| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 702100000 | Fluid or fluid flow measurement | 73 |
| 20080208504 | IMPULSE LINE-CLOGGING DETECTING UNIT AND IMPULSE LINE-CLOGGING DETECTING METHOD - This impulse line-clogging detecting apparatus is provide with: a differential pressure detecting unit that detects a differential pressure of a fluid, and outputs time series data of the differential pressure; a differential pressure fluctuation calculating unit that calculates a differential pressure fluctuation; a fluctuation variance calculating unit that calculates a variance of the differential pressure fluctuation; a variance ratio calculating unit that calculates a variance ratio of the differential pressure fluctuation variance calculated by the fluctuation variance calculating unit to a differential pressure fluctuation variance obtained in advance in a normal state of the high and low pressure side impulse lines; a variance ratio correcting unit that calculates a correction value for suppressing change of the variance ratio; and a clogging determining unit that determines whether the high and low pressure side impulse lines are clogged, based on the variance ratio corrected by the variance ratio correcting unit. | 08-28-2008 |
| 20080221822 | System and Method for Calibration of a Flow Device - Embodiments of the present invention provide a system and method for rapid calibration of a flow device. A flow device can be provided with a calibration flow curve (e.g., represented by an n | 09-11-2008 |
| 20080228424 | On-line absolute viscosity measurement system - The present invention provides systems and methods for determining the viscosity of a lubricating fluid in a process on line. The method of the present invention obviates the need to accurately control the temperature of the lubricating fluid in the system when taking fluid viscosity measurements. | 09-18-2008 |
| 20080243418 | Method Of Calibrating A Fluid-Level Measurement System - A method of calibrating a fluid-level measurement system is provided. A first response of the system is recorded when the system's sensor(s) is (are) not in contact with a fluid of interest. A second response of the system is recorded when the system's sensor(s) is (are) fully immersed in the fluid of interest. Using the first and second responses, a plurality of expected responses of the system's sensor(s) is (are) generated for a corresponding plurality of levels of immersion of the sensor(s) in the fluid of interest. | 10-02-2008 |
| 20090055119 | System and method for flow profile calibration correction for ultrasonic flowmeters - A method for calibrating a flowmeter, comprising choosing a pipe configuration from a list of pipe configurations, defining a number of diameters downstream from the pipe configuration where a transducer is to be installed, determining an initial curve number for the chosen pipe configuration, wherein the initial curve number corresponds to a predetermined flow profile correction curve, determining a swirl factor for the chosen pipe configuration, and computing a calibration factor for a given Reynolds number. | 02-26-2009 |
| 20090076759 | APPARATUS FOR MONITORING A SYSTEM WITH TIME IN SPACE AND METHOD THEREFOR - Apparatus and method for monitoring a system in which a fluid flows and which is characterized by a change in the system with time in space. A preselected place in the system is monitored to collect data at two or more time points correlated to a system event. The data is indicative of a system parameter that varies with time as a function of at least two variables related to system wash-in and wash-out behavior. A calibration map is made on a calculated basis with each pixel or voxel representative of a color hue indicative of wash-out behavior and a color intensity indicative of wash-in behavior. The calibration map serves as a criteria for selecting the time points. Software and a data processing system are provided to develop a color coded output map. The calibration map, the color coded output map and image of the preselected place are also novel implementations. | 03-19-2009 |
| 20090093983 | Method and system for measuring the fill level of a material - It is described a method to measure a fill level of a material by transmitting an ultrasonic or microwave signal towards a surface of the material using a level gauge arranged above the material surface, receiving in said level gauge an ultrasonic or microwave signal portion reflected from said material surface, measuring a temperature at least one measurement point between the level gauge and the material surface and determining in a calculation unit of the level gauge a temperature-corrected value of the fill level based on the time delay of the received signal portion with respect to the emitted signal and the measured temperature. To provide an improved level measuring method and system with increased reactivity and accuracy in compensating temperature variations at least one non-contact infrared thermometer is used to measure the temperature. | 04-09-2009 |
| 20090112504 | High Accuracy Mass Flow Verifier with Multiple Inlets - A high accuracy mass flow verifier (HAMFV) which provides high measurement accuracy over a wide flow verification range with low inlet pressures is disclosed for verifying flow measurement by a fluid delivery device. The HAMFV includes a chamber defining a plurality N of inlets with upstream valves, an outlet with a downstream valve, a pressure sensor and a temperature sensor configured to measure the pressure and the temperature of the fluid within the chamber, respectively. A plurality N of critical flow nozzles is located adjacent to the corresponding upstream valve. The HAMFV further includes a controller configured to activate one of the plurality N of critical flow nozzles based on the desired flow verification range and the fluid type by opening the corresponding upstream valve and closing all other upstream valves. At least two of the plurality N of critical flow nozzles have different cross-sectional areas. | 04-30-2009 |
