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274 results about "Electromechanics" patented technology
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In engineering, electromechanics combines processes and procedures drawn from electrical engineering and mechanical engineering. Electromechanics focuses on the interaction of electrical and mechanical systems as a whole and how the two systems interact with each other. This process is especially prominent in systems such as those of DC or AC rotating electrical machines which can be designed and operated to generate power from a mechanical process (generator) or used to power a mechanical effect (motor). Electrical engineering in this context also encompasses electronics engineering.
Infrared detector with micro-bridge structure and manufacturing method thereof
ActiveCN101927976AFacilitate subsequent processingRealize the CMP processTelevision system detailsPiezoelectric/electrostriction/magnetostriction machinesElectromechanicsLithographic artist
The invention relates to an infrared detector with a micro-bridge structure, which belongs to the technical field of micro-electromechanics, and comprises a silicon substrate as a read-out circuit of the infrared detector; a metal reflecting layer deposited on the silicon substrate; a dielectric layer which is deposited in a groove of the metal reflecting layer and has the height being consistentwith that of the metal reflecting layer; a sacrifice layer and a first release protection layer used as protection of release of the sacrifice layer which are deposited on the dielectric layer and the metal reflecting layer and form through holes by lithography and etching; a copper or tungsten pier which is deposited in the through hole of the sacrifice layer; a metal electrode deposited on the copper or tungsten pier and the first release protection layer; and a sensitive material detecting layer which is deposited on the metal electrode and the first release protection layer. A Cu-column micro-bridge structure is manufactured by using the damascene process, and a flat micro-bridge plane is manufactured by introducing the chemical mechanical polishing process (CMP), thereby being conductive to the follow-up process and improving the performances.
Owner:ZHEJIANG DALI TECH +1
Micro material mechanical performance testing platform under stretching-bending-twisting multi-loads
ActiveCN103389243ANovel ideaCompact structureMaterial strength using tensile/compressive forcesMaterial strength using steady bending forcesElectromechanicsStress level
The invention relates to a micro material mechanical performance testing platform under stretching-bending-twisting multi-loads, and belongs to the field of electromechanics. The micro material mechanical performance testing platform comprises a tension and compression module, a bending module, a twisting module, a detection control module and a test-piece clamping module, wherein the testing platform takes the tension and compression module as a basic function module; the twisting module is arranged at one end of the tension and compression module; the test-piece clamping module is arranged on the tension and compression module; the bending module is independently arranged at one side of a portal frame. The micro material mechanical performance testing platform can be taken as a material mechanical performance test device with an independent stretching / compressing mode or an independent bending mode or independent twisting mode, namely a single load testing mode, and can be applied to a material mechanical performance test of a twisting load under the given stretching / compressing stress level or a material mechanical performance test of a bending load under the given stretching / compressing stress level, namely a composite load testing mode. The stress strain process of a material under the effect of a composite load can be detected by the collection of a load / displacement signal by using the detection control module.
Owner:JILIN UNIV
Comprehensive construction method based on a BIM technology
ActiveCN109614723AEasy to deepen the designGeometric CADBuilding material handlingElectromechanicsEngineering
A comprehensive construction method based on a BIM technology comprises three parts of determination of a deepening design basis, a design stage based on the BIM and drawing construction, and the determination of the deepening design basis comprises a clearance requirement report, a design blueprint, equipment parameters, technical requirements and related national and industrial specifications; wherein the drawing comprises a structure hole reserving drawing, a masonry wall hole reserving drawing, a pipeline comprehensive drawing, a single-specialty plane drawing, a section drawing, a supportand hanger large sample drawing, a machine room large sample drawing, a net height drawing and a precise assembly positioning drawing; wherein the support hanger large sample drawing is used for drawing the comprehensive support hanger and the large support hanger, and the drawing comprises a specific method large sample of the support hanger and bearing information of the support hanger. According to the pipeline comprehensive technology based on the BIM technology, professional models of buildings, structures, electromechanics and the like can be integrated, problems are found before construction of a project is started, and the problems are solved before construction through deepening design and design optimization.
