22results about How to "Accurate volume" patented technology

This invention provides a method for assessing the weight of ice accretion on power transmission lines based on multi-source data fusion and 3D reconstruction technology. By deploying image acquisition devices at four shooting positions on the target section of the transmission line and acquiring environmental parameters, the current ice accretion type can be accurately identified, and the corresponding ice density can be determined. Furthermore, based on the image data from the four shooting positions, the overall structure of the transmission line and ice accretion is reconstructed in 3D, thereby accurately determining the overall volume of the ice accretion on the target section. This reduces the error in volume assessment caused by the irregular shape of the ice accretion, thus accurately determining the ice volume of the target section. Finally, the accurate overall ice accretion mass and ice accretion mass per unit length of the target section are calculated, providing accurate data support for subsequent ice condition warnings, ice melting decisions, and line condition maintenance.

The utility model discloses a glass measuring vessel liquid level automatic constant volume device, including needle control module, clamping module, visual control module, pump liquid module, liquid storage tank and controller. Needle control module includes the thick needle and thin needle of switchable position, pump liquid module and liquid storage tank between the pipeline connection, needle control module and pump liquid module between the pipeline connection, and pump liquid module draws liquid from the liquid storage tank and injects into needle control module, needle control module, visual control module, pump liquid module are electrically connected with controller, and the needle of needle control module is lifted and switched through the controller control, and the pump liquid module is controlled to inject liquid to needle control module through the controller, and the visual control module is controlled to shoot liquid level and handle imaging through the controller. The device uses the double needle design of thick needle and thin needle, and the thick needle realizes rapid liquid injection, and the thin needle realizes accurate constant volume liquid surface, reaches the uniform speed microinjection under the liquid, real -time detection liquid level continuous change, realizes the capacity accurate constant volume.

The utility model relates to a measuring cup for containing inspection samples of biochemical instruments, belongs to the technical field of medical inspection, and is used for solving the problems that in the prior art, quality control products are complicated in subpackage operation, and result differences are too large in the operation process. The measuring cup for containing the biochemical instrument inspection sample comprises a cap assembly, a cup body and a cup bottom, the cup body is connected with the cup bottom, the cup body is provided with a containing cavity capable of containing the biochemical instrument inspection sample, the cup cap assembly is connected with the cup body, and the cup cap assembly can keep the containing cavity in a sealed state. After the cup cap assembly is removed, the measuring cup can be directly used for on-machine detection of a biochemical instrument inspection sample; the cup cap assembly comprises an upper cup cap and a lower cup cap, the upper cup cap comprises a cover part and a connecting part, and the lower cup cap comprises a protruding block, a drainage part and a pressing piece. The device can be directly used for computer operation, and overlarge result difference caused by a tedious operation process is avoided.

The utility model belongs to reagent filling automation equipment technical field discloses a kind of automatic canning machine for reagent filling, including base frame, index transmission system, filling unit, capping unit and gas-electricity integrated system, base frame is by bottom support cabinet and frame skeleton welding structure, and frame skeleton is layered truss structure;Index transmission system is integrated in base frame, and index transmission system includes feed conveyor belt and coaxial link's circular turntable, the edge of the circular turntable is provided with equal-angle arc limiting slot;The filling unit is fixed on the frame skeleton, and the filling unit includes storage hopper and the multiple-channel filling head connected, the end of the multiple-channel filling head is embedded with pneumatic ration valve, and the valve body of the pneumatic ration valve extends liquid injection pipe below.The utility model structure is strong in rigidity, and anti-vibration stable, and index transmission positioning is accurate, and multiple-channel pneumatic ration filling precision is high and anticorrosion, and vacuum chuck capping is reliable against falling off.

