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Water conservancy pipeline measuring device
ActiveCN119533247Aovercome limitationsGuaranteed accuracySpringsMechanical diameter measurementsMeasurement deviceDimension measurement
A water conservancy pipeline measuring device belongs to the technical field of pipeline measurement and comprises a pipeline and further comprises a bottom plate, a supporting unit is arranged on the bottom plate, a driving unit, a graduated scale, a measuring unit and an inner supporting unit are arranged on the supporting unit, the measuring unit is used for measuring the inner diameter, the outer diameter and the thickness of the pipeline, and the inner supporting unit is used for inner supporting positioning of the pipeline. The driving unit drives the measuring unit and the inner supporting unit to play a role at the same time. According to the invention, the same measuring device is adopted, and a single measuring step is utilized, so that the detection of three linear dimensions of the inner diameter, the outer diameter and the thickness of the pipeline can be simultaneously met, and compared with the traditional equipment which can only meet the measurement of the inner diameter of the pipeline at a single time, the comprehensive requirement on the measurement of the pipeline dimension during actual measurement can be more efficiently and comprehensively met; and the whole measurement process is carried out based on a stable and uniform reference point, so that errors caused by inconsistent reference points are fundamentally eliminated.
Owner:LIAONING BAOCHENG CONSTR ENG INSTALLATION CO LTD
Abrasion and eccentric wear detection device for top surface of adapter
ActiveCN222579119UHigh precisionImprove measurement efficiencyMechanical depth measurementsMechanical engineeringPhysics
Owner:LIUZHOU KELU MEASURING INSTR CO LTD
Method and device for measuring pitch deviation based on line laser sensor
PendingCN121876837Aeasy to set upImprove measurement efficiencyUsing optical meansRotational axisGear wheel
The invention relates to a method and device for measuring pitch deviation based on a line laser sensor, and the method comprises the following steps: S1, calibrating the position of the line laser sensor, and obtaining the coordinate value of a coordinate system of the line laser sensor in a measurement coordinate system; s2, installing a tested gear; s3, adjusting the relative position of the line laser sensor and the measured gear; selecting a measured position in the tooth surface area of the gear teeth of the measured gear, adjusting the position of the line laser sensor, and recording the sum of the offset of the adjusted line laser sensor relative to the center of the measured gear along the x axis and the y axis in the effective measurement range of the line laser sensor at the measured position; s4, performing zero returning operation on the angle sensor of the rotating shaft of the tested gear; and S5, controlling the detected gear to rotate along the center line of the detected gear. According to the method and the device, the pitch deviation can be measured in a non-contact mode, excessive calibration and leveling are not needed before detection, and the measurement efficiency and the measurement precision are both improved.
Owner:HENAN UNIV OF SCI & TECH
Waterproof performance detection device for automobile electronic product
ActiveCN222652462Uavoid irreversible deformationExtended service lifeEngine sealsCooling/ventilation/heating modificationsAir tightnessBlow out
The utility model discloses an automobile electronic product waterproof performance detection device, which belongs to the technical field of waterproof performance detection devices, and comprises a detection device main body and a pressurization device, the top of the detection device main body is connected with two support plates, and the tops of the two support plates are provided with the same cooling mechanism; by arranging the sealing mechanism, the stroke groove, the base plate and the sealing ring, the sealing ring has a certain buffering distance when being extruded, irreversible deformation caused by excessive extrusion of the sealing ring is avoided, the service life of the sealing ring is prolonged, the sealing ring can be tightly attached to the sealing groove by arranging the first spring, and the sealing effect is improved. The air tightness of the mold and the measurement accuracy of the device are improved, the air bag is extruded through the connecting plate, the air bag blows out air, and therefore the temperature in the first mold can be rapidly reduced, the speed of recovering the normal temperature of the first mold is increased, the waiting time is shortened, and then the measurement efficiency is improved.
Owner:BEIJING CHEXIAO TECH CO LTD
Comprehensive detection system for new energy automobile chip
InactiveCN119575144Aensure safetyEvaluate performanceNeural learning methodsIntegrated circuit testingNew energyData acquisition
The invention discloses a comprehensive detection system for a new energy automobile chip. The comprehensive detection system comprises a data acquisition module used for acquiring operation data of the new energy automobile chip; the signal processing module is used for converting the analog signal into a digital signal and processing the signal; the fault analysis module is used for analyzing the operation data through a machine learning algorithm and constructing high-sensitivity features strongly related to faults; the safety test module is used for carrying out HBM, CDM and EMC tests to evaluate the safety performance of the chip; the performance test module is used for evaluating the performance of the chip under set extreme conditions through a high temperature life test HTOL and an early life failure test ELFR; and the data storage and analysis module is used for storing test data. According to the scheme provided by the invention, the prediction accuracy, the measurement efficiency and the anomaly detection capability are improved according to the measured electrical variable and the measured magnetic variable, so that the performance, the safety and the reliability of the chip can be comprehensively evaluated.
