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Secondary salinization soil leacheate sampling device
InactiveCN119555425Apromote repairGuarantee the quality of groutingWithdrawing sample devicesPreparing sample for investigationSoil scienceSoil remediation
The invention belongs to the technical field of soil remediation, and discloses a secondary salinization soil leacheate sampling device which comprises a drill rod, a grouting main pipe is arranged in a sampling cavity of the drill rod, the outer wall of the grouting main pipe is communicated with a plurality of grouting branch pipes, and the grouting branch pipes are in transmission connection with a first driving assembly in the sampling cavity; the grouting branch pipe comprises an inner pipe communicating with the outer wall of the grouting main pipe, and an outer pipe in transmission connection with the first driving assembly is slidably connected to the inner pipe. A plurality of sampling barrels with openings are rotationally arranged on the outer pipe, and the sampling barrels are in transmission connection with a second driving assembly arranged on the outer pipe; and a spirally arranged cutting knife is arranged in the sampling barrel. The device is compact in structure and convenient to use, leacheate injection and later sampling can be carried out in secondary salinized soil through the same device, a sample obtained after soil leaching can be stably and effectively obtained, the influence of the sampling process on the sample is avoided, later detection and use are facilitated, and secondary salinized soil leacheate remediation is assisted to be completed.
Owner:SHANGHAI ACAD OF AGRI SCI
Electronic product shell laser detection equipment
PendingCN119574500Aincrease speedavoid compromising accuracyDispersed particle filtrationOptically investigating flaws/contaminationGear wheelElectric machinery
The invention discloses electronic product shell laser detection equipment, and relates to the technical field of electronic product detection.The electronic product shell laser detection equipment comprises a rack and a cleaning assembly, a conveying belt is arranged in the rack, a positioning assembly is arranged on the outer side of the conveying belt, and the cleaning assembly is arranged at the top of the rack; and the cleaning assembly comprises a fixed box, a motor, a fan blade shaft, a filter plate, a rack, a driving gear, a first duplicate gear, a second duplicate gear, a driven gear and a cleaning roller. After the conveying belt conveys the electronic product shell to the position below the fixing box, the electronic product shell can make contact with the sponge on the outer side of the cleaning roller, so that the electronic product shell is wiped and cleaned, and in the process, the rack can make contact with the driving gear; therefore, the cleaning roller is driven to roll through the first duplicate gear, the second duplicate gear and the driven gear, and under the acceleration structure of the first duplicate gear and the second duplicate gear, the rotating speed of the cleaning roller can be increased, so that the effect of wiping and cleaning the shell is improved.
Owner:SHENZHEN DESHENGXING IND CO LTD
Multi-sensing-value double-tipping-bucket rainfall sensor
PendingCN119535646Aavoid compromising accuracyGuaranteed absolute levelRainfall/precipitation gaugesIncline measurementMeasurement deviceEnvironmental engineering
The invention provides a multi-sensing-value double-tipping-bucket type rainfall sensor, and relates to the field of rainfall sensors. The multi-sensing-value double-tipping-bucket type rainfall sensor comprises a collecting device, a supporting device, a first measuring device and a second measuring device, the collecting device is arranged at the top end of the supporting device, the second measuring device is arranged at the top end of the supporting device, the collecting device comprises a shell, a water bearing device is arranged at the position, close to the upper portion, of the inner side wall of the shell, and the water bearing device is arranged on the inner side wall of the shell. The bottom end of the inner side wall of the water receiver is rotationally connected with a filter screen, and the side wall of the bottom end of the filter screen penetrates through the middle of the bottom end of the inner side wall of the water receiver and is in threaded connection with a cleaning and detaching nut. By arranging the collecting device, equipment blockage and influence on detection data caused by long-time use of the water receiver are avoided, by arranging the supporting device, it is guaranteed that the whole device is in an absolute horizontal state before detection, the first measuring device can play a good role in buffering rainwater, the measurement resolution is improved, and by arranging the second measuring device, the detection accuracy is improved. And the measurement precision under the condition of heavy rainfall (heavy rainfall intensity) is effectively improved.