The invention provides a pore analysis method and a pore analysis device. The method comprises a solid-liquid wetting angle adjusting step, a pressure applying step and a porosity determining step. In the solid-liquid wetting angle adjusting step, a solid sample is immersed in a liquid medium, the wetting angle between the liquid medium and the solid sample is increased by applying external stimulation to the solid sample and / or the liquid medium, and the value of a parameter used for indicating the space occupied by the liquid medium is obtained in the state that the external stimulation is applied to serve as a first value L1. In the pressure application step, pressure is applied to the liquid medium in a state in which the external stimulus is applied, and the value of the parameter is acquired as a second value L2 in a state in which the pressure is applied to the liquid medium. In the porosity determination step, the porosity of the solid sample is determined based on the volume V of the solid sample and the comparison result of the first value L1 and the second value L2.

The invention belongs to the technical field of lactitol production, and provides a purification and regeneration device and a regeneration method in a lactitol production process. The purification and regeneration device comprises an ion exchange column, one end of which is connected with a sewage pipe and a backwashing water inlet pipe, and the other end of which is connected with a desalted water inlet pipe and a regeneration agent feed pipe; the ion exchange column is connected with a temporary storage cylinder through a connecting pipe, so as to solve the technical problem that the resin cannot be completely regenerated due to repeated use of the regeneration agent in the prior art, thereby affecting its exchange capacity. The invention realizes repeated recycling of the low-concentration regeneration agent by mixing a set volume of high-concentration regeneration agent with a low-concentration regeneration agent in a modulation cylinder and finally forming a regeneration agent of a set concentration, thereby ensuring that the concentration of the flushing regeneration agent is the set concentration. The invention can be widely used in operation scenarios for reducing solution consumption.

The utility model relates to the field of suction head for multichannel pipettor, specifically discloses a suction head for multichannel pipettor and mounting structure thereof, including clamping assembly, clamping assembly is provided with two and is symmetrically set up, clamping assembly includes clamping lever, a plurality of fixed clamping ring on clamping lever and two sleeve hoops that set in clamping lever both ends, clamping lever is composed of two symmetrical clamps, the side of two clamps that are close to each other all are solidly provided with the baffle, two baffles abut each other, the clamping groove set up on the upper end of the suction head is convenient for snap ring to be clamped into it, the snap ring is installed end by end alignment, then press the clamping plate of both sides, can press and clamp into the clamping groove the snap ring of both sides of the installation end to the clamping groove, at this moment, the mounting structure is lifted upwards, the multiple suction heads are lifted upwards simultaneously, when pressing down the multichannel pipettor, the tip of the suction head and the bottom wall of the suction head box can be avoided extrusion, the tip of the suction head can be avoided deformation, thereby ensuring the volume accuracy when the suction head absorbs liquid, guaranteeing the precision of experimental result.

The invention discloses a sample preparation pretreatment device for chloroiridic acid detection, and relates to the technical field of sewage detection. The sample preparation pretreatment device for chloroiridic acid detection comprises a sample water bucket, the outer wall of the sample water bucket is fixedly connected with a fixed support, and the interior of the sample water bucket is movably connected with a sampling mechanism. According to the sample preparation pretreatment device for chloroiridic acid detection, a driving motor drives a rotating frame to rotate through a conveying belt, sewage in a sample bucket is driven to rotate, solid substances in water move around under the centrifugal effect, and a gas bin enables a notch in the top of a sampling pipe to float at a certain position of the liquid level; according to the sewage sampling device, water at the top of the liquid level continuously flows into the sampling pipe through the notch, and meanwhile, the blocking filter plate can block solids in sewage from entering the sampling pipe, so that the accurate volume of water flowing out of the bottom of the sampling pipe can be measured when the water is detected, and the detection accuracy is improved.

The present disclosure provides an anode material and a battery, and the anode material comprises artificial graphite. An interior and / or a surface of the artificial graphite has pores, and the anode material has a pore volume of V cm3 / kg, a specific surface area of S m2 / g, and a tap density of T g / mL, where 8.5≤V*S / T≤27. The anode material and the battery provided by the present disclosure can improve electrochemical performance of the anode material while ensuring processing performance of the material.

