210results about "Mass flow measurement devices" patented technology

The invention provides a temperature compensation method and system of a mass flowmeter, and relates to the technical field of mass flowmeters.The method comprises the steps that a space temperature field and a strain field covering a whole measuring pipe body are obtained, and a distributed heat-force coupling state is constructed; configuring a primary disturbance parameter set, projecting the primary disturbance parameter set to a natural vibration mode space, and constructing an equivalent temperature disturbance quantity; configuring the excitation frequency of dual-frequency vibration excitation; inputting a double-frequency response result into a temperature-flow decoupling model, and inversely constructing a temperature compensation factor; calculating an original estimated value of the flow, constructing a temperature compensation amount, fusing the original estimated value of the flow, and outputting a measurement result. The technical problem that in the prior art, due to the fact that single-point temperature measurement cannot accurately decouple the temperature effect under the complex working condition, measurement of the mass flow meter is inaccurate is solved, the space temperature field and the strain field of the whole measurement pipe body are obtained, self-adaptive compensation is conducted on sensitivity drifting of the measurement pipe, and the measurement accuracy is improved. And the measurement precision of the mass flow meter is improved.

The invention relates to a pole piece coating surface density detection method and a coating production system. The method comprises the following steps: acquiring the mass flow rate of slurry at a material inlet of a coating die head as a first mass flow rate; according to the first mass flow rate and a predetermined correlation relationship, calculating the mass flow rate of the slurry at the discharge port of the coating die head as a second mass flow rate; wherein the correlation relation is used for representing correlation between the first mass flow and the second mass flow; and calculating the average dry film surface density of the pole piece coated by the coating die head according to the production parameters of the coating die head and the second mass flow rate. According to the scheme provided by the invention, the surface density parameter can be more accurately calculated through the correlation of the mass flow in front of the feed port and the discharge port, and the measurement deviation caused by various influence factors in the production process is effectively reduced.

The invention provides an exhaust emission remote detection system in a kitchen waste treatment process, and relates to the technical field of data processing, and the method comprises a calculation module which is used for calculating an exhaust emission rate according to a correction parameter, a standard data frame, a chemical reaction conversion rate of a monitoring point A and a removal rate of an incinerator purification device of a monitoring point B; calculating pollutants of the monitoring point A and pollutants of the monitoring point B to generate a pollutant correction concentration matrix; and the early warning module is used for carrying out early warning according to the pollutant correction concentration matrix, the flow of the induced draft fan, the flow of the flue and a preset emission threshold value. Through the space correction coefficient, the concentration deviation caused in the waste gas transmission process is compensated in real time, and the data reliability is improved.

The invention provides a mass flow meter measurement compensation method and system combined with pipeline stress perception, and relates to the technical field of instrument correction. The method comprises the steps that an original stress data set is obtained; constructing a stress characteristic parameter set; constructing a sensor parameter set; based on the stress characteristic parameter set and the sensor parameter set, calculating the stress variation of the pipeline in the axial direction, the radial direction and the torsion direction to obtain a stress variation data set; utilizing the stress change data set and the sensor parameter set to establish a coupling model of the pipeline stress change to the vibration frequency and the phase signal of the sensing pipe, and calculating a corrected mass flow value; according to the comparison result of the corrected mass flow value and the calibration point in the long-term operation process, a parameter optimization algorithm is applied to conduct self-adaptive adjustment on the coupling coefficient, and coupling model optimization is achieved. The technical problem of measurement deviation caused by external stress, structural deformation and dynamic load in the prior art is solved.

To provide a structure for easily arranging a control board in a flow rate ratio control device.SOLUTION: The fluid control device includes a plurality of fluid control devices 2 in which a fluid sensor 22 and a fluid control valve 23 are provided in a flow passage block 21, and a control board 4 for controlling the plurality of fluid control devices 2, and the control board 4 is erected on an upper surface of the flow passage block 21 along an arrangement direction of the plurality of fluid control devices 2.SELECTED DRAWING: Figure 1

A system and method for early warning of solids pluggage in a gas-solid multi-phase flow through transport pipe. At least one doppler radar-based mass flow sensor measures reflections of signals from solid particles that are carried in a gas transport stream by the transport pipe from a solid particles feed source to a solid particles processing location. A controller detects conditions in the gas transport stream carrying the solid particles in the transport pipe that are representative of an early warning of pluggage of solid particles in the pipe as a function of information provided by the at least one doppler radar-based mass flow sensor.

