77results about "Testing/calibration for volume measurement" patented technology

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.

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 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 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.

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 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 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.

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).

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.

The embodiment of the invention provides a calibration method of a liquid transfer device, electronic equipment and a storage medium. The calibration method of the liquid transfer device comprises the following steps: acquiring at least two reference pipetting amounts of a calibration volume section of the liquid transfer device; aiming at each standard pipetting amount, a target pipetting amount corresponding to the standard pipetting amount is determined, and under the condition that the first pipetting instruction is issued, the actual pipetting amount of the target liquid transferred by the liquid transfer device meets the pipetting precision requirement corresponding to the standard pipetting amount; the first pipetting instruction is used for enabling the liquid transfer device to transfer target liquid with a target pipetting amount; and determining calibration parameters of the calibration volume section according to the at least two reference pipetting amounts and the target pipetting amount corresponding to each reference pipetting amount. The liquid transfer device can be automatically calibrated, the calibration efficiency and accuracy can be improved, the reliability of the liquid transfer device is improved, the calibration parameters are automatically determined, manual operation is not needed, and the influence of human factors on calibration is avoided.

The present invention discloses a metrological calibration device for eliminating the influence of temperature difference on the calibration error of a fuel dispenser, belonging to the field of metrological calibration technology, comprising a base, a measuring cylinder being fixedly connected to the left side of the upper end face of the base, the lower end of the measuring cylinder being in a conical structure and extending to the bottom of the base, an observation port being provided at the center position of the front side face of the base, a standard scale line being engraved on the right side of the observation port, a fueling pipe being connected at the center position of the left side face of the measuring cylinder, which can be lowered along the inner wall of the measuring cylinder during the rotation of a rotating ring, and at the same time, a cleaning agent is transported to the inside of the rotating ring through a first liquid tank, and during the descending process of the rotating ring, the cleaning agent continuously flows through a leakage hole onto a rag, and the inner wall of the measuring cylinder is scrubbed by the rag, and when the rotating ring is raised back up, clean water is transported to the inside of the rotating ring through a second liquid tank, and during the rising process of the rotating ring, the clean water flows through the leakage hole onto the rag, and the residual cleaning agent is cleaned by the clean water to improve the cleaning effect.

The invention is achieved by a volumetric displacement calibration device (1) configured to be able to adapt at least one suction system (1000), comprising a tip (1006), having a volume VP, connected to a shaft (1003) comprising a volume change mechanism (1002). The device (1) comprises at least one main chamber (10) and one reference chamber (20), connected by a conduct (100) and a valve (102) to said main chamber (10) and at least one first pressure sensor (12) connected to said main chamber (10). The device (1) comprises also a second pressure sensor (22) connected to said reference chamber (20). The pressure sensors and calculation means allow to calculate an internal volume Vo, being the sum of the volume VP of said aspiration tip (1006), the volume (1005) of the shaft (1003) when the volume change mechanism (1002) is down. The invention is also achieved by a system (2) comprising the device (1) and at least one suction system (10001- 1000n) adapted to said device (1). The invention relates also to a calibration method of a volumetric fluid handling system (2) and comprising successive steps (a-m) to determine said volume Vo.

The invention provides an oiling machine metering precision testing device, and relates to the technical field of volume measurement, the oiling machine metering precision testing device comprises a first testing tank body, a second testing tank body, a connecting channel, an output pipeline and an oiling machine pipeline, one side of the bottom of the first testing tank body is provided with the connecting channel, and the other end of the connecting channel is provided with the second testing tank body; according to the invention, in the testing process, air in the first testing tank body can be blown out upwards from the top end of the static testing assembly, the stable state of discharged air flow can be obtained, and the stability of the static testing assembly is improved. Therefore, in the volume metering process, the flow velocity stability of the oil injected into the oiling machine pipeline is indirectly and synchronously measured and obtained, the test is more comprehensive, stable reading can be always achieved in the test process, and continuous test processing on the volume in the long-time flowing oiling process is also achieved in cooperation with a pressure sensor.

In a method for selecting a metering device (1) and determining operating parameters for metering a bulk material (2) with unknown flow properties using said metering device (1), an optical image of a specified quantity of the bulk material (2) is recorded in a reference environment (4). Geometric parameters of the bulk material (2) are determined on the basis of the optical image. A user is guided by a dialogue with an input module of an electronic data processing device. A characteristic variable for the flow properties of the bulk material (2) is determined using a machine learning method and on the basis of the determined geometric parameters and the responses of the user. The user inputs a desired conveying rate for the bulk material (2) via the input module and receives a suggestion for a suitable metering device (1) and for suitable operating parameters for metering the bulk material (2), the operating parameters being based on the determined characteristic variable for the flow properties and the desired conveying rate.