Owner:THE FIRST CONSTR ENG COMPANY LTD OF CHINA CONSTR SECOND ENG BUREAU
Giant squid bionic sea floor exploration intelligent robot
The invention discloses a giant squid bionic sea floor exploration intelligent robot and belongs to the technical field of electromechanics. The giant squid bionic sea floor exploration intelligent robot comprises a submerging device, a video signal processor, a tankoscope, an underwater camera, a mechanical claw, a mechanical arm, mechanical peduncles, a working device, a base framework, an embedded clamping plate, a storage battery pack, horizontal propellers, perpendicular propellers, a main controller, perpendicular ducts, a switching interface, a umbilical cord cable and a sea floor explorer, wherein the working device is arranged at the upper part of the base framework; the video signal processor and the storage battery pack are arranged inside the working device; the underwater camera and a group of horizontal propellers are arranged at the outer side of the working device; the submerging device is arranged at the upper part of the working device; the four perpendicular ducts are arranged inside the submerging device; the perpendicular propellers are arranged inside the perpendicular ducts; the sea floor explorer is arranged in the middle of the base framework; the mechanical arm is arranged on the side of the base framework; the mechanical claw is arranged on the mechanical arm; and five mechanical peduncles are arranged at the lower part of the base framework. The robot can execute various sea floor exploration tasks and is stable in performance.
Owner:ZHEJIANG OCEAN UNIV
Cross-scale micro-nano-scale in-situ composite load mechanical performance testing platform
ActiveCN102262016ARealize acquisitionEasy to controlMaterial strength using tensile/compressive forcesNanotechnologyMicro nanoElectromechanics
The invention relates to a cross-scale micro nanometer grade in-situ composite load mechanical property testing platform, belonging to electromechanics. The cross-scale micro nanometer grade in-situ composite load mechanical property testing platform is composed of a precision drive and transmission unit, a signal detection and control unit and a clamping, connecting and supporting unit, wherein,in the precision drive and transmission unit, a DC servo motor provides power output, and a two-stage worm and gear mechanism with large reduction ratio and a precision ball screw mechanism transmit power; the signal detection and control unit is composed of a precision displacement sensor, a precision pull pressure sensor and a coder in coaxial rigid connection with the DC servo motor; and the clamping, connecting and supporting unit comprises a clamper component for locating and mounting a standard test specimen, and the like. The cross-scale micro nanometer grade in-situ composite load mechanical property testing platform can be compatible with imaging instruments, and performs a cross-scale in-situ micro nanometer composite load test on a macroscopic test specimen through observation via the imaging instruments, so as to perform in-situ monitoring on processes of microscopic deformation, injury and fracture of materials, so that a new testing method for revealing the mechanical properties and the injury mechanism of the materials at the micro nanometer grade is provided.
Owner:JILIN UNIV
Stretching, compression and bending combined load mode material mechanics performance test device under microscope
ActiveCN102384875AGood structural compatibilityRich test contentMaterial strength using tensile/compressive forcesMaterial strength using steady bending forcesElectromechanicsEngineering
The invention relates to a stretching, compression and bending combined load mode material mechanics performance test device under a microscope, and belongs to the electromechanics. A test platform includes a precision stretching / compression load driving unit, a precision bending load driving unit, a clamping unit, a detecting unit and the like. The test platform can be used for the sole stretching / compression test, sole three-point bending test, and the stretching / compression-bending combined load test. The invention has the advantages that the structure is small and compact, and the tests can be performed under the real-time observation of the optical microscope; the loading mode of the combined load is in conformity with the stress state of material and members under the actual workingcondition, and combined with the optical microscopic imaging system, deepgoing study on the micromechanics behavior and denaturing impairment mechanism of the material under the action of combined load can be carried out.
