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Using differential pressure

Subclass of:

073 - Measuring and testing

073861000 - VOLUME OR RATE OF FLOW

Patent class list (only not empty are listed)

Deeper subclasses:

Class / Patent application numberDescriptionNumber of patent applications / Date published
073861520 With restriction 74
073861650 Pitot 38
073861470 Pressure applied to movable member (e.g., a diaphragm) 10
073861430 With time integration 1
20130104668METHOD AND APPARATUS FOR MEASURING VOLUME FLOW RATE OF LIQUID FLOWING INTO A CONTAINER AND/OR VOLUME OF LIQUID WHICH HAS FLOWED INTO THE CONTAINER05-02-2013
073861490 Pressure applied to liquid column or reservoir 1
20130319133VORTEX FLOWMETER AND ASSOCIATED FIBER DUCT - A vortex flowmeter having a optical fiber channel in the device wall, a first sealing element extending into the fiber channel with a contact surface for the optical fiber and at least a second sealing element with a contact surface for the optical fiber, wherein second sealing element being guided in a guide in the device wall. In a sealed state of the fiber fiber channel, the second sealing element is pressed against the contact surface of the first sealing element by a positioning means with the optical fiber located between the contact surfaces of the sealing elements and enclosed thereby, and in this manner, the fiber channel is closed by the first sealing element, the second sealing element and the optical fiber guided between the first sealing element and the second sealing element.12-05-2013
Entries
DocumentTitleDate
20080202256Dynamic Pressure Probe - The invention relates to a dynamic pressure probe for universal use, which enables different types of mounting of the connection lines without complex adapters and/or round arches. The dynamic pressure probe comprises a probe head inside of which channels run, which lead to the part of the probe that, during a measurement, is located in the medium to be measured, and which lead to adapters mounted on the probe head, said probe head having a rectangular cross-section. The axes of the channels are located on the diagonals that run between two corners of the probe head, and the channels can be reached from two outer surfaces of the probe head via transversal boreholes.08-28-2008
20080236298Wet Gas Metering Using A Differential Pressure And A Sonar Based Flow Meter - A method and apparatus for measuring wetness of a gas flow within a conduit is provided that includes a first pressure sensor, a second pressure sensor, a sonar based flowmeter, and a processing device. The first pressure sensor is operable to sense the pressure of the gas flow within the conduit at a first position. The second pressure sensor is operable to sense the pressure of the gas flow within the conduit at a second position. The second position is located downstream of the first position an amount sufficient that the gas flow experiences a pressure drop. The sonar based flowmeter is configured to determine a volumetric flow rate of the gas flow. The processing device is in communication with the first and second pressure sensors and the sonar based flowmeter. The processing device is adapted to determine a difference in the pressure sensed by the first and second pressure sensors, and to determine the wetness of the gas flow using the difference in pressure and the volumetric flow rate.10-02-2008
20080264181Flow sensor chip - A flow sensor has an inlet chamber with a first pressure sensor and an inlet port for receiving fluid, and an outlet chamber with a second pressure sensor and an outlet port. The flow sensor also has an anemometer in fluid communication with at least one of the two chambers.10-30-2008
20090019946Gas pump filter optimization and alarm system with GPS and web enabled monitoring - An apparatus for monitoring fuel filter performance and transmitting performance information. The performance information may be transmitted wirelessly to a computer or a wireless telephone and then transmitted to a technician. The performance information is preferably transmitted with location information which identifies the location of the filter for which maintenance is required. The information may also be transmitted to a web server which can store the information in a database and also send information via text messaging or telephone voice transmission or other automatic electronic transmission mechanism.01-22-2009
20090044638VELOCITY BASED METHOD FOR DETERMINING AIR-FUEL RATIO OF A FLUID FLOW - A method for determining one or more fluid flow parameters for a fluid flowing within a pipe is provided. The fluid is a mixture of solid particles and gas. The method includes the steps of: a) providing a meter operable to determine the velocity of the fluid flow through the pipe, which meter is substantially insensitive to the particulate/gas mass ratio of the fluid flow; b) determining the velocity of the fluid flow within the pipe using the meter; and c) determining a particulate/gas mass ratio using a density value for the gas within the flow and the determined fluid flow velocity.02-19-2009
