| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 073100340 |
With signal processing, span or set point adjustment (e.g., zero correction)
| 19 |
| 073100350 |
With pressure measurement or plural flowmeters
| 14 |
| 073100190 |
Piston
| 14 |
| 073100360 |
Metering dispenser
| 6 |
| 073100290 |
Anemometer or pitot tube | 5 |
| 20080307853 | ANEMOMETER CALIBRATION METHOD AND WIND TURBINE - A method for re-calibrating an anemometer of a wind turbine is provided, the method comprising the steps of obtaining pairs of measured values of wind speed and a wind-speed dependent turbine variable; comparing said measured value pairs to pairs of wind speed and the turbine variable obtained from an expected turbine variable curve of the wind turbine to determine a difference between a measured wind speed value and an expected wind speed value for a given turbine variable value; and adjusting a calibration function of said anemometer on the basis of said determined difference. | 12-18-2008 |
| 20100162787 | QUICK TEST TOOL AND METHOD OF AIRCRAFT AIRSPEED INDICATOR - Provided is a test tool for an airspeed indicator of an aircraft, including: a cylinder portion including an insertion groove with a predetermined amount of space, and of which one end is sealed by a cover and includes an injection portion on the cover so that the insertion groove passes through a pitot tube, and of which another open end includes a protruded step around its inner circumferential surface; a piston portion being inserted into the insertion groove to reciprocally move within the insertion groove, and including a protrusion portion having a size and a shape corresponding to an aperture of the insertion groove, and a bar-shaped knob portion being extended from the protrusion portion; and a display portion being formed of a transparent material on an outer surface of the cylinder portion to display a location of the protrusion portion reciprocally moving within the cylinder portion. | 07-01-2010 |
| 20110079072 | WIND SENSOR - A wind sensor includes first and second elements in an orthogonal axis arrangement and a calibration data array comprising first calibration data associated with the first element and second calibration array data associated with second element. An anemometric processor determines a wind speed (S) and direction (W) for an airflow received by the first and second elements using a first electrical parameter associated with the first element and the first calibration array data and a second electrical parameter associated with the second element and the second calibration array data. A wind sensing probe can have a pair of wind sensing elements, wherein each element has a core formed of a low specific heat, low density, high temperature plastic polymer, with two metal leads extending from the ends of core. A wind sensing element can include a fine Nickel alloy coil wound around an aforementioned core. | 04-07-2011 |
| 20110283766 | Apparatus and Calibration Method for Cup Anemometers having Non-Removable Cupsets - An apparatus and method is disclosed for calibrating a cup anemometer having a non-removable cupset. The calibration method may include mechanically connecting a cups assembly hub of the anemometer to a rotatable shaft of a variable-speed motor, placing at least the anemometer under vacuum so that drag effects on the cups assembly hub of the anemometer are eliminated when driven by the variable-speed motor, controlling the variable-speed motor to drive the cups assembly hub of the anemometer at a number of different rotational speeds, recording electrical signals produced by the anemometer at each of the number of different rotational speeds, and generating calibration data for the anemometer based on the recorded electrical signals and on expected wind speed values at each of the number of different rotational speeds. | 11-24-2011 |
| 20150143869 | METHOD FOR INTERNAL COMBUSTION ENGINE EXHAUST FLOW MEASUREMENT CALIBRATION AND OPERATION - A calibration method for a flow measuring device used with a vehicle exhaust analysis system includes the flow measuring device being connected with the vehicle exhaust system wherein exhaust gases are directed through the flow measuring device. A portable flow calibration device is connected in a manner that exhaust gases of the vehicle exhaust system are directed through the portable flow calibration device. The vehicle is operated so that exhaust gas flows through the flow measuring device and the flow calibration device. The flow measuring device is calibrated with the portable flow calibration device. The flow measuring device includes a Pitot tube assembly in a flow tube wherein gas flowing through the flow tube passes the Pitot tube assembly. The Pitot tube assembly includes a sensing tube and at least one pressure sensing port connected with the sensing tube. The sensing tube includes a plurality of sensing openings that are positioned at different portions of gas flowing through the flow tube. | 05-28-2015 |
| 073100310 |
With liquid level monitor or timer | 5 |
| 20090007625 | SYSTEM AND METHOD FOR FIELD CALIBRATION OF FLOW METERS - A calibration system for a flow meter includes a flow simulator, the flow simulator including a receiver configured to receive flow meter transducer signals from a flow meter. A simulation subsystem is configured to create simulated transit time signal pulses, and to transmit the simulated transit time signal pulses to the flow meter at preselected time intervals. A calibration subsystem is configured to receive from the flow meter a transit time differential value generated by the flow meter based on the simulated transit time signal pulses and output a calibration factor to the flow meter. | 01-08-2009 |
| 20090188298 | LIQUID PROVING SYSTEM - A liquid proving system is provided with a bottom drain liquid prover draining into a holding tank. The fill opening of the prover has a prover fill opening self sealing assembly that remains closed except when a nozzle used to pump liquid into the prover is pushed through the opening of the prover fill opening self sealing assembly. The prover fill opening self sealing assembly may comprise a nozzle sealing gasket and a nozzle removed self seal assembly. There is a vapor conduit connecting the interior of the prover in the region of the fill opening and the interior of the holding tank to form a saturated vapor environment in the prover and holding tank from the vapors emitted from liquid in the holing tank. When liquid is pumped into the prover evaporation of the liquid being pumped into the prover, and release of vapors from the prover, is inhibited due to the saturated vapor environment in the prover, which results in a more accurate prover measurement of liquid pumped into the prover. | 07-30-2009 |
| 20130199262 | SELF CALIBRATING FUEL DISPENSING METHOD AND SYSTEM - Fluid level measurements for the shared tank and outflow information provided by calibrated flow meters corresponding to dispensing stations connected to the shared tank may be used to derive a filled volume model for the tank as a function of fluid level. Subsequently, a filled volume change for a shared tank over a selected time interval may be determined from pre-change and post-change fluid level measurements. The change in filled volume may be compared with the total fluid flow over the selected time interval as indicated by the flow meters of active dispensing stations. If the filled volume change for the tank is substantially different than the total fluid flow indicated by the flow meters, the flow meters may be collectively adjusted to provide a more accurate indication of the filled volume change in the shared tank. | 08-08-2013 |
| 20140116107 | SYSTEM AND METHOD FOR PREVENTING FALSE FLOW MEASUREMENTS IN A VIBRATING METER - A meter electronics ( | 05-01-2014 |
| 20140137629 | NOZZLE ADAPTER FOR VOLUMETRIC TEST AND MEASUREMENT APPARATUS - A nozzle adapter assembly is provided for adapting use of nozzles on liquid dispensing pumps with test and measurement equipment such as liquid provers, test measures and liquid proving systems. The adopter can be used with automatic shut-off nozzles through which the liquid may normally be dispensed. | 05-22-2014 |
| 073100180 |
Sphere | 4 |
| 20090293582 | METHOD AND APPARATUS FOR A BIDIRECTIONAL METER PROVING SYSTEM - A bidirectional sphere prover is used to check the accuracy of a custody transfer meter when fluids, such as crude oil or gasoline are bought and sold. The bidirectional sphere prover of the present invention uses a straight calibrated section of pipe between the detection switches, the straight calibrated section of pipe being free of welds, flanges and elbows. | 12-03-2009 |
