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49results about How to "Lower difficulty requirement" patented technology
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Driving device for pulse laser
ActiveCN102610998AReduce special requirementsIncrease the lengthExcitation process/apparatusSemiconductor laser excitation apparatusCoaxial cablePulse parameter
The invention relates to a driving device for a pulse laser. The driving device comprises a drive and power supply module and a laser module; the drive and power supply module comprises a power supply source unit and a pulse generating unit; the power supply source unit is used for supply power to the laser module and the pulse generating unit; the pulse generating unit is used for generating electrical pulses according to a required pulse parameter; the laser module comprises a pulse level conversion unit, a pulse current switch and the pulse laser; the pulse level conversion unit is used for stepping up the electrical pulses generated by the pulse generating unit to a required electrical level so as to meet the driving requirements of the pulse current switch; the pulse current switch is used for driving the pulse laser; the power supply source unit is respectively connected with the pulse level conversion unit and the pulse laser through power supply leads; and the pulse generatingunit is connected with the pulse level conversion unit through a coaxial cable. According to the driving device for the pulse laser, the short driving distance of the pulse laser can be prolonged, and the driving quality can be improved.
Owner:SHANGHAI INST OF MICROSYSTEM & INFORMATION TECH CHINESE ACAD OF SCI
Full automatic gas recovering and charging device and method
InactiveCN103115458AAvoid accidentsLower difficulty requirementRefrigeration componentsAutomotive engineeringElectricity
The invention provides a full automatic gas recovering and charging device which comprises a first pipeline, a first oil separator, a compressor, a second oil separator, a work tank and a second pipeline. One end of the first pipeline is communicated with a low-voltage charging end of a car air conditioning system. The first oil separator is respectively communicated with the first pipeline and the compressor. The work tank is respectively communicated with the compressor and the second pipeline. The second pipeline is communicated with a high-voltage charging end of the car air conditioning system. The position of the first pipeline is provided with a first magnetic valve which controls the on and off of the first pipeline. The second pipeline is provided with a second magnetic valve which controls the on and off of the second pipeline. The full automatic gas recovering and charging device further comprises a first pressure sensor and a controller. When the full automatic gas recovering and charging device is connected with the car air conditioning system, the first pressure sensor is connected with the car air conditioning system to detect the pressure inside the car air conditioning system, and the controller is electrically connected with the first pressure sensor, the first magnetic valve, the compressor and the second magnetic valve.
Owner:甘小琴 +1
An annular optical fiber with an asymmetrical optical grating and application in orbital angular momentum generation thereof
ActiveCN107462948AEfficient separationCrosstalk ignoreCladded optical fibreOptical waveguide light guideGratingNon symmetric
The invention provides an annular optical fiber with an asymmetrical optical grating and application in orbital angular momentum generation thereof. A hollow core annular optical fiber can increase the effective refractive index between degeneracy-similar modes, thereby preventing crosstalk between the modes. A long period optical grating inscribed on the upper half ring of the hollow core annular optical fiber breaks a circular symmetry structure of the optical fiber and achieves conversion between angular non-same order modes. When input light is of a circular polarization fundamental mode, a first-order orbital angular momentum mode can be generated. The hollow core of the hollow core annular optical fiber is filled with an optical functional material with the refractive index adjustable and the wave length for generating the orbital angular momentum mode can be tuned by the refractive index of the liquid, so that the structure can generate the orbital angular momentum mode in an adjustable cross band wave length range. Simulation shows that when the optical grating period is 292 [mu]m and the optical grating length is 1.460cm, the range of broad band wave lengths with the angular momentum mode conversion rate higher than 90% can reach 237nm, the greatest conversion rate is 98.91%, and the modulation rate of the refractive index of the filling liquid for the wave lengths for orbital angular momentum mode generation is 400nm / RIU.
Owner:NORTHEASTERN UNIV
Temperature prediction method for photovoltaic assembly
InactiveCN106228256ALower difficulty requirementImprove forecast accuracyForecastingNeural learning methodsHidden layerComputer science
The invention relates to a temperature prediction method for a photovoltaic assembly. The method comprises: step one, data initialization is carried out and an input vector and a target vector are determined; step two, an assembly temperature prediction model based on a BP artificial neural network is constructed; step three, error counter-propagation algorithm training is executed to obtain outputting of all nodes of a hidden layer and an output layer; step four, a connection weight value is adjusted and all node outputs of the hidden layer and the output layer after adjustment are obtained; and step five, if a convergence condition is met, training is completed; and otherwise, the step three is executed again. On the basis of predication of a photovoltaic assembly temperature, the accuracy of photovoltaic power generation prediction is improved.