20090120207FLOW CONTROL VALVE - A flow control valve has upstream fluid pressure outlets provided between inner and outer circumferential surfaces of an upstream retainer, which is attached to an upstream inner surface of a valve body. A second conduit is provided between inner and outer surfaces of the valve body on the upstream side of the valve body. First conduits are formed between the valve body and the upstream retainer. Downstream side fluid pressure outlets are provided between inner and outer surfaces of a downstream retainer, which is mounted to the inner surface of the valve body. A fourth conduit is provided between the inner and outer surfaces of the valve body on the downstream side of the valve body. Third conduits are formed between the valve body and the downstream retainer. A differential pressure sensor is attached to the outer surface of the valve body and to the second and fourth conduits.05-14-2009
20090126507Flow sensor - A flow sensor for use in a main duct is disclosed. The flow sensor includes a main body having a bypass duct having an inlet and an outlet, a pressure loss element fixedly attached to the main body, and a sensor element disposed in the bypass duct. When the flow sensor is operatively mounted in the main duct, the inlet and the outlet are oriented perpendicularly with respect to a main flow direction of a fluid mass flow in the main duct, the pressure loss element is disposed in the main duct, downstream of the inlet and upstream of the outlet, and the sensor element is operable to generate a measurement signal which is a representative of the fluid mass flow.05-21-2009
20100089173DEVICE FOR COLLECTING AND SEPARATING PARTICLES AND MICROORGANISMS PRESENT IN AMBIENT AIR - A device for collecting and separating particles and microorganisms present in ambient air, the device comprising suction means for sucking air into a removable centrifuging chamber (04-15-2010
20100180694Bernoulli wind prediction system - The invention is the use of a number of barometric pressure sensors roughly surrounding one or more target location or locations for which wind is being predicted. Based on a historical relationship between the observed pressures at the sensors and the observed wind at the target locations, the prediction of winds a few seconds into the future is possible. It is anticipated that these pressure observations used to train the prediction engine may be supplemented with some other local data such as area wind direction, temperature, and time of day. Further, in some applications the training of the prediction engine may be only prior to its use, while in other applications, the training may be updating the prediction engine while the instrument is operating. In the specification, a theoretical foundation for the pressure/wind relationship is explored for signal magnitudes.07-22-2010
20100224009Flow Metering - A new flowmeter which comprises a DP flowmeter and a volume meter in series or in hybrid integrated form. The combination of the readings from the two gives increased metering capabilities.09-09-2010
20100281997FLOW CONTROL ASSEMBLY - A flow control device for automatically controlling the flow of a fluid at a predetermined rate that is capable of taking measurements of the pressure of the fluid within the device while the device is functioning and that is capable of real-time adjustment of the flow rate is provided. Said device includes a casing having a casing outlet, a piston having a piston inlet and an edge, wherein said piston interfaces with the casing in a manner such that the edge is cooperable with the casing outlet to control the flow of fluid through the device. A biasing member, such as a spring, for biasing the casing with the piston is further included, as is a sensor, such as a pressure transducer, for measuring the pressure within the interior of the casing.11-11-2010
20110072911System and Method for Estimating EGR Mass Flow Rates - A system and method are provided for estimating an instantaneous EGR mass flow rate corresponding to a flow rate of exhaust gas through an exhaust gas recirculation (EGR) conduit fluidly coupled between an exhaust manifold and an intake manifold of an internal combustion engine with an EGR cooler positioned in-line with the EGR conduit. An operating position of the engine is monitored, and the instantaneous EGR mass flow rate is estimated at each of a plurality of fixed increments of the engine position based on EGR cooler outlet temperature, intake manifold pressure and a pressure differential across a flow restriction disposed in-line with the exhaust gas conduit between the EGR cooler and the intake manifold.03-31-2011