The invention relates to the technical field of biomedical treatment, and discloses a centrifugal container calibration method, device and equipment and a storage medium, and the method comprises the following steps: before preparation treatment, if a volume calibration instruction for a preparation in a centrifugal container is received, executing an extraction operation to extract the preparation in the centrifugal container into a target container, when it is confirmed that the preparation in the centrifugal container meets the preset pumping requirement, the actual weight of a target container containing the preparation is obtained, the residual volume of the centrifugal container is obtained, the preparation in the target container is conveyed back into the centrifugal container, and the target volume of the preparation in the centrifugal container is determined according to the actual weight and the residual volume; the combination of the residual volume of the centrifugal container and the measured volume of the preparation volume in the centrifugal container is realized, and the calibration accuracy of the centrifugal container is improved.

A method of measuring fluid flow in a system includes providing a fluid supply assembly which includes a fluid supply supplying fluid, a dispensing valve from which the fluid is dispensed, a dispensing line connecting the fluid supply to the dispensing valve, a gear pump including a motor and a gear being rotated by the motor to provide a flow of fluid from the fluid supply to the dispensing line, a revolution counter counting a number of revolutions of an element of the gear pump, a pressure transducer coupled to the dispensing line sensing pressure in the system, and a controller including a processor and a memory to control the system. The method further includes directing fluid from the fluid supply, rotating the gear to provide the flow of fluid from the fluid supply to the dispensing line, and providing a calibration process by modulating the gear pump.

One or more techniques and / or systems are disclosed for accurately determining the volume of liquid in a container, such as after or prior to a fluid transfer into / from the container. The volume of liquid flowing through a flow meter can be measured at multiple data intervals by a flow meter. Further, the height of a liquid inside the container can be measured by a liquid level sensor at the multiple data intervals. A register can receive data indicative of the respective measurements, and the volume of liquid in the container can be determined based on the relationship between data indicative of the measurement of the volume of liquid flowing through a flow meter at the multiple data intervals and the measurement of the height of a liquid inside the container at the multiple data intervals.

The invention relates to a method for verifying whether a correct linearization model is stored in a measuring system. In the context of the invention, linearization models serve the purpose of calculating from a transit-time-based filling-level measurement (L) the corresponding filling volume of the contents (1) of the container (3). For the verification, according to the invention a checksum of the linearization model is calculated, in order to be able to determine whether the checksum has been changed or to what extent the checksum has been changed. If this is the case, the model is interpreted as an incorrectly stored linearization model and this can be correspondingly output as a message. Calculating and outputting the checksum as provided by the invention allows the data processing involved for verifying the correct linearization model to be reduced significantly because all that is required is for just the checksum to be reconciled, rather than the entire linearization model, in order for any change in the stored linearization model to be detected.

The invention discloses a storage tank capacity meter dynamic calibration method and system based on multi-source data fusion. The method specifically comprises the steps that data are collected, oil gun refueling data and liquid level instrument data are obtained, standardized packaging processing is conducted on the oil gun refueling data and the liquid level instrument data, data format differences are eliminated, and a standardized data packet is formed; preprocessing the data in the standardized data packet, the preprocessing comprising synchronizing the timestamps of the oil gun sales data and the liquid level instrument data, and constructing a corresponding data unit; combining two adjacent data units which are overlapped in time; extracting a pure consumption interval and verifying abnormal data; if the storage tank has the initial tank capacity meter, calibrating the initial tank capacity meter of the storage tank by adopting an FGIR four-dimensional calibration algorithm; and if the initial capacity tank table does not exist, constructing the initial capacity tank table for the oil tank based on a geometric constraint strategy, and then calibrating the initial capacity tank table of the oil tank by adopting an FGIR four-dimensional calibration algorithm.

Method (10) for estimating a volume (V) of a tank (2) to be filled from a station (5) for distributing a pressurized fluid, such as gaseous hydrogen, the method (10) comprising the following steps: - a step (S1) of injecting a flow of pressurized fluid into the tank (2), - a step (S2) of determining a pressure variation (dp) in the tank (2) after the injection of the fluid flow, 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 flow 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 flow injected into the tank (2) and as a function of the pressure variation (dp) in the tank (2) after the injection of the fluid flow,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 variation (dT) in the reservoir (2) after the injection of the fluid flow, the temperature variation being determined relative to an initial temperature ( of the reservoir (2) before the injection. Abstract figure: Figure 2,