The invention relates to the technical field of electric digital data processing, in particular to a filling flow detection method and system for a filling production line, and the method comprises the steps: obtaining filling flow data at each moment in the current filling process; and inputting the filling flow data at each moment in the current filling process into an improved machine learning model, outputting the liquid amount of the inner wall of the pipeline after the current filling is stopped, and if the liquid amount of the inner wall of the pipeline after the current filling is stopped is greater than a set threshold value, judging that the current filling is abnormal. The problem that existing model detection precision is not high is solved.

The invention belongs to the technical field of oil and gas measurement, and discloses an experimental method and device for obtaining a compression factor of high-sulfur-content natural gas, and the method comprises the following steps: mixing purified natural gas and hydrogen sulfide through a checking system according to gas component parameters of a high-sulfur-content natural gas site to obtain sulfur-containing natural gas; determining the molar mass, the mass flow rate and the volume flow rate of the sulfur-containing natural gas through a standard measurement system; according to the flow value and the pressure value of the purified natural gas measured by the checking system and the volume flow of the hydrogen sulfide, whether the mass flow of the sulfur-containing natural gas measured by the standard measurement system is accurate is determined; and if so, determining the compression factor of the sulfur-containing natural gas according to the gas molar mass, mass flow and volume flow of the sulfur-containing natural gas. The device can simulate working conditions of a high-sulfur-content field, configure gas components consistent with the field conditions and determine the compression factor of gas at a standard detection system, and is clear in overall measurement principle, simple in system and easy to maintain.

The utility model relates to the technical field of valve performance test, and discloses a pneumatic valve flow test system, which comprises a multi-path gas source supply unit comprising a gas source supply assembly, a main pipeline and a shunting assembly which are sequentially connected in series, and the shunting assembly distributes gas of the main pipeline to at least two parallel test branches, each test branch is provided with an independent branch pressure reducing valve; the multi-range flow testing unit comprises gas mass flow meters which are respectively arranged on the testing branches, and the measuring ranges of the gas mass flow meters are different; the multi-size interface pipeline unit comprises quick connectors which are respectively arranged at the tail ends of the test branches and are used for being connected with a valve to be tested, and the sizes of the quick connectors are different; the actuator is connected with the to-be-tested valve and used for receiving the control signal and adjusting the opening degree of the valve; and the data acquisition and processing unit is electrically connected with the gas mass flow meter and the actuator. The pneumatic valve flow test system meets the rapid detection requirements of valves of different specifications.

The invention relates to the technical field of fuel nozzle performance testing, in particular to an integrated high-precision fuel flow testing method and detection method.The testing method comprises the steps that a spraying test bed or a nozzle test bed is correspondingly selected based on whether a to-be-tested workpiece tests the spraying angle or not; after the integrated high-precision fuel oil flow testing device is in a reset state, a corresponding motor rotating speed is input to a digital control system based on the calibrated flow of the workpiece to be tested, a plunger pump of a high-pressure oil supply system is started, and oil liquid in an oil tank system is pumped to a corresponding spray test bed or nozzle test bed to run; the actual pressure difference of the workpiece to be measured is collected and transmitted to the digital control system, the actual pressure difference and the target pressure difference are compared, and the actual pressure difference is adjusted; when the preliminarily obtained actual oil flow is larger than a detection threshold value, the actual oil flow corresponding to the current flowmeter is defined as corresponding detection data; and when the preliminarily obtained actual oil flow is smaller than or equal to the detection threshold value, a weighing method is adopted for flow detection.

The invention belongs to the technical field of online detection of aerosol-amine collaborative escape heterogeneous reaction, and particularly relates to an online detection system and method for aerosol-amine collaborative escape heterogeneous reaction. The system comprises an aerosol particle generation device and a double-flow-tube reaction device which are communicated with each other, and further comprises an ozone generation and detection device which is communicated with the double-flow-tube reaction device, the double-flow-tube reaction device comprises a first flow tube reactor, an ozone decomposition agent container and a second flow tube reactor which are sequentially connected, and air outlets of the aerosol particle generation device and the ozone generation and detection device are respectively communicated with an air inlet of the first flow tube reactor. The method can be synchronously realized by combining the tandem type double-flow-tube reaction device with APPI-HRMS, the distribution characteristics of the SOZ particle multiphase reaction product can be obtained online in real time, and the effective absorption coefficient can be accurately measured by quantifying the SOZ multiphase reaction rate.