Owner:AAVID (SHENZHEN) SYST CO LTD
Part size detection method based on image recognition
PendingCN119625045AHigh precisionaccurate identificationImage enhancementImage analysisComputer graphics (images)Radiology
The invention discloses a part size detection method based on image recognition, which comprises the following steps of: generating a plurality of two-dimensional images with different shadow shapes, recognizing and extracting boundary information and shadow information of a part in the two-dimensional images to obtain the shadow information and normal direction of the part in the two-dimensional images, constructing a three-dimensional image of the part, and detecting the size of the part according to the three-dimensional image. Therefore, the accurate size information of the part can be accurately recognized, the part size measurement precision is improved, the measurement efficiency is further improved, the continuously changing measurement requirements are met, and meanwhile, the normal direction is obtained by recognizing and extracting the boundary information and shadow information of the part in the two-dimensional image, so that the measurement accuracy is improved. And the normal direction information forms a normal field of the part surface, the inclination degree and the shape change of the part surface are known, and the orientation and the concave-convex condition of the part surface are determined, so that the precision of subsequently constructing a part three-dimensional model is further improved, and the measurement efficiency is further improved.
Owner:YUQIN PRECISION DRAWING TECH (SUZHOU) CO LTD
Electron energy spectrometer, electron energy spectrum measuring method and electron energy spectrum measuring system
PendingCN121978740AOvercoming signal pile-up problemsOvercome inherent inefficienciesX-ray spectral distribution measurementLight spotElectron spectroscopy
The invention relates to the technical field of electron energy measurement, and discloses an electron spectrometer and an electron energy spectrum measurement method and system.The electron spectrometer comprises a magnetic deflection unit used for receiving an incident to-be-measured electron beam, generating a magnetic field and applying the magnetic field to all to-be-measured electrons in the to-be-measured electron beam; the scintillator fluorescent screen is arranged at the downstream of the magnetic deflection unit and used for receiving the deflected electrons to be detected, and the electrons bombard the scintillator fluorescent screen and generate light spots; the optical acquisition unit is used for acquiring a light spot image on the scintillator fluorescent screen; and the signal processing unit is used for processing the light spot image so as to identify the spatial position information of the light spot in the light spot image and convert the spatial position information into electronic energy data. The method has the beneficial effects that the unification of high resolution and high measurement efficiency is realized, and the problem of signal accumulation under a high counting rate of a traditional direct measurement method and the inherent defect of low efficiency of a scanning type magnetic spectrometer are overcome.
Owner:SHENZHEN TECH UNIV
Axle bearing axial clearance measuring equipment and use method thereof
ActiveCN119533317AHigh measurement accuracyImprove measurement accuracyBearing assemblyUsing optical meansMeasurement deviceClassical mechanics
The invention relates to axle bearing axial clearance measuring equipment and a using method thereof, the equipment comprises a supporting platform, a hoisting fixing device, a transverse sliding device, a longitudinal sliding device, a measuring device and a force applying device, the hoisting fixing device, the transverse sliding device, the longitudinal sliding device and the measuring device are all arranged on the supporting platform; the longitudinal sliding device is connected with the transverse sliding device, and the force application device is connected to the longitudinal sliding device. According to the using method, the whole equipment is hoisted to an axle through the hoisting and fixing device and is fixed together; the transverse sliding device and the longitudinal sliding device are used for driving the force application device to move; the force applying device is used for pushing the axle hub to apply axial force, and the measuring device measures the axial clearance of the bearing in the hub. The stability of a measurement result is ensured, the measurement precision and accuracy are improved, automatic measurement is realized, the operation is simple, convenient and rapid, and the measurement efficiency is improved.