| 20130291619 | METHOD AND APPARATUS FOR A BIDIRECTIONAL METER PROVING SYSTEM - A bidirectional sphere prover is used to check the accuracy of a custody transfer meter when fluids, such as crude oil or gasoline are bought and sold. The bidirectional sphere prover of the present invention uses a straight calibrated section of pipe between the detection switches, the straight calibrated section of pipe being free of welds, flanges and elbows. | 11-07-2013 |
| 20140137628 | METHOD AND APPARATUS FOR A BIDIRECTIONAL METER PROVING SYSTEM - During a water draw test, horizontal type bidirectional sphere provers with a straight calibrated section of pipe between the detector switches sometimes suffer from sphere launch failure which typically results in a failed water draw test. These types of provers, especially in larger pipe diameters will benefit from an elongate concentric fabricated reducer attached to the outlet of each launch tube. These elongate concentric fabricated reducers result in a successful sphere launch on the first attempt. Assuming all the other components of the prover are properly designed and assembled, a successful sphere launch will result in a successful water draw test on the first attempt saving time, money and reputation. | 05-22-2014 |
| 20150027197 | METHOD AND APPARATUS FOR A BIDIRECTIONAL METER PROVING SYSTEM - During a water draw test, horizontal type bidirectional sphere provers with a straight calibrated section of pipe between the detector switches sometimes suffer from sphere launch failure which typically results in a failed water draw test. These types of provers, especially in larger pipe diameters will benefit from an elongate concentric fabricated reducer attached to the outlet of each launch tube. These elongate concentric fabricated reducers result in a successful sphere launch on the first attempt. Assuming all the other components of the prover are properly designed and assembled, a successful sphere launch will result in a successful water draw test on the first attempt saving time, money and reputation. | 01-29-2015 |
| 073100240 |
Tracer | 3 |
| 20130008225 | SYSTEM FOR MEASURING FLUID FLOW VELOCITY - The invention relates to a system ( | 01-10-2013 |
| 20130219986 | METHOD AND APPARATUS FOR CALIBRATING A FLOW METER - In the method for calibrating a flow meter, at least two acoustic sensors are arranged at a distance to each other on a straight measuring portion, and a tracer is fed into the fluid flowing in the process pipe at a set mixing distance from the first measuring point. The momentary reference value of the flow velocity of the flowing fluid is measured by determining the travel time of the acoustic tracer between at least two sensors on the same straight measuring portion, by using the acoustic sensors to detect the relative content response of the tracer. This measured value can be compared with the value displayed by the flow meter. The mixing distance of the tracer is arranged to be at least long enough for the tracer to have effectively mixed at the first measuring point over the entire cross-section of the flow path of the fluid. | 08-29-2013 |
| 20140096586 | DEVICE AND METHOD FOR MEASUREMENT OF ULTRASONIC TRANSIT TIMES - A device for measurement of ultrasonic wave transit times of an ultrasonic flow sensor consists of: 1) a synchronization signal generator, 2) a reference pulse generator, 3) a sine wave generator, 4) an analog signal amplifier, 5) a comparator, 6) a plurality of latch circuits, 7) a digital adder, 8) an integrator, 9) an A/D converter, 10) a master counter, 11) a plurality of edge counters, and 12) an arithmetic circuit. The device measures the ultrasonic wave transit times using a method of averaging the ultrasonic wave arriving times at different measuring points (triggering point). This method has less dependency on triggering threshold level and the ultrasonic signal amplitude, and thus has less dependency on threshold drift, threshold stability, system gain fluctuation, electronic noise and signal amplitude variations. As a result, the method can greatly improve the velocity measurement accuracy and system robustness of an ultrasonic flow sensor. | 04-10-2014 |
| 073100170 |
Plug with leak detector | 2 |
| 20090044595 | METHOD AND APPARATUS TO DETECT AND LOCATE ROOF LEAKS - A leak in a membrane on top of a horizontal roof deck is located by applying conductive wires on the membrane underneath the aggregate in a grid pattern. A measuring and switching circuit generates voltage having a positive attached to the roof deck and a negative attached to the wires. The circuit has a relay for each wire which can be switched between a current sensor system and the negative potential. The sensor system is arranged to sense at each of the wires in turn the current flowing from the roof deck through any leak in the membrane to the wire. A microprocessor operates the relays in turn to connect all the other wires to the negative as a shield while each wire is sensed. From the output of the grid the changes in current in the x and y directions are analyzed to locate the leak in the membrane. | 02-19-2009 |
| 20120031162 | METHOD FOR FUNCTIONALLY TESTING A LEAK DETECTOR - In order to functionally test a leak detector ( | 02-09-2012 |
| 073100250 |
Orifice or restriction | 2 |
| 20090090164 | METHOD FOR VOLUMETRICALLY CALIBRATING A LIQUID FLOW CONTROLLER WHILE MAINTAINING THE LIQUID IN A CLOSED SYSTEM - Methods and apparatus for determining if it is necessary to calibrate a liquid flow controller which is contained in a liquid distribution system, where the liquid distribution system supplies a fluid to a semiconductor processing tool. The determination is made while maintaining system as closed, such that fluid does not need to be removed from the liquid distribution system. | 04-09-2009 |
| 20120118037 | Device for Checking a Flow Pressure Measurement Probe, and Probe Comprising the Device - A device is provided for checking a flow pressure measurement probe as well as a probe comprising the device. The probe includes an internal volume and at least one orifice for communication with the outside of the volume. The device includes: an acoustic transmitter and an acoustic receiver that are intended to be connected to the internal volume so that the transmitter transmits an acoustic signal that propagates in the internal volume and so that the receiver picks up an observed acoustic signal; and, means for comparing the observed signal with a reference signal. The device may be a stand-alone device or may be integrated into the probe. | 05-17-2012 |
| 073100270 |
Turbine, geared meter, pulse activated, or counter | 2 |
| 20120096920 | APPARATUS AND METHOD FOR TURBINE FLOW METER SENSOR ADJUSTMENT - A method and apparatus for calibrating a turbine flow meter via adjustment of electromagnetic sensor position are disclosed herein. In one embodiment, a turbine flow meter includes a flow tube, a plurality of electromagnetic pickups, and a locator plate. The electromagnetic pickups are configured to detect rotation a flow indicator in the flow tube. The pickups are secured to the locator plate. The locator plate is configured to adjustably position the pickups relative to the flow tube. | 04-26-2012 |
| 20140116106 | SYSTEM AND METHOD FOR CALIBRATING A WIND VANE OF A WIND TURBINE - A system for calibrating a wind indicator device of a wind turbine of the horizontal-axis type in which a shaft has a portion in a nacelle, the wind indicator device being on an exterior of the nacelle. The system comprises a shaft interface adapted to be positioned on the shaft of the wind turbine in a known manner relative to an orientation of the shaft. An extended body is connected to the shaft interface, the extended body projecting from the shaft interface positioned on the shaft to an exterior of the nacelle. An alignment device is connected to the extended body, the alignment device having a visual indicator at the exterior of the nacelle representative of an orientation of the shaft of the nacelle when the shaft interface is positioned on the shaft in the known manner, whereby a calibration of the wind indicator device is achieved using the visual indicator device. A method for calibrating the wind indicator device is also provided. | 05-01-2014 |
| 073100330 |
With floating element or weighing | 1 |
| 20080202197 | Gas Flowmeter Calibration Stand - A gas flow stand ( | 08-28-2008 |
| Entries |
| Document | Title | Date |
|---|
| 20080216555 | Method For Calibrating Ultrasound Clamp-On Flowmeters - A position difference is created by mutual translation of sound transducers and the associated time difference is measured. Radiating surfaces of both sound transducers are arranged acoustically opposing one another in planes that are parllel to one another. The sound transducers are positioned at a mutual distance x | 09-11-2008 |