Owner:SHANGHAI CHANGWANG METEOTECH CO LTD
Bridge member anticorrosive coating thickness detection device
ActiveCN222635456UImpact on test resultsavoid compromising accuracyMeasurement devicesCleaning using toolsCoated surfaceGear wheel
The utility model relates to the technical field of coating detection, and discloses a bridge member anticorrosive coating thickness detection device comprising a placing plate, a detection main body arranged on the top of the placing plate, a correction assembly arranged on the top of the placing plate, support frames arranged on two sides of the placing plate, and linear grooves arranged on the tops of the support frames. A sliding rod and a lead screw A are installed in the two linear grooves correspondingly, and one end of the lead screw A is fixedly connected with a motor A. According to the utility model, through the arrangement of the detection assembly, when the thickness of the coating of the bridge member is detected, the motor B drives the moving seat to move horizontally and transversely, and in the moving process of the moving seat, the gear in the lifting plate rotates under the action of the toothed plate, so that the brushing piece is driven to rotate, and the thickness of the coating is detected. When the device detects the thickness of the anti-corrosion coating of the bridge component, the surface of the coating is automatically cleaned, the influence of impurities on the detection result of the thickness of the coating is avoided, and the accuracy of the detection result is improved.
Owner:CHONGQING JINGHENGXIN ENG QUALITY INSPECTION CO LTD
Device for collecting working temperature of photovoltaic module in real time
PendingCN119508674AIncreased height adjustabilityHigh precisionRadiation pyrometryThermal insulationMechanical engineeringPhysics
The invention relates to the field of photovoltaic technology, in particular to a photovoltaic module working temperature real-time acquisition device which comprises a supporting stand column and the like. The supporting stand column serves as a supporting carrier of the device, the sliding rod is installed in the inner wall of the upper portion of the supporting stand column in a sliding mode, the installation box is rotatably installed at the top of the sliding rod through an installation ring fixedly connected to the bottom, and installation partition plates are symmetrically arranged at openings in the two sides of the installation box. The infrared temperature sensors are symmetrically and rotationally mounted at the openings in the two sides of the mounting box through mounting rods. The height adjustability of the acquisition device is realized through the driving assembly, and the acquisition angle of the infrared temperature sensor can be flexibly adjusted through the cooperation of the driving assembly and the swing assembly, so that the device can measure at different heights, and can automatically adjust the acquisition angle according to the actual layout of the photovoltaic module. Therefore, the accuracy and the coverage range of temperature measurement are improved.
Owner:HUANENG RENEWABLES CORP LTD YUNNAN BRANCH
Deep underground water quality on-line monitoring equipment
ActiveCN119618741Ashorten the timeImprove detection efficiencyGeneral water supply conservationWithdrawing sample devicesWater resourcesControl cell
The invention discloses deep underground water quality on-line monitoring equipment, and belongs to the technical field of water quality monitoring equipment. In order to solve the problem of low detection efficiency of the existing product, the invention provides the following technical scheme: the device comprises a monitoring cabinet, a touch display screen, and a cross beam, a water pump, a control unit and a water quality monitoring unit which are arranged in the monitoring cabinet. The detection mechanism arranged in the water quality monitoring unit is matched with the driving mechanism to sample and detect water resources entering the monitoring pool, and the detection assembly in the detection mechanism intercepts the water resources in a small space, so that the standing time of the water resources before detection is shortened; the water resource detection efficiency is further improved through mutual switching type adjustment among the multiple detection assemblies, frequent start and stop operation of the water pump is not needed, the service life of the water pump is prolonged, configuration of a control valve is avoided, the equipment cost and configuration of related control programs are reduced, and equipment popularization is facilitated.
Owner:HEBEI YUANJIAN FENGXING ENVIRONMENTAL PROTECTION EQUIP CO LTD +2
Rootstock processing, shearing and splitting integrated device and method for grape grafting
The invention discloses a rootstock processing, shearing and splitting integrated device and method for grape grafting, and relates to the technical field of plant grafting processing, the rootstock processing, shearing and splitting integrated device comprises a connecting assembly and a fixing assembly, and a shearing assembly is arranged in the connecting assembly; when the device is used, the sleeve is arranged on the outer surface of a stock in a sleeving mode, the first scissor clamp and the second scissor clamp are pressed, so that the two scissor blades move relatively, the stock is cut off, then the pressing force is released, and the broken portion of the top of the stock is pulled out. The cutting and splitting cover is rotated to the top of the sleeve, the pressing block is pushed downwards, the cutting and splitting rod pushes the connecting plate, the connecting block and the cutting and splitting blade to move downwards, and the fracture surface of the rootstock is cut. Under the cooperation of the connecting assembly, the shearing assembly and the splitting assembly, shearing and splitting are integrated, scissors and peelers do not need to be frequently replaced, time is saved, and a scissor blade and a splitting blade are located in the sleeve and the splitting cover respectively, so that the protection effect can be achieved.