Owner:SHANDONG LONGZHAN MASCH SCI & TECH CO LTD +1
Bearing inner ring rolling hole measuring machine provided with guide device
InactiveCN119573583Aprecise positioningavoid damageWork holdersUsing optical meansLaser rangingMachine
The invention provides a bearing inner ring rolling hole measuring machine provided with a guide device, and relates to the technical field of bearing detection, the bearing inner ring rolling hole measuring machine comprises a base, an electric conveying belt is arranged in the base, the upper end of the electric conveying belt is provided with a laser range finder and a measuring block, and the upper end of the electric conveying belt is further provided with a guide piece, a clamping piece and a driving mechanism; the guiding piece is composed of a first V-shaped plate and a second V-shaped plate. The clamping piece comprises a first clamping block and a second clamping block which are oppositely arranged front and back, and balls are rotationally arranged on the inner wall of the first clamping block and the inner wall of the second clamping block and used for being in rolling connection with ball grooves in the outer wall of the bearing inner ring. Due to the rolling characteristic of the balls, the positions of the balls and the outer surface of the bearing inner ring can be self-adaptively adjusted after the balls make contact with the ball grooves, so that the bearing inner ring can be more accurately positioned in the center positions of the first clamping block and the second clamping block, and the situation that the bearing inner ring deflects and is uneven in stress in the clamping process can be avoided; and the measurement accuracy is improved.
Owner:YANGZHOU KANGPEIER MASCH TECH CO LTD
Support for three-dimensional laser scanning measurement
ActiveCN222543384UImprove measurement efficiencyImprove measurement qualityUsing optical meansStands/trestlesMeasuring instrumentLaser scanning
The utility model belongs to the technical field of surveying and mapping, and discloses a support for three-dimensional laser scanning measurement, which comprises a main rod body and an adjusting sleeve, the two ends of the main rod body are both provided with mounting screw ports, the bottom screw port is used for mounting a three-dimensional laser scanner, the top screw port is used for mounting a GPS / RTK measuring instrument, the adjusting sleeve sleeves the outer part of the main rod body, and the adjusting sleeve sleeves the outer part of the main rod body. A supporting foot stool is movably connected to the outer wall of the main rod body, and an adjusting mechanism is fixedly connected to the top end of the adjusting sleeve and used for controlling the main rod body to slowly slide in the adjusting sleeve. During use, the geodetic coordinate position is obtained through the GPS, the three-dimensional size of a measured object is obtained through the three-dimensional laser scanner, the measurement efficiency and quality can be effectively improved, stable erection can be achieved through the arrangement of the supporting foot stool, the main rod body can drive the instrument to slowly and stably ascend and descend through the arrangement of the adjusting sleeve and the adjusting mechanism, and the measurement accuracy is improved. And the use stability of the instrument is further improved.
Owner:SHANGHAI SAIHUA INFORMATION TECH CO LTD
Method, system and device for realizing flatness measurement processing of broadband signal receiver based on quadrature modulation and demodulation, processor and medium
PendingCN119535504AAdapt to strict requirementsimprove accuracySatellite radio beaconingFast Fourier transformQuadrature modulation
The invention relates to a method for realizing flatness measurement processing of a broadband signal receiver based on quadrature modulation and demodulation. The method comprises the following steps: generating and transmitting a single-carrier quadrature modulation signal; intercepting a section of digital baseband signal; demodulating the orthogonal modulation signal, and extracting a constellation point data sequence; performing reference point judgment; performing fast Fourier transform on the constellation point data sequence and the reference point sequence; obtaining frequency domain error data in a plural form; gaussian smoothing filtering is applied. According to the method, the system, the device, the processor and the computer readable storage medium for realizing flatness measurement processing of the broadband signal receiver based on quadrature modulation and demodulation, synchronous evaluation of amplitude and phase flatness of the broadband signal receiver is realized through one-time measurement, and the method, the system, the device and the processor have the characteristics of high efficiency and high speed; according to the method, the time required for flatness measurement is shortened, the measurement efficiency is improved, the method has the advantages of being comprehensive and accurate, the amplitude and flatness information of the broadband signal receiver can be obtained at the same time, and more comprehensive performance evaluation is provided.
