142results about "Testing/calibration for volume measurement" patented technology

A method for estimating a volume of a reservoir to be filled from a station for distributing a pressurized fluid including injecting a flow of pressurized fluid into the reservoir, determining a pressure variation in the reservoir, the pressure variation being determined with respect to an initial pressure, determining an amount of the fluid flow injected into the reservoir, and estimating the volume of the reservoir to be filled, on the basis of the amount of the fluid flow injected into the reservoir and on the basis of the pressure variation in the reservoir after the injection of the fluid flow. Wherein the volume of the reservoir to be filled is also estimated on the basis of an injection temperature, and on the basis of a temperature variation in the reservoir after the injection of the fluid flow.

A trace meter and a method for calibrating a dynamic ultra-micro pipetting device are provided, which relate to the technical field of dynamic pipetting precision calibration. The trace meter includes a measuring compartment, a temperature sensor, a pressure sensor and a controller. A top of the measuring compartment is open, the temperature sensor is provided at a bottom of the measuring compartment, the pressure sensor is provided below the measuring compartment, both the temperature sensor and the pressure sensor are electrically connected with the controller, the temperature sensor is configured to measure the temperature of liquid in the measuring compartment, and the pressure sensor is configured to measure the weight of liquid in the measuring compartment.

The invention discloses a shield deslagging volume dynamic detection method and a detection system thereof, and relates to the technical field of shield deslagging volume metering, the method comprises the following steps: arranging sound wave and vibration sensors, collecting sound vibration signals in a deslagging process, and calculating to obtain a first volume estimation value; collecting propelling attitude and conveyor rotating speed information, calculating an attitude correction coefficient and correcting the first estimated value to obtain a second estimated value; based on the dynamic image sequence at the deslagging window, extracting section and trajectory features to form a third volume estimation value; detecting the water content of the muck through a microwave sensor, calculating a water content correction coefficient, and compensating and correcting an image estimation result to obtain a fourth volume estimation value; and finally, carrying out weighted fusion on the second and fourth estimated values to obtain the final deslagging volume. According to the method, multi-source information of sound vibration, vision and water content is fused, the precision and robustness of slag discharge volume estimation are effectively improved, the method adapts to complex working condition changes, and the safety and efficiency of shield construction are guaranteed.

Improvements in acoustically dispensed samples that are injected into an open port probe (OPP) are described. Apparatus and method are described that calibrate the volume dispensing determination and mechanisms in the acoustic dispenser to produce accurate and precise volumetric delivery.

The invention relates to the technical field of glass measuring tool verification, and particularly discloses a verification device and method for a glass measuring tool commonly used in a laboratory. The side wall of the movable base is rotationally connected with a movable lead screw. The movable screw rod is in threaded connection with a movable block; the side wall of the moving block is fixedly connected with a rotating motor; through the arrangement of the movable base and the fixed bin, the contact time of the hand and the glass measuring tool during verification is greatly shortened, the temperature rise of the glass measuring tool is effectively prevented, workers are assisted to verify the glass measuring tool, and according to the arrangement of the cleaning mechanism and the drying mechanism, the cleaning and drying work can be rapidly achieved, and the working efficiency is improved. And the verification efficiency is improved.

The present invention relates to a method for determining the filling volume of at least one liquid-filled receptacle of a carrier plate by means of a system for determining the filling volume and to a system for determining the filling volume of at least one liquid-filled receptacle in a carrier plate.

The invention belongs to the field of water transportation engineering, relates to a sand cabin capacity measurement technology, and particularly relates to a sand cabin capacity measurement method and system based on laser scanning, which are used for solving the problem that proper point cloud data rejection modes and loading coefficients during conversion cannot be allocated for different sand material types in the prior art. Comprising a data acquisition module, a data checking module, a data processing module and a database, the data acquisition module, the data checking module, the data processing module and the database are sequentially in communication connection, and the data checking module is further in communication connection with the database; the data acquisition module is used for carrying out volume data acquisition on a sand cabin and obtaining full cabin data and empty cabin data; according to the invention, the three-dimensional laser scanner is introduced as digital inspection equipment to quickly inspect the entering volume of the sand, so that an objective and accurate volume result is obtained, disputes caused by human subjective factors in the sand collecting process are avoided, and the shipborne sand volume can be quickly confirmed.