| 20090125268 | Biosensor Coding System - A biosensor system determines an analyte concentration using one or more calibrated correlation equations for an optical and/or electrochemical analysis of a biological fluid. The biosensor system may be implemented using a measurement device and a sensor strip. The measurement device applies test signals to a sequential conductive pattern on a sensor strip. The measurement device selectively and sequentially connects test contacts with conductive and non-conductive areas on the sequential conductive pattern, which generates code signals in response to the test signals. The measurement device uses the code signals to calibrate one or more of the correlation equations. The measurement device uses the calibrated correlation equations to determine the analyte concentration. | 05-14-2009 |
| 20090192749 | DEVICE, METHOD, AND SYSTEM FOR CALIBRATION OF A FLOW METER USED IN CONJUNCTION WITH A VENTRICULAR ASSIST DEVICE - A blood flow calibration system | 07-30-2009 |
| 20090216477 | MEASURING APPARATUSES AND METHODS OF USING THEM - “A measuring instrument includes a transducer for measuring the depth of liquid and a transducer for measuring a physical parameter that causes interference error. A calibration polynomial is used to correct the output signal. The calibration polynomial includes the signal generated by the transducers as independent variables and the output signal as the dependent variable. The calibration polynomial is formed by a correction polynomial having at least one primary measurement signal and at least a first interference related signal as independent variables and a calibrated signal as a dependent variable. To form the calibration polynomial, a preliminary calibration polynomial including the primary independent variable and at least one interference related independent variable is developed. A plurality of data sets is generated from a test fixture. This data is used to eliminate the least significant terms of the preparatory calibration polynomial and to add the most significant cross terms”. | 08-27-2009 |
| 20090287445 | SYSTEM AND METHOD FOR CALIBRATING AND MONITORING THE CONDITION OF A SENSOR DEVICE - A system and method allow a sensor device that is used in a process stream to be efficiently calibrated and monitored as to its operating condition. The sensor device is a measuring probe with a sensor portion, a memory device and an electrical input/output port, arranged so the memory device is in communication with both the sensor portion and the input/output port. The sensor device may be connected through an electrical connector to either a first external source, such as a personal computer having an input/output port, remote from the process stream, or a second external source, such as a transmitter, proximate to the process stream. Operating software is accessible to at least the first external source for monitoring and calibrating. Database software is accessible to each of the external sources, for storing data on every measuring probe used in the system. | 11-19-2009 |
| 20090299673 | METHOD OF CALIBRATING AN ACTUATOR SYSTEM FOR A VARIABLE NOZZLE OF A TURBOCHARGER - A method for calibrating an actuator system for a turbocharger variable nozzle, the actuator system comprising an electronically controllable actuator coupled with a variable-geometry member of the nozzle and operable for causing movement thereof, and an electronic controller operable for controlling the actuator, the electronic controller having a memory for storing data. The method comprises (a) supplying a flow of fluid through the nozzle, (b) causing a continuous or stepwise movement of the actuator so as to move the variable-geometry member to cause a continuous or stepwise change in flow rate of the fluid through the nozzle, monitoring the changing flow rate, and recording at least two different points representing two different actuator positions and corresponding flow rates, and (c) storing in the memory of the electronic controller a multi-point calibration representing actuator position as a function of an input parameter designed to achieve a desired flow rate. | 12-03-2009 |
| 20090312977 | Meter Electronics and Methods for Geometric Thermal Compensation in a Flow Meter - Meter electronics ( | 12-17-2009 |
| 20100004889 | MULTI-GAS FLOW SENSOR WITH GAS SPECIFIC CALIBRATION CAPABILITY - A multi-gas/gas-mixture or liquid flow sensor apparatus utilizing a specific media calibration capability. The flow sensor can be coupled with an Application Specific Integrated Circuit (ASIC) that incorporates a signal conditioner and a memory module. The signal conditioner provides a high order calibration and signal processing of flow signals from the sensor to a processed signal output representative of the flow. The processed signal output can be stored in the memory module. A correction factor can be calculated and stored in the memory module in response to the stored values of the processed signal output, which tends to linearize the relationship between the flow rate and the processed signal output of a measuring system. The correction factor and/or the processed signal output provided by the signal conditioner can be utilized by the measuring system. | 01-07-2010 |
| 20100049461 | MASS FLOW CONTROLLER WITH IMPROVED DYNAMIC - A system and method of compensating for pressure variations in a flow controller entails the use of the compressibility of the gas being controlled to provide a more accurate measurement of the flow. | 02-25-2010 |
| 20100063765 | Flow Sensor Calibrated by Volume Changes - An infusion pump and method are provided which combine flow rate measurements calibrated by accurate volume measurements over time. | 03-11-2010 |
| 20100161267 | Device and Method for Automatic Calibration Verification of an Analyzer - A method and a device for carrying out calibration verification (CV process) of an analyzer for determining different measurement parameters in body fluids is provided. The device according to the invention comprises the following components: a cartridge with a plurality of containers, which can be connected to an intake system of an analyzer, each of which contains a measurement fluid with known measurement parameter values; a storage unit assigned to the cartridge for storing the measurement parameter values of the measurement fluids and data relevant for the CV process of the analyzer to be verified; a docking or intake area at or in the analyzer for receiving the cartridge with a data path for reading the storage unit; an evaluation unit typically housed in the analyzer for evaluating the values measured by the analyzer; and an output unit for printing an evaluation protocol. | 06-24-2010 |