Owner:TRANSCOM INSTR
Wind power bearing tooth jump measuring device
ActiveCN119618023AImprove stabilityImprove versatilityWork holdersMechanical measuring arrangementsHydraulic cylinderFixed frame
The invention relates to the field of wind power bearing tooth jump testing, and discloses a wind power bearing tooth jump measuring device which comprises a workbench, the lower surface of the workbench is fixedly connected with a fixed frame, the lower surface of the fixed frame is fixedly connected with a hydraulic cylinder, and the output end of the hydraulic cylinder is fixedly connected with a movable disc. A first supporting plate is fixedly connected to the upper surface of the movable disc, a transmission plate is rotatably connected to the outer wall of the first supporting plate, a second supporting plate is rotatably connected to the outer wall of the transmission plate, a guide block is fixedly connected to the upper surface of the second supporting plate, and a cross-shaped sliding frame is slidably connected to the outer wall of the guide block. The movable disc drives the plurality of transmission plates to move, the transmission plates push the guide blocks to slide, and then the fixed columns drive the positioning arc blocks to position the inner diameter of the gear ring, so that the gear rings of different sizes are positioned, and it is ensured that the gear rings do not deviate or shake in the measuring process. Therefore, the effect of improving the stability and universality of measurement is achieved.
Owner:JIANGYIN HENGRUN TRANSMISSION TECH CO LTD
Deep learning-based railway track vertex cloud data extraction method and system
The invention discloses a railway track vertex cloud data extraction method and system based on deep learning. The method comprises the following steps: classifying track point cloud data by using a point cloud network enhanced multi-scale classification model to obtain a track key component point cloud classification data set; rail head point cloud data are extracted from the rail key component point cloud classification data set, center line fitting is carried out, a rail head center line is generated, and a reference point is selected on the rail head center line; a rolling window method is adopted, and a plurality of slices are generated along the rail head center line according to the reference points; and carrying out rail top point extraction on the plurality of slices to obtain a continuous rail top coordinate point set. The system comprises a data classification module, a rail head center line generation module, a slice generation module and a rail vertex extraction module. The rail top data extraction efficiency can be improved, the data accuracy and the rail safety are ensured, and scientific maintenance and management of the railway rail are facilitated.
Owner:RAILWAY CONSTR RES INST OF CHINA ACAD OF RAILWAY SCI CO LTD +2
V-shaped groove guide rail on-machine machining measurement system and method thereof
PendingCN119589563Areduced conversion timeImprove measurement efficiencyGrinding feed controlGrinding machinesMachineGrinding wheel
The invention relates to the technical field of on-machine measurement control, and discloses a V-shaped groove guide rail on-machine machining measurement system and method. The control end of the measuring body is connected to the driving end of a machine tool through a controller, and the measuring end of the measuring body and a grinding wheel of the machine tool are placed in a V-shaped groove of a guide rail to be measured in parallel. The measuring body comprises a sensor and two groups of contraction measuring rod assemblies; the two groups of contraction measuring rod assemblies are correspondingly arranged at the two ends of the sensor respectively and are connected to the control end of the controller through the sensor; and the measuring ends are measuring balls arranged at the end parts of the two groups of telescopic measuring rod assemblies. According to the invention, through integration of measurement and processing functions, real-time measurement can be carried out without interruption of the processing process, so that the overall efficiency of measurement and processing is significantly improved. By means of the mode of measuring and machining at the same time, the conversion time between measuring and machining in a traditional method is shortened, and the production process is accelerated.
Owner:XI AN JIAOTONG UNIV
Measurement system and method for deformation coordination capability of pressure-resistant cabin section model platform
PendingCN119533983Aimprove securityImprove stabilitySustainable transportationStructural/machines measurementStructural engineeringMechanical engineering
The invention provides a system and method for measuring the deformation coordination capability of a pressure-resistant cabin model platform, and the system comprises a measurement reference which is a steel wire, the steel wire is horizontally disposed above a to-be-measured cabin model platform and is parallel to the to-be-measured cabin model platform, and the to-be-measured cabin model platform is provided with a plurality of measurement points. According to the method, the measurement precision and efficiency can be effectively improved, and the actual application requirements of the pressure-resistant cabin section model platform can be better met.
Owner:CHINA SHIP DEV & DESIGN CENT
Large thin-walled workpiece measuring method and system based on structured light scanning and electromagnetic ultrasound
ActiveCN119618104Aincrease diversityimprove accuracyUsing subsonic/sonic/ultrasonic vibration meansUsing optical meansUltrasonic thickness measurementPoint cloud
The invention provides a large thin-walled workpiece measuring method and system based on structured light scanning and electromagnetic ultrasonic. The method comprises the steps that 1, a structured light camera and an electromagnetic ultrasonic thickness measuring module are integrated; 2, synchronizing and calibrating the structured light camera and the electromagnetic ultrasonic thickness measurement module before measurement; 3, taking the wall thickness data and the point cloud data as input, carrying out data preprocessing and data fusion, and outputting a high-precision fused point cloud; step 4, designing functions of a control unit according to different measurement workpieces and measurement scenes; and 5, displaying a result on a user interface and providing a corresponding interaction function. According to the method, the structured light camera and the electromagnetic ultrasonic thickness measurement technology are combined, high-precision three-dimensional reconstruction of the large thin-walled part is achieved, external point cloud information and internal wall thickness data can be obtained at the same time, measurement comprehensiveness and accuracy are remarkably improved, and product quality evaluation is more reliable.