Owner:JILIN UNIV
Piezoelectric twin-wafer type MEMS energy collector and preparation method thereof
InactiveCN101860262AImprove conversion efficiencyIncrease output powerEnergy efficient ICTPiezoelectric/electrostriction/magnetostriction machinesElectricitySputtering
The invention relates to a piezoelectric twin-wafer type MEMS energy collector and a preparation method thereof, which belong to the technical field of micro electromechanics. The piezoelectric twin-wafer type MEMS energy collector comprises a plurality of piezoelectric twin-wafer cantilever beams, wherein each piezoelectric twin-wafer cantilever beam comprises a silicon immobilizing base, a piezoelectric twin wafer and mass blocks, wherein the piezoelectric twin wafer comprises a metal base chip, a two-layer piezoelectric thin film and a two-layer electrode. The method comprises the following steps: using a pulling method for attaching the piezoelectric film to the upper surface and the lower surface of the metal base chip; sputtering or evaporating a layer of metal materials on the piezoelectric film to obtain the piezoelectric twin wafer; pasting the piezoelectric twin wafer on the upper surface of the silicon chip; forming a rectangular groove on the lower surface of the silicon chip; cutting the silicon chip and the piezoelectric twin wafer; preparing a plurality of mass blocks; pasting the mass blocks on the suspended end of the piezoelectric twin wafer; and polarizing the piezoelectric twin wafer. The invention has high conversation efficiency, high output power and simple and reliable manufacture, and has wide application prospects in the design and the manufacture of wireless sensor network nodes.
Owner:SHANGHAI JIAO TONG UNIV
Capacitor micro microphone chip
InactiveCN101267689APrecise size reductionLow costElectrets selectrostatic transducerElectrostatic transducer microphonesElectromechanicsEngineering
The invention discloses a microphone chip of a capacitor micro-microphone, the capacitor micro-microphone is obtained by orderly defining and forming a disengaging layer, a first electrode layer, a diaphragm layer and a sacrifice layer on a substrate by a semiconductor manufacturing process and a micro-electromechanics technology, then continuing defining a second electrode layer and a strengthening layer, etching and caverning the sacrifice layer through using sound hole images formed correspondingly to the second electrode layer and the strengthening layer to form air gaps, forming the capacitor micro-microphone connected with a substrate, and finally etching and removing the disengaging layer by a disengaging technology so that the capacitor micro-microphone is disengaged from the substrate. Because the method adopts the semiconductor manufacturing process and the micro-electromechanics technology, the capacitor micro-microphone is manufactured without a cutting process, the volume of the capacitor micro-microphone can be accurately reduced, the good rate of the manufacturing process is increased, and the substrate can be reclaimed and reused so as to reduce material cost.
Owner:TAIWAN CAROL ELECTRONICS
Hydraulic-driving mode based in situ tensile/compression testing platform under scanning electron microscope
InactiveCN102435493AGood structural compatibilityImprove compatibilityStrength propertiesElectromechanicsScanning tunneling microscope
The invention relates to a hydraulic-driving mode based in-situ tensile / compression testing platform under a scanning electron microscope, and belongs to the field of electromechanics. The hydraulic-driving mode based in-situ tensile / compression testing platform under the scanning electron microscope comprises a hydraulic driving unit consisting of a hydraulic cylinder, an oil tank, an oil filter, a motor, a hydraulic pump, an overflow valve, a throttle valve and an electro-hydraulic servo valve, a load / displacement signal detection and control unit consisting of a displacement sensor and a pull and pressure sensor, and a clamping and supporting unit consisting of light bars, fixture body supporting racks, base linear bearings, pressure plates, a force sensor supporting rack and a specimen. The hydraulic-driving mode based in-situ tensile / compression testing platform under the scanning electron microscope has the advantages of small volume, compact structure, large output load, continuously variable transmission loading, and good structural compatibility with a microscopic imaging system with an open space structure, such as an optical microscope, a Raman spectrometer and an X-ray diffractometer and the like, and also can used for deep study on the micro-mechanical behavior and the deformation and damage mechanism of the specimen with a centimeter-level characteristic size under the action of tensile / compression loads by combination with the instruments.