The invention discloses a pipetting amount testing method and system of in-vitro diagnostic equipment and a storage medium, and particularly relates to the technical field of in-vitro diagnostic equipment, and the pipetting amount testing method comprises the steps of S1, multi-modal sensing data acquisition and preprocessing, S2, data fusion processing, S3, adaptive calibration, and S4, dynamic monitoring and report generation. According to the invention, the flow velocity and volume change of the liquid can be accurately calculated, bubble interference is effectively eliminated, adaptive calibration is realized, real-time monitoring and abnormity positioning are realized, a calibration report is generated and safely stored and traced, meanwhile, the optimal system performance is guaranteed, and the accuracy, reliability, intelligent degree and data safety of the pipetting amount test of the in-vitro diagnostic equipment are improved.

A method (10) for estimating the volume (V) of a tank (2) to be filled from a pressurized fluid distribution station (5), such as gaseous hydrogen, the method (10) comprising the following steps: - a step (S1) of injecting a pressurized fluid stream into the tank (2), - a step (S2) of determining a pressure variation (dp) in the tank (2) after the injection of the fluid stream, the pressure variation being determined relative to an initial pressure ( of the tank (2) before the injection, - a step (S3) of determining a quantity (dm) of the fluid stream injected into the tank (2), - a step (S4) of estimating the volume (V) of the tank (2) to be filled as a function of the quantity (dm) of the fluid stream injected into the tank (2) and as a function of the pressure variation (dp) in the tank (2) after the injection of the fluid stream.characterized in that the volume (V) of the reservoir (2) to be filled is also estimated as a function of an injection temperature ( ), i.e., a temperature of the fluid flow entering the reservoir (2), and as a function of a temperature change (dT) in the reservoir (2) after the injection of the fluid flow, the temperature change being determined relative to an initial temperature ( ) of the reservoir (2) before the injection. Figure of the abstract: Figure 2,

A method for ascertaining at least one configuration of a metering device for buik goods to be metered. A method for obtaining a recommendation for a configuration of a metering device for buik goods to be metered, and devices for processing data are also provided.

The invention discloses a burette liquid level scale calibration machine and a quantitative scale calibration method thereof.The burette liquid level scale calibration machine comprises a rack fixed to the rear side of a workbench, a ball screw extending in the vertical direction is arranged in the middle of the front end face of the rack, and the upper end of the ball screw is driven by a servo motor; vertical guide rails are symmetrically arranged on the two sides of the ball screw, and the two ends of the rear side of the floating platform are supported on the vertical guide rails through guide sliding blocks and connected with the ball screw through screw nuts; the glass tube support is fixed to the workbench and used for supporting a glass tube. The code spraying device is mounted on the floating platform; and the injector is used for injecting purified water into the glass tube. The method comprises the steps that a first water inlet valve is opened, and purified water enters an injector; the second water inlet valve is opened, and water in the injector is injected into the glass tube to reach the initial water level; filling the injector; the servo motor drives the floating platform to ascend and descend, and the photoelectric switch stops when detecting the liquid level; spraying scale marks on the glass tube; and repeating the steps. The device is good in product quality and low in labor intensity.

The invention provides oiling machine verification equipment, and belongs to the technical field of oiling machine verification equipment structures. According to the oiling machine verification equipment, through the design that the number of the measuring tanks is multiple, the multiple measuring tanks are communicated with one another, and the first valve is arranged between every two communicated measuring tanks, for some oiling machines with large verification values, the size of one measuring tank does not need to be increased independently; when a transport vehicle passes through some special terrains, such as bridge openings, tunnels and abrupt slopes, the measuring tank without increasing the volume can also smoothly pass through the transport vehicle, and bad situations such as damage are avoided. In addition, when the verification equipment is transported to the field, even if the equipment cannot be horizontally placed temporarily due to the uneven ground, the compressed distance of the elastic moving part of the spring damper is detected through the infrared sensor, and then the telescopic part is controlled to extend outwards or retract by different lengths through the telescopic controller; and the equipment can be adjusted to a horizontal position.

