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29results about How to "Eliminate detection errors" patented technology
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Visual detection system for inner side of belt blank weaving
PendingCN119619003AGuaranteed uniformityEliminate detection errorsMaterial analysis by optical meansManufacturing computing systemsImaging processingImaging quality
The invention provides an inner side visual detection system for weaving of a strip blank. The inner side visual detection system comprises an image acquisition module, an image processing module, a control module and an output module, the image acquisition module comprises at least one high-resolution camera, the high-resolution camera and a plurality of groups of adjustable light sources work cooperatively, and by adjusting the intensity, the angle and the direction of the light sources, the visual detection accuracy of the inner side visual detection system is improved. And the illumination uniformity in the image acquisition process is ensured, so that the influence of illumination variation on the image quality is reduced. According to the inner side visual inspection system for strip blank weaving, through an innovative image acquisition and processing technology, the problems that the image quality is unstable and the defect recognition capability is insufficient are remarkably solved. The image acquisition module adopts a high-resolution camera and an adjustable light source to cooperatively work, and the uniformity of images under different environment illumination is ensured by dynamically adjusting the intensity, angle and direction of the light source, so that the influence of external illumination change on the image quality is reduced.
Owner:NANJING ZHONGYU FLOW TECHNOLOGY RESEARCH INSTITUTE CO LTD +1
Municipal road pavement friction coefficient test detection device
ActiveCN222461292UEliminate errorsEliminate detection errorsUsing mechanical meansRoad cleaningWater storageStructural engineering
The utility model discloses a municipal road surface friction coefficient test detection device, which relates to the technical field of friction coefficient detection devices and comprises a detection platform with a long rectangular frame structure, guide rails are symmetrically arranged on long cross beams on two sides of the detection platform, and a driving trolley is slidably mounted on the detection platform through the guide rails. A sweeping mechanism is arranged on the driving trolley; through the arrangement of the driving trolley, the friction block and the detection platform, the design of a water storage cavity in the friction block allows the weight of the friction block to be dynamically adjusted by injecting or extracting water, and through the arrangement of variables capable of being automatically adjusted and controlled, the friction block can be automatically adjusted and controlled. In combination with real-time detection of the weighing device and the tension sensor, the friction coefficient of the road surface can be accurately measured through multiple data by accurately controlling the weight change of the friction block and monitoring the tension change in real time, and errors of a detection result caused by single data are eliminated.
Owner:广东省中勤建筑集团有限公司
Glucometer high-precision detection method based on dynamic calibration algorithm and glucometer
PendingCN121943296AEliminate detection errorsAchieve high-precision blood glucose detectionSensorsBlood characterising devicesBlood glucose metersGlucose detection
The invention discloses a glucometer high-precision detection method based on a dynamic calibration algorithm and a glucometer, and relates to the field of blood glucose detection.The method comprises the steps that modal decomposition is conducted on a blood glucose current signal, the blood glucose current signal is decomposed into a plurality of frequency components, and an effective physiological component and an interference component are separated from the frequency components; performing time sequence feature extraction on the effective physiological component to obtain feature parameters at multiple moments, and performing correlation analysis on the feature parameters at the multiple moments, the environment temperature and the tissue impedance parameter to obtain a fusion feature vector; inputting the fusion feature vector into a parameter calibration model, and outputting a preliminary blood glucose value; a temperature correction coefficient is calculated according to the deviation between the environment temperature and the preset reference temperature, the initial blood glucose value is dynamically adjusted according to the temperature correction coefficient, and a final blood glucose detection value is obtained. By implementing the method, the detection accuracy of the glucometer can be improved.