| 20090007624 | CONTINUOUS FLOW SAMPLE INTRODUCTION APPARATUS AND METHOD - The present invention relates generally to an apparatus and method for sample analysis. More particularly, the invention encompasses a method and an apparatus for continuous, constant, flow sample introduction of fluid samples of varying viscosity and composition. The invention further includes the option of the apparatus being associated with at least one fluid analyzer system. A temperature controlled environment may also be provided for the processing and analysis of a fluid sample. | 01-08-2009 |
| 20090013753 | METHOD AND APPARATUS FOR PROVING FLOW METERS - A method and apparatus is disclosed that determines the time delay ( | 01-15-2009 |
| 20090064755 | Method for the calibration of a flow measurement in a flow system, and flow system for carrying out the method - The invention relates to a method for the calibration of a flow measurement in a flow system ( | 03-12-2009 |
| 20090151422 | MICROFABRICATED ELASTOMERIC VALVE AND PUMP SYSTEMS - A method of fabricating an elastomeric structure, comprising: forming a first elastomeric layer on top of a first micromachined mold, the first micromachined mold having a first raised protrusion which forms a first recess extending along a bottom surface of the first elastomeric layer; forming a second elastomeric layer on top of a second micromachined mold, the second micromachined mold having a second raised protrusion which forms a second recess extending along a bottom surface of the second elastomeric layer; bonding the bottom surface of the second elastomeric layer onto a top surface of the first elastomeric layer such that a control channel forms in the second recess between the first and second elastomeric layers; and positioning the first elastomeric layer on top of a planar substrate such that a flow channel forms in the first recess between the first elastomeric layer and the planar substrate. | 06-18-2009 |
| 20090205400 | SYSTEM AND METHOD FOR MEASURING FLUID FLOW - A compound fluid flow metering system including two electromagnetic fluid flow meters is disclosed that substantially increases accuracy of metering total volumes and flow rates and provides consistent accuracy over time. Additionally, the compound fluid flow metering system is substantially maintenance free, and reduces pumping costs associated with maintaining adequate supply pressures. | 08-20-2009 |
| 20090211330 | Method for ascertaining volume -or mass- flow of a medium - A method for ascertaining volume- or mass-flow of a medium in a pipeline, or measuring tube, of radius (r) via a sound entrainment method, wherein ultrasonic measuring signals are transmitted and/or received along a plurality of defined sound paths (m). During a calibration phase, successive, different flow profiles (v(r)) of a measured medium are established in the pipeline, or in the measuring tube, and wherein, for each flow profile (v(r)), a defined volume flow, or a defined mass flow, is ascertained, wherein, on the basis of measured values (v) | 08-27-2009 |
| 20090211331 | METHOD TO MEASURE FLOW LINE RETURN FLUID DENSITY AND FLOW RATE - Generally, the present invention is directed to the in situ measurement of fluid density and/or flow rate in tubular conduits, wherein such measurement comprises measuring dynamic fluid level and/or load (weight) in a region of the conduit and correlating these measurements of the fluid with a density and/or flow rate. Such measurements are typically directed toward drilling fluids transported within the tubular conduits—particularly the return flow, wherein the fluid comprises extraneous material (e.g., cuttings, etc.) which can alter the density and flow rate of the drilling fluid. | 08-27-2009 |
| 20090235716 | DETERMINING TOTAL MILL FLOW IN A BIOFUEL PRODUCTION PROCESS - System and method for determining total mill flow (TMF) in a biofuel production process. Measured slurry flow and density values from a process fed by mill(s), backset, and at least one water source, are received. The slurry includes biomass solids and water. Measured backset flow and density values, and a backset composition value are received, as well as a slurry composition value indicating % biomass solids of the slurry is received. A quantity of biomass solids and/or water of the slurry determined based on the slurry flow, density, and composition, and a quantity of the biomass solids and/or water of the backset determined based on the backset flow and density, backset composition, and a system filter characterizing time delays and lags between measurements of the backset flow and biomass slurry flow. Total mill flow is determined based on the quantities of biomass solids and/or water of the slurry and backset. | 09-24-2009 |
| 20090266139 | REAL TIME LEAD-LINE CHARACTERIZATION FOR MFC FLOW VERIFICATION - A method and apparatus that solve the problem of accurate measurement of gas flow so that the delivery of gases in semiconductor processing may be performed with greater confidence and accuracy by performing real-time characterization of a lead-line for mass flow controller (MFC) flow verification are provided. In one embodiment a mass flow verifier (MFV) provides rate of rise information to a controller via a digital interface without correcting for lead-line influences. After receiving the rate of rise data from the tool host computer computes a gas mass correction factor in real-time based on at least one of the following: MFC temperature sensor data, lead-line temperature sensor data, lead-line pressure transducer data, and lead-line volume. The rate of rise data and gas mass correction factor are used to compute accurate mass flow. The accurate mass flow information may be used to calibrate the MFC. | 10-29-2009 |
| 20090272173 | THREE PICKOFF SENSOR FLOW METER - A three pickoff sensor flow meter ( | 11-05-2009 |
| 20090277243 | Electrically controlled hydraulic valve calibration method and system - A method of calibrating an electrically controlled hydraulic valve having a known relationship between flow rate through the valve and displacement of a valve element is disclosed. The method includes ascertaining a first current level for actuating the electrically controlled hydraulic valve to move the valve element to a position adjacent an inlet port, and a first displacement of the valve element responsive to the first current level. The method also includes ascertaining a second current level for actuating the electrically controlled hydraulic valve to move the valve element from the position adjacent the inlet port to a position permitting flow through the inlet port, and ascertaining a second displacement of the valve element responsive to the second current level. The method further includes establishing a relationship between current and displacement associated with the electrically controlled hydraulic valve. | 11-12-2009 |
| 20090301167 | WATER DETECTION DEVICE - An apparatus for indicating a volume of liquid flow, comprising a liquid sensor for sensing the presence of a liquid, a timer activated when the liquid sensor indicates the presence of a liquid, a calculator to calculate the volume of liquid flow dependent upon the time for which the timer is activated, and an indicator to provide an indication of the volume of fluid calculated by the calculation means | 12-10-2009 |
| 20090320552 | Parallel flow meter device for measuring flow rate in pipes - The present invention relates to methods and apparatuses for measuring flow rate in pipes. The standard method of installing flow meters inside pipes to measure flow rates are costly and result in loss of energy and reduction of flow. The present invention solves the problems of standard flow measuring method. The present invention uses an apparatuses comprising of a first pipe and a by-pass second pipe. The flow is partitioned between the first pipe and the by-pass second pipe. A flow meter is installed in the by-pass second pipe. The flow rate is measured through the by-pass second pipe, and using the by-pass second pipe flow rate, the combined flow rate through the first pipe and the by-pass second pipe is calculated. The invention describes two methods to calibrate the apparatuses and relate the flow rate in the by-pass second pipe to total combined flow rate. | 12-31-2009 |
| 20100064766 | CALIBRATION TOOL FOR AIR DATA MEASUREMENT DEVICES - A calibration tool for an air data sensor of a vehicle comprises a target surface which is disposable on the vehicle. The calibration tool may further comprise a light pointer which is mountable on the air data sensor and which is operative to project a beam of light toward the target surface. The air data sensor may be configured as a flow direction sensor which may include at least one of an alpha vane for measuring angle of attack or a beta vane for measuring sideslip. The flow direction sensor may be mountable in spaced relation to the vehicle via a standoff. The flow direction sensor may include a hollow pivot arm having a laser pointer mounted therewithin for projecting a beam of laser light onto the target surface. | 03-18-2010 |