A method (10) for estimating the volume (V) of a tank (2) to be filled from a pressurized fluid dispensing station (5), such as gaseous hydrogen, the method (10) comprising the following steps: - a step (S1) of injecting a pressurized fluid stream into the tank (2), - a step (S2) of determining a pressure variation (dp) in the tank (2) after the fluid stream injection, the pressure variation being determined relative to an initial pressure (p0) of the tank (2) before the injection, - a step (S3) of determining a quantity (dm) of the fluid stream injected into the tank (2), - a step (S4) of estimating the volume (V) of the tank (2) to be filled as a function of the quantity (dm) of the fluid stream injected into the tank (2) and as a function of the pressure variation (dp) in the tank (2) after the fluid stream injection.characterized in that the volume (V) of the reservoir (2) to be filled is also estimated as a function of an injection temperature (Tinj), i.e. a temperature of the fluid flow entering the reservoir (2), and as a function of a temperature variation (dT) in the reservoir (2) after the injection of the fluid flow, the temperature variation being determined relative to an initial temperature (T0) of the reservoir (2) before the injection.

The invention is suitable for the field of petrochemical engineering, and provides a gas station breathing process VOCs emission amount correction method based on the type of an oil gas recovery vacuum pump. Calculating the pressure increment caused by excessive oil gas recovery (the gas-liquid ratio is 1.1) and reverse air leakage of a vacuum pump in the oil tank in the secondary oil gas recovery process, and deducing a correction formula of VOCs emission factors; secondly, a discharge amount correction model is established by combining the use proportion and the leakage proportion of a gas station fixed-frequency pump, the installation proportion of a three-time oil gas recovery device and the annual gasoline sales volume; the accuracy of discharge amount calculation is verified by actually measuring the single discharge amount of VOCs at the P / V valve of the gas station and monitoring the opening and closing frequency of the P / V valve. According to the method, the problem that the influence of an existing method on reverse leakage of the fixed-frequency pump is ignored is solved, the precision of checking the VOCs emission amount of the gas station is remarkably improved, and a reliable basis is provided for precise pollution control and gas station VOCs emission supervision.

This invention discloses a method for measuring the remaining hydrogen content in solid-state hydrogen storage, belonging to the field of solid-state hydrogen storage technology. The method includes calculating a first hydrogen consumption based on the specific power and voltage of the fuel cell stack; calculating a second hydrogen consumption based on the diameter and duty cycle of the exhaust valve, as well as pre-acquired ambient temperature and pressure; and finally calculating a first remaining hydrogen content based on the total hydrogen weight, the first hydrogen consumption, and the second hydrogen consumption. This invention calculates the hydrogen consumption at the hydrogen tail exhaust more accurately by using the parameters of the exhaust valve and environmental parameters, thereby obtaining a more accurate first remaining hydrogen content and achieving more precise remaining hydrogen content calibration. Furthermore, this invention obtains the second remaining hydrogen content based on the hydrogen pressure value and the pre-acquired hydrogen storage mass density of the hydrogen storage module, and uses the second remaining hydrogen content to calibrate the first remaining hydrogen content, thereby further improving the accuracy of remaining hydrogen content calibration.

The present invention involves: dissolving a dye in a volatile liquid to prepare a dye-containing volatile liquid that contains the dye at a predetermined concentration (step 11); suctioning the dye-containing volatile liquid by a dispenser and discharging the same into a measurement vessel (step 12); drying the dye-containing volatile liquid discharged into the measurement vessel (step 13); adding, after the drying, a predetermined amount of a low-volatile liquid having a volatility lower than that of the volatile liquid to the measurement vessel to dissolve the dye and prepare an assessment liquid (step 14); conducting an optical measurement on the assessment liquid (step 15); and determining a discharged amount that is the volume of the dye-containing volatile liquid discharged into the measurement vessel, on the basis of a measured value of the assessment liquid obtained by the optical measurement, the added amount of the low-volatile liquid, and the concentration of the dye in the dye-containing volatile liquid (step 16). As a result, the amount of a volatile liquid dispensed by a dispenser such as a micropipette can be accurately measured.