Owner:BEIJING HUAYI JINGDIAN BIOTECHNOLOGY CO LTD
Flow detection device and method for water supply system
ActiveCN119197660Aeasy to separateprevent rotationVolume meteringVolume/mass flow by dynamic fluid flow effectTurbine bladeWater flow
The invention relates to the technical field of water supply flow detection, and particularly discloses a flow detection device and method for a water supply system, the flow detection device comprises an outer pipe and a magnetoelectric sensor, the magnetoelectric sensor is arranged in the middle of the top end of the outer wall of the outer pipe, and the bottom end of the magnetoelectric sensor extends into an inner cavity of the outer pipe; the polyvinyl fluoride inner pipe is arranged in an inner cavity of the outer pipe, and the bottom end of the magnetoelectric sensor extends into an inner cavity of the polyvinyl fluoride inner pipe. According to the device, after a water supply system stops supplying water, the turbine blade in the turbine flowmeter is braked in time, the flow detection error caused by inertia rotation of the turbine blade after water flow interruption is effectively eliminated, the real-time performance and accuracy of flow data are ensured, and the flow detection accuracy is improved. According to the invention, a reliable decision basis is provided for managers of the water supply system, the problems of resource waste, error cost calculation and the like caused by flow error measurement are avoided, stable operation of the water supply system and legitimate rights and interests of users are guaranteed, and reasonable configuration and utilization of water resources are further optimized.
Owner:SHANDONG HUA YE BUXIUGANG PROD CO LTD
Preparation method of dextran standard substance
PendingCN119574762ATrue Response ContentEliminate detection errorsComponent separationAlcoholMedicine
The invention discloses a preparation method of a dextran standard substance, which comprises the following steps: collecting various process sugar material mixed samples of different sugar refineries, carrying out alcohol precipitation, membrane filtration, column purification and other technical means to obtain a special dextran standard substance for the sugar industry, and comparing the standard substance with a commercially available dextran standard substance, the content of the dextran in a sugar refining sample can be more truly reflected, the actual sugar refining condition can be represented, and the detection error is eliminated.
Owner:INST OF BIOLOGICAL & MEDICAL ENG GUANGDONG ACAD OF SCI
Intensive care restraint device and use method
PendingCN121943546AImprove comfortTake security into considerationRestraining devicesNursing bedsNeurovascular injuryIntensive care
The invention discloses an intensive care restraint device and a use method. The device comprises a sleeve; the lantern ring is fixed outside the sleeve; the annular air bag is fixed in the sleeve; the bandage penetrates through a gap between the inner side of the lantern ring and the outer side of the sleeve; the connecting pipe is fixed on the surface of the sleeve; the air leakage assembly communicates with the surface of the connecting pipe. Through the arrangement of the built-in annular air bag, the annular air bag can uniformly wrap and be attached to the limbs of a patient after being inflated, concentrated binding force of a traditional binding band or a rigid structure is converted into uniform surface pressure provided by the annular air bag, the risk of skin bruise and nerve and blood vessel injury is reduced, the comfort of the patient is improved, the air bag can be conveniently inflated through the inflating assembly, and the air bag is convenient to use. The restraint tightness is accurately adjusted, the restraint effect is ensured to be reliable, quick deflation can be achieved through the deflation assembly, restraint loosening or adjustment can be conveniently and emergently achieved, the overall structural design is reasonable, operation is easy and convenient, and restraint effectiveness, patient safety and clinical nursing convenience are all considered.
Owner:SANYA CENT HOSPITAL (THE THIRD PEOPLES HOSPITAL OF HAINAN PROVINCE)
Gas ring calibration box
ActiveCN224594597UJob benefitsAccurately obtain responsiveness
This utility model relates to the field of gas annular calibration box technology, and discloses a gas annular calibration box, including a calibration box, on which a detector placement module is provided. A support plate is fixedly connected to the concave surface of the detector placement module. A screw is fixedly connected to the support plate via a motor. A moving block is threadedly connected to the screw. Through the design of the angle adjustment component inside the device, the comprehensiveness and accuracy of detection can be effectively improved. Existing technology fixes the detector in a single position, making it difficult to capture the uneven gas concentration distribution inside the annular box. The adjustable angle design allows the detector to contact the delivered gas at different positions during the detection process, simulating the complex scenario of combustible gas leaking from various directions in actual applications. It can accurately obtain the detector's response performance to gas in various directions, avoiding performance misjudgment caused by a single detection direction, and effectively improving the comprehensiveness and accuracy of detection.
