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23results about How to "Accuracy adjustable" patented technology
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Tubular ultrasonic focusing device and method
The invention discloses a tubular ultrasonic focusing device and method, the tubular ultrasonic focusing device comprises a balloon, a transducer is arranged in the balloon, the transducer emits acoustic beams for ablation, and an acoustic beam adjusting structure is distributed along the axial direction of the balloon; a sound beam penetrates through the balloon and the sound beam adjusting structure, and an adjustable weak focusing area is formed on the outer side of the balloon. By adjusting the ultrasonic frequency and the distance between the acoustic structure and the incident plane of the treatment area and through a weak focusing area formed by the acoustic beam adjusting structure, the ablation depth and accuracy can be adjusted, the temperature rise in a target area is synchronous, and the advantages that the ablation effect is uniform and consistent, and the far-end boundary is obvious are achieved; by means of the structure, accurate ablation of branches and trunks of renal arteries can be achieved, thoroughness of ablation is guaranteed, damage to surrounding normal tissue is reduced to the maximum extent, the clinical requirement of'ablating and eliminating 'is met, and effectiveness and safety of treatment are improved.
Owner:SHANGHAI HANTONG MEDICAL TECHNOLOGY CO LTD
Self-calibration circuit and method for offset voltage
PendingCN119519676ASimple structureHigh precisionMultiple input and output pulse circuitsElectric variable regulationHemt circuitsClosed loop
The invention provides an offset voltage self-calibration circuit and method, the self-calibration circuit comprises a comparator and a logic circuit, and the comparator comprises a first stage circuit and a second stage circuit; the comparator is used for inputting differential signals in a working mode and comparing the differential signals to obtain output signals; in a calibration mode, the differential input end is short-circuited and connected to a common-mode level; the logic circuit is used for sampling the output signal and counting the code density output in a preset time; the offset voltage of the comparator is adjusted in a closed loop mode according to the code density, and the number of the MOS tube arrays is fed back and adjusted; mOS tube arrays are connected in parallel at an output stage of a second-stage circuit of the comparator, system imbalance is introduced to offset random imbalance, a logic circuit is used for sampling code density output by the comparator to detect the magnitude of imbalance voltage, and the number of the MOS tube arrays is fed back and adjusted to adjust the magnitude of the system imbalance; the structure is simple, the stability is ensured, a signal link is not influenced, and the precision of the comparator is improved and adjustable.
Owner:SHANGHAI XINCAN ELECTRONIC TECH CO LTD
Configuration mechanism and high-precision full-automatic individualized medical formula food configuration machine
The utility model provides a configuration mechanism and a high-precision full-automatic individualized medical formula food configuration machine. The configuration mechanism comprises a detachable storage bin and a vibration weighing, feeding and charging device arranged below the storage bin. Due to the arrangement of automatic multiple stations, automatic individual configuration of powder is achieved, the labor cost is reduced, the configuration efficiency is improved, and meanwhile the food safety risk caused by continuous long-time exposure of the powder and food pollution caused by cross operation during manual configuration are avoided; a vibration weighing feeding and charging device is adopted, so that the problem of powder blocking caused by powder caking and extrusion is avoided; and two weight sensors are arranged to calibrate and feed back the weight of the powder, so that the precision of vibration blanking is adjusted and controlled more finely, and high-precision configuration is realized.
Owner:YINGKANG DACHANG (XIAMEN) MEDICAL TECH CO LTD
A low-noise high-precision voltage-controlled current source for semiconductor lasers
ActiveCN117348665BGuaranteed stabilityreduce noiseElectric variable regulationDriving currentLow noise
The application discloses a low-noise high-precision voltage control current source for a semiconductor laser, comprising a voltage control signal generation module, a PID control module and an output current sampling and feedback module, wherein the voltage control signal generation module receives a host computer instruction and generates a voltage control signal of an output current; the PID control module receives and processes the voltage control signal generated by the voltage control signal generation module and the feedback voltage generated by the output current sampling and feedback module, generates a control voltage to control the output current of the output current sampling and feedback module; and the output current sampling and feedback module provides a stable output current for a load and provides the amplified voltage quantity of the current feedback compared with the voltage control signal to the PID control module to provide the feedback voltage for the PID control module. The application can realize accurate and stable current output, the output current is adjustable, and the application can provide stable low-noise high-precision driving current for semiconductor lasers and the like.
