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40results about How to "Measurement stability" patented technology
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A tool for measuring the swing distance of a tilt test
ActiveCN224340950USolve the problem of inaccurate offset distance measurementThe combination structure is simple and feasibleMechanical measuring arrangementsIncline measurementSimulationControl theory
The utility model discloses a kind of tool of inclination test swing distance measurement, wherein, tool of inclination test swing distance measurement includes pendulum and guide pipe, pendulum and guide pipe are connected by first cycloid, level pointer is provided on guide pipe, the pointing direction of level pointer is perpendicular to the central axis of guide pipe;Tool further includes test box body, test box body is provided with test liquid, upper cover is provided with guide port, the edge of guide port is provided with scale, pendulum can enter test box body inside via guide port, until being completely immersed by test liquid, at this time, level pointer and scale overlap intersection, when test box body is inclined, level pointer and scale can read out swing distance.The tool of inclination test swing distance measurement can accurately read swing distance, solve the problem of inaccurate measurement according to cycloid offset distance directly in traditional method, when testing, pendulum is completely immersed by test liquid, and damping effect makes measurement more stable.
Owner:SHENZHEN BRANCH CHINA NAT OFFSHORE OIL CORP +2
Echo depth sounder for ship sailing in ice region, installation structure of echo depth sounder and ship provided with echo depth sounder
The invention discloses an ice sailing ship. The present invention relates to a ship for sailing in an ice region, comprising: a skeg formed at the lower part of a stern; and the echo depth finder is arranged on the skeg and is configured to emit ultrasonic pulses to the seabed, receive the ultrasonic pulses reflected back from the seabed and calculate the depth of the seabed based on the time required for returning the ultrasonic pulses.
Owner:HANWHA OCEAN CO LTD (KR)
A workpiece inner cone theoretical diameter drop gauge
ActiveCN224285750UGuaranteed accuracyGuarantee stabilityMechanical diameter measurementsMechanical componentsUniversal joint
This utility model belongs to the technical field of mechanical parts inspection tools, and relates to a workpiece inner cone theoretical diameter difference gauge. It includes a base, a reference seat and a measuring frame on the base. The measuring frame includes a support column, a cylinder, a measuring frame pressure plate, and a guide positioning mandrel. The support column is mounted on the base, and the cylinder is mounted on the support column. The measuring frame pressure plate is connected to the cylinder via a universal joint. The guide positioning mandrel is located at the center of the measuring frame pressure plate. The outer diameter of the measuring frame pressure plate is the same as the theoretical outer diameter of the workpiece. The guide positioning mandrel has a conical guide surface adapted to the inner cone of the workpiece. This utility model, through precise structural design and positioning method, uses the workpiece reference surface as the positioning reference, uses the measuring frame pressure plate to locate the theoretical diameter of the workpiece's conical inner hole, and measures the distance from the circumference of this theoretical diameter to the end face of the reference seat using an indicator. This improves the stability and accuracy of the measurement, is easy to operate, and saves labor.
Owner:YANTAI AXLETREE PRECISION INSTR CO LTD
Three-dimensional reconstruction method and system based on frequency domain phase consistency and multi-cue fusion
PendingCN122694947ASolve industry problemsMeasurement stability
The application discloses a three-dimensional reconstruction method and system based on frequency domain phase consistency and multi-cue fusion, and relates to the technical field of three-dimensional reconstruction. The method comprises the following steps: collecting images of a target semiconductor packaging structure, forming a focus stack, setting analysis parameters, extracting four-dimensional depth cues from three dimensions of a frequency domain, a time domain and a space domain in parallel, obtaining a four-dimensional cue matrix, tracking time sequence peaks of each cue in the four-dimensional cue matrix pixel by pixel, performing sub-pixel fitting, fusing the fitted four-dimensional cues through Bayesian maximum a posteriori probability estimation, generating a coarse depth map and a confidence map, performing Markov random field space regularization optimization to generate an optimized depth map, adaptively smoothing the optimized depth map based on the fused confidence map, and generating a three-dimensional depth map and a full-focus image. The application can provide an efficient, stable and engineerable new technical path for three-dimensional online detection of wafer-level advanced packaging.