| 20100089118 | Method for measuring a fluid composition parameter by means of a flow sensor - The flow of a fluid of unknown composition is measured by leading the fluid over a first temperature sensor, a heater and a second temperature sensor. The temperature difference DTP between the temperature sensors is measured, as well as the temperature T of at least one of them. In addition, calibration data is used to store the temperature Tref of a known reference fluid. The offset T−Tref at a given temperature difference DTP is a direct measure of the composition of the fluid and allows to retrieve any parameter depending on the same. | 04-15-2010 |
| 20100139360 | DETERMINING THE FLOW RATE OF AIR IN A COMPUTER SYSTEM - Some embodiments of the present invention provide a system that determines a flow rate of air along an airflow path in a computer system. During operation the system monitors a first temperature profile from a first temperature sensor located in a first position in the airflow path, and monitors a second temperature profile from a second temperature sensor located in a second position in the airflow path, wherein the first position is upstream in the airflow path from the second position, and wherein the first position and the second position are separated by a predetermined distance along the airflow path. Next, the system computes a cross-power spectral density based on the first temperature profile and the second temperature profile. Then, the system determines a flow rate of air in the computer system based on the cross-power spectral density. | 06-10-2010 |
| 20100154506 | METHOD FOR MOUNTING A PROVER - A method for mounting a prover and its attached motive means either horizontally or vertically as a function of the footprint available on the surface on which the prover is to be mounted. The method includes attaching the prover and its motive means to a lower framework. Attaching a plurality of stanchions to the lower framework. Mounting an upper framework on the stanchions. Adding a plurality of I-beams to the upper framework and to the stanchions to render the mounting for the prover rigid, whether the prover is mounted horizontally or vertically. | 06-24-2010 |
| 20100170322 | VIBRATORY FLOW METER AND METHOD FOR CORRECTING FOR AN ENTRAINED PHASE IN A TWO-PHASE FLOW OF A FLOW MATERIAL - A vibratory flow meter ( | 07-08-2010 |
| 20100175456 | MULTIPLE FLOW CONDUIT FLOW METER - A multiple flow conduit flow meter ( | 07-15-2010 |
| 20100223976 | HIGH FLOW RATE PROVER AND METER FOR CUSTODY TRANSFER MEASUREMENT - A method includes introducing a tag into a fluid stream, the tag being suspended in the fluid stream. The tag is detected at a first end of a calibrated volume and a first detection signal is generated responsive thereto. The tag is detected at a second end of the calibrated volume and a second detection signal is generated responsive thereto. A flow parameter for the fluid stream is determined based the first and second detection signals and the calibrated volume. | 09-09-2010 |
| 20100307219 | METHOD TO CALIBRATE A FLOW BALANCE VALVE ON A WINDROWER DRAPER HEADER - A simplified method for calibrating a variable-displacement hydraulic PTO system on an agricultural windrower when powering a header wherein the variable-displacement pump is operated at maximum flow capacity while the engine is operated at a pre-determined speed and a flow balance valve is adjusted to achieved a pre-determined cutterbar speed. Operation of the cutterbar at the pre-determined speed allows sufficient hydraulic fluid flow through the remaining parallel fluid circuit to power the remaining equipment, typically a reel, on the header. Controls for managing pump displacement and engine speed as well as indication of cutterbar speed are typically available on the windrower tractor thereby eliminating the need for additional diagnostic equipment and making the method suitable for use in the field. | 12-09-2010 |
| 20110000274 | AIR-MICROMETER CALIBRATION DEVICE - The present invention aims to provide an air-micrometer calibration device capable of securely causing an axis of a measuring-head tip portion and an axis of a master hole to coincide with each other. To this end, the air-micrometer calibration device ( | 01-06-2011 |
| 20110056265 | IDENTIFICATION OF AIR AND/OR FUEL METERING DRIFT - The disclosure relates to a system and method for identifying whether a difference between measured lambda and computed lambda, based on mass air flow and mass fuel flow, is due to a drift in fuel metering or a drift in air metering. The determination is based on also measuring exhaust gas NOx using a NOx sensor. By comparing the measured NOx to modeled NOx, drift can be attributed appropriately to the air flow measurement and/or the fuel flow measurement. Appropriate correction in the calibration can be undertaken to overcome sensor drift and/or drift in the fuel injector/fuel system flow characteristics. | 03-10-2011 |
| 20110120207 | METHOD AND DEVICE FOR CHARACTERIZING MAGNETORHEOLOGICAL FLUIDS - A method for characterizing magnetorheological fluids using a volume flow rate measurement. The volume flow of the magnetorheological fluid through a capillary is initially measured, with a constant weight force being applied onto the magnetorheological fluid. A magnetic field is then applied to the capillary, and the volume flow of the magnetorheological fluid through the capillary is measured with the magnetic field applied, with a second constant weight force being applied onto the magnetorheological fluid. A device for carrying out the method comprises a container for storing a magnetorheological fluid, wherein the container is connected on one side to a capillary through which the magnetorheological fluid can flow, and is closed on a different side by a movable piston, which presses the magnetorheological fluid through the capillary with a constant weight force, and means for generating a magnetic field are provided in the region of the capillary. | 05-26-2011 |
| 20110132064 | FLOWMETERS AND METHODS FOR DIAGNOSIS OF SENSOR UNITS - A method and an apparatus for diagnosis of a flowmeter are disclosed. The method includes thermally coupling a first sensor unit of the flowmeter to a fluid and thermally coupling a second sensor unit of the flowmeter to the fluid. The method also includes actively heating or cooling the first sensor unit by applying power to the first sensor unit such that its temperature is different from the temperature of the fluid, and simultaneously actively heating or cooling the second sensor unit by applying power to the second sensor unit such that its temperature is different from the temperature of the fluid, and typically from the temperature of the first sensor. The method can include determining a temperature TM | 06-09-2011 |
| 20110197650 | METHODS OF MANUFACTURING AND TEMPERATURE CALIBRATING A CORIOLIS MASS FLOW RATE SENSOR - A subassembly of a Coriolis flowmeter is fabricated from a single monolithic piece of elastic polymeric material. The subassembly includes two flow-sensitive members and a base integrally connected to the two flow-sensitive members. The two flow-sensitive members include straight sections, and are substantially similar and parallel to each other. Flow passages are drilled along the straight sections of the two flow-sensitive members, and drilled entrances are sealed using the elastic polymeric material. A temperature sensor is fixedly attached to a flow-sensitive member for measuring a temperature of the flow-sensitive member and communicating the temperature to a metering electronics. The metering electronics determines a calibrated flow rate of fluid flowing through the Coriolis flowmeter that accounts for the temperature. | 08-18-2011 |
| 20110232358 | Surgical Cassette - A surgical system and cassette, the cassette having an identification method that is specific to the cassette. Suitable methods include bar coding or Radio Frequency Identification (“RFID”). Cassette information that may be encoded include features such as lot number and performance characteristics, such as pressure sensor calibration data, flow and pressure data and any other performance characteristics of the cassette captured during testing of the cassette at manufacture. | 09-29-2011 |
| 20110247390 | METHOD AND MASS FLOW CONTROLLER FOR ENHANCED OPERATING RANGE - A mass flow controller (MFC), a method for calibrating an MFC, and a method for operating an MFC are disclosed. The method for calibrating the MFC includes obtaining data relative to two signals from a thermal mass flow sensor when operating the mass flow controller at different flow rates with a calibration gas, and storing the data relating to the two signals in connection with corresponding flow-rate values. The method for operating the MFC includes obtaining data relative to the two signals from the thermal mass flow controller and accessing the calibration data to determine an unknown flow rate for a process gas that may be the same gas as the calibration gas or may be another gas that is different from the calibration gas. | 10-13-2011 |