A water heating system 1 comprises a vessel 2 holding water and receiving heat from heat sources 12, 20. A temperature sensor 24 comprises a plurality of sensing elements (102, Fig. 10) and senses a t

The application discloses a kind of milliliter capacity bottle water injection setting method, system, electronic equipment and storage medium, comprising: according to the first image of shooting capacity bottle, obtain bottle neck variable diameter position;With bottle bottom to bottle neck variable diameter position is set as first area, bottle neck variable diameter position to pre-set first bottle neck position is set as second area, first bottle neck position to pre-set second bottle neck position is set as third area, second bottle neck position to scale line position is set as fourth area;Second image of capacity bottle is continuously photographed in liquid level rising process;Using first detection method, liquid level is detected according to second image, when liquid level is located in first area, quickly water injection is carried out below liquid level, when liquid level is located in second area or third area, slowly water injection is carried out below liquid level, when liquid level is located in fourth area, drop injection is carried out above liquid level, using second detection method, liquid level is detected according to second image, when liquid level reaches scale line position, stop drop injection.Can improve the calibration accuracy of milliliter capacity bottle.

The present invention relates to a test system and method for a non-contact identification method of water accumulation in a tunnel. The system includes a tunnel model component, a water injection component, a data acquisition component, a comparison and verification component, an identification and analysis terminal, and a drainage component. The tunnel model component is used to accumulate injected flowing water. The water injection component injects flowing water with an adjustable water pressure. The data acquisition component is used to collect time series data of the tunnel water accumulation test process. The comparison and verification component is used to record the real water accumulation information and flow rate during the tunnel water accumulation test process. The identification and analysis terminal uses a non-contact identification method to analyze the time series data, extract the water accumulation information and flow rate, and compare them with the real value. The drainage component is used to discharge the accumulated water after a single group of tests. Compared with the prior art, the present invention compares the non-contact identification results of tunnel water accumulation with the real value through experiments, solves the problem that tunnel water accumulation cannot be tested on site, and can be used to verify and improve the accuracy and practicality of the method.

The invention relates to a method for ascertaining at least one configuration of a metering device for bulk goods to be metered, to a method for obtaining a recommendation for a configuration of a metering device for bulk goods to be metered, and to devices for processing data.

The present invention provides a fully automatic capacity calibration device for a small-capacity container, comprising a high-precision balance, a water injection needle, a camera device, a temperature sensor, a water supply mechanism and a central control system; the water injection needle is connected to the water supply mechanism; the water injection needle is arranged on a lifting device; the water injection needle can be moved above the high-precision balance; the camera device is arranged on the lifting device; the camera device can be moved to one side of the high-precision balance; the probe of the temperature sensor is located at the water source of the water supply mechanism, and the temperature sensor is used to detect the temperature of the water; the high-precision balance, the camera device, the temperature sensor, the water supply mechanism and the lifting device are all connected to the central control system for communication. Through the device of the present invention, the labor intensity of the inspection personnel is greatly reduced, the accuracy of the inspection is improved, the inspection results can be photographed and traced, making the inspection work more scientific, and providing a new intelligent tool for improving the quality inspection work in my country.

The invention discloses a gas volume calibration method and system based on a critical flow venturi nozzle, and relates to the technical field of gas flow, and the method comprises the following steps: constructing a volume calibration device comprising a gas source, a switch valve, the critical flow venturi nozzle and a container to be measured; the container to be measured is vacuumized to a target value, the switch valve is opened, gas in the gas source enters the container to be measured through the critical flow venturi nozzle, and the volume calibration device enters a critical flow state; obtaining the state parameter of the gas source outlet during the critical flow state, and the pressure rise amount and the average temperature of the to-be-measured container; obtaining the total mass of gas flowing into the to-be-detected container based on the state parameters; and obtaining a volume calibration result of the to-be-measured container based on the pressure rise amount, the average temperature and the total gas mass. And high-efficiency, low-cost and high-precision calibration of the volume of the gas container is realized.

A trace meter and a dynamic ultra-micro pipetting device calibration method. The trace meter comprises a measurement chamber (1), a temperature sensor (2), a pressure sensor (3) and a controller (4); the top of the measurement chamber (1) is open; the temperature sensor (2) is arranged at the bottom of the measurement chamber (1); the pressure sensor (3) is arranged below the measurement chamber (1); the temperature sensor (2) and the pressure sensor (3) are both electrically connected to the controller (4); the temperature sensor (2) is used for measuring the temperature of a liquid in the measurement chamber (1); the pressure sensor (3) is used for measuring the weight of the liquid in the measurement chamber (1). The accuracy of ultra-micro dynamic pipetting of a high-throughput nucleic acid extraction device can be conveniently measured and calibrated, so as to improve the metering accuracy of ultra-micro pipetting of the high-throughput nucleic acid extraction device.