Owner:BEIJING YUANHENGLIYE
Novel grating reading head and detection method
PendingCN121898256ARealize in situ detectionEliminate detection errorsUsing optical meansSignal processing circuitsGrating
The invention relates to the technical field of precision displacement measurement, and discloses a novel grating reading head and a detection method.The novel grating reading head comprises a novel grating reading head body and a data output interface, and a grating reading head measuring assembly is arranged on the front face of the novel grating reading head body; the grating reading head measuring assembly comprises a high-power LED photoelectric sensor and a signal processing circuit and is used for measuring infinitesimal displacement and processing signals, and a sensor assembly is arranged on the back face of the novel grating reading head. Integration of miniaturization and multi-dimensional perception of the grating reading head is realized through front and back circuit layout, the photoelectric measurement assembly is arranged on the front of the PCB, the 9DOF, the temperature sensor and the vibration sensor are integrated on the back of the PCB, a traditional huge mechanical adjustment structure and an external sensor scheme are replaced, hardware cost and size are reduced, and meanwhile, the measurement precision is improved. In-situ detection of the state of the reading head body is realized.
Owner:TSINGHUA UNIVERSITY
A multi-wire cutting machine wire bow height automatic adjustment control system and method
ActiveCN112605843BAffect detection accuracyReduce trial production costs
The present invention relates to a multi-wire cutting machine wire bow height automatic adjustment control system and method, the system includes a multi-wire cutting machine, a feeding table, a left sensor, a right sensor and a controller; the feeding table is installed above the multi-wire cutting machine and directly faces the cutting part of the multi-wire cutting machine, and the left sensor and the right sensor are respectively installed on the left and right sides of the feeding table; the left sensor and the right sensor are both electrically connected to the input end of the controller, and the output end of the controller is electrically connected to the feeding table. The present invention uses two left and right sensors to detect the real-time wire bow height of the multi-wire cutting machine, and the controller adjusts the feeding speed of the feeding table through the real-time wire bow height detected by the left sensor or / and the right sensor to realize automatic adjustment and control of the wire bow height of the multi-wire cutting machine, which can reduce the cost of sample trial production, improve the consistency of mass production, reduce the cost of mass production consumables, reduce labor costs, avoid human errors, and improve production efficiency.
Owner:PHASE MOTION CONTROL SOLUTION WUHAN CO LTD
Release force detection equipment for release film
ActiveCN119666735AEliminate detection errorsEliminate wrinklesPlastic recyclingMaterial strength using tensile/compressive forcesMechanical engineeringRelease liner
The invention relates to the technical field of release film physical analysis, in particular to release film stripping force detection equipment which comprises a single-column tension testing machine, an upper clamp, a lower clamp and a steel plate, the upper clamp and the lower clamp are mounted on the single-column tension testing machine, the steel plate is used for bonding release films, and a first extension plate and a second extension plate are fixedly mounted at two ends of the steel plate respectively. A first cavity and a second cavity are formed in the first extension plate and the second extension plate correspondingly, a connecting column is fixedly installed in the first cavity, a first plate is rotatably installed on the top of the connecting column, a transmission part is slidably installed in the second cavity in the length direction of the steel plate, and a sliding column is slidably installed on the top of the transmission part in the width direction of the steel plate. Second plates are rotationally installed at the top ends of the sliding columns. After the two ends of the release film are bonded to the first plate and the second plate respectively, the first plate and the second plate can rotate as long as the blocking piece is driven to be away from the first plate, meanwhile, the second plate moves, and the release film can be automatically driven to be parallel to the length direction of the steel plate.
Owner:常州凯得新材料科技有限公司
Rapid soil nutrient detection method based on Internet of Things
PendingCN121783870AAchieve complementary integrationImprove stabilityMolecular entity identificationCheminformatics data warehousingSoil scienceEnvironmental engineering
The invention discloses a rapid soil nutrient detection method based on the Internet of Things. The method comprises the following steps: S1, acquiring and preprocessing soil multi-modal original data acquired by a sensing network of the Internet of Things; and S2, inputting the preprocessed multi-modal data into a preset analysis model, separating soil nutrient chemical component signals and capturing a correlation dependency relationship among multi-modal characteristics. The invention relates to the technical field of soil nutrient detection. According to the soil nutrient rapid detection method based on the Internet of Things, a multi-modal soil feature data set is formed through cooperative collection of various types of sensors such as spectrum, dielectric response and temperature and humidity, complementary fusion of different information sources is achieved, the stability and accuracy of detection are remarkably improved, a multi-modal feature embedding and attention mechanism model is adopted, and the detection accuracy is improved. Characteristic signals of chemical components of nutrients in soil can be automatically separated, and a nonlinear association relationship among different modes is captured, so that the expression and generalization ability of the model is enhanced.