| 20100191497 | ENCAPSULATED WATER TREATMENT SYSTEM - A water treatment system is provided having an encapsulate manifold with a reverse osmosis cartridge and one or more filter cartridges. The filter cartridge includes a detent for being received within a slot in the manifold head for secure locking engagement. The water treatment system further includes a single probe conductivity monitoring system for monitoring the performance of a reverse osmosis membrane. The water treatment system is also provided in a modular arrangement wherein manifold heads are physically and fluidly coupled together via a clip which interfaces with the modular manifold heads. The water treatment system also allows for a retrofit application to include a permeate pump. The cartridges are also designed to provide a minimum annular inlet gap to minimize spillage during changing of the cartridges. | 07-29-2010 |
| 20100198547 | DIFFERENTIAL PRESSURE SYSTEMS AND METHODS FOR MEASURING HYDRAULIC PARAMETERS ACROSS SURFACE WATER-AQUIFER INTERFACES - The systems and methods described herein related to measuring hydraulic parameters across a surface water-aquifer interface. In particular, the systems include a pressure differential sensor within a watertight housing. The pressure differential sensor has two inlets, one of which is connected to a piezometer located in an aquifer, and the other of which is connected to a surface water body. A solenoid valve allows the systems to switch between a first, measurement configuration and a second, calibration configuration. A pump and a conductivity-temperature sensor enable a third and fourth configuration for measuring the electrical conductivity and temperature of surface water and groundwater. The collected data is then locally stored or transmitted wirelessly. The low-power components and calibration capabilities of the systems allow for long-term deployment, on the order of six months or more. | 08-05-2010 |
| 20100204945 | System and Method for Detecting Fluid Delivery System Conditions Based on Motor Parameters - Systems and methods for detecting various system conditions in a fluid delivery system (such as an HVAC system) based on a motor parameter are disclosed. Embodiments of the present invention relate to detecting: filter condition, frozen coil condition, register condition, energy efficiency, system failure, or any combination thereof. Embodiments of the present invention relate to detecting fluid delivery system conditions based on motor parameters including system current, system power, system efficiency, motor current, motor power, motor efficiency, and/or a change (or rate of change) in motor parameters. Techniques for responding to a clogged filter and a frozen coil are also disclosed. Also disclosed are techniques for characterizing a fluid delivery system off-site, prior to system installation. | 08-12-2010 |
| 20100211346 | WET GAS MEASUREMENT - A multi-phase process fluid is passed through a vibratable flowtube. Motion is induced in the vibratable flowtube. A first apparent property of the multi-phase process fluid based on the motion of the vibratable flowtube is determined, and an apparent intermediate value associated with the multi-phase process fluid based on the first apparent property is determined. A corrected intermediate value is determined based on a mapping between the intermediate value and the corrected intermediate value. A phase-specific property of a phase of the multi-phase process fluid is determined based on the corrected intermediate value. | 08-19-2010 |
| 20100241387 | PROVER SELF TESTING AND VALIDATION APPARATUS - A prover includes a piston supporting rod extending longitudinally through a cylinder, which cylinder receives and discharges a fluid to measure the volume and flow rate of the fluid by translation of the piston from the fluid receiving end to the fluid discharging end. Motive means includes at least one element for drawing the rod and piston toward the fluid receiving end of the cylinder. Travel of the piston in the direction from the fluid receiving end to the fluid discharging end of the cylinder is sensed at discrete locations to provide an indication of the quantity of fluid therebetween and the related flow rate. Each of a plurality of switches, linear encoder or laser detector provides position sensing signals reflective of the volume and rate of fluid flowing in the cylinder. These signals, representative of this volume and flow rate, are compared with preset parameters to determine the degree of equivalence. Thereby, self testing and validation occurs. | 09-23-2010 |
| 20110029268 | METHODS FOR DELIVERING A PROCESS GAS - A method for delivering a process gas to a reaction chamber of a plasma processing system using a recipe having a recipe flow rate is provided. The method includes delivering the process gas by a gas flow delivery system controlled by a mass flow controller (MFC) to an orifice. The predicted flow rate is previously computed by pressurizing a gas. The predicted flow rate further being previously computed measuring a set of upstream pressure values of the gas via at least one pressure sensor. The method also includes applying, using a programmed computing device, a calibration factor of a set of calibration factors to determine the predicted flow rate, the calibration factor being a ratio of an average of the set of upstream pressure values to an average of a set of golden upstream pressure values. | 02-03-2011 |
| 20110093230 | DEVICE, METHOD, AND SYSTEM FOR CALIBRATION OF A FLOW METER USED IN CONJUNCTION WITH A VENTRICULAR ASSIST DEVICE - A blood flow calibration system | 04-21-2011 |