Owner:NANJING UNIV
Crimping forming and strain testing device for small-caliber thin plate and using method of curling forming and strain testing device
PendingCN119492639ASimple and fast operationAccuracy adjustableMaterial strength using steady bending forcesGear wheelRack and pinion
The invention provides a small-caliber thin plate curling forming and strain testing device and a using method thereof.The small-caliber thin plate curling forming and strain testing device comprises a base, the base comprises an upper mounting part and a lower supporting part, two through holes are formed in the front-back direction of the mounting part, and the two through holes of the mounting part are connected with a first lower roller and a second lower roller correspondingly; a sliding groove is formed in the center line of the mounting part, the lower end of the sliding groove is higher than the upper ends of the two through holes of the mounting part, the sliding groove sequentially comprises a front groove, a middle groove and a rear groove from front to back, the sliding groove is slidably connected with the sliding block, and a gear structure is arranged at the rear end of the upper roller. The gear structure is meshed with a tooth-shaped structure arranged on a rack on the side face of the gear structure, the rack is arranged in a clamping groove, and the clamping groove is formed above the two through holes of the installation part. By adjusting the downward pressing amount of the upper roller, curling forming of different diameters is achieved, and the device is suitable for thin plates and ring parts with the wall thickness smaller than 4 mm and the curling diameter smaller than 100 mm.
Owner:PANZHIHUA IRON & STEEL RES INST OF PANGANG GROUP
A rotation accuracy detection device for indexing plate
ActiveCN118927016Bavoid damageachieve precisionPrecision positioning equipmentMeasurement/indication equipmentsComputer hardwareMechanical engineering
The present invention provides a rotation accuracy detection device for a dividing plate, which relates to the technical field of equipment detection, and comprises a base plate, a detection mechanism and a lifting mechanism; a detection platform is fixedly provided on the upper surface of the base plate, and a dividing plate to be detected is placed on the upper surface of the detection platform; the detection mechanism comprises a mounting seat fixedly provided on the upper surface of the detection platform and located on one side of the dividing plate to be detected, and the present invention finally realizes that the pitch of the first detection gear is large, so that if the rotation deviation of the dividing plate to be detected is large, it can be quickly observed through the first detection gear, and then detected through the second detection gear. Since the pitch of the second detection gear is small, the detection value after the accuracy is adjusted can be observed more carefully, and the accuracy can be adjusted by two detection methods with different pitches. Such a design can not only avoid the dividing plate to be detected with large deviation from damaging the traditional dial indicator, but also can achieve one detection and one adjustment, thereby realizing the convenience and highest accuracy of the detection.
Owner:山东泰格尔数控机床附件有限公司
A method for precisely measuring optical wave parameters based on cross-polarization effect
The application discloses a kind of based on the optical wave parameter precision measurement method of cross polarization effect, comprising: step 1, the polarized light of polarization direction as horizontal direction is as incident light to be illuminated to dielectric, and cross polarization effect occurs when reflecting on dielectric interface;Step 2, make reflected light pass through the polarizer, and adjust the polarizer, the central light intensity of reflected light after passing through the polarizer becomes 0, and record the initial angle of the light transmission direction of polarizer and vertical direction at this time;Step 3, the physical quantity to be measured is introduced to incident light, then adjust the polarizer again, when the central light intensity of reflected light becomes 0, record the angle ψ of the change of polarizer from initial angle;Step 4, the change amount of incident light polarization direction after introducing the physical quantity to be measured is calculated according to ψ, and then the physical quantity to be measured is calculated.The optical wave parameter measurement method of the application is simple, low in cost, but the small change of the physical quantity to be measured can be accurately measured.