Owner:黑龙江中诺检验检测有限公司
A microbiological processing workstation
ActiveCN121472026BImprove reliabilitygood repeatabilityBioreactor/fermenter combinationsBiological substance pretreatmentsBiotechnologyMicroorganism
The present application relates to the field of microorganism detection, and specifically to a microorganism processing workstation, comprising a work platform and functional modules arranged on the work platform. The functional modules comprise a plate loading module for storing plates, a sample tube loading module for loading samples, a first mechanical arm for transferring plates and sample tubes from the plate loading module and the sample tube loading module to a streaking station and a cap opening station, a sample pretreatment module comprising a second mechanical arm connected with an inoculation assembly, and under the drive of the second mechanical arm, the inoculation assembly sticks and inoculates bacteria liquid in a sample tube at the cap opening station into a plate at the streaking station, and a plate unloading module for receiving and storing plates transferred from the streaking station. The workstation adopts a framework of mechanical arms and standardized functional modules, and different users can freely add or subtract or combine functional modules according to actual sample processing needs, thereby expanding the application scenarios.
Owner:SUZHOU WANGUIYUAN PRECISION TECH CO LTD
Angular contact bearing protrusion measuring device and measuring method
ActiveCN118602893BReduce contact areaEliminate placement errorsMachine bearings testingMechanical measuring arrangementsMeasurement deviceClassical mechanics
The present invention discloses a device and method for measuring the protrusion of an angular contact bearing, belonging to the technical field of bearings. The device comprises a base, a supporting mechanism and a leveling mechanism; the supporting mechanism comprises a plurality of annularly distributed linear guide rails, a slider and a first fixing device for fixing the slider; the slider is provided with a spherical fulcrum, an eccentric wheel located on one side of the spherical fulcrum and a second fixing device for fixing the eccentric wheel; the spherical fulcrum is used to support the end face of the bearing to be measured, and limit the bearing to be measured from the bottom; the eccentric wheel is used to contact the outer side face of the bearing to be measured, and limit the bearing to be measured from the side; by loosening the first fixing device and moving the slider, the position of the slider on the linear guide rail can be adjusted, and then the diameter of the circle formed by the inner side connecting lines of the plurality of eccentric wheels can be adjusted; by loosening the second fixing device and rotating the eccentric wheel, the distance between the eccentric wheel and the spherical fulcrum can be adjusted to adapt to the measurement of angular contact bearings with different outer diameters and wall thicknesses.
Owner:ZHEJIANG RUIYANG BEARING TECH CO LTD
A method for determining ultra-low carbon and sulfur content in high-purity nickel.
PendingCN122084342AEfficient removalimprove accuracyPreparing sample for investigationMaterial analysis by optical meansSulfate radicalsRelative standard deviation
This invention belongs to the field of metal composition analysis technology and discloses a method for determining ultra-low carbon and sulfur content in high-purity nickel. This method addresses the problems of matrix mismatch and insufficient detection range in existing detection methods by achieving accurate determination through the following steps: 1. Pre-treating the high-purity nickel sample using acetone ultrasonication and hydrochloric acid immersion to remove surface impurities; 2. Preparing a series of reference reagent standard samples using sucrose and sulfate standard solutions to adapt to the high-purity nickel matrix; 3. Constructing a standard curve with dual calibration of solid standard samples and reference reagents, extending the detection range to 0.0005%~0.005% for carbon and 0.0001%~0.002% for sulfur; 4. Subtracting interference through blank experiments and calculating the carbon and sulfur content in the sample according to the formula. The carbon and sulfur spiked recoveries of this invention are 95%~103% and 96%~102%, respectively, with relative standard deviations of <13.2% and <22.0%, respectively. It features fast analysis speed, high accuracy, and traceable results, and is suitable for the detection of ultra-low carbon and sulfur content in high-purity nickel and similar metal materials.