| 20110093231 | APPARATUS FOR MONITORING A SYSTEM WITH TIME IN SPACE AND METHOD THEREFOR - Apparatus and method for monitoring a system in which a fluid flows and which is characterized by a change in the system with time in space. A preselected place in the system is monitored to collect data at two or more time points correlated to a system event. The data is indicative of a system parameter that varies with time as a function of at least two variables related to system wash-in and wash-out behavior. A calibration map is made on a calculated basis with each pixel or voxel representative of a color hue indicative of wash-out behavior and a color intensity indicative of wash-in behavior. The calibration map serves as a criteria for selecting the time points. Software and a data processing system are provided to develop a color coded output map. The calibration map, the color coded output map and image of the preselected place are also novel implementations. | 04-21-2011 |
| 20110125445 | THERMAL TYPE MASS FLOW METER, AND THERMAL TYPE MASS FLOW CONTROL DEVICE - The present invention provides a thermal type mass flow meter and a thermal type mass flow control device which can lower a measurement error caused by an influence of a thermal siphon phenomenon so as to intend to improve a flow rate measurement precision while it is possible to construct a whole compactly and inexpensively with a simple structure, without using any flow path converting block. | 05-26-2011 |
| 20110130997 | FLOW METER PROVING METHOD AND SYSTEM - A flow meter prover ( | 06-02-2011 |
| 20110144938 | METHOD AND APPARATUS FOR DIRECTING THE USE OF A CORIOLIS FLOW METER - A method and apparatus is disclosed that guides a user through a sequence of steps that will allow the user to complete a predefined task using the flow meter. The steps include: selecting a predefined task, displaying a sequence of steps that directs the user through a process for using the Coriolis flow meter to complete the predefined task, and operating the Coriolis flow meter in response to the sequence of steps to complete the predefined task. | 06-16-2011 |
| 20110231136 | MEASUREMENT APPARATUS - A measurement apparatus is disclosed in which a barrier ( | 09-22-2011 |
| 20110231137 | METHOD AND DEVICE FOR CALIBRATING MEASURING TRANSDUCERS OF ULTRASONIC FLOW METERS - The invention relates to a method for calibrating the transmitters of ultrasonic flow meters according to the transit time difference method. The object of the invention is to provide a method for calibrating the transmitters of ultrasonic flow meters, said calibration being able to be carried out independently of the other components of the meter, such as the acoustic transducers and the pipe in which the fluid flow being measured occurs. According to the invention, the measurement signals are generated by means of an artificial simulation of the measurement path. This allows the transmitter to be calibrated independently of the remaining components of the measuring apparatus, such as the measuring tube and the acoustic transducers. | 09-22-2011 |
| 20110238352 | False Echo Storage in Case of Container Noise - The invention relates to false echo storage in the area of level measurement. The decision as to whether or not to initialize and/or update the false echo memory is made using at least one value for the sensor-inherent noise, container noise and/or EMC noise for this purpose. This may make it possible to avoid identifying a false echo as the level echo. | 09-29-2011 |
| 20110257922 | AIR POLLUTION SAMPLING SYSTEM AND METHOD THEREOF - An air pollution sampling system and a method thereof applied to a wide-area air sampling are revealed. Air is forced into an air sampling unit by movement of a vehicle, for performing an active air sampling without a power source. An air sampling unit includes a plurality of baffle plates so as to adjust air sampling rate and avoid interference caused by turbulence generated during the movement of the vehicle. A positioning device provides geographic coordinates, vehicle speed and time. An information processing device integrates sampling flow and positioning information from the positioning device, collects information generated by the sampling system, and computes statistics of the accumulated samples and relative sampling positions. By the collected sampling positions, time and flow rate, the sampling amount is obtained through data processing and calculation. In combination with the display of positioning data, the geographic area represented by the air samples could be understood more clearly. | 10-20-2011 |
| 20110301899 | Method for calibrating a device for measuring phase fractions of polyphase fluid under flow conditions, measuring method, and related device - This method comprises taking a first pressurized gaseous phase sample in a flow channel and transferring the first sample in the measuring channel. It comprises activating a second sensor to collect a first piece of information representative of the first pressurized sample. The method comprising taking a second pressurized liquid phase sample, transferring the second sample in the measuring channel and activating the second sensor a second piece of information representative of the second pressurized sample. The method comprises the computation of at least one calibration coefficient connecting the property to the or each piece of information received from the sensor, based on the first piece of information and the second piece of information. | 12-08-2011 |
| 20110313704 | PHYSICAL QUANTITY SENSOR - A pressure detector detecting a pressure of cold or hot water; a temperature detector detecting a temperature of a pressure sensor; correcting equation storage storing, cold water correcting equation information applied when the temperature detected by the temperature detector is included in a cold water temperature range, and hot water correcting equation information applied when the temperature detected by the temperature detector is included in a hot water temperature range; a temperature range determiner determining the temperature range that includes the temperature detected by the temperature detector as either a cold water temperature range or a hot water temperature range; and a correction calculating portion using the correcting equation corresponding to the temperature range determined by the temperature range determiner correcting the detection signal by the pressure detector, and outputting the post-correction signal as a measurement signal. | 12-22-2011 |