Owner:JILIN UNIV
Enhancement type glass fiber composition
The invention belongs to the technical field of glass fiber and relates to an enhancement type spinning high-strength and high-modulus glass fiber composition applied to the fields of electromechanics, chemical engineering, aircrafts and the like. The enhancement type spinning glass fiber composition is prepared from, by weight, 56-65% of SiO2, 15-21% of Al2O3, 9-18% of MgO, 5-13% of CaO, 0.1-4% of Y2O3, 0-0.8% of Li2O, 0.1-1% of K2O+Na2O, and 3% or less of other impurities. The enhancement type glass fiber composition is prepared through a tank furnace technological process, by means of optimization and combination of the oxide components and particularly the introduction of Y2O3, the melting temperature, the clarification temperature and the shaping temperature of the enhancement type glass fiber composition are reduced under the situation that high strength and high modulus are guaranteed, the temperature difference between the shaping temperature and the liquidus temperature is increased, the wiredrawing situation is improved, and the enhancement type glass fiber composition is beneficial to the industrial production of high-strength and high-modulus fibers.
Owner:SHANDONG FIBERGLASS GRP
Fluorescent material emitting red and green light excited by blue light and preparation method thereof
InactiveCN102268256AHas photoluminescent propertiesWith piezoelectricTelevision system detailsPiezoelectric/electrostriction/magnetostriction machinesElectricityElectromechanics
Belonging to the technical field of luminescent materials, the invention relates to a fluorescent material able to emit red and green lights under the excitation of blue lights and a preparation method thereof. The fluorescent material of the invention has a general chemical formula of (Na0.5+deltaK0.5-yAy)1-xPrxNbO3: phiC or (Na0.5-yK0.5+deltaAy)1-xPrxNbO3: phiC, wherein, A is one or more of Li, Na and K, C is one or more of Li, Na, K, T1 and Ag, with x greater than or equal to 0.001 and smaller than or equal to 0.01, y greater than or equal to 0 and smaller than 0.5, delta greater than or equal to 0 and smaller than or equal to 0.1, and phi greater than or equal to 0 and smaller than or equal to 0.1. Inherently with piezoelectric, ferroelectric and dielectric properties, the fluorescent material provided in the invention simultaneously has a photoluminescence characteristic when excited by blue lights. Belonging to photoelectric multifunctional materials, the fluorescent material of the invention can be applied to the white LED field, and is expected to be widely applied in the fields of optoelectronic integration, micro electromechanics, photoelectric sensing, etc.
Owner:TONGJI UNIV
Novel active copper-phosphorus brazing alloy
ActiveCN101786208AReduce contentReduce dosageWelding/cutting media/materialsSoldering mediaElectromechanicsBraze alloy
The invention relates to a novel active copper-phosphorus brazing alloy, belonging to a medium-temperature brazing material. Currently, no copper-phosphorus brazing alloy with reasonable formulation design, low price and high performance-price ratio is presented. The novel active copper-phosphorus brazing alloy comprises the following components by weight percent: 1-3.5% of Ag, 6.0-7.5% of P, 0.5-2.5% of Sn, 0.1-1.5% of Ni, 0.1-2.0% of Sb, 0.01-0.5% of Zr and balance of Cu. The novel active copper-phosphorus brazing alloy has the advantages of reasonable formulation design, low price, high performance-price ratio, low melting temperature and good wettability, flowability and plasticity, can be processed to be a welding wire with the minimum diameter of 0.5mm, a welding ring with the minimum inner diameter of 3.0mm and a thin strip with the minimum thickness of 0.1mm and can be widely used for resistance brazing, flame brazing and high-frequency induction brazing in industries of refrigeration, machinery, electromechanics, electrical appliances and valve fittings.