Owner:JINCHUAN GROUP CO LTD +1
Crane sling deflection detection method based on artificial intelligence
PendingCN122149447AReally reflects the actual deflection stateRealize synchronous acquisitionAngle measurementNavigation by speed/acceleration measurementsMultiple sensorData acquisition
The present application relates to the technical field of crane sling deflection detection. The present application relates to a crane sling deflection detection method based on artificial intelligence. It includes the following steps: S1, build a multi-modal perception array, synchronously collect multi-source perception data, the multi-modal perception array contains an industrial camera, an IMU inertial measurement unit, a cart trolley displacement encoder and a wind speed sensor, which respectively obtain real-time image data of the sling, inertial attitude data of the sling, crane walking motion data and on-site wind field environment data; The present application builds a multi-modal perception array composed of an industrial camera, an IMU inertial measurement unit, a displacement encoder and a wind speed sensor, realizes the synchronous collection of multi-source data of the sling image, inertial attitude, crane motion state and on-site wind field environment, breaks through the limitation of single sensor detection in the prior art, and multiple sensors play their respective roles and complement each other's shortcomings, laying a foundation for subsequent high-precision detection from the data collection level.
Owner:TIANJIN SPECIAL EQUIP INSPECTION INST
A method for realizing high-precision linear feed motion of large rotary table of machine tool
ActiveCN115609323BHigh precisionimprove performanceMeasurement/indication equipmentsOther manufacturing equipments/tools
The present invention relates to the manufacturing of mechanical equipment in the field of processing, and specifically to a method for realizing high-precision linear feed motion of a large rotary table of a machine tool. The method is realized through four steps: improving the mechanical precision of the feed shaft of the large rotary table of the machine tool, avoiding thermal deformation based on the structural characteristics of the rotary table, compensating for thermal deformation, and controlling the heat source. The present invention can be applied to vertical and horizontal five-axis machining centers, boring and milling machines, vertical turning and milling composite machining centers, and other types of equipment whose rotary tables can move along linear axes, thereby improving product precision and performance.
Owner:SHENYANG MASCH TOOL (GRP) CO LTD
Detection tool and detection method for quickly detecting key hole site of front shell
PendingCN122041693Aimprove accuracyImprove reliabilityMechanical measuring arrangementsMechanical engineeringRapid detection
The invention discloses a quick detection tool and a detection method for key hole sites of a front shell, and belongs to the technical field of production and manufacturing of front shells of transmissions of M-series models. The measuring tool body is provided with a weight reducing groove and a through hole, the handle is fixed on two sides of the measuring tool body, the first positioning pin seat, the second positioning pin seat and the pin sleeve are fixed in the through hole through bolts, the positioning pin is detachably connected with the first positioning pin seat, the positioning pin is a rhombic pin and detachably connected with the second positioning pin seat, and the measuring rod penetrates through the pin sleeve in a sliding mode. The detection method comprises the steps of workpiece preparation, detection tool positioning, fitting degree verification, hole site detection and detection post-processing, and the hole site position degree is visually judged through the penetration smoothness of the measuring bar. The device is high in detection precision, stable and reliable in result, easy and convenient to operate, convenient to maintain, simple in structure, low in manufacturing cost, capable of effectively meeting the requirement for online rapid detection of the position degree of the key pin hole of the transmission front shell, high in practicability and suitable for application and popularization.