Owner:BEIJING BOVISION TECH CO LTD
Rail brace facade measuring vernier caliper
Owner:CHINA RAILWAY BAOJI BRIDGE (NANJING) CO LTD +1
A pectinate combing machine
This utility model discloses a netball and badminton large coil string shearing machine, including a workbench. Four legs are fixedly installed at the bottom of the workbench, and two large coil string supports are fixedly installed at the top of the workbench. Netball and badminton large coil strings are movably installed between the two supports via positioning pins. Two support rods are fixedly installed at the top of the workbench, and an anti-skip string device is movably installed at the top of each support rod. A meter counter and a meter display are fixedly installed at the top of the workbench, and a fixed plate is fixedly installed at the top of the workbench. A support frame is fixedly installed on one side of the fixed plate, and a rotator is fixedly connected to one side of the support frame. One end of the rotator's movable shaft passes through the support frame and is fixedly connected to a take-up reel. This netball and badminton large coil string shearing machine solves the problem of stringers often relying on rulers during the stringing process, which easily leads to string tangling, greatly improving the stringer's work efficiency.
Owner:杨硕涛
Torque testing tool and testing method
PendingCN121762102AEasy extractionaccurate measurementMeasurement of torque/twisting force while tighteningWork measurementPhysicsPower output
The invention belongs to the technical field of oil and gas equipment, and discloses a torque test tool and a test method. The torque testing tool comprises a first transmission piece and a second transmission piece which are connected with each other, the first transmission piece is provided with a sensing section located between the clamping section and the connecting part, and the sensing section is provided with a measuring unit. The torque measuring method comprises the following steps: connecting the two transmission pieces in a threaded manner; the first clamping section and the second clamping section are respectively clamped by a clamping assembly of the spinning equipment; the power output part drives the clamping assembly to perform spinning operation, so that the first transmission piece rotates relative to the second transmission piece; the torque generated by rotation between the first transmission piece and the second transmission piece is measured through a measuring unit arranged on the sensing section. The measuring unit is arranged on the sensing section outside the clamping area, interference of clamping deformation on measurement is effectively isolated, accurate and stable measurement of dynamic torque under the real spinning working condition is achieved, and the device and the method are particularly suitable for torque testing scenes of equipment with compact upper and lower clamping assembly spacing such as iron roughneck and the like.
Owner:HUNAN SANY PETROLEUM TECH
Novel optical fiber macrobend testing device
ActiveCN224095368UGuaranteed test efficiencyGuaranteed test accuracyOptical apparatus testingFiberEngineering
The utility model relates to the technical field of optical fiber macro-bending testing, and discloses a novel optical fiber macro-bending testing device which comprises a supporting plate, a sliding plate block and a fixed plate block, the U-shaped wheel is rotationally connected to the upper surfaces of the sliding plate block and the fixed plate block; and the fixed clamp assembly is arranged on the upper surfaces of the sliding plate and the fixed plate, and the surface of the fixed plate is connected with a limiting sliding block. According to the novel optical fiber macrobend testing device, one end of a tested optical fiber is fixed on the right side fixing clamp assembly, the remaining part of the optical fiber is wound around the U-shaped wheel close to the fixing clamp assembly, then the optical fiber is pulled to the U-shaped wheel at the topmost end in the middle to be wound around, and the optical fiber is pulled to the U-shaped wheel close to the left side fixing clamp assembly all the time; finally, the optical fiber penetrates through the fixing clamp assemblies to be fixed, the sliding plate block is pushed, the remaining optical fiber is slightly loosened along with pushing of the sliding plate block to be attached to the limiting sliding block, and the optical fiber is fixed to the fixing clamp assembly on the left side.
Owner:SICHUAN TONGGUANG CABLE CO LTD +3
Precise detection tool for size of refrigerator stamping part
ActiveCN224189123UStable dimension measurementMeasurement stabilityMechanical clearance measurementsSurveying instrumentsIceboxElectric machinery
The utility model relates to the technical field of refrigerator stamping part processing, and discloses a refrigerator stamping part size accurate detection tool, which comprises a bottom plate, the upper surface of the bottom plate is fixedly connected with a detection table, the inside of the detection table is fixedly connected with a motor I, and the output end of the motor I is fixedly provided with a turntable. The outer wall of the rotating disc is fixedly connected with a sliding column, the outer wall of the sliding column is slidably connected with a sliding plate, the lower surface of the sliding plate is slidably connected with a limiting plate, the interior of the sliding plate is slidably connected with a limiting column, the upper surface of the sliding plate is fixedly connected with a clamping block, and the upper surface of the bottom plate is provided with a measuring assembly. According to the utility model, the rotating disc can be driven to rotate by starting the motor I, and the stamping part body can be stably clamped through the mutual cooperation of the sliding column, the sliding plate, the limiting plate, the limiting column, the clamping block and the stamping part body, so that the stamping part can be kept stable when being subjected to size measurement, and the measurement accuracy is ensured.