20110088484SYSTEM, METHOD, AND COMPUTER READABLE MEDIUM FOR CALCULATING WELL FLOW RATES PRODUCED WITH ELECTRICAL SUBMERSIBLE PUMPS - A system, method, and computer readable medium for calculating well flow rates produced with electrical submersible pumps using measured voltage, current, frequency and pressure data. An efficiency to flow rate ratio is calculated from the voltage, current, and pressure data. The efficiency to flow rate ratio is used to obtain a non-dimensional flow rate. The flow rate through the electrical submersible pump is calculated from the non-dimensional flow rate.04-21-2011
20110094310FILTER WITH MEMORY, COMMUNICATION AND PRESSURE SENSOR - The present invention describes a system and method for accurately measuring the pressure within a filter housing. A pressure sensor and a communications device are coupled so as to be able to measure and transmit the pressure within the filter housing while in use. This system can comprise a single component, integrating both the communication device and the pressure sensor. Alternatively, the system can comprise separate sensor and transmitter components, in communication with one another. In yet another embodiment, a storage element can be added to the system, thereby allowing the device to store a set of pressure values. The use of this device is beneficial to many applications. For example, the ability to read pressure values in situ allows integrity tests to be performed without additional equipment. In addition, integrity testing for individual filters within multi-filter configurations is possible.04-28-2011
20110107848METHOD OF CHARACTERIZING THE SELF-HEALING PROPERTIES OF A SET CEMENT BASED MATERIAL IN CONTACT WITH HYDROCARBONS - Methods of characterizing the self-healing properties of a set cement based material in contact with hydrocarbons in an oil- and/or gas-well are described. The methods comprise: providing a test cell (05-12-2011
20110138929Kinetic Flow Meter - A fluid flow rate and density measuring apparatus is disclosed. The apparatus includes a section of cylindrical conduit, a flow sensor housing for allowing fluid to pass through the open ends of the sensor housing as fluid flows through the conduit, and an elongated cylindrically symmetric structure located within the housing with its longitudinal axis aligned along that of the housing thereby forcing fluid through the annular gap between the exterior of the elongated cylindrically symmetric structure and the interior wall of the sensor housing. The apparatus includes a one-piece construction that includes the housing and the cylindrically symmetric structure. The cylindrically symmetric structure has a length-to-diameter ratio of at least 3:1 and reduces a cross-section area of the conduit to between 20% and 50% of an open inlet area of the conduit.06-16-2011
20110146415PRESSURE GUIDING TUBE BLOCKAGE DIAGNOSING DEVICE AND BLOCKAGE DIAGNOSING METHOD - A differential pressure transmitting device detects, through two pressure guiding tubes, a differential pressure that is generated when that which is to be measured, such as a liquid, a slurry, or a gas, that has fluctuation in the pressure thereof, passes through a differential pressure generating mechanism. A pressure guiding tube blockage diagnosing device comprises: a rising/falling frequency detecting portion for segmenting the differential pressure values detected by the differential pressure transmitting device into a plurality of intervals, and for detecting, for each interval, the rising/falling frequency of the fluctuation of the differential pressure; and an evaluating portion for comparing the rising/falling frequency of the fluctuation to a specific threshold value to evaluate the state of blockage of the pressure guiding tubes.06-23-2011
20110209560SUBSTRATE PROCESSING METHOD, STORAGE MEDIUM STORING PROGRAM FOR EXECUTING THE SAME, SUBSTRATE PROCESSING APPARATUS, AND FAULT DETECTION METHOD FOR DIFFERENTIAL PRESSURE FLOWMETER - There is provided a substrate processing method of supplying a processing solution to a substrate through a supply nozzle connected with a supply path via a differential pressure flowmeter provided on the supply path for supplying the processing solution and performing a process on the substrate by the processing solution. The substrate processing method includes measuring a pressure value in the supply path by a pressure measurement unit included in the differential pressure flowmeter when the processing solution is not supplied to the substrate; determining whether the pressure measurement unit is operated normally by comparing the pressure value measured in the measuring process with a predetermined pressure value; and supplying the processing solution to a substrate if it is determined that the pressure measurement unit is operated normally in the determining process.09-01-2011