| 20110265549 | METHODS AND APPARATUS FOR CALIBRATING FLOW CONTROLLERS IN SUBSTRATE PROCESSING SYSTEMS - Methods and apparatus for calibrating a plurality of gas flows in a substrate processing system are provided herein. In some embodiments, a substrate processing system may include a cluster tool comprising a first process chamber and a second process chamber coupled to a central vacuum transfer chamber; a first flow controller to provide a process gas to the first process chamber; a second flow controller to provide the process gas to the second process chamber; a mass flow verifier to verify a flow rate from each of the first and second flow controllers; a first conduit to selectively couple the first flow controller to the mass flow verifier; and a second conduit to selectively couple the second flow controller to the mass flow verifier. | 11-03-2011 |
| 20120036914 | Method Of Calibrating The Meter Of A Product Distribution Apparatus And Monitoring Method - A product distribution apparatus, shown in the form of an agricultural air seeder is disclosed having sensors to measure the mass flow through the distribution system, sensors to weigh the tank and the product therein, and sensors to measure the quantity of product in the tank. The sensors are used to measure the change in the quantity of product in the tank during a calibration process where the apparatus is operated over an area and the number of rotations of the meter are recorded. The data is then used to determine a mass flow rate per revolution of the meter. A monitoring method is also disclosed in which an ‘area to empty’ and ‘product needed’ to complete a field or task is displayed to the operator. | 02-16-2012 |
| 20120186323 | APPARATUS AND METHOD FOR DETERMING DISPLACER POSITION IN A FLOWMETER PROVER - Apparatus and methods for proving a flowmeter. In one embodiment, a flowmeter prover includes a flow tube, a displacer, and a signal analyzer. The displacer is moveable in a flow passage of the flow tube. A magnetic target is disposed on the displacer. One or more inductive transducers are disposed on the flow tube and configured to detect the magnetic target as the displacer moves in the flow tube. The signal analyzer is configured to detect a maximum slope of rising and falling edges of a signal generated by the transducer responsive to the magnetic target traversing the transducer. The signal analyzer is further configured to determine displacer velocity based on the detected maximum slope. | 07-26-2012 |
| 20120216594 | FRAMEWORK WITH STANCHIONS FOR A PROVER - A prover mounted upon a supporting lower framework includes a piston supporting rod extending longitudinally through a cylinder, which cylinder receives and discharges a fluid to measure the flow rate of the fluid by translation of the piston from the fluid receiving end to the fluid discharging end. Motive means supported on a frame mounted on the prover draws the rod toward the fluid receiving end of the cylinder. An upper framework is attached to the lower framework through a plurality of stanchions. Various I-beams formed as part of the upper framework enhance rigidity to the combination of lower framework and upper framework. The combination of lower framework and upper framework provides support for the prover in a horizontal or a vertical orientation without affecting the operation, repair or maintenance of the prover. | 08-30-2012 |
| 20120240657 | INERT GAS DELIVERY SYSTEM FOR ELECTRICAL INSPECTION APPARATUS - An apparatus for electrical inspection is disclosed. The apparatus comprises an inert gas delivery system that delivers inert gas near a microscope imaging element and electrical test probes. A gas supply provides an inert gas such as argon or nitrogen. The inert gas displaces oxygen to prevent premature oxidation of the test probes. In one embodiment, one or more delivery tubes deliver inert gas to the measurement area. | 09-27-2012 |
| 20120272710 | METHOD AND A DEVICE FOR REAL TIME MONITORING OF A SYSTEM FOR MEASURING A FUEL FLOW RATE - A device and method of monitoring the measurement of a fuel flow rate fed to an airplane engine includes delivering the measurement from a mass flowmeter. The monitoring also includes evaluating whether at least the following conditions are satisfied: a signal delivered by the flowmeter is less than a given value; and the engine is running on its own. The measurement is invalidated if these conditions are satisfied simultaneously. | 11-01-2012 |
| 20120291518 | Systems and Methods for Remote Testing of a Flow Switch - Systems and methods for the remote testing of a paddle-type flow detector, such as are common in fire protection systems. Specifically, the systems and methods provide for mechanical movement of the vane to test activation of the flow detector under a flow condition, and which measure the amount of time the vane takes to return to the ready position to verify the presence of a paddle on the vane. | 11-22-2012 |
| 20120291519 | METHOD FOR ADJUSTING FLOW MEASURING DEVICE - A method is for adjusting a flow measuring device that includes a housing and a flow sensor. The housing includes a bypass flow passage which is formed to take in a part of a mainstream of air. The sensor is disposed in the bypass flow passage and outputs an electrical signal in accordance with a flow rate of air. The bypass flow passage is formed in an asymmetrical shape with respect to the sensor in upstream and downstream directions of the mainstream. A flow from an upstream side toward a downstream side of the mainstream is a forward flow. A flow from the downstream side toward the upstream side of the mainstream is a backward flow. According to the method, an output from the sensor in a backward-flow region is obtained. Furthermore, the output of the sensor in the backward-flow region is adjusted to have a desired output characteristic. | 11-22-2012 |
| 20120304731 | FLOW METER AND USE THEREOF FOR DETERMINING A FLOW OF A MEDIUM, AS WELL AS A METHOD THEREFOR - The invention relates to a flow meter for determining a flow of a medium. The flow meter comprises a flow tube for transporting the medium whose flow is to be measured. The flow tube has a supply end and a discharge end disposed downstream thereof. The flow meter is provided with a first flow sensor for measuring the flow of the medium at a first position of the flow tube. The flow meter is provided with a second flow sensor for measuring the flow of the medium at a second position of the flow tube. | 12-06-2012 |
| 20130036788 | FAULT DIAGNOSIS APPARATUS FOR AIRFLOW METER - Disclosed is a fault diagnosis apparatus for an airflow meter for determining that the airflow meter has a fault when a divergence ratio, i.e., a divergence value of an estimated intake-air quantity with respect to an actual intake-air quantity obtained by the airflow meter is greater than a fault-determination reference value determined based on a rotation speed of an internal combustion engine. As the engine speed reduces, an upper-limit diagnosis criterion increases and a lower-limit diagnosis criterion decreases, so as to narrow an area for determining that the airflow meter has a fault. Hence, the fault diagnosis for the airflow meter can be performed in the entire engine rotation speed range, i.e., in the entire operation range of the internal combustion engine, thus preventing a deterioration in the exhaust performance, which may occur owing to a failure in the airflow meter, beforehand. | 02-14-2013 |
| 20130047695 | Ultrasonic Flow Meter - An ultrasonic flow meter is disclosed, including a switching unit for switching electrical transmission signals between a signal generator and at least two ultrasonic transducers and for switching electrical reception signal between the transducers and a receiver circuit, wherein the switching unit is coupled to an output terminal of an operational amplifier of the signal generator and to an inverting input terminal of an operational amplifier of the receiver circuit. Furthermore, a method for characterizing an ultrasonic transducer is disclosed, including the step of determining directly from one or more supply current signals for an active component of a signal generator one or more quantities useful for characterizing the transducer. Furthermore, a method for determining the time delay of an ultrasonic signal in a flow path of an ultrasonic flow meter is disclosed, including the step of comparing physically transmitted, delayed and received signals with simulated non-delayed signals. | 02-28-2013 |