The invention relates to an oil-paper composite insulation PDC (Polycrystalline Diamond Compact) measuring system and method in an insulating oil flowing state, and a tested sample assembly is arranged between an upper electrode cover and a lower electrode cover and comprises an oil gap gasket for providing an oil gap channel, oil impregnated paper and oil flow flowing through the oil gap channel; the PDC measuring circuit comprises a high-voltage electrode arranged on the upper electrode cover and a measuring electrode arranged on the lower electrode cover, a high-voltage direct-current power supply is connected to the high-voltage electrode after being connected with a high-voltage relay and a current-limiting resistor in series, and the measuring electrode is grounded after being connected with an over-current protection module and a high-resistance meter in series; the insulating oil flow speed control oil way comprises an oil storage tank, and insulating oil in the oil storage tank is driven by the oil pump to flow into the upper electrode cover and the lower electrode cover through the pressure buffering tank, flows through the oil gap channel to form oil flow and then returns to the oil storage tank. By simulating conditions of different flow rates of the insulating oil, measurement of the oil-paper composite insulation PDC in the flowing state of the insulating oil is realized, and related information closer to the insulation state of a large oil-immersed power transformer in the actual working condition is obtained.

A component having a bus termination. A component (3, 4, 7-9, 13, 27) for a combustion appliance, such as an appliance having a boiler, the component (3, 4, 7-9, 13, 27) comprising an outer surface and a tangible electrical interface (30, 32, 35, 36) configured to be electrically connected by a user such that the tangible electrical interface (30, 32, 35, 36) is in a short circuit condition, the tangible electrical interface (30, 32, 35, 36) is electrically disconnected by the user such that the tangible electrical interface (30, 32, 35, 36) is in an open condition; wherein the tangible electrical interface (30, 32, 35, 36) is arranged on an outer surface of the component (3, 4, 7-9, 13, 27) such that the tangible electrical interface (30, 32, 35, 36) is accessible to the user; the components (3, 4, 7-9, 13, 27) comprise a first and a second bus wire.

Component with bus termination. A component (3, 4, 7-9, 13, 27) for a combustion appliance such as an appliance having a boiler, the component (3, 4, 7-9, 13, 27) comprising an outer surface and a tangible, electric interface (30, 32, 35, 36) configured to be electrically connected by a user such that the tangible, electric interface (30, 32, 35, 36) is in a short circuit condition and configured to be electrically disconnected by the user such that the tangible, electric interface (30, 32, 35, 36) is open circuit condition; wherein the tangible, electric interface (30, 32, 35, 36) is arranged on the outer surface of the component (3, 4, 7-9, 13, 27) such that the tangible, electric interface (30, 32, 35, 36) is accessible to the user; the component (3, 4, 7-9, 13, 27) comprising first and second bus wires.

A system for determining a gas flow in a gas delivery arrangement includes a data processing device, a flow meter detecting a flow of a gas mixture of a gas compound and an impurity gas compound, wherein the flow meter provides gas mixture flow information to the data processing device, a first compound concentration analyzer calibrated to a first impurity gas compound and detecting a concentration of the first impurity gas compound in the gas mixture, wherein the first compound concentration analyzer provides a first impurity concentration information based on the detected concentration to the data processing device, wherein the data processing device determines a target gas compound flow based on the gas mixture flow information received from the flow meter and the first impurity concentration information received from the first compound concentration analyzer.

The utility model discloses a multi-phase flowmeter for oil gas production virtual metering, which comprises a gas-liquid separation cylinder, a filter box, a gas phase flowmeter and a mass flowmeter, the upper side of the filter box is in sliding connection with a cover plate, the upper side of the cover plate is fixedly connected with a liquid inlet pipe, a filter screen is arranged outside an inclined plate, a driving motor is arranged outside the filter box, and the liquid inlet pipe is fixedly connected with the liquid inlet pipe. A dredging mechanism is installed in the filter box, an oil pump is fixedly connected to the interior of the filter box, an oil pipe is fixedly connected to the exterior of the oil pump, exhaust pipelines are fixedly connected to the two sides of the gas phase flow meter, and liquid drainage pipelines are fixedly connected to the two sides of the mass flow meter. According to the device, pre-filtering preparation work can be conducted before oil-gas separation is conducted on petroleum, it can be guaranteed that the pre-filtering preparation work of the petroleum can be conducted smoothly, gas-liquid separation is conducted through gravity, analysis and calculation are conducted through cooperation of the gas phase flow meter and the mass flow meter, and then the oil content, the water content and the gas content of the petroleum produced by a mine can be analyzed; and the operation is convenient.