| 20120041704 | NOISE DETECTION AND AVOIDANCE - A process variable transmitter includes a sensor drive controller that outputs a sensor drive signal that is used to drive a sensor that senses a process variable. The sensor drive controller changes the frequency of the sensor drive signal to avoid frequencies and associated harmonics at which noise occurs and which could interfere with the sensor signal. | 02-16-2012 |
| 20120166125 | METHOD FOR IN-SITU CALIBRATING A DIFFERENTIAL PRESSURE PLUS SONAR FLOW METER SYSTEM USING DRY GAS CONDITIONS - A method and system for in situ calibrating a flow metering system to monitor fluid flow in a pipe from a well is provided. The method includes the steps of: a) measuring a first characteristic of the fluid flow exiting the well using a DP flow meter during a dry gas period, and producing an first output data representative of the first characteristic; b) measuring a second characteristic of the fluid flow exiting the well using a SONAR flow meter time during the dry gas period, and producing a second output data representative of the second characteristic; c) determining a dry gas offset between the DP flow meter and the SONAR flow meter based on the first output data and the second output data; and d) calibrating the flow metering system using the dry gas offset. | 06-28-2012 |
| 20120185197 | Self calibrating home site fuel usage monitoring device and system - A home site fuel monitor device in conjunction with a remote central site system to provide accurate fuel usage data used in planning fuel deliveries. The fuel monitor device is U an internet based, compact, and low cost home heating site monitor device that is easily installed in the home heating site without modification to the home site's heating system. The monitor device includes a microprocessor which measures heating system run times using real time clock values. The microprocessor computes heating system fuel usage and the rate of fuel usage using heating system run times and heating burner parameters down loaded from the remote central site system. The monitor device continuously adjusts or recalibrates the rate of fuel usage defined as a burn coefficient value to coincide with the latest delivery information received from the central site system which results in increased accuracy over time. | 07-19-2012 |
| 20120226461 | SYSTEM AND METHOD FOR CALIBRATING AN AGRICULTURAL PRODUCT METERING SYSTEM - A system for calibrating an agricultural product metering system is provided including a calibration unit configured to be mounted to the agricultural product metering system. The calibration unit includes a load cell configured to measure a calibration weight of product exiting the agricultural product metering system, and the calibration unit is configured to output signals indicative of the calibration weight of the product. The calibration system also includes a controller configured to receive the signals and to calculate a product flow rate based on the calibration weight. | 09-06-2012 |
| 20120239336 | FLOW SENSING METHOD WITH TEMPERATURE COMPENSATION - A method for calibrating a temperature compensation coefficient for a device ( | 09-20-2012 |
| 20120310579 | IMPROVEMENTS IN VIBRATING TUBE DENSITOMETERS - The invention provides a method of calibrating a vibrating tube densitometer intended to operate at combined elevated temperatures and pressures. | 12-06-2012 |
| 20130013242 | Cross Calibration of Two Energy Dispersive X-Ray Baggage Screening Systems Including Transformation of the Reference Database - A method of calibration of a dataset for spectroscopically resolved radiation scanning, comprising the steps of: generating an apparatus condition specific calibration dataset of emergent radiation intensity information generated after interaction in the scanning zone of at least one standard object spectroscopically resolved into a plurality of frequency bands; providing a transferable database comprising a dataset of transferable data items of emergent intensity information for a range of component materials, each spectroscopically resolved into a plurality of frequency bands and linked to the condition specific calibration dataset; defining a reference calibration dataset; generating a transfer function between the data item and the reference calibration dataset; applying the transfer function to the transferable data item to generate a dynamic data item adjusted to the reference calibration; populating a data register with a dynamic dataset comprising a dataset of data items each dynamically adjusted to the reference calibration. | 01-10-2013 |
| 20130030748 | METHOD FOR DETERMINING A DOSED, OR METERED, VOLUME OF AN AUTOMATIC PERISTALTIC SAMPLE TAKER - A method for determining a dosed, or metered, volume of an automatic peristaltic sample taker, in the case of which a measured, dosed, or metered, volume of the peristaltic sample taker is corrected by means of a calibration map. In order to improve accuracy in the determining of the dosed, or metered, volume, during a calibration phase, the calibration map is corrected by means of a correction curve, which depends on a negative pressure arising in the suction region of the peristaltic sample taker. | 01-31-2013 |
| 20130041611 | METHOD OF AND SYSTEM FOR CALIBRATING GAS FLOW DILUTORS - The preferred embodiments described herein make possible to use lower cost, fixed flow components, such as critical orifices, which are fast to stabilise to a steady flow. These cannot be adjusted to achieve equal flows but are selected to be sensibly close to their desired flow values. This embodiment determines the true ratios of the flows of all of the flow controlling components. Actual flows are not measured but near equal flows are each fed to a common flow meter and the ratio of the indicated flow meter readings is taken to be the same as the ratio of the flows. Two, near equal flows are then combined and compared to a single flow of approximately the same value, and so on. The flow meter is used only to compare near equal flows so does not need to be calibrated nor linear over a wide range. | 02-14-2013 |