The application relates to the technical field of plant maturity intelligent monitoring, and discloses a tree flower bud maturity intelligent monitoring method and system, which comprises the following steps: according to a pre-acquired tree flower image, analyzing flower bud distribution density, collecting multi-angle images in a region with a flower bud distribution density greater than a preset density threshold value to obtain a first image set; extracting a flower bud shape parameter, identifying a flower bud contour, and calculating a flower bud volume; extracting a morphological feature of an inner region of the flower bud contour, combining the flower bud volume, calculating a probability value of the flower bud belonging to a preset maturity grade through feature fusion analysis, and obtaining the maturity of the flower bud; combining the maturity of the flower bud and historical growth data, simulating a growth process of the flower bud, predicting a flower bud maturity time, and intelligently monitoring the maturity of the tree flower bud; the application can improve the prediction accuracy of the flower bud maturity time, realizes accurate harvesting and yield increase of the tree flower.

This invention proposes a variable-volume research battery clamp and air battery with gas pressure monitoring function, belonging to the field of battery technology. It solves the problem that existing small-scale test battery clamps used in laboratories cannot provide data related to gas research. It includes a negative electrode current collector base, an annular insulator sealing device, a nut, a cylindrical positive electrode current collector, and a gas pressure transmitter. A cylinder is fixed to the top surface of the negative electrode current collector base, and an insulating film is provided on the inner wall. The annular insulator sealing device is sleeved around the cylindrical positive electrode current collector. The top surface of the nut has an annular boss, the bottom surface of which fits against the annular insulator sealing device. The lower end of the cylindrical positive electrode current collector passes through the nut and the annular insulator sealing device sequentially and is placed inside the cylinder. Multiple pipes are fixed to the top surface of the cylindrical positive electrode current collector, and the gas pressure transmitter is connected to one of these pipes. It is mainly used for experimental research on air batteries.

The invention provides a method for evaluating the surface environment and underground tailing range. The method comprises the following steps: firstly, establishing a three-dimensional model of the surface environment, then establishing a three-dimensional model of the underground tailings by adopting a high-density resistivity method according to obvious electrical difference between the tailings in the tailings pond and surrounding stratums, and finally, fusing the three-dimensional model of the surface environment and the three-dimensional model of the surface environment through geographic coordinate matching to obtain a three-dimensional model of the underground tailings. The accurate integrated three-dimensional model of the earth surface environment and the underground tailings is obtained, and the information of the boundary and the volume of the tailings can be accurately and quickly obtained at low cost under the condition that the data of the tailings pond is incomplete. The method not only improves scientificity and effectiveness of tailing pond management and reduces environmental risks, but also provides important data support for planning, design, operation and maintenance of the tailing pond.

The invention belongs to the technical field of solvent monitoring, and particularly relates to an intelligent remaining amount monitoring system and method for a liquid chromatograph, the system comprises a control system and a liquid chromatograph main body, the control system is connected with an alarm, a tray assembly is arranged at the top end of the liquid chromatograph main body, and the tray assembly comprises a tray base and a solvent bottle tray; a placing groove is formed in the top end of the solvent bottle disc, a solvent bottle is arranged in the placing groove, a weighing disc is arranged at the bottom of the solvent bottle disc, and a weighing module is arranged at the bottom of the weighing disc and comprises a weighing main board and a weighing sensor; through the integrated control system, the weighing module and the alarm, real-time monitoring and intelligent control of the residual solvent amount are achieved, the actual volume amount of the solvent is calculated through the mass-volume conversion formula by means of mass data collected in real time, automatic alarm can be achieved when the residual solvent amount is lower than the preset alarm volume amount, and the alarm efficiency is improved. Damage caused by operation of the system under the liquid-free working condition is avoided, and the use safety is improved.