Owner:CHUZHOU HUAYAO ELECTRICAL MATERIALS CO LTD
Torque sensor
ActiveCN224216200UIncreased durabilityShorten the axial lengthWork measurementTorque measurementElastomerBearing (mechanical)
The utility model discloses a torque sensor, and belongs to the technical field of sensors. The device mainly comprises a shell, an elastic body, a bearing, a flange base and flange plates, the elastic body is arranged in the shell, and the flange plates are arranged at two ends of the elastic body and used for connecting driving equipment and testing equipment. The nominal torque range of the torque sensor is 0.005 Nm to 20 Nm, the selectable precision grade reaches 0.1% of the full scale, the sensor with the torque smaller than or equal to 2 Nm is provided with a mechanical overload protection structure, the torque sensor has the advantages of being short in axial length, high in torsional rigidity, reliable, durable, easy and convenient to operate and install and the like, and a special version can be provided according to requirements.
Owner:CHANGZHOU RIGHT MEASUREMENT & CONTROL SYST CO LTD
Device and method for fine measurement of deformation field of composite propeller blade
The application provides a device and method for fine measurement of a composite propeller blade deformation field. The device comprises an adjustable height horizontal control console, a horizontal plate, a blade loading point fixing device, a plurality of adjustable length displacement calibration probes, an electronic vernier caliper and a base device, and the like. The measurement method provided by the application realizes fine measurement of the blade deformation field of a composite propeller, can accurately, stably, efficiently and at low cost measure the small deformation amplitude of the composite propeller, thereby providing accurate test data support for simulation calculation, and can be applied to deformation measurement of composite propellers of different types and different scales.
Owner:NAVAL UNIV OF ENG PLA
A method for three-dimensional reconstruction and parameter measurement of complex geometry based on structural constraint
A method for three-dimensional reconstruction and parameter measurement of complex geometric bodies based on structural constraints. By introducing structural prior information in the modeling stage, the geometric constraints are converted into functional dependence between parameters, and combined with continuous and differentiable implicit representation, high-precision reconstruction and stable parameter optimization of complex structure targets are realized. In the presence of noise, local missing or uneven sampling of point cloud data, stable reconstruction and size parameter measurement of complex structure geometric bodies can be achieved. The output parameterized model has structural constraint relationship and can be widely used in precision measurement, industrial detection, reverse engineering modeling and digital manufacturing.
Owner:BEIHANG UNIV
Nozzle type aluminum alloy variable air volume valve
The utility model discloses a nozzle type aluminum alloy variable air volume valve, which particularly relates to the technical field of air valves and comprises two valve plates, two ends of the two valve plates are jointly connected with an air guide component, two blades are mounted between the two valve plates, and a linkage component is connected between the two blades. The two valve plates and the two air guide assemblies jointly form a nozzle structure, a plurality of first air inlets are formed in the inner sides of the ends of the air guide assemblies and jointly connected with a first air inlet cavity, a first air pipe is installed on the outer side of the first air inlet cavity, and a plurality of second air inlets are formed in the inner sides of the middles of the air guide assemblies. The multiple second air inlets are jointly connected with a second air inlet cavity, and a second air pipe is installed on the outer side of the second air inlet cavity. The nozzle type structure designed on the basis of the Venturi effect solves the problems of low precision and easiness in dust accumulation and blockage during differential pressure measurement, and has the advantages of high measurement precision, strong dust accumulation and blockage resistance, accurate air volume regulation and control, high processing efficiency and good product quality.