Owner:ZHEJIANG ACADEMY OF AGRICULTURE SCIENCES
Electric drive bridge voltage monitoring device
ActiveCN222482323UReduce the temperatureaccelerated dissipationCurrent/voltage measurementNon-rotating vibration suppressionTemperature controlElectric machine
The utility model relates to the technical field of voltage monitoring, and discloses an electric drive bridge voltage monitoring device, which comprises an electric drive bridge body, a transmission motor arranged on one side of the electric drive bridge body, a protection box fixedly connected to the front side of the transmission motor, and heat dissipation mechanisms arranged on two sides of the protection box. When the temperature control switch detects that the temperature in the protection box is too high, the temperature control switch starts the plurality of heat dissipation fans, and the plurality of heat dissipation fans can rapidly discharge air with heat in the protection box, thereby reducing the temperature in the protection box, and preventing the voltage monitor body from being damaged by electronic components in the protection box due to the too high temperature. And when the temperature in the protection box is lower than a temperature threshold set by the temperature control switch, the temperature control switch turns off the plurality of heat dissipation fans, so that electric energy can be saved, heat generated when the voltage monitor body works can be transmitted to the heat dissipation fins, and the heat dissipation fins can accelerate heat dissipation.
Owner:NANJING SCAGE AUTOMOBILE TECH CO LTD
Coring device for cement foundation pile detection
ActiveCN119666454AImprove stabilityavoid compromising accuracyWithdrawing sample devicesFoundation testingArchitectural engineeringStructural engineering
The invention discloses a coring device for cement foundation pile detection, and relates to the technical field of cement foundation pile detection.The coring device comprises a base, two sets of rolling wheels are symmetrically installed at the bottom of the base, a fixing frame is fixedly installed at the top of the base, a through groove is formed in the center of the top of the base in a penetrating mode, and the coring device further comprises supporting rods symmetrically installed at the top end of the interior of the fixing frame; the bottom ends of the two supporting rods are fixedly connected with the base, a movable seat is slidably connected to the upper portions of the exteriors of the two supporting rods, core drilling mechanisms are arranged on the top and the lower portion of the movable seat, meanwhile, one side of the interior of the movable seat is in threaded connection with a threaded rod, and the two ends of the threaded rod are rotationally connected with the fixing frame and the base correspondingly. The perpendicularity of the core drilling mechanism can be measured in real time in the coring process when coring detection is conducted on a cement foundation pile, if deflection occurs, workers can be reminded in time, timely adjustment is facilitated, the situation that the coring precision is affected by the deflection of a drilled core is avoided, and practicability is improved.
Owner:FUJIAN TOP TESTING TECH CO LTD
Toughness detection device for packing belt
ActiveCN222652725Ureduce volumeavoid compromising accuracyMaterial strength using tensile/compressive forcesSlide plateMechanics
The utility model relates to the technical field of packing belt detection, in particular to a packing belt toughness detection device which comprises a frame and a fixing plate fixed in the frame, a pressure sensor is arranged at the top of the fixing plate, and a packing belt fixing assembly corresponding to the pressure sensor is arranged in the frame. The top of the inner wall of the frame is provided with a tension spring and a distance measuring rod which correspond to the packing belt fixing assembly, the bottom of the tension spring is connected with a hanging ring for a packing belt to penetrate through, a sliding plate in sliding connection with the frame is arranged above the fixing plate, and the sliding plate and the bottom of the inner wall of the frame are connected with a lifting piece. The size of the detection device is greatly reduced while the detection length is ensured, and the portability of the device is improved; before detection, the packing belt penetrates through the hanging ring below the tension spring, and the detected packing belt is straightened through elastic deformation of the tension spring, so that the situation that the accuracy of extension length detection is affected due to the fact that the packing belt is loose when fixed is prevented.