Owner:SHANGHAI JIAOTONG UNIV +1
Mold size measuring device and method for vehicle lamp injection mold processing
InactiveCN119618067Aavoid mobilityavoid vibrationWork holdersUsing optical meansPoint lightMechanical engineering
The invention discloses a mold size measuring device and method for vehicle lamp injection mold processing, and relates to the technical field of mold size measurement. The mold size measuring device and method for vehicle lamp injection mold machining comprises an image measuring instrument body used for measuring the size of a vehicle lamp groove formed in a mold body, an annular light source installed on the image measuring instrument body and used for illumination, a point light source and a displacement sensor. The image measuring instrument body is provided with an adjusting assembly used for changing the inclination angle of the mold body, and the adjusting assembly comprises a sliding column which is fixed to the top of the positioning rod to drive the inclination angle of the mold body to be changed, so that the light source irradiates the interior of the vehicle lamp groove from multiple directions. According to the invention, shadow areas generated by single-angle irradiation of the light source are reduced or eliminated, which is helpful for obtaining clearer and more complete images, thereby improving the accuracy of measurement results, and improving the measurement efficiency and precision.
Owner:HANGZHOU KAIMEI MOLD
Non-contact pig body size estimation method and device based on multi-position camera
PendingCN119672088Aeasy to deployHigh precisionImage analysisBiological modelsCamera imageAnimal science
The invention relates to the technical field of live pig body size measurement, in particular to a non-contact pig body size estimation method and device based on a multi-position camera. The method comprises the following steps: firstly, acquiring back and side images of a pig through a multi-position camera, generating a standardized data set, then carrying out live pig attitude detection by utilizing an improved YOLOv11 model, screening out an image with an ideal attitude by introducing a deformable convolution and adaptive spatial feature fusion module, and carrying out real-time detection on the attitude of the live pig. Secondly, accurately positioning key point pixel coordinates related to the pig body size by using an HRNet key point positioning model, calibrating and correcting camera image distortion through internal and external parameters, calculating a conversion factor of pixels and actual size, and finally converting the pixel distance of the key points into actual body size data. According to the method, the multi-camera layout and the deep learning technology are combined, high-precision, automatic and stress-free pig body size measurement is realized in a complex breeding environment, and an efficient solution is provided for large-scale breeding and pig health management.
Owner:INST OF ANIMAL SCI & VETERINARY HUBEI ACADEMY OF AGRI SCI
Large-depth hydrophone amplitude response measurement method based on deep sea environment noise field depth distribution
ActiveCN119573858ARealize simultaneous measurementaccurate measurementVibration measurement in fluidDesign optimisation/simulationEnvironmental noiseHydrophone
The invention discloses a large-depth hydrophone amplitude response measurement method based on deep sea environment noise field depth distribution, and the method comprises the steps: receiving a field measurement result of a noise spectrum level through matching a calibrated hydrophone or a standard hydrophone under low pressure, and carrying out the measurement of the amplitude response of a large-depth hydrophone based on a noise field modeling result of a marine environment parameter and a sound field model in a measurement period; the noise field full-depth distribution rule of the tested sea area is obtained, then the difference value between the noise field full-depth distribution rule and the actual measurement result of the hydrophone to be tested is calculated, the difference value is compensated to the amplitude response nominal value of the hydrophone to be tested, and the amplitude response of the hydrophone to be tested in the large-depth environment can be obtained. The invention provides a new way for obtaining the sensitivity of the hydrophone in a deep-sea large-depth environment.