The invention belongs to the field of pressurized water reactor serious accident analysis, and discloses an integrated ellipsoidal lower end socket model for serious accident analysis and a modeling method.According to the method, an approximate assumption that an ellipsoidal lower end socket is a rotary ellipsoidal shell is adopted, node division is conducted on the ellipsoidal lower end socket, and key geometric information of the ellipsoidal lower end socket is calculated; calculating transverse and radial heat exchange areas of an ellipsoidal lower seal head, the volume of a lower seal head section, the volume of a lower cavity unit connected with the lower seal head and the heat transfer area of a molten pool; and finally, an ellipsoidal lower end socket model is constructed. By adopting the method, the ellipsoidal lower end socket can be modeled correctly, and more accurate lower end socket model parameters are provided for integrated serious accident prediction and analysis of deformation failure behaviors of the lower end socket; the problems that an existing lower end socket model is poor in modeling precision of an ellipsoidal lower end socket and cannot model a deformed lower end socket are solved.

The invention discloses a wood volume measuring method, system, equipment and medium, and relates to the technical field of wood volume automatic calculation, and the method comprises the steps: adding two layers of channel attention in a YOLOv8 backbone network, replacing a C2F module in a YOLOv8 neck with a VoVGSCSP module, so as to construct an optimized YOLOv8 model; the optimized YOLOv8 model is trained, and a recognition model used for recognizing the wood section is obtained; shooting a wood section image of to-be-detected wood and inputting the identification model to identify a wood section area; correcting radial distortion and tangential distortion of the wood section area according to internal and external parameters of the camera and a lens distortion coefficient; acquiring an actual area corresponding to the area of each pixel according to the pixel resolution of the camera, counting the pixel number of the corrected wood section area, and acquiring the actual area of the wood section area; and obtaining the wood volume according to the actual area and the wood length. According to the method, the irregular section contour can be identified to obtain the accurate wood volume.

The present invention discloses a brain hippocampus segmentation method and system based on three-dimensional medical images, and relates to the technical field of medical image processing. The method comprises the steps of: acquiring three-dimensional brain medical image volume data; extracting and cutting the three-dimensional hippocampus region of interest, and segmenting it using a segmentation network based on adaptive fusion of spatial domain and frequency domain features, and then further refining the segmentation using inter-class boundary region enhancement technology; mapping the segmentation result of the region of interest to the complete three-dimensional brain medical image volume data, and performing post-processing operations to obtain the final brain hippocampus segmentation result. The present invention solves the problems of difficulty in feature extraction and inaccurate segmentation results caused by various artifacts and noises in brain MRI images, unclear boundaries between the hippocampus as a whole and its surrounding tissues and organs, and less obvious boundaries between the head, body, and tail of the hippocampus, and significant differences in tissues and organs between different subjects.

The invention belongs to the industry of mechanical equipment, and particularly relates to an intelligent constant-volume discharger special for discharging in the aluminum electrolysis process. A cylinder is fixedly arranged above the middle of a fixed plate, a steel ball is pressed at a reducing position in the middle of a feeler lever, the surface of the steel ball is in horizontal contact connection with the left end of the feeler lever of a converter, an electromagnetic reversing valve is fixed on the upper side of an upper cover of the cylinder, a blowback nut is fixed on the fixed plate and at the outer edge of a lower cover of the cylinder, and a vent pipe penetrates through a hollow part of the blowback nut. The lower end of the connecting screw rod penetrates through the back flushing cushion to be fixedly connected with a constant volume barrel fixing clamping sleeve, a constant volume barrel is fixedly arranged on the lower portion in the constant volume barrel fixing clamping sleeve, the lower end of the connecting rod on the upper portion in the constant volume barrel is connected with a fork-shaped connecting piece through a pin shaft, and a connecting bolt is arranged in a fork body below the fork-shaped connecting piece through a fixing pin. The upper portion of the connecting rod is fixedly connected with the lower end of a piston rod. The four-pull-rod type constant-volume discharger is adopted, so that the labor intensity of workers during maintenance is reduced. The conical discharging body is adopted, the discharging constant volume is adjustable, the constant volume is accurate, the sealing performance is good, and it is guaranteed that materials are not leaked.