Owner:ANHUI SHANHE NEW MATERIALS CO LTD
Clothing cloth cutting equipment
ActiveCN222525023Uavoid compromising accuracyquick releaseSevering textilesTextile disintegration and recoveryHydraulic cylinderCotton material
The utility model belongs to the technical field of garment production, and particularly relates to garment fabric cutting equipment which comprises a machine body, a supporting frame is fixedly connected to the outer wall of the machine body, a hydraulic cylinder is fixedly connected to the outer wall of the supporting frame, the output of the hydraulic cylinder penetrates through the supporting frame and is in sliding connection with the supporting frame, and a cutter is fixedly connected to an output shaft of the hydraulic cylinder. And a feeding device is arranged on the machine body. According to the clothing cloth cutting equipment, when cloth is placed on a discharging plate, an extrusion rod is pushed, the extrusion rod can apply acting force to a connecting rod at the moment, the connecting rod moves downwards, in the process, a transverse rod can drive a pressing rod to move downwards, and therefore the cloth is clamped, and meanwhile a second clamping block coincides with a through groove; and at the moment, a second clamping block pops up and is clamped into a through groove under the elastic force effect of a third spring, so that a pressing rod is limited, the cloth can be fixed through the design, and the situation that the cutting precision is affected due to the fact that the cloth is wrinkled during cutting is prevented.
Owner:HUBEI MINGYU CLOTHING CO LTD
Stock yard dust raising monitoring device
The utility model discloses a stockyard dust raising monitoring device which comprises a dust raising monitoring structure, a dust removal structure and a power structure, the dust raising monitoring structure is composed of a sampling head, a sampling pipe, a dust detection sensor and an air suction assembly, and the sampling head is fixedly installed at the upper end of the sampling pipe; the air suction assembly comprises an air pump and an air collecting cover which are fixedly mounted on the inner wall of the sampling pipe, a first air inlet pipe and a first air outlet pipe are fixedly mounted at the air inlet end and the air outlet end of the air pump respectively, the dust removal structure comprises a mounting pipe fixedly mounted on the inner wall of the sampling pipe, and an annular brush is fixedly mounted on the inner wall of the mounting pipe. By arranging the dust removal structure and the power structure, compared with the prior art, the device can suck external air into the sampling pipe for analysis and monitoring by using the air pump, and meanwhile, the air pump can drive the dust removal structure to clean the dust detection sensor when sucking air each time; therefore, the problem that a large amount of dust is attached to the surface of the dust detection sensor to affect the precision is avoided.
Owner:WUHU BOFA TECHNOLOGY CO LTD
Intelligent semantic analysis system and method based on large data model
InactiveCN119443109Ato offer comfortavoid compromising accuracySemantic analysisInference methodsDuplicate contentWord group
The invention relates to the technical field of semantic analysis, and discloses an intelligent semantic analysis system and method based on a data large model, and the method comprises the steps: converting an audio file into a text, dividing the text into a character group and a word group, numbering the character group and the word group, and extracting repeated content; training a deep learning model to process the character group and the word group to form a standard text; analyzing the audio to determine a language region, obtaining a dialect database and extracting dialect content; combining the dialects, generating a to-be-analyzed text, and performing semantic analysis and classification; and finally, obtaining the expression meaning of the standard text according to the analysis result. The existing marked dialects are combined and substituted into the standard text, so that potential multiple explanations caused by dialect differences in the text can be covered and revealed, all expression meanings existing in the standard text can be obtained, and the process can ensure that any possible expression meaning is not missed, so that the accuracy of the expression meanings is improved. And the final semantic analysis is more comprehensive and accurate.
Owner:SHANGHAI RUIGU SOFTWARE TECHNOLOGY CO LTD
Numerical control vertical lathe with vertical tool rest
ActiveCN222626207Uavoid collisionavoid compromising accuracyTool holdersMaintainance and safety accessoriesNumerical controlTool bit
The utility model relates to the technical field of numerical control vertical lathes, and discloses a numerical control vertical lathe with a vertical tool rest. The numerical control vertical lathe with the vertical tool rest comprises a lathe body and a base arranged on one side of a movable block, a driving motor is started, the driving motor can drive a transmission gear to rotate through an output shaft, the transmission gear can drive a rotating disc to rotate through a meshing rack, and the rotating disc can drive the base to rotate through a rotating shaft. When the tool rest body drives the fixing rod to slide in the guide groove, the tool rest body can be driven to move in the movable groove, when the tool rest body moves to the position below the base, the guide groove can drive the fixing rod to drive the tool rest body to stretch out of the movable groove, and then a tool bit on the tool rest body can be used. Along with continuous rotation of the base, the guide groove can drive the fixed rod to drive the tool rest body to retract into the movable groove, the tool bit can be prevented from excessively extending out of the base, and the tool bit which is not used during machining is prevented from impacting a workpiece.