Owner:JIANGSU XI CHENG ENVIRONMENTAL PROTECTION SCI TECH CO LTD
A scalable distributed multileaf chamber open-path photosynthesis measurement system and method
PendingCN122084829Aachieve precisionAchieve high-throughput unificationMaterial analysisGas analysisOpen path
This invention discloses a scalable distributed multi-chamber open-path photosynthetic measurement system and method, relating to the field of plant physiological and ecological measurement technology. The system includes a main unit and at least two distributed chambers. The main unit centrally manages gas supply, concentration mixing, flow control, and high-precision concentration differential analysis. Each chamber is an independent unit, equipped with an adjustable LED light source, thermoelectric temperature control module, multiple types of sensors, independent power supply, and wireless communication module. An open path is formed through the gas supply pipeline and the return pipeline. The core of the method lies in the main unit polling and sampling the return gas from each chamber according to a preset program through a multi-channel automatic switching valve group. Combined with a "flushing stabilization" strategy, a single gas analysis unit is used to achieve high-precision, high-throughput parallel measurement of multiple chambers. This invention solves the problems of low throughput and high cost of traditional open-path instruments, achieving a balance between high precision and high throughput, and supports in-situ deployment in the field and remote monitoring.
Owner:YANGZHOU UNIV
A method for monitoring the displacement of a target based on laser point cloud
ActiveCN121576923BMeasurement stabilityHigh precisionWave based measurement systemsUsing optical meansPoint cloudLaser scanning
The application discloses a kind of target space displacement monitoring methods based on laser point cloud, it is related to civil engineering operation maintenance technical field, comprising: S1, setting monitoring scheme, arranging strong reflection circular target on structure;S2, utilize laser scanning equipment to emit point cloud to structure, based on reflection intensity characteristic identification and extraction target point cloud;S3, the point cloud data of target is modeled to error, based on inscribed circle fitting, calculate the uniformity of point cloud on spatial distribution;S4, based on error propagation theory, calculate effective acquisition period;All effective measurement datum point coordinates are weighted average, obtain final monitoring coordinate value;S5, compare monitoring coordinate value with historical monitoring data, obtain the spatial displacement variation of structure in different time periods, form displacement time sequence.The application is based on the targeted monitoring idea of laser point cloud reflection intensity characteristic, combined with uniformity test and error propagation theory, realize the high-precision, long-term stable measurement of structure datum point.
Owner:四川高速公路建设开发集团有限公司 +1
An outer diameter detection device
ActiveCN224382455UMeasurement stabilityimprove accuracyMeasurement devicesDiameter measurementMechanical engineering
This application discloses an outer diameter detection device, including a housing, a fixed bracket fixedly connected inside the housing, and two measuring rods respectively connected to the fixed bracket via elastic members. Each measuring rod is connected to an adjusting member between itself and the fixed bracket. Each measuring rod is connected to a corresponding sensing element. A detection probe is connected to the end of each measuring rod furthest from the fixed bracket. The detection probe measures the outer diameter of the shaft-like object to be measured, and is connected to the sensing element. The adjusting member adjusts the relative tension between the two measuring rods and the fixed bracket, thereby adjusting the clamping force between the two measuring rods, allowing the detection probe to perform measurements more stably. The sensing element then detects changes in the distance between the detection probes to obtain the outer diameter measurement result, improving the accuracy of the measurement.
Owner:屠雅琴
Intelligent safety protection electric energy metering box
This application relates to the technical field of electricity metering boxes, and discloses an intelligent safety protection electricity metering box, including a box body with a placement groove on the box body. Multiple receiving grooves are formed within the placement groove, distributed vertically. Floats for floating on the water surface are floating within each receiving groove. A fixing block is provided on the surface of the receiving groove away from the ground, and a fixing groove is formed on the float for the fixing block to insert into. When the fixing block is inserted into the fixing groove, the float does not abut against the groove wall near the ground. When water is immersed in the placement groove, the water can cause the float to float. Furthermore, the vertical distribution of the receiving grooves allows different water levels to cause different numbers of floats to float. Since the floats do not abut against the groove wall near the ground, maintenance personnel can determine the water level by observing the position of the floats, thus allowing staff to choose whether to replace electrical components, achieving the purpose of rapid maintenance.