A micro-droplet generation method and generation system, capable of quickly preparing a large quantity of micro-droplets. The droplet generation time is greatly shortened, operations are simple and convenient, high-precision micro-pumps and other devices are not required, the system cost is reduced, the expansion capability is high, and more micro-droplets or multiple samples can be separated by expanding the size of a micro-fluidic chip. The volume and density of the formed droplets can be precisely adjusted by controlling a gap between an upper polar plate and a lower polar plate, and the quantity, the size of the area and the positions of attraction points. Provided are the micro-droplet generation method and the micro-droplet generation system capable of quickly forming high-density micro-droplets and accurately controlling the volume and density of the formed high-density micro-droplets.

The invention discloses an automatic liquid mixing machine for virus titer detection based on a plaque method. The automatic liquid mixing machine comprises a workbench, and a first constant temperature module, a second constant temperature module, a host cell liquid fixing module, a virus test sample fixing module and an execution module which are integrated on the workbench, a space interval is formed between the first constant-temperature module and the virus test sample fixing module; the execution module is provided with a first moving path, a second moving path and a third moving path; the virus test sample fixing module and the first moving path are arranged in a staggered manner, and the host cell sap fixing module and the second moving path are arranged in a staggered manner; the positions of all the modules are reasonably arranged, the execution module is used for automatically executing liquid relief, liquid separation and mixing operation, and the operation efficiency is improved while it is guaranteed that the proportion of mixed liquid obtained after mixing is accurate and the detection result is accurate.

The present invention discloses an oven performance detection method and related device based on image processing, which relates to the field of image processing technology. The method comprises: preprocessing a plurality of first surface images and second surface images obtained; performing minimum circumscribed rectangle calculation on the first and second surface images to obtain the respective corresponding minimum circumscribed rectangles; extracting the corresponding first and second size parameters to calculate the food volume; performing color feature extraction on the first and second surface images based on connected domain analysis to obtain the corresponding surface color features; performing food maturity calculation based on the respective food volumes and surface color features; performing oven baking performance stability detection based on the first and second food maturity; performing surface color difference analysis on the first and second surface color features based on the color co-occurrence matrix to perform oven baking performance accuracy detection. The present invention can effectively improve the reliability and comprehensiveness of oven performance detection.

The present invention discloses a device and method for obtaining fetal trophoblast cells from a cervical mucus sample of a pregnant woman in the technical field of in vitro diagnosis, comprising a protective cover, a lower fixing plate fixedly installed at the bottom of the protective cover, a circular ring groove is arranged in the middle position of the lower fixing plate and an upper gear ring is rotatably installed therein, a clamping frame is clamped in the upper gear ring, a plurality of groups of connecting rings are rotatably installed on the lower surface of the clamping frame, positioning tubes are clamped in the connecting rings, limiting rods are arranged at both ends of the lower fixing plate, a plurality of movable frames are slidably connected to the limiting rods, a positioning plate is fixedly installed at the upper end of the movable frame, and a plurality of groups of feeding tubes are arranged on the positioning plate. The present invention provides a device and method for obtaining fetal trophoblast cells from a cervical mucus sample of a pregnant woman, avoiding the trouble of manual mixing, improving the input efficiency, and ensuring the accuracy of the input amount of the immunomagnetic beads and the cell suspension, so that the cell suspension and the immunomagnetic beads are more fully mixed and contacted, thereby improving the capture success rate and the extraction amount.

The invention relates to the technical field of intelligent household appliances, particularly provides a clothes treatment method, device and equipment and a medium, and aims to solve the technical problem that the injection amount of a detergent is inaccurate. In order to achieve the purpose, the clothes processing method comprises the steps that clothes information of clothes to be washed is obtained; wherein the clothes information is clothes weight and clothes material; obtaining soaking water inflow and washing water inflow according to the clothes information; according to the soaking water inflow, the detergent dosage is obtained; and injecting a detergent and water into the washing cylinder according to the dosage of the detergent and the soaking water inlet amount.