Owner:DALIAN RUITAI CNC MASCH TOOL MFG CO LTD
Automatic assembling device and automatic assembling method for electric drive motor gearbox
PendingCN119609604Aavoid damageshorten the timeMetal working apparatusControl engineeringElectric machinery
The invention discloses an automatic assembling device and an automatic assembling method for an electric drive motor gearbox, which are applied to the technical field of automatic assembling devices for motor gearboxes. The base is fixedly connected with a floating compensation assembly used for positioning and placing a gearbox and a lifting positioning assembly which is movably connected to the base in the vertical direction based on a chain lifting assembly and used for positioning and lifting the gearbox. The base is movably connected with a clamping assembly used for clamping a motor based on the first mechanical arm and movably connected with an angle adjusting assembly used for adjusting a motor spline shaft according to the angle of a gearbox spline shaft so that the motor can be matched with the gearbox spline shaft based on the second mechanical arm. The assembling tool has the technical effects of high assembling efficiency and high yield.
Owner:SUZHOU TENGFEI PRECISION TECH CO LTD
High-precision steel plate numerical control cutting equipment
PendingCN119589156AHigh precisionImprove stabilityLaser beam welding apparatusNumerical controlStructural engineering
The invention discloses high-precision steel plate numerical control cutting equipment and relates to the technical field of steel plate cutting, the high-precision steel plate numerical control cutting equipment comprises a cutting rack and a limiting assembly, a first guide rail is arranged on the front side of the cutting rack, and the limiting assembly used for increasing the steel plate cutting precision is arranged at the lower end of the cutting rack; and the limiting assembly comprises a first hydraulic rod, a force equalizing frame, a connecting plate, a limiting frame and an anti-skid gasket, the force equalizing frame is connected to the output end of the first hydraulic rod, the connecting plate is installed at the lower end of the force equalizing frame, and the limiting frame is connected to the side edge of the connecting plate. According to the high-precision steel plate numerical control cutting equipment, a limiting frame is driven by a first hydraulic rod to achieve an area division effect on the surface of steel, so that a machining worker visually knows the cutting position of the steel by a laser cutting head, and high precision is achieved when the steel is cut; and meanwhile, the limiting frame is driven by the first hydraulic rod to exert downward pressing and limiting force on the steel, the stability of the steel during cutting is improved, and deviation of the steel is avoided.
Owner:HAILI WIND POWER EQUIPMENT TECHNOLOGY (DONGYING) CO LTD
Water quality analysis device and use method thereof
InactiveCN119595854Areduce limitationseasy to useWithdrawing sample devicesPreparing sample for investigationWater qualityCircular cavity
The invention belongs to the technical field of water quality analysis, and particularly relates to a water quality analysis device and a use method thereof. Comprising an annular floating block which is placed on a water area to be detected; an I-shaped connecting block is arranged on the annular floating block, and the top and the bottom of the I-shaped connecting block are located at the top and the bottom of the annular floating block respectively and connected through bolts; a circular cavity channel is formed in the I-shaped connecting block, and the two sides of the circular cavity channel extend to the top and the bottom of the I-shaped connecting block correspondingly; the top of the I-shaped connecting block is connected with a foundation platform through a bolt, and a long-endurance actual detection mechanism is arranged on the foundation platform; through the long-endurance real-time detection mechanism, the device can be located in the water area to be detected for a long time and analyze the water quality in the water area in real time, the situation that an operator needs to frequently operate or adjust the device according to different monitoring requirements to meet the requirements is avoided, the limitation of the device in use is reduced, and therefore the use effect of the device is improved.
Owner:JIANGSU SHANGWEISI ENVIRONMENTAL TECH CO LTD
Overpressure detection device for belleville spring
InactiveCN119574081Aavoid compromising accuracyMachine part testingHydraulic cylinderProgrammable logic controller
The invention provides a belleville spring overpressure detection device which comprises a supporting plate, and hydraulic cylinders are supported on the left side and the right side of the surface of the supporting plate through bolts. A first limiting column and a second limiting column are welded to the left part and the right part of the lower portion of the supporting plate correspondingly. A PLC (Programmable Logic Controller) is arranged in front of the hydraulic cylinder and is in bolted connection with the supporting plate; the bottoms of the first limiting column and the second limiting column are connected with a positioning placement table structure; the outer wall of the first limiting column and the outer wall of the second limiting column are connected with a movable measuring seat structure, and the device is characterized in that the movable measuring seat structure comprises a lifting seat, and the left side and the right side in the lifting seat are respectively provided with a guide hole; pressure sensors are connected to the periphery in the lifting seat through bolts, and a detection table is connected to the ends of the pressure sensors through bolts. And an infrared distance measuring sensor is in bolted connection with the surface in the detection table. According to the invention, the arrangement of the movable measuring seat structure does not contact the belleville spring for detection, thereby preventing the belleville spring from being pressed down for detection, and preventing the detection precision from being affected.