Owner:HANGZHOU HUAGUANG ADVANCED WELDING MATERIALS CO LTD
Wide-angle binocular vision identifying and positioning device for service robot
InactiveCN103048995AImprove handlingTracking and feedback in timePosition/course control in two dimensionsArea networkElectromechanics
Owner:HEFEI INSTITUTES OF PHYSICAL SCIENCE - CHINESE ACAD OF SCI
Blue-excited red fluorescent material and preparation method thereof
InactiveCN101974331AImprove stabilityNot easy to deliquescenceGas discharge lamp usageLuminescent compositionsRare-earth elementElectromechanics
The invention relates to a blue-excited red fluorescent material and a preparation method thereof, belonging to the field of luminescent materials. The blue-excited red fluorescent material has the following chemical expression: Ca1+d-x-mAmRxBi2Ta2-nBnO9:fC, wherein the R is selected from one or more rare earth elements of Pr, Sm, Eu and Lu; the A is selected from one or more than one of Sr, Ba, Mg, Zn and Cu; the B is selected from one or two of Nb and V; the S is selected from one or more than one of Li, Na, K, Ti, Ag, B, Al, Ga and In, the x is not less than 0.00001 and is not more than 0.1; the m is not less than 0 and is more than 0.99; the n is not less than 0 and is not more than 1.99; the d is not less than 0 and is not more than 0.1; and the f is not less than 0 and is not more than 0.1. The blue-excited red fluorescent material not only has the properties of piezoelectricity, ferroelectricity and dielectricity, but also has the characteristic of blue-excited red emission, belongs to a photoelectric multifunctional material and can be widely applied to the fields of white light LED (Light Emitting Diode), optoelectronic integration, micro electromechanics, photoelectric sense, and the like.
Owner:TONGJI UNIV
Miniature multifunctional motor driving controller
InactiveCN101807879AReduce complexitySimple structureElectric motor controlMicrocontrollerElectromechanics
The invention provides a miniature multifunctional motor driving controller, which belongs to the motor control system in the technical field of electromechanics. The motor driving controller comprises a singlechip control system, a JTAG connecting pin, a motor driving module, two power modules, a maximum current selector, a dial switch, a photoelectric coupled isolating circuit, a motor control input port, a fast recovery diode, a motor driving output port, a power supply input port, a serial communication commutator, a serial communication connector, a digital IO port driving chip and an analog and digit IO port connector, wherein the parts are connected in sequence. The miniature multifunctional motor driving controller provided by the invention integrates a driver and a controller, can control a one-path two-phase step motor and a two-path DC motor, and can realize serial control and networking control. The motor driving controller has the characteristics of abundant ports, multiple functions, wide application, small volume and low cost.
Owner:CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
Power electronic system fault diagnosis method based on bond graph
The invention discloses a power electronic system fault diagnosis method based on a bond graph. The power electronic system fault diagnosis method comprises the following steps of (1) combining a modulation transformer MTF of a standard bond graph element and a resistive element R to construct a switch bond graph element with a fixed causal relationship; (2) constructing a behavior bond graph model of a power electronic system to simulate running states of the system during normal working and under failure; (3) constructing a global analytical redundancy relation with an independent structure in the model, obtaining a circuit fault feature matrix and system running residue set, and comparing the set with a fault feature matrix to determine the health state of the system and position a faulted element. A bond graph modeling and fault diagnosis method provided by the invention can be used for performing uniform modeling and fault diagnosis on a multi-energy-domain system such as electromechanics, so that the problem that mistakes are easily made in the conventional method for respectively modeling different energy domains and combining energy domain models is solved; a solution based on a bond graph method is supplied to multi-energy-domain system modeling and fault diagnosis based on a model method.
Owner:NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
Time division multiplexing decoupling method for realizing self perception executor and control system
InactiveCN101097165AReduce processing difficultyReduce installation difficultyProgramme controlPiezoelectric/electrostriction/magnetostriction machinesSequence controlElectromechanics
The invention belongs to measuring and controlling technique filed of electromechanic system, relates to realizing method and control system based on self-apperceive performer of double-direction electromechanic transducing material. Time division multiplexing decoupling and control system of self-apperceive performer adopts double-direction transducing element, using switching sequence control circuit to control double-direction transducing element as sensor or performer, when the double-direction transducing element is as the sensor, it used sensing switch, when the double-direction transducing element is as the performer, it used executing switch, it uses discharging switch to discharge the double-direction transducing element, the three switches are conducted or closed under control of switch sequence control circuit. The invention decreases volume and weight of electromechanic system, and makes structure controlled integrated and micromated, decreases difficulty of craftwork and installation; it is controlled in parity, increases stability of control. It fits for structure libration initiative control, system identification and health diagnosis, especially fits for flexible structure whose volume and weight are limited.