Owner:NORTHWESTERN POLYTECHNICAL UNIV
Intelligent concrete test piece size measuring device
ActiveCN119665827AImprove stabilityGuaranteed stabilityAngles/taper measurementsWork holdersRotary stageSynchronous detection
The invention relates to the technical field of vision measurement, in particular to an intelligent concrete test piece size measuring device which comprises a shell, a focusing mechanism is mounted on one side in the shell, the shell is adjustably connected with a scanner through the focusing mechanism, a rotating table is mounted on the other side in the shell, and the rotating table is adjustably connected with the scanner through the focusing mechanism. According to the device, the position of a test piece can be corrected before measurement, the test piece can be dynamically limited in the detection process, the measurement deviation is effectively reduced, the test piece can be pre-measured, mechanical measurement and visual measurement are effectively combined, and the measurement accuracy is improved. The double detection of the test piece is realized, the effectiveness of the alignment and focusing work of the scanner is ensured, the measurement precision is greatly improved, the synchronous detection of multiple groups of concrete test pieces can be realized from two levels of machinery and vision, and the measurement precision is ensured while the measurement efficiency is improved.
Owner:HEBEI CONSTRUCTION GROUP CO LTD
Heating pressure control type crustal stress measuring device and method
PendingCN119573943AImprove measurement efficiencyReduce cost of measurementMaterial strength using tensile/compressive forcesApparatus for force/torque/work measurementTemperature controlMeasurement cost
The invention provides a heating pressure control type ground stress measuring device and method, and the device comprises a derrick arranged right above a hole, the derrick is connected with a central connecting rod through a traction cable, a pulley block and a winch, the tail end of the bottom of the central connecting rod is provided with a unit testing barrel, and the middle part of the central connecting rod is provided with a miniature vibration motor; and the stress sheet in the unit test barrel is connected with the sensor, the dynamic strain acquisition instrument and the computer controller through the three-core shielding wire. According to the device, the stress can be adjusted through temperature control, the mode that the linear expansion coefficient of heated aluminum metal particles is high is innovatively adopted as a power source instead of external large pressurization equipment, the measurement cost is effectively saved, the problem of pressure leakage of a fracturing section is avoided, the measurement scale is reduced, and the measurement accuracy is improved. And the measurement efficiency of the ground stress is improved.
Owner:CHINA THREE GORGES UNIV
Laser measuring device for tunnel deformation
ActiveCN119665846Aeasy to moveImprove measurement efficiencyUsing optical meansHydraulic cylinderStructural engineering
The invention discloses a laser measurement device for tunnel deformation, which belongs to the technical field of tunnel deformation measurement and comprises a sliding rail longitudinally arranged along one side of a tunnel, a sliding seat in sliding fit with the sliding rail, a vertical telescopic rod mounted on the sliding seat and a telescopic detection device mounted at the output end of the upper part of the vertical telescopic rod, the sliding seat can move in the longitudinal direction of the tunnel, and the vertical telescopic rod can drive the telescopic detection device to move in the vertical direction; the telescopic detection device comprises a hydraulic cylinder, a near-end supporting plate, a far-end supporting plate and a plurality of groups of fork rod assemblies arranged in the transverse direction, each fork rod assembly is formed by hinging a first fork rod and a second fork rod in the middle, and the upper end of the upper group of first fork rod and the upper end of the lower group of second fork rod are hinged to form an upper hinge point; and the lower ends of the upper group of second fork rods are hinged with the lower ends of the lower group of first fork rods to form lower hinge points. The device can meet the large-scale monitoring requirement in the tunnel, and the measurement efficiency is high.
Owner:SOUTHWEST JIAOTONG UNIV
Earthwork construction quantity metering method and system based on structured light vision measurement
ActiveCN119665811AHigh measurement accuracyImprove measurement efficiencyPosition fixationUsing optical meansUltra-widebandMeasurement device
The invention discloses an earthwork construction quantity metering method based on structured light vision measurement. The earthwork construction quantity metering method is based on a measuring device composed of a line structured light sensor and a multi-label ultra-wideband positioning subsystem. The method comprises the following steps: acquiring a three-dimensional coordinate of an ultra-wideband base station in a construction area coordinate system; three-dimensional coordinates of the earthwork slope contour are obtained; performing real-time conversion relation calculation on the coordinate system of the linear structured light sensor and the coordinate system of the construction area to obtain a conversion matrix; the coordinates of the earthwork slope contour and the conversion matrix are converted into coordinates under a construction area coordinate system; the method comprises the following steps: before and after earthwork construction, scanning an earthwork slope by adopting a measuring device to respectively obtain all coordinate point sets on an earthwork outline; and for all coordinate point sets on the earthwork contour, obtaining a volume difference in a least square fitting mode, and taking the volume difference as the earthwork volume change in the current construction process. According to the invention, direct measurement of the earthwork slope contour is realized through three-dimensional reconstruction, and the high-precision measurement effect of the earthwork position in the area is improved.