| 20130125612 | SENSOR ASSEMBLY VALIDATION - A method for validating a sensor assembly of a meter is provided. The method comprises a step of receiving one or more sensor calibration values. The method further comprises a step of comparing the received sensor calibration values to one or more known sensor calibration values. The method can then validate the sensor assembly if the one or more received sensor calibration values are within a predetermined tolerance of the one or more known sensor calibration values. | 05-23-2013 |
| 20130145816 | Calibration Procedure Considering Gas Solubility - A method of calibrating a flow meter is provided. The method initiates with identifying a calibration fluid for a processing fluid. The calibration fluid has physical properties in common with the processing fluid with the exception of an outgassing characteristic. The method includes adding the calibration fluid to a vessel, where the vessel is in fluid communication with the flow meter and a withdrawal unit. The vessel is pressurized and the calibration fluid is withdrawn from the vessel through the flow meter and into the withdrawal unit, where the withdrawing performed by the withdrawal unit. A withdrawal volume per unit time measured by the flow meter is compared to a withdrawal volume per unit time controlled and set through the withdrawal unit. | 06-13-2013 |
| 20130145817 | Torsional flow sensor - A flow sensor with h no moving parts and which is suitable for miniaturization into a probe for fluid measurements in remote, hostile environments. It comprises an isolation torque tube to isolate a high pressure media from an instrument environment. and a highly sensitive disc torque sensor to measure the values of torque generated by flow across a static impeller. A proportionalized electric property signal is transmitted to a value reading station. | 06-13-2013 |
| 20130174635 | MASS FLOW CONTROLLER VERIFYING SYSTEM, VERIFYING METHOD AND VERIFYING PROGRAM - In a mass flow controller verifying system, there are provided a verifying gas line arranged in parallel to influent flow gas lines and joined into a post-confluent flow gas line, a reference volume calculating portion adapted to calculate a reference volume determined for a specified piping of a gas piping system, a verifying parameter calculating portion adapted to calculate a verifying parameter based on time series data of a measurement pressure measured by a pressure measurement unit during a control of a flow rate by a mass flow controller to be verified, and a comparing portion adapted to compare a reference parameter set based on the reference volume and the verifying parameter, whereby the verifying system can be introduced into an existing gas piping system used in a semiconductor manufacturing process and so forth at a low cost and is capable of verifying a mass flow controller quickly and accurately. | 07-11-2013 |
| 20130228003 | Coriolis Mass Flowmeter and Method for Operating a Coriolis Mass Flowmeter - A method and Coriolis mass flowmeter, wherein the Coriolis mass flowmeter includes at least one measurement tube through which a medium flows, at least one exciter system arranged in the central region of the at least one measurement tube which causes the measurement tube to oscillate, and at least two oscillation pick-ups arranged in front of and behind the at least one exciter system. The at least two measurement tubes are additionally each provided with at least one acceleration sensor arranged in front and/or behind the exciter system. An evaluation device is configured to receive acceleration signals from the acceleration sensors and evaluate the acceleration signals to diagnose an asymmetry in the measurement tubes such that fault states, such as deposits in one of the two measurement tubes, blockage of a tube in a flow divider or asymmetrical changes in the ability of the measurement tubes to oscillate, such as due to cracks or fractures, can advantageously be detected. | 09-05-2013 |
| 20130263640 | METHOD FOR CORRELATING A MONITORING DEVICE TO THE END OF SERVICE LIFE OF A FILTER CARTRIDGE - Methods of correlating a monitoring device to the service life of a filter cartridge include providing a monitoring device, and calibrating the monitoring device to correspond to the service life of a filter cartridge. The monitoring device comprises a demand substance within a receptacle, a sensing element with a detection point, a reader for the sensing element, and a fluid delivery device. Calibration includes determining the ratio of the residence time of the monitoring device to the residence time of the filter cartridge, and utilizing the ratio to correlate the response of the sensor within the monitoring device to the service life of the filter cartridge. The response of the sensor is correlated to the service life of the filter cartridge by control of the fluid delivery parameters of the fluid delivery device. The fluid delivery parameters include the flow rate, the demand substance mass, the receptacle cross sectional area, the receptacle volume, the receptacle length, and the demand substance packing density. | 10-10-2013 |
| 20130298635 | Techniques for Distributed Acoustic Sensing - The application describes techniques for monitoring the rate of flow of fluid in a conduit ( | 11-14-2013 |
| 20130340498 | SYSTEM OF VERIFYING OPERATION OF ELECTROMAGNETIC FLOW METER - A system of verifying an operation of an electromagnetic flow meter, includes a plurality of comparing modules configured to compare a plurality of parameters respectively obtained from modules of the electromagnetic flow meter with threshold values respectively, to output compared results, and a determining module configured to determine in real time an operation state of a block in the electromagnetic flow meter based on at least one of the compared results output from the plurality of comparing modules. | 12-26-2013 |
| 20140060147 | SYSTEMS AND METHODS FOR MASS FLOW CONTROLLER VERIFICATION - A method and system are disclosed for verifying the flow rate of gas through a mass flow controller, such as a mass flow controller used with a tool for semiconductor or solar cell fabrication. To verify the mass flow rate measured by the mass flow controller, gas passing through the mass flow controller is also passed through a mass flow meter. The measured flow rate through the mass flow controller is compared to the measured flow rate through the mass flow meter and any difference between the two measured flow rates is determined. Depending upon the magnitude of any difference, the flow of gas to the mass flow controller may be altered. | 03-06-2014 |
| 20140069165 | INERT GAS DELIVERY SYSTEM FOR ELECTRICAL INSPECTION APPARATUS - An apparatus for electrical inspection is disclosed. The apparatus comprises an inert gas delivery system that delivers inert gas near a microscope imaging element and electrical test probes. A gas supply provides an inert gas such as argon or nitrogen. The inert gas displaces oxygen to prevent premature oxidation of the test probes. In one embodiment, one or more delivery tubes deliver inert gas to the measurement area. | 03-13-2014 |
| 20140109644 | APPARATUS, METHOD AND SYSTEM FOR CALIBRATING A LIQUID DISPENSING SYSTEM - An apparatus, method and system providing for calibration and/or control of a liquid dispensing system is disclosed. The hand-held calibration auditing tool includes a flow meter ( | 04-24-2014 |
| 20140123727 | METHOD AND APPARATUS FOR DETERMINING DIFFERENTIAL FLOW CHARACTERISTICS OF A MULTIPLE METER FLUID FLOW SYSTEM - A fluid flow system ( | 05-08-2014 |
| 20140137625 | VAPOR ELIMINATION LIQUID PROVING SYSTEM WITH TOP OR BOTTOM FILL AND BOTTOM DRAIN PROVER - A liquid proving system is provided with a small volume liquid prover draining into a liquid holding tank that has capacity for multiple proving measurements. The small volume liquid prover can either be top-filled or bottom-filled, or exclusively bottom-filled. A liquid holding tank baffle assembly contains saturated vapor from an initial number of fills of the liquid holding tank within the small volume prover to improve overall accuracy of the proving measurements. When liquid is pumped into the prover evaporation of the liquid being pumped into the prover, and release of vapors from the prover, is inhibited due to the saturated vapor environment established by a saturated vapor volume in the prover, which results in a more accurate prover measurement of liquid pumped into the prover. The saturated vapor volume is contained with a vapor tank baffle assembly in the liquid holding tank; a vapor conduit connecting the interior of the liquid holding tank to the interior of the prover; and the interior volume of the prover. | 05-22-2014 |
| 20140137626 | VIBRATORY FLOW METER AND ZERO CHECK METHOD - A vibratory flow meter ( | 05-22-2014 |
| 20140137627 | Systems and Methods for Remote Testing of a Flow Switch - Systems and methods for the remote testing of a paddle-type flow detector, such as are common in fire protection systems. Specifically, the systems and methods provide for mechanical movement of the vane to test activation of the flow detector under a flow condition, and which measure the amount of time the vane takes to return to the ready position to verify the presence of a paddle on the vane. | 05-22-2014 |