Owner:DALIAN UNIV OF TECH
Structure for growth of aluminum nitride with high scandium doping concentration
InactiveCN110931629AReduce stressImprove growth qualityPiezoelectric/electrostrictive device manufacture/assemblyDecorative surface effectsElectromechanicsThin membrane
The invention relates to a structure for growth of aluminum nitride with high scandium doping concentration, and belongs to the technical field of electromechanics. The structure sequentially comprises a silicon substrate, an adhesion layer, a lower electrode layer, an aluminum nitride seed layer, a low scandium-doped concentration aluminum scandium nitride seed layer and a high scandium-doped concentration aluminum scandium nitride piezoelectric layer from bottom to top. The high-scandium-doped-concentration aluminum-scandium nitride piezoelectric film grown by taking the structure as a corepreparation technology has good crystal growth quality, relatively low stress and relatively high piezoelectric coefficient, and a piezoelectric film device prepared on the basis has good performance;moreover, multiple seed layers are adopted to reduce interlayer lattice adaptation, improve the growth quality of the aluminum-scandium nitride crystal and reduce the stress of the film.
Owner:CHONGQING UNIV
Abrasion-resistant polytetrafluoroethylene and aramid fiber reinforced-modified PA66 material and preparation method thereof
The invention discloses an abrasion-resistant polytetrafluoroethylene and aramid fiber reinforced-modified PA66 material and a preparation method thereof. The polytetrafluoroethylene and aramid fiber reinforced-modified PA66 material comprises the following components in percentage by weight: 40-80% of PA66 resin, 3-5% of a compatibilizer, 5-9% of a toughening agent, 1-3% of a coupling agent, 5-15% of polytetrafluoroethylene resin, 5-25% of aramid chopped fiber and 1-3% of other plastics processing additives. PA66 resin is adopted as matrix resin, polytetrafluoroethylene resin and aramid chopped fibers are adopted as filling base materials, the additives having suitable types and proportions are adopted and processed under proper process conditions, the prepared abrasion-resistant polytetrafluoroethylene and aramid fiber reinforced-modified PA66 material has performance indicators, such as tensile strength, flexural strength, flexural modulus, impact strength and thermal stability, which are far superior to those of the traditional fiberglass reinforced-modified PA66 as well as excellent abrasion resistance and excellent chemical resistance and has road market and application prospects in such industries as automobile, aerospace, petrochemical engineering, electromechanics and electronic and electric appliances.
Owner:ANHUI KEJU NEW MATERIALS
Process for recovering polyurethane composite waste material for automobile roof liner
Owner:WUXI GISSING AUTO PARTS CO LTD
Electrothermal-driven in-plane bistable radio frequency microswitch
InactiveCN101719575AReduce power consumptionDesign impactTelevision system detailsImpedence networksStable stateIn plane
The invention relates to an electrothermal-driven in-plane bistable radio frequency microswitch belonging to the technical field of micro electromechanics. The electrothermal-driven in-plane bistable radio frequency microswitch comprises an electrothermal-driven mechanism, a mechanical locking mechanism and a signal conversion mechanism, wherein the electrothermal-driven mechanism is positioned under the mechanical locking mechanism; and the mechanical locking mechanism is connected with the signal conversion mechanism. The invention can realize the mechanical locking by using a pair of locking contacts, does not require continuous power consumption when keeping in a stable state, also fully develops the advantages of large driving force, high displacement power density and convenient integrated manufacture of an electrothermal driver and can be used as the actuation form of the mechanical locking structure of the switch. The switch has simple structure, foreseeable radio frequency (RF) characteristic, possibility of batch manufacture and practical application and suitability for integral manufacture.