Owner:CHINA RAILWAY CONSTRUCTION ENGINEERING GROUP +3
Measuring device for axle box body pull rod seat of harmonious locomotive
PendingCN119533285Aaccurate measurementRealize measurementUsing optical meansFree rotationBall bearing
The invention provides a harmonious locomotive axle box body pull rod seat measuring device, which relates to the technical field of locomotive framework detection and comprises an ejector rod positioning mechanism, a rotatable pneumatic three-jaw chuck, a laser limiting distance measuring module and a stepping lead screw module which are arranged on a bottom plate. A linear guide rail is mounted at the bottom of the ejector rod positioning mechanism, so that the ejector rod positioning mechanism linearly moves in the Y-axis direction, and the ejector rod positioning mechanism is perpendicular to the X-axis where the stepping lead screw module moves, so that the rotatable pneumatic three-jaw chuck can be accurately positioned to the center of an inner hole of the axle box; a thrust ball bearing is mounted at the bottom of the rotatable pneumatic three-jaw chuck, so that free rotation of the pneumatic three-jaw chuck is guaranteed; the laser limiting distance measuring module comprises a measuring module and an infrared limiting module. The axle box pull rod seat dimension measuring device can accurately and efficiently measure the dimension of the axle box pull rod seat.
Owner:CRRC DALIAN CO LTD
Wafer flatness measuring device and method
ActiveCN119581391Aavoid warpingavoid noiseFouling preventionSemiconductor/solid-state device testing/measurementSuction forceWafer
The invention discloses a wafer flatness measuring device and method, and particularly relates to the technical field of semiconductors, the wafer flatness measuring device comprises a first main body and a second main body, the first main body is internally provided with a moving mechanism and a measuring mechanism, the second main body is internally provided with a feeding device, and the moving mechanism is provided with a fixing mechanism. Through the arrangement of the plugging plate, the plugging plug, the sealing plate and other structures, air flow in the negative pressure hole corresponding to the adsorption groove which is not covered by the to-be-tested wafer can normally flow, the plugging plate and the plugging plug in the corresponding valve body can continue to move downwards, and the plugging plug can be inserted into the sealing plate to realize sealing and sleeving; the negative pressure air flow cannot continue to circulate, impurities in the air are prevented from entering the negative pressure cavity through the negative pressure hole under the action of the suction force, the influence of dust accumulation on the normal work of the external air supply device and the negative pressure suction cup is avoided, the warping phenomenon of the wafer to be measured in the measurement process caused by the reduction of the suction force is avoided, and the measurement precision is improved.
Owner:ZHEJIANG LISHUI XIN WAFER SEMICON TECH CO LTD
Device for measuring thickness of paperboard
ActiveCN222635369URelieve stressImprove accuracyMechanical thickness measurementsPaperboardStructural engineering
The utility model provides a device for measuring the thickness of a paperboard, which relates to the technical field of paperboard measurement and comprises a concave frame, a measuring structure is arranged in the middle of the top of the concave frame, fixed vertical plates are fixedly connected to two sides of the top of the concave frame, and a connecting transverse plate is fixedly connected between the tops of the fixed vertical plates. Meanwhile, a bearing supporting frame is fixedly connected to the bottom of the connecting transverse plate, guide grooves are formed in the two sides of the bearing supporting frame, a movable belt frame is arranged on the outer side of the bearing supporting frame, guide sliding blocks are fixedly connected to the two sides of the top of the movable belt frame, and the guide sliding blocks are installed in the guide grooves in an attached and sliding mode; the bottom of the movable belt frame is fixedly connected with a connecting plate, a sliding supporting hole is formed in the middle of the connecting plate, and through the arrangement of a measuring structure and a pressure sensor, the pressure of a pressing plate on a paperboard is uniform, the problem that the pressure is too large or too small is avoided, the measurement accuracy is improved, meanwhile, the labor cost is reduced, and the measurement efficiency is improved.