Owner:HARBIN DONGAN AUTOMOTIVE ENGINE MFG CO LTD +1
Walk-in rapid temperature change laboratory
PendingCN122252278ALittle elasticityavoid clampingHeating or cooling apparatusAir-pressure/air-lock chambersExperimental laboratoryTest room
The application discloses a walk-in type rapid temperature change laboratory, which comprises a test chamber, a test rack and a ring-shaped clamp unit which is spliced by at least two arc-shaped clamp units and is arranged on the test rack. The arc-shaped clamp unit comprises an arc-shaped fixed ring segment, a floating clamping petal and a zero-stiffness beam group. A positive stiffness beam in the zero-stiffness beam group provides basic elasticity, and a negative stiffness beam generates a negative stiffness response through reverse bending when the floating clamping petal is radially displaced, so as to offset part of the force increment of the positive stiffness beam. The application passively adapts to thermal expansion and contraction of a tubular workpiece by using a pure mechanical structure, keeps the clamping force constant under severe temperature change, avoids deformation of the workpiece due to over-clamping or loosening of the workpiece due to cold contraction, and is convenient to disassemble and assemble in situ due to the split structure.
Owner:东莞市环仪仪器科技有限公司
Double-layer shielding type ultra-deep stratum concrete flow state detection device and method
The application discloses a double-layer shielding type super-deep stratum concrete flow state detection device and method, belongs to the technical field of water conservancy and hydropower foundation construction, and comprises a box body, a pressure sensor and a driving mechanism are arranged in the box body, and further comprises a detection mechanism, the detection mechanism comprises an outer sleeve, an inner push rod, a driving assembly and a detection assembly; the outer sleeve is axially connected with the pressure sensor, the inner push rod and the driving assembly are arranged in the outer sleeve, a detection cavity is surrounded between the inner push rod and the outer sleeve, and the detection assembly is arranged at one end of the inner push rod close to the detection cavity. The double-layer shielding type nested structure formed by the outer sleeve and the inner push rod makes the stress signal collected by the detection assembly only be the pure axial resistance exerted by the concrete to be detected on the end face of the inner push rod, solves the defects of the existing detection device, such as detection data distortion and insufficient precision caused by resistance superposition, eliminates the detection error caused by resistance superposition, and guarantees the reliability and accuracy of the detection data.
Owner:SINOHYDRO FOUND ENG
Parallel multi-fracture electromagnetic switch cooperative control method
ActiveCN119419094AImprove dynamic response performanceEliminate detection errorsRelaysControl engineeringMagnetic switch
The invention relates to a cooperative control method for parallel multi-break electromagnetic switches. The method comprises the following steps: designing a single-pole electromagnetic switch intelligent control module, and realizing signal transmission when each pole switch is switched on and switched off through an associated control module. Through a fixed-phase switching-on control strategy, load properties are detected in real time, and corresponding control strategies are formulated for switching-on inrush currents with different characteristics caused by different load properties so as to reduce contact ablation caused by bouncing arcs during switching-on. In order to improve the breaking capacity of the parallel multi-break electromagnetic switch, a cooperative breaking control strategy is adopted to improve the consistency of the opening moment.
Owner:FUZHOU UNIV
Intelligent brain multi-mode image diagnosis system
InactiveCN119326432ARelieve stresscomfort experiencePatient positioning for diagnosticsSensorsMedical equipmentPhysical medicine and rehabilitation
The invention discloses an intelligent brain multi-mode image diagnosis system, and relates to the field of medical equipment, the intelligent brain multi-mode image diagnosis system comprises an equipment box, a folding bed is arranged on one side of the equipment box, an air bag is arranged on the folding bed, the folding bed is connected with a decompression ball through the air bag, data is recorded, and the accuracy of examination equipment data is improved. A bed matched with existing equipment for use is improved, a folding bed is adopted for replacing the bed, more comfortable experience is provided for a patient in the examination process through the folding bed, discomfort caused by the fact that joints of the patient extrude a bed body in the long-time examination process is avoided, in addition, boundary support is provided for the patient through the protective side plates and the air bags, and the patient is more comfortable. The pressure reduction ball is further arranged, the patient can hold the pressure reduction ball by hand to distract attention, the pressure reduction ball is used for monitoring and recording the force change of fingers of the patient in the examination process, and the examination data are compared to eliminate errors caused by emotion tension of the patient.