Owner:SHANGHAI JIAO TONG UNIV
Automatic-developing electromechanic planar array antenna
ActiveCN1641926AVersatileImprove securityCollapsable antennas meansElectromechanicsLocking mechanism
The invention relates to wireless detecting device antenna that is called planar array antenna. Its feature is that pitching driving mechanism and electric lock mechanism is separately set on the splitting plane of the two array surfaces. The pitching driving mechanism includes frame, motor, reducer, sliding master screw, crank block segment gear mechanism. And the electric lock mechanism includes lock motor, reducer, master screw, nut and locating pin. The antenna can automatically open out and withdrawing. It has advantages like small volume, low weight, high reliability, stepless speed regulation, etc. And the temperature range it can be used is from 40 degree centigrade below zero to 55 degree centigrade.
Owner:CHINA ELECTRONIC TECH GRP CORP NO 38 RES INST
An Intelligent Digital Speed Mileage Metering Device
InactiveCN102278999ASolve the blockageSolve wear and tearDistance measurementMicrocontrollerElectromechanics
The invention discloses an intelligent digital velocity mileage metering installation, and belongs to the field of electromechanics. The installation of the invention comprises N magnetic steels arranged on a tyre hubs, a power module, a Hall sensor, a singlechip, four digit nixie tube, switch that are arranged on a vehicle body. The singlechip is equipped with a timer, a counter, a flash memory. The N magnetic steels have a same size and a same polarity, and N equals to 36. The Hall sensor transmits an induction signal of the magnetic steels to the counter, and at the same time, the timer generates an interrupt signal to the counter. The singlechip reads a value of a start-stop counter, and then the counter is cleared. The singlechip calculates a current running speed and a travelled distance of the current ride, and transmits the data to the four digit nixie tube; meanwhile, the flash memory acquires and stores the data the singlechip output each time. If applied, the invention canavoid a problem of circuit abrasion and has a high counting preciseness and high accuracy.
Owner:NANJING UNIV OF INFORMATION SCI & TECH
Heavy-loaded precision-displacement linear motor
InactiveCN101521453APiezoelectric/electrostriction/magnetostriction machinesPropulsion systemsElectromechanicsEngineering
The invention relates to a heavy-loaded precision-displacement linear motor, which belongs to the technical field of electromechanics. The linear motor comprises an intermediate extension mechanism, a front clamping mechanism, a back clamping mechanism, a non-clearance connecting frame and rigid guide rails, wherein the intermediate extension mechanism, the front clamping mechanism and the back clamping mechanism are extensible mechanisms or material bodies; the non-clearance connecting frame arranges and fastens the intermediate extension mechanism in the motion direction; the front clamping mechanism and the back clamping mechanism are arranged at both ends of the intermediate extension mechanism and are fastened through the non-clearance connecting frame; the intermediate extension mechanism, the front clamping mechanism and the back clamping mechanism are connected and fixed through the non-clearance connecting frame to form a whole, and the whole is arranged between the rigid guide rails; the non-clearance connecting frame is provided with a bearing; and the position of a frame corresponding to the output extension displacement of the intermediate extension mechanism, the front clamping mechanism and the back clamping mechanism is provided with a hinge with flexible structure. The heavy-loaded precision-displacement linear motor can furthest present the precise extension deformation quantity of a precise deformation mechanism or object as well as the extension output force of a deformation mechanism or object.
Owner:SHANGHAI JIAO TONG UNIV
Electromechanics comprehensive experimental training table
InactiveCN103824484AEasy to installImprove scalabilityCosmonautic condition simulationsSimulatorsStanding frameElectromechanics
Owner:HUAZHONG UNIV OF SCI & TECH
Array type micro-electromechanic capacitor microphone
InactiveCN1568094AImprove directivityImprove signal-to-noise ratioElectrostatic transducer microphonesTransducer circuitsSignal-to-noise ratio (imaging)Electromechanics
The invention supplied a array mode micro-electromechanical capacitive microphone. It includes a foundation support and capacitive microphone device packaged in the foundation support. The capacitive microphone device contains basis material and a pair of analog calculus devices that run under the electronic signal produced by the unit of the capacitive microphone mentioned previously. Thus, the array micro-electromechanical capacitive microphone has high directivity and high signal to noise ratio.
