
| 05/09/2012 | CN202216739U Meter compressing mechanism for gas meter detecting device |
| 05/09/2012 | CN202216738U Device for quickly installing sonic nozzle |
| 05/09/2012 | CN102449442A Level sensor and associated control circuit, in particular for a filter for vehicles |
| 05/09/2012 | CN102445939A Diagnostic mechanism |
| 05/09/2012 | CN102445258A Simulative counting system and method of impulse counting meter |
| 05/09/2012 | CN102445257A Quick development method for water meter model machine |
| 05/09/2012 | CN102445256A Elevation calibration device and calibration method for level meter |
| 05/09/2012 | CN102445255A Axial push-and-pull clutch for piston type standard volume pipe |
| 05/09/2012 | CN101517377B Magnetic flowmeter with verification |
| 05/09/2012 | CN101334305B Diagnostic device and method for coriolis flowmeter |
| 05/08/2012 | US8175754 Configuration of a multivariable process fluid flow device |
| 05/08/2012 | US8172800 Device and method employing shape memory alloy |
| 05/02/2012 | CN102435268A Calibration device for gas flow meter and method thereof |
| 05/02/2012 | CN102435267A Demarcating method of photoelectric direct-reading intelligent water meter |
| 05/02/2012 | CN102435266A Constant water head water supply system for flow measurement device |
| 05/02/2012 | CN102435265A Precision correction method for transit time ultrasonic flowmeter |
| 05/02/2012 | CN102435264A Self-calibration method and system for magnetostriction liquid level sensor |
| 05/02/2012 | CN102435256A Determining method of actual zero point and actual measuring range of differential pressure transmitter |
| 05/02/2012 | CN102435251A Water meter |
| 05/02/2012 | CN102435243A Flow meter and method for detecting cable fault in cable circuit of flow meter |
| 04/26/2012 | WO2012052461A1 Method for determining the mass flow of gases, in particular the exhaust gas of internal combustion engines |
| 04/26/2012 | US20120096920 Apparatus and method for turbine flow meter sensor adjustment |
| 04/25/2012 | CN202204575U 燃油传感器调校装置 Fuel sensor calibration device |
| 04/25/2012 | CN202204574U 活塞式标准体积管及其活塞驱动机构 Piston standard volume tube and piston drive mechanism |
| 04/25/2012 | CN202204573U 活塞式标准体积管及其活塞 Piston and piston standard volume tube |
| 04/25/2012 | CN202204572U 活塞式标准体积管及其测量缸 Piston standard volume tube and measuring cylinder |
| 04/25/2012 | CN202204540U 一种方便误差调节的水表 An error adjustment meter convenience |
| 04/25/2012 | CN102426046A 活塞式标准体积管的闭式内循环检定系统 Standard volume within the piston tube closed loop calibration system |
| 04/18/2012 | CN202195864U 飞机液体流量现场校准装置 Aircraft liquid flow field calibration device |
| 04/17/2012 | US8160751 Devices, systems and methods for flow-compensating pump-injector synchronization |
| 04/17/2012 | US8157160 Meter register and remote meter reader utilizing a stepper motor |
| 04/12/2012 | WO2012047621A1 Fluid meter body with modular transducer housing |
| 04/12/2012 | WO2012026943A3 Sensor assembly validation |
| 04/11/2012 | EP2439500A1 Method for generating a diagnostic from a deviation of flow meter parameter |
| 04/11/2012 | EP2150781B1 Method for starting up and/or reconfiguring a programmable field measuring instrument |
| 04/11/2012 | CN102410904A CO<sub>2</sub>减压器整体检定方法 CO <sub> 2 </ sub> Regulator overall verification method |
| 04/05/2012 | US20120083730 Variable Volume, Shape Memory Actuated Insulin Dispensing Pump |
| 04/04/2012 | EP2437036A1 Measuring device and method for determining a fluid level in a fuel tank |