Owner:HUNAN UNIV
A pressure reducing type backflow preventer
ActiveCN224397225USave assembly timeReduced tightnessCheck valvesValve members for absorbing fluid energyCheck valveVALVE PORT
The utility model relates to valve technical field, and disclose a kind of pressure reducing type backflow preventer, including valve body, drain valve seat, drain valve flap, long valve rod, fixed screw, valve cover, the valve body is provided with drain valve seat, the drain valve seat inside is provided with drain valve flap, the drain valve flap upper side is provided with long valve rod, the valve body upper side is provided with valve cover.The pressure reducing type backflow preventer, by first valve seat, first valve flap, first main valve rod, first spring seat, first spring and first hexagon nut are assembled to it before being loaded into valve body, subsequent and present an integral loading into valve body inside, greatly shorten assembly time, also suitable for the assembly in the valve body of smaller volume, the unique flow passage design of two-stage check valve, small flow resistance, open and close speed is fast, can effectively prevent the damage of sudden back pressure rise to valve and pipeline, limit pressure water backflow or siphon backflow, with mute function, effectively prolong the service life of valve.
Owner:PULIAN FORCE FLUID CONTROL (SHANGHAI) CO LTD
A sintering machine tail bend
The utility model provides a kind of sintering machine tail bend, including two tail track units being oppositely arranged along transverse direction, each tail track unit includes frame, outer rail assembly and inner rail assembly, outer rail assembly includes outer side ring beam, outer side support seat assembly and outer side track, inner rail assembly includes inner side ring beam, inner side support seat assembly and inner side track, outer side track is adjustably arranged along transverse direction, along the direction of inner side track respectively, inner side track is adjustably arranged along transverse direction, interval space between outer side track and inner side track is used to limit trolley wheel running track.Such as using the structure form of integral ring beam combined with support seat can increase bend rigidity and stability, effectively inhibit the problem such as arching, deviation etc. generated due to tail bend deformation in the process of equipment operation, ensure that sintering machine runs stably and reliably;And the position of track is adjustable in part direction can ensure the control of track precision in installation process, avoid the influence of manufacturing error on equipment.
Owner:ZHONGYE-CHANGTIAN INT ENG CO LTD
A reflective encoder disk
ActiveCN224285967UAccuracy adjustableMeasurement accuracy adjustmentMeasurement apparatus housingsConverting sensor outputLight irradiationThin membrane
This utility model relates to the field of reflective code disks, specifically a reflective code disk, including an inner cylinder assembly; an adjustment component is fixed to the outer side of the port of the inner cylinder assembly, and an outer cylinder assembly is rotatably disposed on the outer side of the inner cylinder assembly; the working end of the elastic component is connected to the outer wall of the end opposite to the adjustment component of the inner cylinder assembly. Rotating the cylinder causes the base plate assembly to rotate, thereby misaligning the reflective coating and the light shield, increasing the frequency of light irradiation received by the photoelectric sensor. When the frequency of irradiation received by the photoelectric sensor increases, its measurement accuracy becomes more refined, thus adjusting the accuracy of the code disk. A protective film protects the glass substrate and the reflective coating, preventing scratches on the surface of the glass substrate. In addition, a side sleeve is provided on the side of the glass substrate, and the side sleeve wraps the protective film inside, preventing the glass substrate from breaking due to impact, thus improving the protective effect.
Owner:CHANGCHUN JIANKUN UNION TECH DEV CO LTD
Robot space continuous curve trajectory offline programming method, storage medium and system
ActiveCN116901078BAccuracy adjustableHigh precisionProgramme-controlled manipulatorTotal factory control
The present invention discloses a robot space continuous curve trajectory offline programming method, storage medium and system. The method is: after the three-dimensional model of the robot and the material to be processed is imported into the three-dimensional simulation software, the software is made to draw the processing trajectory; the software is made to use the robot back calculation mechanism solver to solve the point set of the trajectory; the accuracy requirement is determined according to the production process of the material to be processed, and the point taking time period is determined accordingly; Y points are taken out from the point set and stored in the target point set; the curvature of the processing trajectory at the Y points is calculated respectively, if the point curvature is less than the first threshold, the point is removed, if the point curvature is greater than the second threshold, then n points are taken out from the point set before and after the point and stored in the target point set; the target point set is output. The method can select the points of the processing trajectory according to the production process accuracy requirement standards of different materials to be processed, so as to adjust the processing accuracy of the robot accordingly.