Owner:SHANGDE UNITED ELECTRIC GRP CO LTD
An adjustable garment size detection device
Owner:HANGZHOU YUEYAO CUSTOMIZED INTELLIGENT TECHNOLOGY CO LTD
A standard nozzle flow setting method for an aeroengine
ActiveCN115219212BImprove measurement efficiencyReliable measurementMachine part testingGas-turbine engine testingAviationMechanics
The application discloses a standard nozzle flow calibration method for an aero-engine, which uses two measured nozzles in a laboratory environment as traceable standards and uses an oil line communicator to connect and calibrate, the oil line communicator is a symmetrical U-shaped pipeline, the middle part is connected with an oil supply pipeline, and the two ends of the U-shaped pipeline are provided with internal thread holes, the flow of the traceable nozzle and the working standard nozzle on the oil line communicator is compared, the relative error is calculated, and the flow value of the working standard nozzle in the simulation laboratory is converted, the application provides a reliable aero-engine fuel nozzle calibration method, the flow of the nozzle can be measured in a non-laboratory environment, the measurement is reliable and stable, and the efficiency of nozzle flow measurement is greatly improved.
Owner:CHINA HANGFA GUIZHOU LIYANG AVIATION POWER CO LTD
Assembly pin shaft preparation checking device
ActiveCN224593851UMeasurement stabilityStable measurement
The utility model relates to the technical field of assembled pin shaft, especially to the preparation and inspection device of assembled pin shaft, preparation and inspection device of assembled pin shaft, including the support plate of concave body shape, the support plate top left and right sides relative opening has the round shape for supporting the placement mouth of pin shaft, the support plate is close to the opening of slide groove of placement mouth, the slide groove is swinged in connection with the fixed base, the fixed base front wall is fixedly connected with the pointer, the support plate is close to the end wall of pointer place and is equipped with the scale mark, when measuring, the fixed base swing in the slide groove, the patch displaces with it, and is close to the pin shaft side wall, reads the position of pointer and scale mark at this moment, obtains the size parameter of pin shaft, and the size parameter is obtained quickly and conveniently, and the pin shaft is contacted with the patch, also makes the pin shaft more stable in the measuring process, and is more stable when measuring.
Owner:JIANGSU LANLI HEAVY IND TECH
A method and apparatus for real-time nonlinear calibration of a single-photon detector
ActiveCN122084130Aovercoming inherent errorHigh precisionInstrumentsICT adaptationPhotovoltaic detectorsPhotodetector
This invention relates to the field of photodetector calibration technology, and more particularly to a real-time nonlinear calibration method and apparatus for a single-photon detector. The method uses a relay circuit to enable the photodetector to simultaneously output an analog voltage signal and a photon pulse signal. Synchronous acquisition of the analog voltage signal and photon pulse signal is achieved through an analog acquisition unit and a photon counting unit. A data processing unit preprocesses the two signals and outputs a nonlinear correction factor curve. The apparatus for executing the above method is also disclosed, which can effectively achieve nonlinear correction of the photodetector under different temperature conditions, ensure the accuracy of photon counting within different dynamic response ranges, and significantly improve the overall performance of the photodetector and measuring instruments.
Owner:CHANGCHUN UNIV OF SCI & TECH
Oral light sensor
This intraoral optical sensor is provided with: a mounting tool that is mounted to the gingiva in the oral cavity; and a light sensor fixed to the mounting tool, the light sensor including one or more light-emitting elements and a light-receiving element, the light-emitting elements being disposed so that the light emitted by the light-emitting elements irradiates the gingiva, the light sensor being disposed so that the light-emitting elements are in close contact with the surface of the tissue in the oral cavity, and the light-receiving element being disposed so that the light-emitting elements are in close contact with the surface of the tissue in the oral cavity. And measuring pulse wave or oxyhemoglobin saturation.
Owner:SCI ENERGY CO LTD +1
Product assembly depth detection device
ActiveCN224230938UEasy to disassembleEasy to installUsing optical meansControl engineeringAgricultural engineering
The utility model provides a product assembly depth detection device, which comprises an adjusting assembly, a support, a lifting mechanism and a detection assembly, the adjusting assembly comprises a first adjusting assembly and a second adjusting assembly, the adjusting directions of the first adjusting assembly and the second adjusting assembly are perpendicular to each other, the first adjusting assembly is fixedly installed at a fixed position, and the second adjusting assembly is fixedly installed at a fixed position. The second adjusting assembly is fixedly installed on the first adjusting assembly, the support is fixedly installed on the second adjusting assembly, the lifting mechanism is fixedly installed on the support, the detection assembly is fixedly installed on the lifting mechanism, the lifting mechanism is used for driving the position of the detection assembly in the Z-axis direction, and the first adjusting assembly is used for adjusting the position of the detection assembly in the X-axis direction. The second adjusting assembly is used for adjusting the position of the detection assembly in the Y-axis direction. The detection device disclosed by the utility model can be quickly adjusted, is convenient for workers to disassemble and assemble, can meet the requirements of an automatic assembly line, and is low in cost.