Owner:江苏三众精密弹簧有限公司
A gear shaft automatic processing and detection system
ActiveCN118990088BRealize automatic processingIncrease productivityMeasurement/indication equipmentsMetal working apparatusMeasuring instrumentMegasonic cleaning
The present application relates to the technical field of mechanical processing and automated detection, and specifically to a gear shaft automatic processing and detection system, comprising an automatic processing device, an automatic loading and unloading device, a cleaning device, a transfer device and an automatic detection device; the automatic processing device comprises a gear shaft processing machine, and the cleaning device comprises an ultrasonic cleaning machine; the automatic detection device comprises a two-dimensional measuring instrument and a three-dimensional coordinate measuring instrument; the set gear shaft automatic processing and detection system clamps the gear shaft blank to the gear shaft processing machine through the automatic loading and unloading device, so as to realize automatic processing of the gear shaft, and the ultrasonic cleaning machine is convenient for removing stains and burrs on the gear shaft finished product, so as to avoid increasing measurement errors during detection and affecting measurement accuracy; the transfer device places the gear shaft finished product on the two-dimensional measuring instrument and the three-dimensional coordinate measuring instrument, so as to realize the automation of the whole process of the gear shaft finished product from production and processing to detection, without manual intervention, thereby improving the production efficiency of the gear shaft.
Owner:ZHANGQIU DAXING PRECISION MASCH CO LTD
Local deformation processing device for cylinder sleeve
PendingCN119526226Aavoid compromising accuracysmooth entryGrinding machinesGrinding work supportsMachining processCooling fluid
The invention discloses an air cylinder sleeve local deformation machining device, and particularly relates to the technical field of air cylinder sleeve machining device.The air cylinder sleeve local deformation machining device comprises a base, a supporting and fixing structure is fixedly connected to the front portion of the upper end of the base, and a machining structure is jointly and fixedly connected to the rear portion of the upper end of the base and the rear end of the supporting and fixing structure; the rear portion of the upper end of the base and the rear end of the machining structure are jointly and fixedly connected with a cooling liquid supply box. According to the air cylinder sleeve local deformation machining device, the fixing assembly is driven to expand outwards through cooperation of the fixing assembly and the supporting and driving assembly, the air cylinder sleeve is preliminarily fixed, it is guaranteed that the machining assembly can smoothly enter the inner side of the air cylinder sleeve in the descending process, and the machining efficiency is improved. And meanwhile, the effect of the supporting driving assembly on the fixing assembly is further promoted through the effect of the machining auxiliary assembly and the supporting table, initial fixing is converted into forced fixing, and the situation that in the deformation machining process, due to continuous impact of cooling liquid, the cylinder sleeve shakes and swings, and the stability of the cylinder sleeve and the deformation machining precision are affected is avoided.
Owner:JIANGSU AGS-HAIZHU MASCH CO LTD
Manufacturing method of standard wafer with sparse scattering defect
ActiveCN119618772AMeet testing needsmeet actual needsMaterial analysis using wave/particle radiationSemiconductor/solid-state device testing/measurementMechanical engineeringReticle
The invention discloses a manufacturing method of a standard wafer with sparse scattering defects. The manufacturing method comprises the following steps: step 1, determining preset defect parameters; step 2, according to preset defect parameters, generating a defect graph formed by bulges or pits of which position coordinates are randomly arranged in the defect area, designing the defect graph into a standard sample plate structure layout, and manufacturing a target mask plate according to the standard sample plate structure layout; obtaining a target wafer through a thermal oxidation process; step 3, transferring the pattern on the target mask plate to the target wafer by using a photoetching process; and etching the target wafer by adopting an etching process to obtain a standard wafer. According to the manufacturing method of the standard wafer with the sparse scattering defects, the manufactured standard wafer has the controllable defect number and defect diameter, and the wafer can be cleaned and has the longer service life. And the distribution area, size and quantity parameters of the defects are all controllably generated, so that the requirements of different types of detection equipment can be met.