Owner:FOSHAN MITA TECH CO LTD
Installation method of sliding support steel beam in photovoltaic glass total-oxygen kiln
ActiveCN119323114AGuaranteed accuracycancel noiseDesign optimisation/simulationBuilding material handlingReference modelingModeling software
The invention discloses an installation method of a sliding support steel beam in a photovoltaic glass total oxygen kiln, and belongs to the technical field of glass kiln construction. The method comprises the steps that 1, a scanner and modeling software are prepared, and the mounting position and the surrounding environment of a support are surveyed in advance; 2, transmitting the real-time data of the site ground to modeling software to generate a real-time three-dimensional model; 3, combining the three-dimensional ground model generated in real time with the model of the mounting position of the support, and verifying and adjusting; 4, updating the ground part for installing the reference model according to the ground model data generated in real time; fifthly, the ground of the mounting position of the support is pretreated; and 6, according to guidance of the updated installation reference model, actual installation work of the support is carried out. The method is simple and convenient to operate, and has the advantages of accurate sliding support steel beam installation position, no deviation, real-time synchronization of sliding support steel beam installation construction monitoring and higher efficiency.
Owner:CHINA MCC17 GRP CO LTD
A spindle assembly structure and locking method for a hemispherical bearing
The invention discloses a spindle assembly structure and locking method of a hemispherical bearing, wherein the assembly structure comprises: a box body, in which the spindle is inserted; a left hemisphere and a right hemisphere are arranged at two ends of the spindle; the outer end face of the right hemisphere is fixedly connected with the T-shaped end face of the spindle by a first screw; a left bearing cover is arranged at the outer side of the left hemisphere, and a right bearing cover is arranged at the outer side of the right hemisphere; a transition piece is sleeved at the outer side of one end of the spindle close to the left hemisphere, and is threadedly connected with the spindle; the transition piece is fixedly connected with the end of the left hemisphere by a third screw; a positioning retaining ring is extended on one side of the transition piece close to the left hemisphere, and a positioning groove is arranged at the position corresponding to the positioning retaining ring of the left hemisphere; a locking block is arranged at one end of the transition plate away from the left hemisphere, the locking block is integrally connected with the transition plate, and a fourth screw for locking the axial thread of the spindle is fixed on the surface of the locking block. The locking effect of the assembly of the hemispherical bearing and the spindle in the invention is more reliable, and the assembly error is small.
Owner:GENERAL TECH GRP MASCH TOOL ENG RES INST CO LTD
Building safety detection device
Owner:HUBEI RONGHONG WATER CONSERVANCY & HYDROPOWER ENGINEERING CO LTD
Single acting positioner with rated pressure reducing flow amplifier
The application discloses a quota pressure-reducing type flow amplifier for a single-acting positioner and belongs to the field of industrial flow control. The amplifier is divided into an adjusting part and a pressure-reducing part. The former changes the deformation of a flexible diaphragm by changing the pressure of adjusting air, and the flexible diaphragm pushes a valve core to change the pressure of output air. The latter comprises a spring seat, a pressure-reducing spring, a connecting seat assembly, a pressure-reducing valve core, a pressure-reducing valve seat, a pressure-reducing diaphragm, a disc washer and a supporting pad. The pressure-reducing valve core and the connecting seat assembly are connected into a pressure-reducing air core which blocks a valve hole under the joint action of the pressure-reducing spring and the adjusting air. When the pressure of the adjusting air is lower than a limit value, the pressure-reducing air core closes the valve hole. When the pressure of the adjusting air exceeds the limit value, the valve hole is opened, the adjusting air is discharged to the outside, and the pressure of the adjusting air is stabilized at a set value. The application simplifies the structure of the pressure-reducing device, reduces the difficulty of assembly and debugging, can be adapted to a high-pressure adjusting air scene, and improves the control stability and response speed of the single-acting positioner.