| 20130073242 | SMALL VOLUME PROVER APPARATUS AND METHOD FOR MEASURING FLOW RATE - A small volume prover apparatus and method for precisely measuring the flow rate of a fluid via a cylindrical component such as a flow tube. A precision bore cylinder and a piston can be configured with a valve arrangement in order to permit fluid to pass through an annular passage when the piston travels from one position to an opposite position. An accelerometer sensor can be mounted to the piston for continuously detecting the velocity of the piston traveling in the pipe by integrating acceleration data with respect to time data. The volumetric flow rate can be automatically calculated by multiplying the velocity with respect to the area of the flow tube. | 03-21-2013 |
| 20130073243 | Method, Computer Program, and Apparatus for Detecting Pipetting Errors - Methods, computer programs, data carriers and apparatus and systems for detecting pipetting errors include: (a) during pipetting, measuring the pressure in the tip of a pipetting device and determining an earlier rate of change of the pressure δ | 03-21-2013 |
| 20130124131 | ULTRASONIC TYPE FLOWMETER APPARATUS AND METHOD OF USING THE SAME - A disposable conduit | 05-16-2013 |
| 20130132020 | METHOD AND FACILITY, USING TRANSFER BETWEEN A GAS AND A LIQUID, FOR PREDETERMINING AT LEAST ONE CONVERSION PARAMETER - Said method for predetermining at least one conversion parameter uses at least one transfer between a liquid phase and a gas phase, wherein: a gas phase is injected into a liquid phase so as to form a heterogeneous flow including a series of bubbles, formed from the gas phase, within the liquid phase; said heterogeneous flow is caused to occur within a flow member so as to carry out at least one transfer between the liquid and gas phases; the decrease in the volume of the bubbles is observed along said flow member; and said at least one parameter is derived therefrom. | 05-23-2013 |
| 20130151188 | METHOD AND SYSTEM FOR NON-INVASIVELY MONITORING FLUID FLOW IN A SUBJECT - A fluid flow monitoring system is provided that has a processor utility which is connectable to an acoustic generator associated with acoustic ports and is operable for generating signals S | 06-13-2013 |
| 20130211767 | OFFSET COMPENSATION FOR FLOW SENSING DEVICES - There is described herein a flow sensing device having offset compensation and an offset compensation method, the flow sensing device having two separate and independent thermal flow sensors, each containing a heater and at least one temperature-sensitive element. The components of the two thermal flow sensors are connected such that flow-dependent contributions of each sensor into a common output signal have opposite signs after passing through a subtracting node. Heating pulses are applied to the heaters of the two thermal flow sensors out of phase, and an output signal is measured for each heat pulse applied. A net output signal is then determined by calculating a difference between a last output reading and at least one previous output reading. | 08-15-2013 |
| 20130218503 | CORIOLIS MASS FLOW METER AND SIGNAL PROCESSING METHOD FOR A CORIOLIS MASS FLOW METER - Signal processing is disclosed for a Coriolis mass flow meter with one or more measuring tubes and meter electronics, which includes determining relevant modal properties of the flow meter during a measurement process, and adaptively correcting a current measurement result with the relevant modal properties of the flow meter obtained during the measurement process. | 08-22-2013 |
| 20130253872 | FLOW METER CALIBRATION SYSTEM - A method to calibrate a flow meter includes passing a predetermined volume of fluid through a flow meter for calibration and determining a time duration of calibration from a start time to a stop time. One or more characteristics of the flow rate of the fluid is measured with the flow meter during the time duration and a plurality of time stamped measurements based on the one or more measured flow rate characteristics are generated. The flow meter is then calibrated based on the start time, the stop time, and the plurality of time stamped measurements. | 09-26-2013 |
| 20130253873 | CALIBRATION OF FLOWMETERS - There is described herein a method for calibrating gas flowmeters comprising only one calibration procedure performed at the device level. The step of calibrating the differential pressure sensor itself may be omitted, and the design of the sensor may therefore be simplified by eliminating the sensor conditioner and instead using a microcontroller on the device for signal processing. This is done by a two-point calibration procedure with the use of three correction coefficients to compensate for the variability of flow tubes and pressure sensors. | 09-26-2013 |
| 20140019077 | DECONVOLUTION METHOD FOR EMISSIONS MEASUREMENT - Disclosed is a method of correcting a response of an instrument. The method includes determining an inverse convolution function, the inverse convolution function being in the time domain. A response of an instrument to an exhaust sample is recorded as a function of time. The recorded response is then convolved with the inverse convolution function, the result being a convolution corrected instrument response. | 01-16-2014 |
| 20140046612 | Method for calibrating a sensor for turbidity measurement - A method for calibrating a sensor for measuring turbidity and/or solids content of a medium, wherein the sensor comprises at least one transmitting unit and at least two receiving units. The method comprises the steps of registering at least two measurement signals, which depend on the intensity of light scattered in the medium, wherein the light is sent from the transmitting unit and received by the receiving unit, abstracting the measurement signals to a feature vector, automatic selecting of a calibration model based on the feature vector, wherein the feature vector is transmitted to an earlier trained classifier and the classifier associates the calibration model with the feature vector, and calibrating the sensor with the automatically selected calibration model. | 02-13-2014 |
| 20140067307 | Method of Calibration Intended to Be Used in A Process of Determining The Content of A Plurality of Compounds Contained in A Drilling Fluid - Method of calibration intended to be used in a process of determining the content of a plurality of compounds contained in a drilling fluid, the method comprising obtaining a calibration mud; performing a gas extraction from said calibration mud with at least two extraction stages in order to obtain at least two extracted gases; measuring parameters representative of the quantities of said calibration compounds in said extracted gases; and calculating correction factors using said measured parameters, the correction factors being intended to be used in said process. | 03-06-2014 |