Owner:NATIONAL INSTITUTE OF METROLOGY CHINA
Deep learning model parameter self-adaptive pruning method and device, equipment and medium
ActiveCN116976422BStrong representationReduce the amount of parametersMathematical modelsMachine learningAlgorithmNoise level
This application relates to a method, apparatus, device, and medium for adaptive parameter pruning of a deep learning model. The method includes: acquiring a pre-set training set of a deep learning model; pre-training the deep learning model based on the training set to determine the parameters of each layer in the deep learning model; capturing the low-rank structure of the parameters of each layer in the deep learning model based on a unified tensor network model, and decomposing the parameters into multiple ring factor tensors and a core factor tensor; constructing an adaptive parameter pruning model based on a sparse Bayesian learning algorithm according to the prior distribution results of the Gaussian distributions corresponding to the ring factor tensors and the core factor tensor, and the prior distribution results of the Gamma distribution corresponding to the noise level; and pruning irrelevant components of the parameters based on the adaptive parameter pruning model that has reached convergence to determine the corresponding compressed parameters. This application enables the deep learning model to maintain a low number of parameters while still maintaining high accuracy.
Owner:GUANGDONG UNIV OF TECH
Gear storage box
ActiveCN222474990Uclose contactEasy to observe and useDischarging meansLocking devicesGear wheelGear tooth
Owner:上海万众实业股份有限公司
Bluetooth module test fixture
ActiveCN224083541UEasy to fixavoid compromising accuracyTransmission monitoringElectric machineryDrive motor
The utility model belongs to the technical field of test jigs, and discloses a Bluetooth module test jig which comprises a workbench, a detection mechanism is arranged at the top of the workbench, a clamping assembly is arranged in an inner cavity of the workbench, an adjusting structure is arranged in the clamping assembly, the clamping assembly comprises a connecting rod, and the connecting rod is connected with the detection mechanism. The outer side of the connecting rod is connected with the interior of the workbench. The movable frame and the clamping block are arranged, the tooth block, the clamping block and the movable frame are driven to move downwards by pressing the pressing rod, then the tooth block is separated from the teeth, fixation of the pressing rod and the movable plate is relieved, then the pressing rod is pulled, the clamping block is moved to a proper position, the driving motor is started, and the movable plate is driven to move on the outer surface of the connecting rod through the double-threaded rod. And the adjusted clamping blocks are driven to fix the Bluetooth modules with different sizes, so that the Bluetooth modules with different sizes can be conveniently fixed, and the situation that the accuracy is affected due to unstable fixation of the Bluetooth modules during testing is prevented.
Owner:SHENZHEN XINYI INFORMATION TECH CO LTD
A fixture for polarizer laser cutting machine
The present invention relates to the field of polarizer cutting and processing technology, and specifically proposes a fixture for a polarizer laser cutting machine, including: a fixing table, a flattening end-pull mechanism, a suction and bending reduction mechanism, and a pressing mechanism. The present invention uses the flattening end-pull mechanism to absorb the tops of the four corners of the polarizer, and straightens and flattens the polarizer in the width direction and the length direction, so as to avoid the polarizer placed on the supporting seat from bending and warping, which affects the accuracy of the subsequent cutting size. The flattening end-pull mechanism cooperates with the suction and bending reduction mechanism and the pressing mechanism to perform negative pressure suction and fixation on the flattened polarizer and press during partial cutting, which greatly improves the flatness of the polarizer fixation. The air blowing group cooperates with the coolant to cool the cutting area closed by the pressing mechanism, so as to avoid bending and deformation of the cut part of the polarizer due to temperature changes, thereby improving the polarizer fixation and cutting quality.
Owner:JIANGXI HENGHUI NEW MATERIALS CO LTD
A method and system for controlling an overhead crane based on machine vision
ActiveCN119218881BGood compatibilityImprove three-dimensional positioning capabilitiesCharacter and pattern recognitionBiological models
The present invention discloses a method and system for controlling an overhead crane based on machine vision, comprising: S1: installing a binocular camera, calibrating it and connecting it to a network; S2: collecting and preprocessing the image data of the overhead crane to obtain the preprocessed image data of the overhead crane; S3: obtaining the image data of a heavy object based on the preprocessed image data of the overhead crane, extracting features, calculating the number of required feature point pairs, and counting the number of SIFT feature point pairs; S4: calculating the binocular matching feature point pairs and their descriptors, and calculating the binocular depth of the heavy object and the horizontal and vertical coordinates of the center of the heavy object in the camera coordinate system; S5: calculating the hook lowering distance and the hook safety range radius function; giving an alarm when an obstacle is detected within the hook safety radius; S6: calculating the control parameters of the overhead crane and controlling the overhead crane. The present invention can solve the problems of insufficient three-dimensional positioning accuracy and limited obstacle avoidance capability of the traditional method for controlling an overhead crane based on machine vision.