| 20140202228 | COMPENSATING FOR FREQUENCY CHANGE IN FLOWMETERS - Motion is induced in a conduit that contains a fluid. The motion is induced such that the conduit oscillates in a first mode of vibration and a second mode of vibration. The first mode of vibration has a corresponding first frequency of vibration and the second mode of vibration has a corresponding second frequency of vibration. At least one of the first frequency of vibration or the second frequency of vibration is determined. A phase difference between the motion of the conduit at a first point of the conduit and the motion of the conduit at a second point of the conduit is determined. A quantity based on the phase difference and the determined frequency is determined. The quantity includes a ratio between the first frequency during a zero-flow condition and the second frequency during the zero-flow condition. A property of the fluid is determined based on the quantity. | 07-24-2014 |
| 20140216126 | Device for Measuring a Fuel Flow and Calibrating Device Therefor - A device for measuring a fuel flow in a test stand comprises a measuring module ( | 08-07-2014 |
| 20140230519 | METHOD FOR CORRECTING OFFSET DRIFT EFFECTS OF A THERMAL MEASUREMENT DEVICE, THERMAL MEASUREMENT DEVICE AND GAS FLOW METER - A method for correcting offset drift effects of a thermal measurement device ( | 08-21-2014 |
| 20140298882 | FREQUENCY BASED PROVER APPARATUS AND METHOD - A time correlated dual chronometric interpolated prover apparatus with temporal reconciliation assembly is operable for producing signals for selecting a corrected time interval B of the flowmeter output signal for comparison with the time interval A. The temporal reconciliation assembly being configured for detecting a plurality of frequencies of pulses of the flowmeter output signal, and being further configured for selecting the time interval B utilizing the plurality of frequencies. A possible non-limiting embodiment includes the temporal reconciliation assembly being operable for utilizing an anticipated frequency for locating a first pulse. | 10-09-2014 |
| 20140305183 | AIR-FLOW SENSOR FOR ADAPTER SLOTS IN A DATA PROCESSING SYSTEM - An air-flow sensor is configured to be positioned in an air-flow and attached to a surface in a manner that allows air to flow over an extremity of the sensor. The air-flow sensor includes a base plate, a first heater, a first temperature sensor, a spacer, a second heater, a second temperature sensor, and a cap. The base plate is configured to be the coupled to the surface. The first heater is positioned on the base plate and is configured to heat the base plate. The first temperature sensor is positioned to measure a first temperature of the first heater. The spacer is positioned on the first heater and the second heater is positioned on the spacer. The second temperature sensor is positioned to measure a second temperature of the second heater. The cap is positioned on the second heater, which is configured to heat the cap. | 10-16-2014 |
| 20140305184 | TECHNIQUES FOR CALIBRATING AN AIR-FLOW SENSOR FOR ADAPTER SLOTS IN A DATA PROCESSING SYSTEM - A technique for calibrating a fluid flow sensor includes generating fluid flow at a first speed. A first temperature of the fluid flow is determined using a first temperature sensor that is positioned upstream of the fluid flow sensor. A first power is supplied to a main heater of the fluid flow sensor to adjust a second temperature of a first plate of the fluid flow sensor to be substantially equal to the first temperature, A second power is supplied to a guard heater of the fluid flow sensor to adjust a third temperature of a second plate of the fluid flow sensor to be substantially equal to a fourth temperature of the first plate. The first and second plates are separated by a spacer and the first speed and the third temperature provide a calibration point on a calibration curve for the fluid flow sensor. | 10-16-2014 |
| 20140318210 | METHOD FOR CALIBRATING MASS FLOW CONTROLLERS IN A PRINTING APPARATUS FOR DISPENSING A LIQUID COMPOSITION ON A BACKPLANE - A method for calibrating liquid flow measurements in a printing apparatus that includes a liquid flow line having a flow meter therein comprises the steps of: (a) using a positive displacement liquid pump operable while connected in fluid communication with the flow meter, pumping a liquid at a directly measured, precisely dispensed flow rate through the flow meter; (b) using the flow meter, measuring the volumetric flow rate of a liquid passed through the flow meter; (c) comparing the volumetric flow rate dispensable by the pump to a volumetric flow rate measurable by the flow meter; and (d) modifying the calibration parameters of the flow meter in accordance with the flow rate dispensed from the pump. | 10-30-2014 |
| 20140366607 | AIR FLOW RATE ADJUSTING APPARATUS - An air flow rate adjusting apparatus adjusts an output of an air flow meter based on a dimension of a gap between a back surface of a sensor chip and a bottom surface of a recess of a support plate. | 12-18-2014 |
| 20150020570 | DEVICE FOR DETERMINING A GAS MASS FLOW RATE, AND METHOD FOR RE-CALIBRATING SUCH A DEVICE - A device for determining a gas mass flow rate includes a first sensor unit comprising at least one first temperature measuring element and a first heating element. A second senor unit comprises at least one second temperature measuring element and a second heating element. A control unit is configured to adjust the first heating element to a first controlled excessive temperature. The control unit is connected to the second heating element so that the second heating element is adjustable to a second controlled excessive temperature. | 01-22-2015 |
| 20150068271 | METHOD FOR CALIBRATING A MULTIPLE FLOW CONDUIT FLOW METER - A method for calibrating a multiple flow conduit flow meter (200) is provided according to an embodiment of the invention. The multiple flow conduit flow meter (200) includes a first flow conduit (201) conducting a first flow stream and a pair of first pickoff sensors (215, 215′) affixed to the first flow conduit (201). The multiple flow conduit flow meter (200) further includes at least one additional flow conduit (202) conducting at least one additional flow stream and at least one pair of additional pickoff sensors (216, 216′) affixed to the at least one additional flow conduit (202). | 03-12-2015 |
| 20150107328 | Method for Improving Accuracy of Multiphase Mixture Flowrate Measurement in A Pipeline - To improve the accuracy of multiphase mixture flow rate measurements, properties of a multiphase mixture are determined under conditions expected inside a pipeline and flow regimes are determined for the expected flow rates. Slug reducing parameters of the pipeline are provided at a pipeline section and a flowmeter is installed at the end of that pipeline section. | 04-23-2015 |
| 20150114078 | FLOW RATE MEASUREMENT DEVICE - A flow rate measurement device of the present invention includes a flow rate signal detection unit for detecting a flow rate signal of a fluid to be measured flowing through flow path, flow rate calculation unit for calculating a flow rate from the flow rate signal detected by the flow rate signal detection unit, and oscillation circuit for generating a reference clock. Furthermore, the flow rate measurement device includes temperature calculation unit for calculating a temperature from a frequency change resulting from a temperature change of oscillation circuit, and flow rate correction unit for correcting the flow rate calculated by the flow rate calculation unit by obtaining an offset flow rate at a desired temperature based on the temperature calculated by temperature calculation unit. Thus, accuracy of flow rate measurement can be improved. | 04-30-2015 |
| 20150121988 | SYSTEM AND METHOD FOR USING A RATE OF DECAY MEASUREMENT FOR REAL TIME MEASUREMENT AND CORRECTION OF ZERO OFFSET AND ZERO DRIFT OF A MASS FLOW CONTROLLER OR MASS FLOW METER - The disclosed embodiments include a method, apparatus, and computer program product for providing a self-validating mass flow controller or mass flow meter. For example, in one embodiment, a self-validating mass flow controller is disclosed that does not require any software modification to a tool/tool controller in which the mass flow controller is being utilized. In other embodiments, a self-validating mass flow controller is disclosed that does not require any hardware or mechanical changes to an existing mass flow controller. Still, the disclosed embodiments further include a self-validating mass flow controller that is configured to determine valve leak and sensor offset simultaneously for performing real time in-situ correction of a mass flow controller's output for zero offset or zero drift in the presence of valve leak. | 05-07-2015 |