The electrode slurry coating system of the present invention comprises: a supply duct as a transport path for transporting an electrode slurry from a supply tank to a coating mold; a mass flow meter installed on a path of the supply pipe for measuring a flow rate of the electrode slurry conveyed through the supply pipe and a density of the electrode slurry; and a control unit for calculating a load amount prediction value of the electrode slurry based on measurement information measured by the mass flow meter and for controlling the calculated load amount prediction value of the electrode slurry to satisfy the load amount management range.

In accordance with some embodiments herein, an apparatus is provided. The apparatus includes a conduit, a first electrode, a second electrode, a power source, a valve, and a controller. The conduit is configured to conduct a mixture along a flow path. The first electrode is placed proximal the flow path defined by the conduit. The second electrode is placed proximal the flow path defined by the conduit. The power source is configured to apply a voltage across the first electrode and the second electrode. The valve is coupled to the conduit and configured to control flow of the mixture through the flow path defined by the conduit. The controller is configured to determine a first capacitance of a first capacitor established by the first electrode, the second electrode, and the mixture flowing along the flow path. The controller controls the valve based upon the first capacitance.

A method for analysing a device for spraying a pharmaceutical fluid product, comprising the following steps: - providing a spray head (1) of a device for spraying a pharmaceutical fluid product, the spray head (1) comprising a spray orifice (2), - providing a receiving surface (10) comprising a plurality of sensors (20), - passing a flow of compressed gas (F) through the spray orifice (2) of the spray head (1), - sending the flow of compressed gas (F) onto the receiving surface (10), - visualizing the impact zone of the flow of compressed gas (F) on the receiving surface (10) by means of the sensors (20), and - analysing the visualization of the impact zone to determine whether the impact zone is compliant or non-compliant with predetermined specifications, the receiving surface (10) being at least partially spherical in shape.

The electrode slurry coating system according to the present invention includes a supply pipe that serves as a transfer path for electrode slurry from a supply tank to a coating die, a mass flow meter installed on the route of the supply pipe to measure the flow rate and density of the electrode slurry transferred through the supply pipe, and a control unit that calculates a predicted loading amount of electrode slurry based on measurement information measured by the mass flow meter and controls the calculated predicted loading amount of electrode slurry to satisfy a loading amount management range.

Embodiments of the present invention provide an in-line flow shunt test device and method, which relate to the technical field of fluid detection. The in-line flow shunt test device includes a flowmeter and a shunt meter. The flowmeter includes a pipe body, an orifice plate, and a sensor. The orifice plate is installed at the inlet of the pipe body, and the sensor is installed inside the pipe body. The shunt meter is of a cylindrical structure and is installed inside the pipe body. The central axis of the shunt meter is collinear with the central axis of the pipe body, and the sensor is inserted into the inside of the shunt meter. The in-line flow shunt test device replaces the test by assembling the shunt meter to the flowmeter, and at the same time, based on the shunt principle, realizes in-line testing of low-pressure large flow, and the testing is convenient, reliable, and accurate.

To provide a device configured to discharge an assembly material onto an electronic substrate, a system for detecting the static volume in a material cartridge, and a method for detecting the static volume in the material cartridge.SOLUTION: A system to detect static volume in a material cartridge includes a mass flow meter to measure a volume of air delivered to the material cartridge. A controller is configured to specify a volume of assembly material in the material cartridge upon determining the volume of air in the material cartridge. A method to detect static volume in the material cartridge includes measuring a volume of air delivered to the material cartridge.SELECTED DRAWING: Figure 5

A system to detect static volume in the material cartridge includes a mass flow meter to measure a volume of air delivered to the material cartridge. A controller is configured to determine a volume of assembly material in the material cartridge upon determining the volume of air in the material cartridge. A method to detect static volume in the material cartridge includes measuring a volume of air delivered to a material cartridge.

An apparatus is configured to dispense assembly material on an electronic substrate. The apparatus includes a frame and a unit coupled to the frame. The unit includes a material cartridge coupled to a pressure regulator configured to deliver pressurized air to the material cartridge at a desired pressure. The material cartridge is configured to contain assembly material. The apparatus further includes a substrate support configured to support the electronic substrate and a controller configured to control the apparatus including the unit. A system to detect static volume in the material cartridge includes a mass flow meter to measure a volume of air delivered to the material cartridge. The controller is configured to determine a volume of assembly material in the material cartridge upon determining the volume of air in the material cartridge.