Owner:KINGDOM AUTO CONTROL TECH LTD CHANGSHA
A precision testing device for planetary roller screw pairs
ActiveCN120907816Beasy to switchfast multilaterationMachine gearing/transmission testingUsing optical meansRoller screwClassical mechanics
This invention discloses a precision testing device for planetary roller screw pairs, including a testing platform with symmetrically mounted fixed plates on its top. A servo motor is fixedly mounted on one side of one of the fixed plates. The device also includes two sets of support rods symmetrically mounted below the two fixed plates, and a positioning assembly positioned between the two fixed plates. The positioning assembly includes two movable frames and limiting components symmetrically positioned on both sides of the two movable frames. This allows for easy switching between different sized positioning plates when dealing with different types of planetary roller screw pairs, facilitating reliable positioning of the nut or screw according to the type of planetary roller screw pair. Furthermore, after switching, when positioning a reverse planetary roller screw pair, multi-point positioning of the screw in the pair can be quickly achieved, facilitating the movement of the screw in the reverse planetary roller screw pair while preventing rotation during screw movement, thus improving testing accuracy.
Owner:HARBIN INST OF TECH
Trial-on monitoring equipment for shoes and shoes with monitoring function
The utility model discloses a try-on monitoring device for a shoe and a shoe with a monitoring function, the try-on monitoring device comprises: a housing suitable for being fixed on the shoe in a manner that the back of the housing is attached to the surface of the shoe; the motion sensor is fixedly arranged in the shell and is used for monitoring the motion condition of the shoe in real time; the pressure sensor is arranged on the back of the shell and used for monitoring the attaching condition of the shell and the shoe in real time. The try-on monitoring device can improve the accuracy of try-on data recording in the shoe try-on process.
Owner:ANTA (CHINA) CO LTD
FPC thrust test fixture
ActiveCN224286528Uavoid damageavoid compromising accuracyMaterial strength using tensile/compressive forcesClassical mechanicsSlide plate
The utility model provides an FPC thrust test fixture, which comprises a base station, a test assembly arranged on one side of the top of the base station and a fixed assembly arranged on one side of the top of the base station far away from the test assembly, and is characterized in that the test assembly comprises a bottom plate arranged on the base station, a sliding structure arranged on the bottom plate and a thruster structure connected to the sliding structure; the sliding structure comprises a sliding rail arranged on the bottom plate, a lead screw arranged on the bottom plate and a driving structure arranged at the end, away from the fixing assembly, of the lead screw, a sliding component is slidably arranged on the sliding rail, a nut seat is in threaded connection with the lead screw, and a sliding plate is connected to the top of the nut seat and the top of the sliding component. The thruster structure is connected to the top of the sliding plate in a threaded mode and comprises a thruster body connected to the top of the sliding plate in a threaded mode and a pushing head structure connected to the output end of the thruster body in a threaded mode. The pushing head structure comprises a connecting part in threaded connection with the output end of the thruster body and an abutting part connected to the side, away from the thruster body, of the connecting part.
Owner:CHONGQING LIANGJIANG LIANCHUANG ELECTRONICS CO LTD
A millimeter wave radar angle adjustment device
ActiveCN224593037UMonitor Angle ChangeBest monitoring range
The utility model discloses a kind of millimeter wave radar angle adjusting devices, including U-shaped frame and rotating shell, the rotating shell one side outer wall is fixedly connected with rotating part, the one side fixedly connected with rotating shaft of rotating part, and rotating shaft is rotatably connected with U-shaped frame, the top of rotating shaft passes through U-shaped frame and is fixedly connected with limit ring, limit ring is fixed between U-shaped frame by connecting assembly, the cavity of rotating shell is movably connected with connecting shaft, connecting shaft is fixedly connected with mounting block, and millimeter wave radar body is fixed with mounting block, the one end fixedly connected with first tooth block of connecting shaft, the utility model not only can make the angle of millimeter wave radar body be adjusted multidirectionally, and can make the position after adjustment keep stable, still can avoid second tooth block to produce rotation in horizontal movement process by guide rod.
Owner:湖南全航信息通信有限公司