Owner:JIANGSU JUSHI DIGITAL TECH CO LTD
Multi-station sheet metal bending and calibrating fixture
This utility model relates to the field of sheet metal bending calibration technology, specifically disclosing a multi-station sheet metal bending calibration fixture, including: a workbench for installation, and a fixed plate stably installed at the upper middle part of the workbench; it also includes: a left and right clamping mechanism provided on the fixed plate, wherein the left and right clamping mechanism includes a bidirectional threaded screw, a motor, a first clamping plate and a second clamping plate, the motor is installed at the right end of the bidirectional threaded screw, and the first clamping plate and the second clamping plate are connected to the outer side of the bidirectional threaded screw, and the second clamping plate is located to the right of the first clamping plate; a support frame, wherein a locking mechanism is provided at the upper end of the support frame, wherein the locking mechanism includes a locking groove, a sliding frame, a first locking rod and a spring, and a locking groove is provided inside the support frame. This multi-station sheet metal bending calibration fixture facilitates anti-displacement clamping of sheet metal within the fixture, facilitates height adjustment of the fixture equipment, and facilitates adjustment of the clamping accuracy according to the sheet metal thickness.
Owner:BAZHOU NEW HONGGUANG ELECTRICAL EQUIP CO LTD
A real-time morphing method, system, storage medium and electronic device
This application discloses a real-time deformation method, system, storage medium, and electronic device, relating to the field of virtual application technology. This solution introduces speed-modulated force calculation, density-adaptive deformation, and adjustments to the mesh complexity of the virtual sculpture model based on the interaction force and speed of the user object. This allows for real-time, adaptive adjustment of the virtual sculpture model's mesh complexity, thereby presenting a highly realistic physical deformation effect—i.e., visual realism—while ensuring real-time performance. Furthermore, through the topological structure, material property definition, and real-time processing optimization of the virtual sculpture model's mesh, this solution ensures that the model does not tear or distort after deformation and maintains texture consistency. This enables dynamic and local adjustments to the accuracy of the virtual sculpture model during sculpting using VR sculpting software, based on the real-time force intended by the user object.
Owner:HUNAN HAPPLY SUNSHINE INTERACTIVE ENTERTAINMENT MEDIA CO LTD
System and method for realizing data-level interaction between management departments and agent banks
ActiveCN118916927BImprove interaction efficiencyprovide accuratelyFinanceDigital data protectionData acquisitionEngineering
The present invention discloses a system and method for realizing data-level interaction between a management department and an agent bank, including a data acquisition module, a data storage center, an interactive authentication module, a communication transmission module, a data compensation processing module and a display terminal, and the present invention relates to the technical field of data interaction. The system and method for realizing data-level interaction between a management department and an agent bank, by providing a data compensation processing module, performs a preprocessing operation on the interactive data, performs a conversion operation on the processed data through a mapping function, performs a traversal operation on the converted data, realizes the marking and compensation operation of abnormal data, and transmits the compensated data, thereby not only improving the efficiency of data interaction, but also realizing accurate data provision, reducing the probability of data errors, unifying the data format, simplifying the operation process, and facilitating data interaction operations.
Owner:浙江网盛数新软件股份有限公司
Double-bending tool and process
PendingCN119525323ASimple structureEasy to adjustMetal-working feeding devicesPositioning devicesMachineServo
The invention relates to the technical field of bending machines, in particular to a double-bending tool and process, the double-bending tool is fixedly connected with a lower die base of a bending machine, the double-bending tool comprises a bearing assembly, a limiting assembly and an adjusting assembly, the bearing assembly is used for bearing a machined plate, the limiting assembly is used for limiting the positioning relation between the machined plate and a bending machine die, and the adjusting assembly is used for adjusting the positioning relation between the machined plate and the bending machine die. The adjusting assembly is used for adjusting the positioning precision of the limiting assembly. According to the bending machine auxiliary tool and technology, servo motor driving is not needed, the structure is simple, the positioning precision of the limiting baffle can be rapidly adjusted, work is stable and reliable, and the cost is low.