| 20140067308 | Automated System and Method for Monitoring Chromatography Column Performance, and Applications Thereof - The present invention provides automated systems and methods for monitoring column performance in process chromatography, and applications thereof. In an embodiment, column performance is monitored by generating a plurality of process values such as, for example, conductivity values or pH values with a detector during a chromatography step transition between a first mobile phase liquid and a second mobile phase liquid. The process values are transformed to form transformed process values in which noise present in the process values is suppressed. Column performance parameters are calculated based on the transformed process values and displayed during movement of the second mobile phase liquid through the chromatography column. The displayed performance parameters enable an operator to make a determination, for example, regarding the quality of the chromatography column packing and whether to continue the chromatography process or stop the chromatography process until the chromatography column can be repacked or replaced. | 03-06-2014 |
| 20140122008 | Device and Method for Measuring Mass Flow Rate of Fluids - In a device and method for measuring a mass flow rate of a fluid, a housing has two hollow pipes communicating with one another and having a fluid inlet and a fluid outlet, an electromagnetic excitation unit excites vibrations in the hollow pipes, two electromagnetic adapters are associated correspondingly with the two pipes and provides signals which are proportional to a speed of vibrations of the pipes of said housing, and an electronic block connected with the electromagnetic excitation unit and with the electromagnetic adapters determines a mass flow rate of a fluid, a correction associated with inclusions in the fluid and constituted by a ratio of a voltage amplitude of the adapters and a voltage amplitude of excitation of vibrations by the electromagnetic excitation unit, and a corrected mass flow rate of the fluid based on the determined mass flow and the determined correction. | 05-01-2014 |
| 20140163916 | Techniques for Iterative Reduction of Uncertainty in Water Distribution Networks - In one aspect, a method for reducing uncertainty in a hydraulic model of a water distribution network due to uncertain parameters and faults in the water distribution network is provided which includes the steps of: (i) calculating an optimized placement of sensors throughout a given uncertain section of the water distribution network; (ii) collecting data from the sensors; (iii) partitioning the given uncertain section of the water distribution network into observable and unobservable sub-sections based on the hydraulic model and a) a position, b) a number, and/or c) a type of the sensors that are available; (iv) correcting uncertain parameters and identifying faults for each of the observable sub-sections; (v) calculating a global uncertainty value for each of the unobservable sub-sections; and (vi) repeating the steps (i)-(vi) iteratively, at each iteration selecting an uncertain sub-section of the water distribution network, until no uncertain sub-sections of the water distribution network remain. | 06-12-2014 |
| 20140188421 | Apparatus and Method for Calibration of Coriolis Meter for Dry Gas Density Measurement - A computer system is described. The computer system is provided with a processor and a computer readable medium. The computer readable medium stores computer executable instructions that, when executed, cause the processor to receive a first reference density measured at a first pressure and a second reference density measured at a second pressure. The first and second reference densities are measured at a reference temperature. The computer system receives a first tube period measured at the first pressure and a second tube period measured at the second pressure for a Coriolis meter, with the first and second tube periods measured at the reference temperature. The computer system receives at least two test densities and at least two test periods. The test densities and the test periods are measured at at least two test temperatures. The computer system associates an offset and a temperature correction factor with the Coriolis meter. | 07-03-2014 |
| 20140236521 | Methods for Calibrating a Fugitive Emission Rate Measurement - Methods for calibrating an emission rate measurement of a gas are provided. The methods involve discharging a reference gas that is the same or a different composition than a subject gas. If the same or similar, then a combined emission rate of the reference and subject gas is measured, as well as an emission rate of the subject gas only. A deviation, or an one or more adjusted parameter, of the combined and subject gas measurement from the reference gas discharge rate is used to calibrate the subject gas measurement. If the reference gas is different, the emission rates of the subject and reference gas are measured, and a deviation, or an one or more adjusted parameter, of the measured rate from the discharge rate of the reference gas is used in calibrating the subject gas measurement. The methods may also use a modified 2-D tracer measurement as a reference. | 08-21-2014 |
| 20140288869 | FLUID DISPENSER CALIBRATION METHOD - A method of calibrating a dispenser includes dispensing a dose of product from a dispenser reset to an uncorrected state and measuring a single dose of product from a draw representative of an average dose (typically dispensed when the product tank is at mid-fill level). Pre-determined equations relating a calibration offset, a timing constant, desired portion sizes, and a degradation factor to the average expected dispense throughout a tank of product and the expected variation in these doses are employed to derive the degradation factor characteristic of the specific dispenser, calculate calibration and timing factors, and adjust the equipment dispense control function accordingly. | 09-25-2014 |