Owner:TAIWAN CAROL ELECTRONICS
Double-folding self-locking gasket
InactiveCN106286566AGood occlusal stabilityLarge locking forceWashersNutsElectromechanicsSelf locking
The invention provides a double-folding self-locking gasket which comprises two engaged sub-gaskets. Large wedge-shaped teeth with a circle center as a midpoint are arranged on one face of each sub-gasket, radial arc-shaped teeth with the circle center as the midpoint are arranged on the other face of the sub-gasket, each arc-shaped tooth achieves arc transition from the inner ring edge of the corresponding sub-gasket to the outer ring edge of the corresponding sub-gasket, and the two sub-gaskets are engaged through the end faces of the large wedge-shaped teeth. The double-folding self-locking gasket has the advantages of being good in engagement stability, wide in application range and high in locking capacity, and is suitable for the fields of track traffic, petroleum and petrochemical, power, war industry, electromechanics, ships and aerospace at home and abroad and the like.
Owner:GUANGZHOU SHINEDASON HARDWARE PART MFG
Method and system for interactive computation of cardiac electromechanics
A method and system for simulating cardiac function of a patient is disclosed. A patient-specific anatomical model of at least a portion of the patient's heart is generated from medical image data of the patient. Cardiac electrophysiology potentials are calculated over a computational domain defined by the patient-specific anatomical model for each of a plurality of time steps using a patient-specific cardiac electrophysiology model. The electrophysiology potentials acting on a plurality of nodes of the computational domain are calculated in parallel for each time step. Biomechanical forces over the computational domain for each of the plurality of time steps using a cardiac biomechanical model coupled to the cardiac electrophysiology model. The biomechanical forces acting on a plurality of nodes of the mesh domain are estimated in parallel for each time step. Blood flow and cardiac movement are computed at each of the plurality of time steps based on the calculated biomechanical forces. Computed electrophysiology potentials, biomechanical forces and cardiac parameters are displayed, user input is interactively received to change at least one of the parameters of the patient-specific models, and the electrophysiology potentials, the biomechanical forces, and the blood flow and cardiac movement are recalculated.
Owner:SIEMENS HEALTHCARE GMBH
Three-dimensional visual optimization method for fan position of wind power plant
ActiveCN110675494AReduce workloadAvoid time costData processing applicationsICT adaptationElectromechanicsUncrewed vehicle
The invention belongs to the technical field of three-dimensional geographic information systems, and particularly relates to a three-dimensional visual optimization method for a fan position of a wind power plant. The three-dimensional visual optimization method comprises three steps of three-dimensional modeling and monomerization, three-dimensional visual adjustment, secondary detail holographic acquisition and multi-specialty accurate decision making, and establishes a three-dimensional visual optimization environment of the wind power plant by taking unmanned aerial vehicle surveying andmapping and a three-dimensional geographic information technology as support, so that the frequent field confirmation workload and time cost of professional designers of geology, wind resources, electromechanics, roads and the like can be reduced, and the overall construction period is shortened, and the safety risk is avoided, and the optimization efficiency and accuracy of the fan position are effectively improved.
Owner:POWERCHINA XIBEI ENG
Simulative elevator electrical installation and adjustment evaluation training system for teaching
The invention relates to a simulative elevator electrical installation and adjustment evaluation training system for teaching. The system is mainly composed of a steel structure well frame 1, a simulative elevator 2 and a monitoring station 3, wherein the simulative elevator 2 is arranged in the steel structure well frame 1 and provided with training operation stations facilitating installation of various electrical components and electric circuit laying for the electrical components, and the monitoring station 3 is provided with a remote monitoring computer, a video monitoring and recording computer, a voice talkback device, relative control switches and the like. Through the monitoring computer, the running state of an elevator control system can be monitored, remote operational control running and simulative fault setting can be carried out, and video monitoring and voice prompt can be further carried out on all the operation stations through the video monitoring and talkback devices. The simulative elevator electrical installation and adjustment evaluation training system for the teaching can be widely applied to training of students majored in elevators and electromechanics, and enables the students to really learn and master skills including electrical installation wiring, electromechanical adjustment, debugging, detection, maintenance, troubleshooting and the like of a real elevator.
Owner:北京铁路电气化学校
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