20110259119TWO-PHASE FLOW METER - An assembly including conduit for conveying a flowable substance having a gas phase and a liquid phase, and a cone-shaped displacement member including an upstream end and a downstream end. A first flow measurement tap communicates with an area at the upstream end, a second flow measurement tap communicates with an area at the downstream end and a third flow measurement tap communicates with an area downstream of the displacement member. A device determines a first differential pressure value based on a flow measurement taken from any two of the first, second and third flow measurement taps and a second differential pressure value based on a flow measurement taken at one different tap.10-27-2011
20110259120MULTIPHASE FLOWMETER - A measuring device (10-27-2011
20120031200DEVICE AND METHOD FOR CONTINUOUSLY MEASURING HORIZONTAL FLUX OF DUSTFALL IN ATMOSPHERE - A continuous atmospheric horizontal dustfall flux measurement apparatus includes: a dust sampling port that includes a ceiling plate, a side wall, and four or more partition plates; a suction pipe; a continuous dust amount measurement device that continuously measures a dust amount per unit time; a blower or a compressor; an exhaust port, wherein the side wall is a plate that has a vertical center axis and has a side surface with a substantially circular or polygonal truncated cone shape widened upward, and wherein the side wall includes a suction port which is formed at the lower end thereof so as to be connected to the suction pipe and an external air inlet which has four or more openings disposed at the same interval in the circumferential direction of the side wall at a constant height near the upper end thereof.02-09-2012
20120036943Method for Manufacturing or Testing Metered-dose-ejection Devices and Testing Apparatus Therefore - For testing metered-dose-ejection devices, whether the ejected dose accords with a rated dose, the device (02-16-2012
20120055265PRESSURE DIFFERENCE FLOWMETER - A flowmeter device for measuring a flow rate of a fluid includes a conduit for the fluid flow. The conduit is characterized by a cross-sectional area and includes at least one section within which the cross-sectional area is different from the cross-sectional area of at least one other section of the conduit. The device also includes a reference tube separated from the conduit by a wall and at least one opening in the wall between the section and the reference tube. The device includes a flexible diaphragm forming a space between the diaphragm and a region of the wall at the section of the conduit, and which includes the opening, to inhibit flow of the fluid between the conduit and the reference tube. The diaphragm is deformable so as to allow measuring a parameter associated with the deformation of the diaphragm in response to a difference between fluid pressure in section and fluid pressure in the reference tube in fluid pressure between a fluid flowing through the section of the conduit and a fluid contained in the reference tube.03-08-2012
20120060625RISER ANNULUS FLOW METER AND METHOD - A mudline riser annulus flow meter includes a liner configured to be attached to a riser to cover a hole; a cover configured to be attached to the riser to cover the liner such that a cavity is formed by the liner and the cover; a sensor rod configured to be attached to the liner and to extend inside cavity, the sensor rod having a bore; a magnet assembly configured to be fixedly attached to the sensor rod; and a waveguide tube attached to the cover. The bore of the sensor rode is configured to receive the waveguide tube.03-15-2012
20120118075STATIC PORT APPARATUS - A static port apparatus for an aircraft having a static plate having inner and outer surfaces for fixture on the aircraft. The static plate including a first set of a plurality of port apertures and at least a second set of a plurality of port apertures. Each port aperture of the second set of port apertures is coaxially positioned with respect to each port aperture of the first set of port apertures.05-17-2012
20120144931PRESSURE-MEASURING PROBE - The invention relates to a pressure-measuring probe (06-14-2012
20120174685PRESSURE SENSOR FOR USE IN FUEL CELL SYSTEMS - A pressure sensor for measuring a pressure of a fluid in fluid flow path of a fuel cell system is disclosed. The pressure sensor includes a housing provided with a communication path formed between the fluid flow path and an interior of the housing, the communication path having a hydrophobic feature to militate against a formation and an accumulation of an undesired material within the pressure sensor.07-12-2012