| 20140309959 | METHODS OF CALIBRATION TRANSFER FOR A TESTING INSTRUMENT - A method of calibration transfer for a testing instrument includes: collecting a first sample; generating a standard response of a first instrument based, at least in part, on the first sample; and performing instrument standardization of a second instrument based, at least in part, on the standard response of the first instrument. Data corresponding to a second sample is then obtained using the second instrument and a component of the second sample is identified based, at least in part, on a calibration model. | 10-16-2014 |
| 20140316734 | METHOD AND APPARATUS FOR SELF-CALIBRATION OF DENSITY PROFILER - A process and system for self-calibration of a density profiler is disclosed. The process may include measuring a density profile of a fluid in a vessel using a plurality of sensors or a single sensor, and measuring a density profile of the fluid in the vessel using a plurality of sample ports. A density of the fluid proximate a location of at least one of the plurality of sample ports based on the sensor measured density profile may then be interpolated. A density of the fluid proximate a location of at least one of the plurality of sensors based on the sample port measured density profile may also be interpolated. Adjustment of a calibration of at least one of the plurality of sensors may then be made based on both the interpolated sample port density and the interpolated sensor density. | 10-23-2014 |
| 20140372062 | CALIBRATION METHOD AND CALIBRATION TOOL FOR IN-MOLD MOLTEN METAL LEVEL METER - A length from a lower end position of the detection head ( | 12-18-2014 |
| 20150019154 | FIELD DEVICE AND DATA PROCESSING METHOD - A field device includes one or more processors configured to perform a first processing with reference to safety-critical data and a second processing with reference to safety-uncritical data which is less critical than the safety-critical data, wherein the one or more processors are configured to generate a first request for storing the safety-critical data in the second processing, store the safety-critical data into a storage unit in the first processing in accordance with the first request, and store the safety-uncritical data into the storage unit in the second processing. | 01-15-2015 |
| 20150032400 | METHOD FOR MANAGING A THERMODYNAMIC DEVICE FOR A MOTOR VEHICLE, SYSTEM, PROGRAM, RECORDING MEDIUM AND ASSOCIATED VEHICLE - A method for managing a thermodynamic device for a motor vehicle, a system, a program, a recording medium and an associated vehicle. The method manages a thermodynamic device for a motor vehicle including a heat-transfer fluid circuit, and includes an initial verification in which a functional state or a failure state in the heat-transfer fluid circuit is detected by taking a first measurement of pressure of a heat-transfer fluid in the heat-transfer fluid circuit and comparing same with a first threshold and, after the initial verification during which a failure state was detected, performs confirming the failure state during which a new verification is carried out by taking a second pressure measurement and comparing same with a second threshold. | 01-29-2015 |
| 20150112628 | GAS FLOW METER PROGRAM OF CONSTRICTION DEVICE AND FLOW MEASUREMENT METHOD AND FLOW MEASUREMENT DEVICE USING SAME - A gas flow measuring method includes a gas flow measuring program and a flow measurement device. A type of gas to be measured, a temperature, a pressure, a pressure difference, an inlet diameter and a throat diameter of the flow measurement device are input. An input constant (including adiabatic index, gas viscosity, and gas density) database according to the type of the gas. An expansion coefficient is calculated using the input adiabatic index, diameter ratio, and pressure ratio. A coefficient of runoff is corrected. The calculated expansion coefficient, the corrected coefficient of runoff, and the pressure difference, the throat diameter, the diameter ratio, and the gas density are substituted in a gas flow measurement formula and calculated. | 04-23-2015 |
| 20150112629 | VALIDATION METHOD FOR AUTOMATED ANALYZERS - Method for validating the accuracy of automated analyzers by performing an improved dual dye ratio method procedure that uses at least first and second dye solutions in combination with gravimetric measurement of selected test solutions. | 04-23-2015 |
| 20150142363 | Model-based noise suppression for level indicators - A model is based on noise-suppression technique in level indicators that uses mutually independent mathematical models, the quality of each of which models is calculated by comparing with measured values. The models are then weighted and combined, or a single model is selected, in order to calculate the level at a later point in time. Effective noise suppression may be achieved by these means. | 05-21-2015 |
| 20160041026 | Method of determining pump flow in twin screw positive displacement pumps - Techniques are provided for tuning a twin screw positive displacement pump having a signal processor with a signal processor to receive signaling containing information about actual pump performance data for actual rated conditions captured during a tuning function related to the operation of a twin screw positive displacement pump; and determine corrected pump performance data to operate the rotary positive displacement pump by compensating pump performance data being used for operating the twin screw positive displacement pump based at least partly on the actual pump performance data for the actual rated conditions captured during the tuning function. The corrected pump performance data includes corrected published pump performance data having a corrected published rated power and slip factor, and the actual pump performance data contains information about actual power, specific gravity and viscosity related to the operation of the twin screw positive displacement pump and received from a pump controller or controlling device, including a variable frequency drive. | 02-11-2016 |
| 20160169730 | FLOW METER AND A METHOD OF CALIBRATION | 06-16-2016 |
| 20190145956 | Dual bottle design for ignition interlock calibration | 05-16-2019 |