Owner:天津市中天智能产业研究院有限公司
A crude oil storage tank anti-hanging material liquid level measuring device based on millimeter wave radar
ActiveCN224623815UPromote automatic slidingImprove anti-snag material
This invention provides a crude oil storage tank anti-fouling level measurement device based on millimeter-wave radar, comprising: a stainless steel shell, a signal processing unit, a PTFE inverted hemispherical radome, lead-out wiring, a DC 9-24V power interface, and an RS485 output interface. The signal processing unit is located inside the stainless steel shell and is used to process millimeter-wave radar radio frequency signals. The PTFE inverted hemispherical radome is located at the first end of the stainless steel shell and is fixedly and sealed to the first end of the stainless steel shell, which can effectively prevent oil contamination and promote the automatic sliding of condensate droplets. The second end of the stainless steel shell is provided with lead-out wiring, a DC 9-24V power interface, and an RS485 output interface for power supply and signal transmission. This invention solves the technical problems of traditional level gauges being prone to fouling, having poor anti-interference, and being difficult to maintain in heavy crude oil environments through the synergistic optimization of structural design and radio frequency technology, and achieves high-precision, high-reliability, and low-maintenance level measurement of crude oil storage tanks.
Owner:XIAN SHI DA TONG CHUANG TT&C EQUIP CO LTD
A method for measuring the spatial distribution of the plate separation of a fabry-perot filter based on solar observation
ActiveCN120684995BIncrease the difficulty of installation and adjustmenthigh riskUsing optical meansParallel plateObservation data
This invention discloses a method for measuring the spatial distribution of the Fabry-Perot filter plate spacing based on solar observation, relating to the field of optical technology. The method includes the following steps: constructing an observation optical path so that sunlight, after passing through a lens group to form a telecentric beam, is perpendicularly incident on a Fabry-Perot filter composed of two parallel plates. The beam is then converged to a detector via an imaging mirror. The detector is used to acquire a two-dimensional spatial image of the sun, and the detector pixels correspond one-to-one with the plate areas of the filter. This invention directly utilizes the solar observation optical path during the measurement process, eliminating the need for additional dedicated measurement optical paths and equipment, significantly reducing system complexity, minimizing the risk of errors during equipment installation and debugging, and effectively controlling development costs. The spatial distribution of the plate spacing can be measured synchronously during normal solar observation without interrupting the observation process, enabling real-time monitoring of the Fabry-Perot filter's status and ensuring the continuity and integrity of the observation data.
Owner:YUNNAN OBSERVATORY CHINESE ACADEMY OF SCIENCES
Positioning bending mechanism with scale and segmented bending device for spinal orthopedic rod
ActiveCN121943451APrecise bendingQuantifiable bending operationsInternal osteosythesisSpinal columnApparatus instruments
The invention provides a positioning bending mechanism with a scale and a segmented bending device for a spine orthopedic rod, belongs to the technical field of surgical medical instruments, is used for pre-bending the spine orthopedic rod before an operation, and comprises a base component, a fixed clamping component, a sliding clamping component, a positioning carriage component and a rotary cylinder component, according to the core working principle, the longitudinal position of a bending point is determined through a linear sliding rail and a side ruler of the linear sliding rail, a bending plane is set through an angle adjusting ruler of a rotating cylinder assembly, and the bending displacement amount is preset and monitored in real time through a displacement measuring instrument installed on an adjusting rotating cylinder; during operation, the bending bolt is screwed to push the bending clamping seat to apply pressure to the orthopedic rod until the deformation of the orthopedic rod reaches a preset value; according to the device, preoperative three-dimensional planning is converted into quantifiable operation in three dimensions of linearity, angle and displacement, closed-loop control from measurement positioning to accurate bending is achieved, and the accuracy, efficiency and repeatability of orthopedic rod forming are remarkably improved.