20120198943Sensor Structure - A sensor structure is provided so that a dynamic pressure effect caused by airflow is avoided as much as possible even when a mass airflow measurement device is integrated with a pressure measurement device, thereby preventing contaminated substances, water droplets, or the like from arriving at a pressure measurement part. In the sensor structure, the mass airflow measurement device is inserted into a sensor insertion port provided in an intake air tube component including an intake air tube and is fixed to the intake air tube, and a pressure measurement device is mounted in a housing structural component of the mass airflow measurement device for measuring the pressure. The pressure measurement device and the inside of the intake air tube are connected by a pressure intake port provided in the housing structural component.08-09-2012
20120216628Method and Apparatus for Differential Pressure Measurement - A system and method for determining pressure differences of a fluid flowing through a differential pressure conduit positioned in a wellbore. The system comprises a first pressure measurement circuit positioned at a first pressure measuring station and including a first pressure sensor to generate a first pressure measurement signal indicative of the pressure measured by the first pressure sensor at a first signal point, and a second pressure measurement circuit positioned at a second pressure measuring station and including a second pressure sensor to generate a second pressure measurement signal indicative of the pressure measured by the second pressure sensor at a second signal point. The calculation of the pressure differential between the first and second pressure measuring stations is based on the first and second pressure measurement signals taken or read from the first and second signal points, wherein the first and third second points are symmetrical.08-30-2012
20120285261METHOD AND ASSEMBLY FOR HIGH ANGLE OF ATTACK PROCESS PARAMETER SENSORS - A method and an assembly for sensing a process parameter are provided. The sensing assembly includes a base and a sensor assembly. The sensor assembly includes a sensing element, a first flow channel, and a second flow channel. The first flow channel includes a converging segment, a straightening segment, and a turning segment wherein the turning segment includes a turn radius configured to separate particles from a flow entering the turning segment and the second flow channel is configured to generate a low pressure area downstream of the sensing element. The sensing assembly also includes an extension member extending between the base and the sensor assembly.11-15-2012
20120285262SYSTEM AND METHOD FOR AIRFLOW SENSING AND MONITORING USING MANOMETER WITH SPECIAL READOUT SCALE - A system and method for measuring the airflow in an air handling unit, includes placing two sensor tubes having apertures along the thereof at specific locations within the air handling unit that, when attached to a manometer, measuring the differential pressure loss across the two locations and, by means of a special readout scale, providing the airflow through the air handling unit.11-15-2012
20120304781METHOD AND APPARATUS FOR IN SITU TESTING OF GAS FLOW CONTROLLERS - Methods and apparatus utilize a rate of drop in pressure upstream of a gas flow controller (GFC) to accurately measure a rate of flow through the GFC. Measurement of the gas flow through the many gas flow controllers in production use today is enabled, without requiring any special or sophisticated pressure regulators or other special components. Various provisions ensure that none of the changes in pressure that occur during or after the measurement perturb the constant flow of gas through the GFC under test. A pressure regulator is coupled to a gas source. The GFC is positioned downstream of the pressure regulator. A pressure transducer is measuring pressure in a volume between the pressure regulator and the GFC, wherein means are provided for increasing the pressure in the volume.12-06-2012
20120325015AIR PRESSURE DROP DETECTING DEVICE FOR COOLING FAN - An air pressure drop detecting device for detecting air flow volume of a cooling fan includes a first pressure sensor, a second pressure sensor, and a display unit. The cooling fan has an air inlet and an air outlet opposite to the air inlet. The first pressure sensor is positioned in the air inlet and detects a plurality of first pressure values. The second pressure sensor is positioned in the air outlet and detects a plurality of second pressure values. The display unit is connected to the first pressure sensor and the second pressure sensor to display the first pressure values and the second pressure values, and a position of the cooling fan in the computer case is determined by the pressure difference between the first pressure values and the second pressure values.12-27-2012
20130008263FLOWRATE SENSOR AND FLOWRATE DETECTION DEVICE - Disclosed is a flowrate sensor having a flowrate detection means built into a surface mounted package. The flowrate sensor includes a fluid flow path (01-10-2013