Owner:ANHUI MAGNETIC SPIN TECH CO LTD
Electric water heater leakage quick detection device
The utility model belongs to the field of electric leakage detection, especially electric water heater electric leakage fast detection device, the current device cannot realize nondestructive rapid discrimination, lead to detection process is complicated, the efficiency is low, and need direct contact live component in the dismounting process, there are electric shock, short circuit and other serious security hidden trouble problem, present the following scheme, it includes the line row box, the inside fixed setting of line row box has the circuit board, the one side of line row box is provided with the plug, the top of line row box is set up with three jack; Detection assembly is provided on the line row box and is used for detecting the electric leakage of the electric leakage wall of the electric water heater. In the utility model, through the setting of detection assembly, the user need not disassemble the equipment or contact the live component, and the whole operation from fast connection, stable contact detection to automatic discrimination of electric leakage risk can be completed, the detection efficiency is improved, and the electric shock, short circuit and other security hidden troubles in the dismounting process are completely avoided.
Owner:郑光耀
Dynamic balance test tool for impeller of suspension type centrifugal blower
ActiveCN222336644UEliminate detection errorsImprove test accuracyStatic/dynamic balance measurementImpellerBalancing machine
The utility model belongs to the technical field of impeller detection equipment, and particularly relates to a suspension centrifugal blower impeller dynamic balance test tool, which comprises a base, support frames, a balance shaft, an impeller and rollers, a slide rail is arranged on the base, the support frames are symmetrically arranged on two sides of the base in the length direction, and the support frames are slidably connected onto the slide rail. The idler wheels are symmetrically arranged on the supporting frame in the length direction of the supporting frame and connected with the idler wheel adjusting seat, the idler wheel adjusting seat is provided with a second shifting rod and slidably connected to the supporting frame, the balance shaft is connected to the idler wheels, the impeller is connected to the idler wheels through nuts, and the balance shaft is connected with the transmission wheel through a belt. The transmission wheel is rotationally connected to the cross beam, and the cross beam is slidably connected to the sliding rail; compared with the prior art, the utility model has the advantages that the assembly process is simple, the use is convenient, the detection error caused by the problem of the dynamic balancing machine is eliminated through the assistance of the gradienter, and the time cost is saved while the precision is ensured.
Owner:SHANDONG ZHANGGU GAOFU INTELLIGENT MFG TECH CO LTD +1
Formwork plate inclined hole angle detection device
ActiveCN224151719UObserve horizontal status in real timeEliminate detection errorsAngles/taper measurementsStands/trestlesStructural engineeringMechanical engineering
Owner:ZHEJIANG LONGYOU DINGFENG HARDWARE MFG CO LTD
Thin-wall pipe fitting static pressure strength damage test device and test method
ActiveCN119223774AEliminate detection errorsguarantee authenticityMaterial strength using tensile/compressive forcesPipe fittingPipe
The invention relates to the technical field of mechanical property testing, in particular to a thin-wall pipe fitting static pressure strength damage testing device and a thin-wall pipe fitting static pressure strength damage testing method. The testing device comprises a pair of side plates, each side plate is provided with a clamping assembly used for clamping the thin-wall pipe fitting, the clamping assemblies clamp the thin-wall pipe fitting between the two side plates, and at least one connecting rod is horizontally connected between the two side plates. Each clamping assembly comprises a pressurizing seat and a locking piece which are coaxially arranged; the locking piece is arranged on the thin-wall pipe fitting in a sleeving manner and is in threaded fit with the pressurizing seat; wherein one pressurizing seat is through in the axial direction and used for inputting high-pressure liquid into the thin-wall pipe fitting, and a corresponding pressure inlet is formed in the corresponding end of the thin-wall pipe fitting. Compared with the prior art, the testing device can serve as a universal testing device for the thin-wall pipe fitting, the two ends of the thin-wall pipe fitting can be stably clamped, and after high-pressure liquid is introduced, static pressure strength damage testing is conducted on the thin-wall pipe fitting.