Owner:CANGZHOU FENGMAI PACKAGING MACHINERY MANUFACTURING CO LTD
Device and method for measuring roller end distance and bending amount of stranded rope pre-deformer
PendingCN119594834AEasy to measureEasy to operateMechanical clearance measurementsMechanical solid deformation measurementsMeasuring rulerWire rope
The invention belongs to the technical field of steel wire rope manufacturing, and provides a device and method for measuring the roller end distance and the bending amount of a stranded rope pre-deformer. The roller end distance measuring assembly comprises a starting point limiting piece fixedly connected to the transverse main plate and an end point limiting piece slidably connected to the transverse main plate, and a distance measuring piece is further arranged on the transverse main plate and used for measuring the distance between the starting point limiting piece and the end point limiting piece; the starting point limiting piece, the terminal point limiting piece and the distance measuring piece are respectively arranged corresponding to the first wire guide roller rotating shaft and the second wire guide roller rotating shaft; the bending amount measuring assembly comprises a longitudinal measuring ruler, the longitudinal measuring ruler is connected to the transverse main plate in a sliding mode through a position adjusting piece, the longitudinal measuring ruler is perpendicular to the transverse main plate, and the longitudinal measuring ruler is used for measuring the distance between a rotating shaft of a middle wire guide roller and the distance measuring piece. According to the invention, the efficiency and the precision of measuring the roller end distance and the bending amount of the stranded rope pre-deformer can be improved.
Owner:JULI SLING STOCK CO LTD
Tree structure data identification method, device and equipment and storage medium
PendingCN119600423AImprove measurement efficiencyImage enhancementImage analysisPattern recognitionImaging processing
The invention relates to the field, in particular to a tree structure data identification method and device, equipment and a storage medium. The method comprises the following steps: firstly, identifying pixel point coordinate data of a tree on a streetscape image, then identifying depth data of the tree, and obtaining an actual distance between the tree and acquisition equipment of the streetscape image based on the depth data; and finally, obtaining the structure data of the tree according to the actual distance and the pixel point coordinate data. The structure data of the tree is calculated based on the image processing technology, field measurement is not needed, and therefore the measurement efficiency of the structure data of the tree is improved.
Owner:SHENZHEN UNIV
Flatness measuring device for highway asphalt pavement maintenance
PendingCN119553579AImprove measurement efficiencyeasy to observeRoads maintainenceArchitectural engineeringStructural engineering
The invention relates to the technical field of pavement flatness detection, and discloses a flatness measuring device for highway asphalt pavement maintenance, which comprises a frame body, the angle deviation assembly is used for displaying the gradient of the road surface; the measuring assembly is used for carrying out depression measurement and marking on the road surface; the measuring assembly comprises a measuring marking assembly and an inclined marking assembly. According to the flatness measuring device for road asphalt pavement maintenance, through the arranged measuring assembly, double measurement of the depression and the gradient of a road asphalt pavement can be achieved, the depression and the gradient of the road asphalt pavement can be automatically marked, and then the pavement is maintained according to the marked position, so that the overall pavement measuring efficiency is improved; a road section diagram does not need to be made, observation by naked eyes is not needed, mobile detection of equipment is directly utilized, marking is carried out, measurement of measurement personnel is facilitated, and observation and maintenance of subsequent maintenance personnel are also facilitated.
Owner:YANAN HIGHWAY BUREAU
Liquid sample multi-parameter measurement system and method based on ultrasonic technology
PendingCN119643693AImprove measurement efficiencyavoid cumbersomeAnalysing fluids using sonic/ultrasonic/infrasonic wavesTemperature controlUltrasound techniques
The invention discloses a liquid sample multi-parameter measurement system and method based on an ultrasonic technology, the system comprises a measurement water tank and a constant temperature control device used for controlling the temperature in the measurement water tank, the side wall of the measurement water tank is provided with a first clamping position, and the first clamping position is cooperatively provided with a transducer fixing device; a second clamping position is arranged on the inner wall of the measuring water tank, a sample box is installed on the second clamping position in a matched mode, during use, a liquid sample to be measured is contained in the sample box, two ultrasonic transducers are symmetrically fixed to the transducer fixing device, and the ultrasonic transducers are perpendicular to the surface of the sample box; the ultrasonic transducer is connected to the ultrasonic pulse transmitting and receiving module, the ultrasonic pulse transmitting and receiving module is connected to the data acquisition card, the data acquisition card is connected to the upper computer, and a calculation software module is arranged in the upper computer. And the upper computer is used for controlling the constant temperature control device, the ultrasonic pulse transmitting and receiving module, the data acquisition card and the calculation software module.
Owner:SHAANXI NORMAL UNIV