20130014593PRESSURE GUIDING TUBE BLOCKAGE DETECTING SYSTEM AND DETECTING METHODAANM Tabaru; TetsuyaAACI TokyoAACO JPAAGP Tabaru; Tetsuya Tokyo JPAANM Aota; NaoyukiAACI TokyoAACO JPAAGP Aota; Naoyuki Tokyo JP - A vessel is attached to a pressure guiding tube near the point of connection between a process pipe and a pressure transmitter. Doing so increases the rate of deformation, relative to a change in pressure, of a fluid when the fluid is a compressible fluid, making the change in the pressure fluctuation more easily detected, thereby increasing the sensitivity of detection of blockages in the pressure guiding tube. If the fluid is a non-compressible fluid, then a part that has a diaphragm (a pressure bearing surface that deforms easily through pressure) is connected instead of the vessel.01-17-2013
20130036833GAS FLOW-RATE VERIFICATION SYSTEM AND GAS FLOW-RATE VERIFICATION UNIT - A gas flow-rate verification system includes: process gas lines each being arranged to supply gas from a process gas supply source to a process chamber through a first line cutoff valve, a second line a cutoff valve, and flow control device; and a shared gas line connected in a branch form to the process gas lines to discharge gas from a shared gas supply source through the second line cutoff valve and the flow control device. The shared gas line includes a shared cutoff valve, a measuring tank, a first pressure sensor, and a pressure regulating valve. When the first line cutoff valve and the shared cutoff valve are closed, the first pressure sensor measures a pressure drop of gas in the tank to verify a flow rate of the flow control device. The pressure regulating valve feedback-controls secondary side pressure of the pressure regulating valve.02-14-2013
20130074608BOILER STEAM AMOUNT MEASURING METHOD, BOILER LOAD ANALYZING METHOD, BOILER STEAM AMOUNT MEASURING APPARATUS, AND BOILER LOAD ANALYZING APPARATUS - A boiler steam amount measuring method for continuously measuring a temporal change in an amount of steam from a steam boiler, includes: first measuring a differential pressure between a pressure at a first detection position that is a predetermined position in a can body of the steam boiler or a steam outflow path, and a pressure at a second detection position in the steam outflow path separated from the first detection position toward a downstream side; first calculating a pressure loss coefficient based on the differential pressure measured by flowing a predetermined flow rate of steam or fluid instead of steam into the steam outflow path, and the predetermined flow rate; and second calculating continuously the amount of steam based on the differential pressure measured in the first measuring and the pressure loss coefficient calculated in the first calculating, and outputting the calculated amount of steam as a measurement value.03-28-2013
20130205914SENSOR ARRANGEMENT AND METHOD FOR MONITORING AN INFUSION PROCESS - A sensor arrangement for monitoring an infusion process in a flow channel and a method for monitoring an infusion process in a flow channel are described. The sensor arrangement includes a pressure sensor with a sensor interface and a plug. The plug has an inner cavity with an inlet and an outlet. The inlet of the plug is in flow connection with the flow channel and the outlet of the plug is located at the sensor interface.08-15-2013
20130220026FLOW MEASUREMENT UNIT - A flow measurement unit for measuring a rate of airflow for a ventilation system. The flow measurement unit includes a flow measurement device installed in a housing. A first and a second pressure gauge are provided anteriorly and posteriorly, respectively, to the flow measurement device. The first and the second pressure gauge are configured to provide a first pressure reading, corresponding to the first pressure, and a second pressure reading, corresponding to the second pressure of airflow. Further, the flow measurement unit includes a fan to adjust airflow, such that the second pressure approaches the first pressure of airflow.08-29-2013
20130220027Real Time Measurements of Fluid Volume and Flow Rate Using Two Pressure Transducers - To provide accurate determinations of volumetric flow rate and thus of total liquid volume transported over a given time period, two pressure transducers are disposed a predetermined distance apart along a conduit. Precise pressure measurement readings are generated from which volumetric flow rate can be derived with accuracy. Integration of the volumetric flow rate over time yields an improved measure of the total liquid volume that has flowed through the conduit during the respective temporal interval. The two pressure transducers are disposed along the conduit a predetermined distance apart with no obstruction or restriction in the conduit between the transducers. A controller can be used to determine the volumetric flow rate using the Hagen-Poiseuille Equation.08-29-2013