A dye-containing volatile liquid containing a dye at a predetermined concentration is prepared by dissolving the dye in a volatile liquid (step 11); the dye-containing volatile liquid is sucked by a dispenser and dispensed into a measurement container (step 12); the dye-containing volatile liquid dispensed into the measurement container is dried (step 13); after the drying, a predetermined amount of a low-volatility liquid having volatility lower than the volatility of the volatile liquid is added to the measurement container to dissolve the dye, thus preparing an evaluation liquid (step 14); optical measurement is performed on the evaluation liquid (step 15); and the dispensing amount which is a volume of the dye-containing volatile liquid dispensed into the measurement container is determined based on a measured value of the evaluation liquid by the optical measurement, an amount of the low-volatility liquid added, and a concentration of the dye in the dye-containing volatile liquid (step 16). This makes it possible to accurately measure the dispensing amount about a volatile liquid of a dispenser such as a micropipette.

Provided are systems and methods for line volume calibration, and measurement of fluid samples delivered to an interrogation point. In various embodiments, a known fluid volume comprising a sample line fluid and a secondary fluid is delivered to a fluid boundary sensor. The fluid boundary sensor assists in determining the position of the boundaries between the various fluids, and the positions of these boundaries are used to determine the sample line fluid volume.

The measuring tube module (M1) comprises a tube (11) with a lumen (11*) enclosed by a wall and extending from a first (tube) end to a second (tube) end, first and second measuring electrodes (21, 22) positioned on and / or in the wall of the tube for tapping electrical potentials established within a measuring substance located in the lumen of the tube, at least one electrical coil (31) mechanically connected to the tube for generating and / or detecting a magnetic field (H), and coil electrodes (311, 312) positioned on and / or in the wall of the tube and electrically connected to the coil. The measuring tube module can also be a component of a modular system or be used to form a modular (flow) measuring device suitable for measuring at least one measured quantity of an (electrically conductive) liquid substance flowing in a process line and / or a test arrangement for a basic module (M2) of the modular system (M1, M2).

Systems and methods for storing fluid and sensing volume are described. In some embodiments, a system may include a container having an internal volume that is configured to change as fluid enters or exits the container, a first loop disposed on a first side of the container, and a second loop disposed on a second side of the container. A first current traveling through one of the first loop and the second loop may induce a second current in the other of the first loop and the second loop, and a magnitude of the second current may vary based on changes in the internal volume of the container.

The invention discloses an intelligent ultrasonic volume correction instrument verification method and device, and the method comprises the steps: constructing a verification three-dimensional model according to the data type of detection data, and dividing the three-dimensional model into a plurality of regions; detecting the detected volume correction instrument, calculating a static error score and a first dynamic error score, analyzing the static error score, determining static detection data and first supplementary detection data, and performing supplementary detection through the first supplementary detection data; calculating a second dynamic error score of each region, and determining a to-be-verified region; performing supplementary detection through the second supplementary detection data; and calculating a first dynamic error score of the second supplementary detection data, determining a third dynamic error score in combination with the first dynamic error score of the detection data, performing analysis according to the third dynamic error score, and determining dynamic verification data. Static flow and dynamic flow are comprehensively detected, and the detection accuracy of the ultrasonic volume correction instrument is improved.

The present invention relates to a device (1), apparatus, system and method for determining a fill level of a liquid in a container (2), preferably a laboratory container. The device (1) comprises a pressure source (3) to pressurize the container (2), a pressure sensor (4) to detect a gas pressure inside the container and a control unit (5). The pressure source (3) and the pressure sensor (4) are to be fluidically coupled to the container (2). The control unit (5) is configured to activate the pressure source (3), determine a time interval between the container (2) having a first gas pressure and the container having a second gas pressure after activation of the pressure source (3), and determine the fill level of the liquid in the container (2) based on the time interval.

Systems and methods for calibrating a gas pycnometer utilizing a custom volume reference standard are disclosed. The custom volume reference standard may include a material. The material may include a low GTE and high-accuracy dimensions. The material may have a high-aspect ratio reference shape corresponding to an inner area of a custom made sample cup. The custom volume reference standard may include a specified number of inclusions of the material, a high purity, and / or an accurately known density. The custom volume reference standard may include a known volume.