Owner:CHINA ELECTRIC POWER RES INST +2
High-resolution reflection type high-speed rotating mirror interference spectrometer
InactiveCN101782431AHigh spectral resolutionIncrease optical path differenceInterferometric spectrometrySpectrum generation using multiple reflectionPlane mirrorSystem structure
The invention relates to a high-resolution reflection type high-speed rotating mirror interference spectrometer which comprises a first rotating mirror and a second rotating mirror, wherein the second rotating mirror is a plane mirror. The invention provides the high-resolution reflection type high-speed rotating mirror interference spectrometer which can improve the spectral resolution of a system, can simplify the structure of the system and has large view field angle.
Owner:XI'AN INST OF OPTICS & FINE MECHANICS - CHINESE ACAD OF SCI
Coverage draping method
ActiveCN106820374AEfficient use ofLower difficulty requirementClothes making applicancesPulp and paper industryEngineering
The invention discloses a coverage draping method, comprising the steps of I, selecting white paper 80 cm in length and width, drawing a basic form of clothing according to the actual dimensions of the clothing, cutting off along the drawn lines with scissors, pasting the cut lines according to an original pattern with double-sided adhesive tape to obtain paper sample I; II, placing the paper sample I of step I on a model form, fixing with pins, cutting off redundant paper from the initial paper sample on the model form while necessary looseness is reserved to obtain paper sample II, drawing required cutting lines on the paper sample II, and pasting with red markings to obtain paper sample III; III, attaching cloth to the paper sample III. The coverage draping method is convenient and handy and is easy to master, the learning difficulty is effectively reduced, and draping is effectively popularized.
Owner:肖友烤
Multichannel parallel optical receiving module
PendingCN107340574AIncrease productivityEase of mass productionCoupling light guidesOptical pathPhotovoltaic detectors
The invention discloses a multichannel parallel optical receiving module, and the optical receiving module comprises a housing, a substrate, an MT connector, a ceramic terminal, and a flexible circuit board. The substrate is disposed in the housing. The substrate is provided with an optical fiber collimation array, a focusing lens and an L-shaped gasket, wherein the optical fiber collimation array, the focusing lens and the L-shaped gasket are set sequentially. A side surface of the L-shaped gasket is provided with a photoelectric detector PD, and a receiving drive chip is disposed above the L-shaped gasket. The photoelectric detector PD and the receiving drive chip are connected through bonding. The optical fiber collimation array, the focusing lens and the photoelectric detector PD achieve the optical path coupling. According to the invention, the module employs a fewer optical devices, can greatly reduce the coupling difficulty of the optical path, reduces the technological difficulty and requirements during the production of the module, is easier to assemble, improves the production efficiency of the module, facilitates the batch product, and can achieve the airtightness.
Owner:HISENSE & JONHON OPTICAL ELECTRICAL TECH CO LTD
An automatic two-way explosion-proof equipment for underground coal mines and its application method
ActiveCN109751074BEasy to operateImprove reliabilityDust removalFire preventionThermodynamicsEngineering
Owner:山东德马格重工有限公司
Coal mine underground automatic bidirectional explosion suppression equipment and use method
ActiveCN109751074AEasy to operateImprove reliabilityDust removalFire preventionHigh pressureInjection air
The invention relates to a coal mine underground automatic bidirectional explosion suppression device and a use method. The bidirectional explosion suppression device comprises a sleeve, a connectingtwo-way joint, a piston barrel, a high-pressure cavity assembly and a push rod. A receiving plate is fixedly arranged on the push rod. A spraying cavity filled with dry powder is formed between the high-pressure cavity assembly, the piston barrel and an outer cover on the side where the high-pressure cavity assembly and the piston barrel are located. The interior of the high-pressure cavity assembly communicates with the interior of the piston barrel. A piston is slidably connected in the piston barrel in a sealed mode, the barrel wall of the piston barrel is provided with an air injection hole capable of enabling the spraying cavity to communicate with the interior of the piston barrel, and is provided with a through hole containing a limiting ball, the piston is provided with a step located on the side, away from the two-way joint, of the limiting ball, and grooves are formed in two sides, opposite to the limiting ball, of the sleeve respectively. The requirement for the moving distance of the piston is lowered, and it is only needed to ensure that high-pressure gas in the high-pressure cavity assembly pushes the piston away from the gas spraying hole. Bidirectional trigger can be carried out, and when one side is triggered, two sides of the device can spray dry powder, so that the explosion-proof area is increased.