Owner:SHAPINGBA DISTRICT HOSPITAL OF TRADITIONAL CHINESE MEDICINE CHONGQING
A measuring device for tensile test of mechanical properties of castings
ActiveCN224471409UMeasurement stabilityAccurate precision
The utility model discloses a kind of measuring devices for casting mechanical property tensile test, including base, first support, second support and scale, first baffle is vertically provided in the left end of base, first support is provided on the base right side of first baffle, second support is slidably connected with in the right side of first support, third baffle is slidably connected with in the right side of second support, and top bolt is provided on third baffle, scale is provided in the right side of the top of first baffle, second displacement sleeve is slidably connected on scale, measuring rod is provided in the front end of second displacement sleeve. The utility model can effectively solve the problems existing in the conventional test bar elongation test method, such as inaccurate gauge length measurement, unstable test bar placement, etc., significantly improve the accuracy of test bar gauge length measurement and elongation calculation, while reducing the influence of human factors on measurement results, improve the test efficiency, reduce the labor cost and operation time.
Owner:HUI XIAN CITY TENGFEI MASCH MFG CO LTD
Measurement mark tracking method and device based on AI vision
PendingCN121783093Aavoid interferencereal-time measurementNavigation by speed/acceleration measurementsPicture taking arrangementsOphthalmologyComputer vision
The invention belongs to the technical field of AI vision measurement, and particularly relates to a measurement mark tracking method and device based on AI vision, and the device comprises an AI vision perception module, an IMU inertial measurement module, a data fusion calculation module and an execution control module, the visual information acquisition device is deployed on a measurement object; through fusion of AI vision and IMU, interference of complex working conditions such as environment illumination change, dynamic motion blurring, camera motion and mark point blurring on measurement operation is overcome, the problems that single vision tracking is easily interfered by the environment and single IMU tracking has accumulative drifting are solved, real-time, stable and high-precision measurement in the complex environment is achieved, and the measurement precision is improved. The method can effectively adapt to various measurement scenes such as unmanned aerial vehicle inspection, industrial assembly, automatic driving calibration and the like.
Owner:NANJING RUNZHONG TESTING TECH CO LTD
High-temperature-resistant diffuse reflection gas measuring device based on optical waveguide
PendingCN121994754ASimple structureMeasure long termScattering properties measurementsPhotovoltaic detectorsLight beam
The invention discloses an optical waveguide-based high-temperature-resistant diffuse reflection gas measuring device, which comprises a diffuse reflection sheet, a first convex lens, an optical waveguide, an antireflection film optical window, a second convex lens, a collimator and a photoelectric detector, and is characterized in that the diffuse reflection sheet and the first convex lens are fixedly arranged at one end of the optical waveguide and form a TDLAS gas chamber; the anti-reflection film optical window, the second convex lens, the collimator and the photoelectric detector are fixedly arranged at the other end of the optical waveguide, the anti-reflection film optical window is fixedly arranged on the end face of the optical waveguide, a hole is formed in the middle of the second convex lens, the light beam output end of the collimator penetrates through the second convex lens from the hole, and the light beam input end of the collimator is connected with an output optical fiber of the TDLAS laser. The photoelectric detector is located at the light beam input end of the collimator. The high-temperature-resistant diffuse reflection gas measuring device based on the optical waveguide can stably measure gas for a long time under the environment working conditions of high temperature, corrosion, water vapor condensation and the like, and is simple in structure and low in cost.
Owner:BEIJING GUANGGAN HUIZHI TECH CO LTD
A fixed bracket for centering the back wheel of a steam-driven feedwater pump
This utility model relates to the field of dial indicator technology, specifically a fixed dial indicator holder for aligning the backrest wheels of a steam-driven feedwater pump. It includes a support assembly comprising a support frame, a dial indicator rod connected to the side of the support frame, a lower dial indicator hole on the surface of the dial indicator rod, a support rod connected to one end of the support frame, and a fixing hole on the surface of the support rod; and a fixing assembly comprising bolts and locking nuts connected to the surface of the bolts. The fixing assembly directly fixes the dial indicator to the fixed end, ensuring stability during measurement and providing more accurate readings. Simultaneously, the lifting rod allows for height adjustment to accommodate backrest wheels of different sizes.
Owner:FUJIAN HUADIAN ZHANGPING COAL FIRED POWER COMPANYLIMITED