Owner:CHONGQING WANGBIAN ELECTRIC GRP CORP
A powder spray device
This invention relates to the field of electrostatic powder coating technology and discloses a powder coating device, including a spray gun nozzle, a plurality of spray gun nozzles arranged at intervals, and a baffle plate disposed between two adjacent spray gun nozzles. The baffle plates on both sides of the spray gun nozzles are symmetrically arranged, and each spray gun nozzle is installed on the same horizontal plane. The ends of two adjacent baffle plates are connected, and the ends of each baffle plate are located on the same horizontal plane, which is parallel to the horizontal plane where the spray gun nozzles are located. The powder sprayed from the spray gun nozzles passes through the ends of the baffle plates on both sides and can perform spraying on the material to be coated in a manner that meets the spraying requirements. Its advantage is that it can intercept uneven powder spray and improve the uniformity of powder coating.
Owner:HUNAN YUANYANG INTELLIGENT EQUIP CO LTD
A continuous sample loading syringe pump structure
ActiveCN112326985BAccuracy adjustableHigh precisionLaboratory glasswaresMaterial analysisPhysicsSyringe
The present invention discloses a syringe pump structure for continuous loading, including a multi-way valve, a large syringe pump, the multi-way valve including a NO normally open port, an NC normally closed port, a COM common port, a small syringe pump and a driving mechanism, the NO normally open port is connected to the sample solution, and the COM common port is connected to the pump port of the large syringe pump; the volume specification of the large syringe pump exceeds the volume specification of the small syringe pump, the NC normally closed port is provided with a flow path leading to an SPE column, and the pump port of the small syringe pump is connected in parallel to the flow path; the driving mechanism is provided with a first output end and a second output end with opposite moving directions, the pusher head of the large syringe pump is connected to the first output end, and the pusher head of the small syringe pump is connected to the second output end, and when the pusher head of the small syringe pump pushes toward the pump port of the small syringe pump, the pusher head of the large syringe pump is away from the pump port of the large syringe pump. The present case can push liquid while absorbing liquid, realize continuous loading, and improve the efficiency and accuracy of large volume loading.
Owner:RAYKOL GROUP (XIAMEN) CO LTD
A control method and system of a virtual synchronous generator system
PendingCN122292572AAccuracy adjustableImprove the quality of optimized particlesVirtual synchronous generatorPhase currents
This invention discloses a control method and system for a virtual synchronous generator system. The control method includes: performing power outer loop control to obtain the virtual rotor angle and virtual electromotive force of the virtual synchronous generator; performing current inner loop control by substituting the obtained virtual rotor angle and virtual electromotive force into the stator equations to calculate current reference values and current reference phasors, and generating three-phase current reference values by combining the virtual rotor angle; comparing the three-phase current reference values with the actual three-phase currents through hysteresis to obtain a PWM wave drive signal; optimizing the particle swarm optimization algorithm based on the rated capacity to obtain PID controller parameters, which are then used for control and adjustment of the power outer loop and the current inner loop to control the virtual synchronous generator system. This control method can improve the dynamic response capability of the power grid to reactive power during load changes.
Owner:JIMEI UNIV
A nozzle that can switch to hydraulic force
This utility model relates to the field of nozzle equipment technology, specifically to a nozzle capable of switching hydraulic pressure. It includes an inlet pipe, one end of which is equipped with a dual-channel fitting. The dual-channel fitting includes a straight guide pipe, a diversion guide pipe, and a reversing valve. One end of the reversing valve is directly connected to the fitting on the inlet pipe. The straight guide pipe and the diversion guide pipe are respectively connected to the two outlet connectors of the reversing valve. The other end of the straight guide pipe is connected to a pressure reducing pipe, and the other end of the pressure reducing pipe is equipped with a first spray element. The other end of the diversion guide pipe is connected to a booster pump, and the other end of the booster pump is equipped with a second spray element. This utility model, by setting a reversing valve in conjunction with dual-channel liquid outlet, allows selection of the liquid pressure path according to actual conditions.
Owner:KROM WUXI FLUID CONTROL