20130283931Fluidic Assay Cartridge With Controlled Passive Flow - A fluidic cartridge (10-31-2013
20130298696FLOW MEASUREMENT - The volumetric rate of flow out of a flow line (11-14-2013
20130340535MEASURING DEVICE OF AIR FLOW RATE FOR AIR CONDITIONING SYSTEM - A measuring device of air flow rate for an air conditioning system which accurately measures the flow rate of cooling air blowing out of the openings of some rectangular units and in which the locations of the openings can be changed according to the location of equipment. The measuring system includes a plurality of panels constituting a floor surface, ceiling surface, or wall surface, a rectangular vent unit with openings located in place of a given one of the panels, a space with a given height formed by pillars on the back sides of the rectangular vent unit and the panels, and an air conditioner for supplying cooking air to the space. The cooling air from the space passes through the openings. A measuring means for measuring the flow rate of cooling air passing through the openings is located in a rib which forms the openings.12-26-2013
20140069208SELF-DIAGNOSING DIFFERENTIAL PRESSURE FLOW METER - An aspect provides a method of metering flow through a fluid conduit having an obstruction therein, including: placing an obstruction body within the conduit; generating at least two differential pressure measurement signals using at least three different pressure ports, said at least three different pressure ports comprising: an upstream pressure port; a downstream pressure port; and an auxiliary pressure port; wherein at least one of the upstream pressure port, the downstream pressure port, and the auxiliary pressure port is positioned at an angle between 0 and 90 degrees with respect to a conduit wall; establishing a baseline relationship between the at least two differential pressure measurement signals; and determining if the baseline relationship between the at least two differential pressure measurement signals differs by a predetermined amount. Other aspects are described and claimed.03-13-2014
20140102214OPERATION METHOD OF MULTI-FLOW PASSAGE DEVICE, AND MULTI-FLOW PASSAGE DEVICE - In an operation method of a multi-flow passage device, and a multi-flow passage of the present invention, blockage detection of a reaction flow passage can be readily performed and cleaning of the reaction passage can be easily performed.04-17-2014
20140216168Flow Meter and Method for Using Same - A flow meter is disclosed which comprises a flow pipe for measuring consumption of a fluid passing there-through irrespective of flow direction. The flow pipe comprises a central segment and two edge segments, each located at a different side of the central segment so that the three segments form a continuous passage for the passing fluid. The flow meter is configured to enable flow of the fluid via an aperture to/from the central segment from/to a respective edge segment, while each of the edge segments has an inner diameter greater than that of the respective aperture enabling the flow from/to that edge segment to/from the central segment. The flow meter further comprises three pressure meters, each configured to enable measuring static pressure of the fluid flowing through a respective segment, thereby enabling to determine forward and backward fluid flows through the flow pipe.08-07-2014
20140260670PROCESS VARIABLE MEASUREMENT USING PRIMARY ELEMENT CONNECTION PLATFORM - An apparatus for measuring a process variable of a process fluid based upon a process variable sensor measurement, includes an elongate spool that provides a spool conduit therethrough adapted to be coupled in line with process piping to receive a flow of process fluid. A meter body is carried in the elongate spool and receives the spool conduit therethrough. The meter body has a primary element opening which extends from the spool conduit to outside of the meter body. A carrier is configured to removably mount to the meter body and includes a primary element in the spool conduit through the primary element opening. A process variable transmitter is coupled to the primary element and is configured to measure the process variable of process fluid. The meter body is preferably configured to receive different types of primary elements carried on the carrier.09-18-2014
20150013473METHOD AND DEVICE FOR CONTROLLING THE DYNAMIC CONFINEMENT OF AN ENCLOSURE - The invention relates to a method and device for monitoring the confinement of an enclosure including walls delimiting an interior volume and an external environment, according to which a differential pressure (ΔP) is maintained between the interior volume and the external environment. According to the invention, the enclosure includes a port in one of the walls thereof establishing a fluid communication between the interior volume and the external environment, the port is traversed by a gas stream having a speed (V) at least equal to a reference speed Vréf, under the effect of the differential pressure (ΔP). Method according to which the following steps are performed, measuring the speed (V) of the gas stream at predetermined time intervals or continuously, and comparing the speed (V) measurement with reference speed Vréférence, and when the speed (V) measurement is less than reference speed Vréférence, transmitting at least one alarm signal.01-15-2015