The invention discloses an online treatment system and method for insulating gas of electrical equipment. The system comprises a mass flow detection device, a first purification device and a gas driving device which are arranged on a main treatment loop, the gas detection device is arranged on the detection bypass; and a control device. The mass flow detection device is used for detecting the accumulative recovered gas mass and the accumulative recharged gas mass; the first purification device is used for purifying to-be-treated gas; the gas driving device is used for driving the gas to pass through the purification device and recharge the electrical equipment; the gas detection device is used for detecting gas in real time; and the control device obtains the gas quality according to the real-time detection data, controls the gas driving device to operate, and stops recharging when the quality difference value of the recycled gas and the recharged gas is smaller than or equal to a preset threshold value. The system can further comprise a frequency conversion adjusting function, various connecting pipeline configurations, a vacuumizing device and the like, efficient online treatment of the insulating gas can be achieved, and the operation reliability of electrical equipment is improved.

There is provided an air sampling device for sampling air in a controlled environment comprising: a housing body having a top and an opening at the top of said housing body; a retaining assembly configured to retain a sampling device, said retaining assembly located at the top of said housing body; a plenum having a wall with a top end and a bottom end and a blower, said top end being coupled to the housing body such that said plenum is in flow communication with said opening; a mass flow meter in flow communication with said plenum and detecting a flow rate; the blower inside said plenum configured to draw air past the sampling device, through the opening of the housing body, through the plenum, and through the mass flow meter; and a processing device configured to receive the detected flow rate from said mass flow meter and to control the blower in response to the detected flow rate.

The application provides a pipeline stress-aware mass flowmeter measurement compensation method and system, relates to the technical field of instrument correction, and the method comprises the following steps: obtaining an original stress data set; constructing a stress characteristic parameter set; constructing a sensor parameter set; calculating stress change amounts of the pipeline in axial, radial and torsional directions based on the stress characteristic parameter set and the sensor parameter set, and obtaining a stress change data set; establishing a coupling model of pipeline stress change on sensor vibration frequency and phase signal by using the stress change data set and the sensor parameter set, and calculating a corrected mass flow value; and according to the comparison result of the corrected mass flow value and a calibration point in a long-term operation process, applying a parameter optimization algorithm to adaptively adjust the coupling coefficient, so that the coupling model is optimized. The technical problem of measurement deviation caused by external stress, structural deformation and dynamic load in the prior art is solved.

Systems and methods for quantified water intake estimation and closed loop management of ruminants are disclosed. An ingestible reticular bolus transmits temperature data. A water source sensor measures water temperature and an ambient module provides THI. A processor detects drinking events from temperature slopes and amplitudes, applies a non-linear heat exchange model parameterized by measured water and ambient conditions to estimate per event volume, and accumulates daily intake. Control signals are generated to cooling, water, or feeding actuators according to hydration status and THI. Optional fusion with bolus accelerometry and near muzzle gas sensing estimates methane emissions per animal. The system integrates feed sensors and reproduction analytics, supports portable gateways for pasture, and provides traceability.

The utility model provides a multi-flow-path automatic standard-passing calibration system of a gas analyzer, which comprises a sample gas collection module used for collecting sample gas; a plurality of standard gas cylinders, wherein each standard gas cylinder is filled with standard gas with different concentrations; the multi-channel switching valve comprises a plurality of gas inlet channels and a gas outlet channel, each gas inlet channel is provided with an on-off switch, the sample gas collection module is connected with one gas inlet channel on the multi-channel switching valve, and the plurality of standard gas cylinders are respectively connected with the plurality of gas inlet channels on the multi-channel switching valve in a one-to-one correspondence manner through standard gas pipelines; the gas outlet channel is connected with a gas inlet of the dehumidification module through a first gas outlet pipeline, and a gas outlet of the dehumidification module is connected with the gas analyzer through a second gas outlet pipeline; and the control unit is electrically connected with the multi-channel switching valve and is used for controlling on and off of each on-off switch. The problems of complicated operation, high labor cost and low calibration efficiency of a standard-passing calibration mode of the gas analyzer in the prior art are solved.

The present disclosure describes a method, a system, and a computer program product of performing a separation on a field flow fractionator. In an embodiment, the method, the system, and the computer program product include executing, by a computer system, a set of logical operations measuring a mass flow control valve position of a control valve connected to a mass flow controller coupled to a field flow fractionator and a pressure control valve position of a control valve connected to a pressure controller coupled to the field fold fractionator in an optimal stability state, storing, by the computer system, the valve positions to a data store as preset values, and executing, by the computer system, a set of logical operations retrieving the preset values from the data store and setting initial conditions for the controllers corresponding to the preset values, resulting in a switch mode of the field flow fractionator.