| 20150135797 | DEVICE AND METHOD FOR MULTIPHASE FLOW METER CALIBRATION USING A CLOSED LOOP MULTIPHASE FLOW SYSTEM - Calibration of a multiphase flow meter to be used in a production process can be achieved by using a closed multiphase flow loop. In the device and method of the invention, the flow rates of each phase, oil and water, are individually measured after their separation using a separation vessel, and used as a reference for the calibration of a multiphase flow meter. Flow loop control is achieved by combining an oil-water interface position control and an oil level control in the separation vessel. | 05-21-2015 |
| 20150354345 | Methods and Systems for Analyzing Flow - Methods and systems for determining the presence and/or rate of a flow of a fluid sample include transmitting light through the fluid sample are disclosed. The methods comprise, applying a series of thermal pulses to the fluid sample, the series comprises a time interval between each thermal pulse, detecting transmitted light using a light detector; and determining at least one of (a) whether or not the fluid is flowing and (b) a flow rate of the fluid, based on an intensity of the transmitted light corresponding to at least one time interval. | 12-10-2015 |
| 20150377689 | GRAIN MASS FLOW ESTIMATION - A method of calibrating a mass flow sensor while harvesting grain includes sensing an accumulated mass of a portion of grain within the grain tank with a first sensor. A mass flow rate sensor is calibrated based at least in part on a signal of the first sensor. | 12-31-2015 |
| 20150377691 | FLOW MEASURING DEVICE, AS WELL AS USE OF SUCH DEVICE AND METHOD FOR ASCERTAINING FLOW VELOCITY - A flow measuring device for ascertaining a corrected measured value of a flow velocity and/or a corrected mass flow of a medium, especially a gas, in a measuring tube, including: an apparatus for ascertaining a first measured value of flow velocity and/or mass flow of the medium by thermal, mass flow measurement; an apparatus for ascertaining velocity of sound and/or frequency dependent damping of an acoustic signal, especially an ultrasonic signal, in the medium and/or an apparatus for ascertaining an optical, wavelength dependent absorption of an optical and/or excited fluorescence of the medium, and an evaluation unit for correcting the ascertained first measured value of mass flow or flow velocity based on the ascertained sound velocity values and/or the frequency dependent, ascertained damping values of the acoustic signal and/or the ascertained absorption values of the optical signal and/or the florescence values of the medium, and method for ascertaining a corrected measured value of flow velocity and/or mass flow, and use of the device and method. | 12-31-2015 |
| 20160003665 | SYSTEM AND METHOD TO AUTOMATICALLY SELF-ADJUST A VALVE PEDESTAL OF A MASS FLOW CONTROLLER - The disclosed embodiments include a method for improving a mass flow controller. In one embodiment, the method comprising the mass flow controller executing instructions, using at least one processing component, to perform operations comprising monitoring flow during an initial response of a setpoint change from zero to non zero; determining whether a valve response fits within an allowable limit; and automatically performing a self-adjustment to correct for the valve response in response to a determination that the valve response does not fit within the allowable limit | 01-07-2016 |
| 20160033317 | SYSTEM AND METHOD FOR ASSESSING SENSORS' RELIABILITY - A method and a system are described for assessing reliability of a sensor by evaluating the sensor's reliability. The evaluation of the sensor's reliability is carried out by computing an estimate of the spread and/or the bias of measurements taken by the sensor | 02-04-2016 |
| 20160076923 | ULTRASONIC FLOW METER USING REFLECTED BEAMS - An ultrasonic transducer for a pipe includes an ultrasonic source configured to emit a sonic beam and a conically shaped reflector configured to reflect the sonic beam towards an inner wall of the pipe. An apex of the reflector opposite its base is mounted to the ultrasonic source. The conically shaped reflector may have concave outer surfaces that enable the reflector to reflect the sonic beam into waves of a collimated shape. | 03-17-2016 |
| 20160091358 | Systems and Methods for Analyzing Fluid from A Separator - A method for analyzing the reliability of a measured volumetric flow rate of a fluid in a gas outlet line of a gas-liquid separator is provided. In one embodiment, analyzing the reliability of the measured volumetric flow rate includes measuring a gas volume fraction of the fluid in the gas outlet line, comparing the measured gas volume fraction of the fluid to a threshold gas volume fraction level, and determining whether the measured volumetric flow rate of the fluid is reliable based on the comparison. Additional systems, devices, and methods are also disclosed. | 03-31-2016 |
| 20160116325 | STANDARD SIGNAL GENERATOR - To realize a stable operation and the suppression of heat generation in the case where an excitation current supplied from a converter is used to generate a power source voltage, a standard signal generator is provided. The standard signal generator includes an input circuit that includes: a rectification circuit that rectifies an excitation current; a resistor that is provided between a power source voltage output terminal for supplying a power source voltage and an output terminal of the rectification circuit; an amplification circuit that outputs an output voltage obtained by amplifying a voltage across both ends of the resistor; and a constant voltage circuit that performs control such that the power source voltage is constant. A power source voltage switch switches the power source voltage with the constant voltage circuit being controlled in accordance with the result of a comparison between the output voltage and a prescribed threshold value. | 04-28-2016 |
| 20160123792 | METHOD TO PROVIDE A QUALITY MEASURE FOR METER VERIFICATION RESULTS - A system for evaluating a flow rate measurement includes a flowmeter and a diagnostic system. The diagnostic system is configured to perform a diagnostic test for detecting a physical change in the flowmeter that could impair operation of the flowmeter, output a result of the diagnostic test, evaluate a reliability of the diagnostic test using information about a process condition, and output an indication of the reliability of the diagnostic test. | 05-05-2016 |
| 20160131516 | METHOD FOR ASCERTAINING A COMPENSATED FLOW AND/OR A COMPENSATED FLOW VELOCITY, ULTRASONIC, FLOW MEASURING DEVICE AND COMPUTER PROGRAM PRODUCT - A method for ascertaining a compensated flow and/or a compensated flow velocity, wherein the compensation of a flow related measurement error occurs in the context of a flow measurement with a two path measuring of an ultrasonic, flow measuring device, comprising: an arrangement of at least two ultrasonic transducers pairs on a tube, or pipe, wherein the ultrasonic transducers are in a 180°, two path, one traverse, or a 90°, two path, two traverse arrangement, by means of an evaluation unit of a flow measuring device and/or a computer, characterized by steps as follows: a) feeding information relative to the type of a flow influencing, tube, or pipe, element into the evaluation unit and/or into the computer; b) feeding information relative to distance (xa-xd) of the arrangement of the ultrasonic transducer pairs from the flow influencing, tube, or pipe, element into the evaluation unit and/or into the computer; c) compensating a measurement error by means of a correction factor k | 05-12-2016 |
| 20160138960 | METHOD FOR OPERATING A FLOW METER - A method recognizes wear of a flow meter, involving measuring a baseline of a characteristic of the flow meter, operating under operating conditions, as a configuration, over a calibration period; forming an average value of the baseline, and defining a reference value, an upper limit, and a lower limit, based on the average value, and cyclically measuring the baseline of the characteristic, in a measuring over a measuring period, during wear-causing operation of the flow meter; forming the average value; comparing this average value to the upper and lower limits; and issuing a warning signal when the upper limit is exceeded or when the lower limit is fallen below. | 05-19-2016 |
| 20160153825 | METHOD AND SYSTEM FOR DETERMINING AERODYNAMIC LOADS FROM DOWNSTREAM FLOW PROPERTIES | 06-02-2016 |
| 20160169731 | Method and device for diagnosing an auxiliary heating function of an air mass sensor | 06-16-2016 |
| 20170234719 | ELECTROMAGNETIC FLOWMETER CALIBRATION VERIFICATION | 08-17-2017 |
| 20180023995 | DROP EJECTION BASED FLOW SENSOR CALIBRATION | 01-25-2018 |