Owner:EIGHTH INST OF NUCLEAR IND
Portable shafting circle grating precision automatic detection device and method of photoelectric theodolite
The application relates to a portable shaft system circular grating precision automatic detection device and method of a photoelectric theodolite, which comprises a high-precision level, a detector rotor adapter, a shaft system rotor yoke, a high-precision detector, a detector connecting ring, a shaft system connecting ring, a shaft system centering chuck, a circular grating transition ring, a circular grating, a to-be-detected shaft system stator and a to-be-detected shaft system rotor. The platform adopted in the application can be adjusted through a coupling tooling piece to adapt to various circular grating models, the installation method is simple, and the platform is not limited by space. The tower difference is adjusted through a high-precision level and a three-leg lifting platform, automatic detection is realized along with the rotation of the photoelectric theodolite, the detection time is greatly shortened, precision detection of different sampling frequencies can be realized along with the change of the rotation speed of the photoelectric theodolite, sampling points are increased by improving the sampling frequency, human eye detection errors are eliminated, and the detection precision is improved.
Owner:CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
Automatic box dropping synchronous control method and system based on multi-camera vision assistance
This invention discloses an automatic box-dropping synchronization control method and system based on multi-camera vision assistance. The method includes: installing at least four cameras on a lifting device and establishing a unified coordinate system; assigning a unified clock timestamp to the images from each camera; detecting the spatial position of keyholes in the images and associating them with the timestamps; performing time window matching on the data from different cameras based on a synchronization time threshold to form a synchronized observation set; compensating for the time difference of keyhole positions within the set according to the lifting device's movement speed; verifying the geometric consistency of the compensated data using multi-hole positions and eliminating abnormal data; calculating translational and rotational deviations based on the verified keyhole positions, generating control commands to drive the lifting device in closed-loop adjustment until the box-dropping accuracy is met. This invention effectively eliminates detection errors caused by time asynchrony between multiple cameras and lifting device movement, significantly improving the accuracy and stability of automatic box-dropping.
Owner:BROAD VISION (XIAMEN) TECHNOLOGY CO LTD
Detection circuit, error correction method and electronic device
ActiveCN117890649BEliminate detection errorsVoltage dividersVoltage measurements onlyDividing circuitsLow voltage
The present application relates to a detection circuit, an error correction method and an electronic device. A detection circuit includes: a voltage divider circuit, which is used to be set between a high voltage end and a low voltage end, and is configured to generate a detection voltage according to the voltage difference between the high voltage end and the low voltage end; a compensation circuit, which is configured to adjust the impedance according to the compensation signal to perform error compensation on the detection voltage output by the voltage divider circuit; an isolation circuit, which is used to output the detection voltage and isolate the compensation signal; a main control circuit, which is configured to obtain a voltage difference according to the detection voltage output by the isolation circuit, and is also configured to output a preset compensation signal. The present application can compensate the detected detection voltage according to the compensation signal through the compensation circuit, so that different compensation signals can be set to correspond to different detection circuits, so as to eliminate the problem of detection error caused by individual factors of each component in the detection circuit.
Owner:SHENZHEN TIANXINGRUI TECH CO LTD
Dynamic balance detection mechanism of residual current transformer
ActiveCN224151890UEliminate detection errorsHigh positioning accuracyStatic/dynamic balance measurementPolyphase network asymmetry measurements
The utility model relates to the technical field of dynamic balance detection of electronic devices, and discloses a dynamic balance detection mechanism of a residual current transformer, which comprises a fixed bottom plate, the upper end of the fixed bottom plate is fixedly connected with a mainframe box, a system control box and a digital power box, and a current booster is arranged in the mainframe box; the mainframe is fixedly connected to the upper end of the mainframe box, an inclination mechanism is fixedly connected to the upper end of the mainframe, the mainframe is rotationally connected with a detection table through the inclination mechanism, a pitch changing mechanism is fixedly connected into the detection table, a rotating mechanism is arranged at the upper end of the detection table, and a detected workpiece is arranged at the upper end of the rotating mechanism. According to the three-dimensional space attitude adjusting device, the attitude of a three-dimensional space is automatically adjusted through linkage control of the inclination mechanism, the pitch changing mechanism and the rotating mechanism, feedback adjustment of dynamically optimizing and adjusting parameters can be conducted under control of the PLC control system, detection errors caused by installation deviation or mechanical deformation are eliminated, the positioning precision is improved, and the detection precision is guaranteed.
Owner:SHANDONG PLATINUM CRYSTAL INTELLIGENT TECH CO LTD