20150082914Filter Simulation System - A filter simulation system that includes a simulation filter (03-26-2015
20150096386MEASURING DEVICE FOR DETERMINING THE VOLUMETRIC FLOW RATE OF GLUE IN A GLUING DEVICE - The invention relates to a measuring apparatus (04-09-2015
20150122052METHODS AND DEVICES FOR DETERMINATION OF FLOW RESERVOIR VOLUME - A novel enhanced flow metering device is adapted for disposing into a flow material reservoir a known volume of flow material whereby software used in conjunction with a pressure sensor may be calibrated. Additionally, by measuring the known amount of flow material returning to the flow material reservoir, checks are quickly made to ensure the pressure sensor is behaving as expected.05-07-2015
20150369646Flowmeter - In a flow meter with a displacement meter (12-24-2015
20160025532FLOW RATE TESTING - Apparatus and methods related to flow rate testing are described. For example, some embodiments may contain a hydraulic power unit, a flow meter, a pressure gauge, an accelerometer, a reservoir containing testing fluid, two fitting connections, and hoses for interconnecting the components in a closed loop, for testing flow rate through a tube and pinpointing the obstruction location inside the tube.01-28-2016
20160067535SYSTEM AND METHOD FOR TESTING A FIRE SUPPRESSION SYSTEM - At least one embodiment comprises a testing system for a fire suppression system which can comprise at least one fluid conduit having a first end and a second end with an isolating valve and at least one pressure regulating valve coupled to the conduit. A tap is coupled to the fluid conduit, and is positioned between the first end and the second end and be for selectively allowing fluid to flow out from the fluid conduit to allow fluid to flow past the pressure regulating valve. The process for testing a fire suppression system can comprise the following steps: connecting at least one first valve to a fluid conduit, disconnecting sprinkler heads from the fluid conduit, flowing water through the pressure regulating valve determining the flow rate through the pressure regulating valve, and determining the pressure downstream of the pressure regulating valve, stopping testing, and then reporting the results.03-10-2016
20160084687FLOW METERING - A new DP meter diagnostic system for wet gas flow builds on existing diagnostic techniques. Based on new diagnostic parameters and calculations derived from them, blocked pressure ports or impulse lines can be identified or wet gas established as the cause of an abnormal reading. Further diagnostic techniques can take advantage of the new diagnostic parameters to predict a liquid loading parameter, gas flow rate and fluid flow rate for wet gas flow.03-24-2016
20160091266MOBILE HYDRO GEOTHERMAL TESTING SYSTEMS AND METHODS - A fluid flushing and pressurization apparatus for use with geothermal systems, capable of delivering a reversible high-velocity flow of fluid through a system of buried PE pipe without introducing an overpressure condition or water hammer. The apparatus can be utilized with methods for installing, preparing, flushing, filling, testing, and certifying geothermal heating and cooling systems. A portable pumping and testing apparatus can include a high-volume pump, a high-pressure pump, a flow meter, and pressure sensors in wired or wireless communication with a processor or logic controller such that continuous or periodic monitoring of the system can be recorded. The system can be programmed to operate automatically under computer control such that reversal of the flow through the geothermal system does not shock or damage the equipment or buried piping.03-31-2016
20160146647A GAS FLOW MEASURING SYSTEM FOR ELECTRIC HOUSEHOLD APPLIANCES - The present invention relates to a gas flow measuring system for electric household appliances—more particularly, for cooking equipments—that is based on pressure reading at specific points in the tubing in order to provide the user with data such as gas outflow and/or consumption (instantaneous and overall), providing for a more efficient, controlled and safer use of the cooking equipment. Said system comprises: at least one pressure sensor cooperating with main tubing 05-26-2016
20160153815Relative and Absolute Pressure Sensor Combined on Chip06-02-2016
20160169725SEMI-EMPIRICAL MASS FLOW MODEL AND CALIBRATION METHOD FOR UNDEVELOPED FLOW REGIONS IN AN AIR SEEDER06-16-2016

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