Owner:山东德马格重工有限公司
Space planning-based parking space occupation state monitoring method
ActiveCN109166341AIncrease the number ofLower difficulty requirementIndication of parksing free spacesSurveillance cameraParking space
The invention discloses a space planning-based parking space occupation state monitoring method. The method comprises the steps of (1), shooting a target area to obtain a real scene image and a parking space distribution image when no parking exists; (2), based on the real scene image and the parking space distribution image in the step (1), calculating out the suggested number, heights and positions of parking space state monitoring cameras; (3), merging the real scene image and the distribution image into a real scene-based idle parking space state image; (4), calibrating parking space numbers according to space planning and practical requirements; (5), erecting the cameras at the proper positions and heights capable of covering the target area; (6), based on an initial state image, adjusting a parking space state recognition algorithm by actually measuring vehicles entering and leaving parking spaces; and (7), enabling the occupation states of the parking spaces to be more accurately captured. The method has the advantages that the identification range is wide, the deployment is simple, and the maintenance is convenient.
Owner:沈阳车泊乐科技有限公司
A long range active response loop wire set
InactiveCN101549703AIncrease the effective rangeLower difficulty requirementVehicle route interaction devicesAutomatic controlElectrical design
The invention discloses a long range active response loop wire set, which is used in the field of railway signal automatic control to account for the difficulty of changing the command of controlling vehicles and answering machine receiving, detecting and maintaining system in the existing technology. This set includes electrical design which is compatible to European standard about the basic function of the active answering machine, and the elongated active response loop wire design. In this invention, the active response loop wire set is installed in the middle of two steel rails to replace standard answering machine, the loop wire of this set is as long as 4 meters, the parameter of electric resonance point is 4.23 MHz, this set can send 4.23 MHz FSK carrier frequencies semaphore which is compatible to standard answering machine to railway engine. After using this invention, the rigor request of railway engine positional accuracy can be relaxed, which is indicated that as long as the railway engine stops at the active response loop wire set of 4 meters long, information continuously received can be implemented, greatly reduces the railway engine position request when change the command of controlling machine and the answering machine implements receiving, detecting, maintaining and employing.
Owner:BEIJING JIAODA SIGNAL TECH
Rectangular optical frequency comb generation system based on on-chip silicon nitride micro-ring
InactiveCN111610682ASolve the problem of edge power reductionImprove energy conversion efficiencyNon-linear opticsPolarizerOptical coupler
The invention provides a rectangular optical frequency comb generation system based on an on-chip silicon nitride micro-ring. The system comprises a tunable laser, a first optical coupler, a second optical coupler, an erbium-doped fiber amplifier, a polarization controller, a first optical isolator, a second optical isolator, a Si3N4 micro-ring resonant cavity, a first photoelectric detector, a second photoelectric detector, a third photoelectric detector, a data acquisition unit and a polarizer. Compared with an optical frequency comb based on dissipative optical solitons in a microcavity inthe prior art, the provided system has the following advantages: the comb tooth power of the rectangular optical frequency comb is remarkably more uniform, and particularly, a problem that the edge power of the optical frequency comb is reduced is solved, so that more comb tooth power is maintained at a high level, and the energy conversion efficiency of the optical frequency comb and the absoluteenergy of the comb teeth are remarkably improved.
Owner:SOUTHWEST UNIV
Signal test system
PendingCN114325196AReduce power consumptionSimplify the design processElectrical testingControl signalEye height
The invention provides a signal testing system which comprises a PI module, an ALGO module and an EOM module, the PI module is used for receiving a plurality of initial clock signals which are orthogonal in pairs and a clock phase control signal sent by the ALGO module and outputting a target clock signal, and the EOM module is used for receiving a to-be-tested signal, the target clock signal and a threshold voltage control signal sent by the ALGO module and outputting the target clock signal. The EOM module is used for outputting a statistical result of sampling a to-be-detected signal, the ALGO module is used for receiving the statistical result, determining an eye width value and an eye height value of an eye pattern of the to-be-detected signal, and sampling and counting the to-be-detected signal by using a target clock signal input by the phase interpolation PI module and a threshold voltage control signal sent by the ALGO module through the EOM module; the ALGO module determines the eye width value and the eye height value of the eye pattern of the to-be-tested signal according to the obtained statistical result, automatic storage and reading of the eye height and the eye width of the high-speed signal are achieved, and the power consumption of the signal testing system is low.
Owner:LONTIUM SEMICON CORP
Manufacturing process for automobile steering ball
ActiveCN106239067AImprove the heating effectImprove heating efficiencyVehicle componentsThermal treatmentHeating temperature
The invention discloses a manufacturing process for an automobile steering ball. The process includes the following steps of (1) cutting of a raw blank; (2) heating of the raw blank; (3) forging forming of the raw blank; (4) thermal treatment of a steering ball; (5) shot blasting of the steering ball; (6) turning of the steering ball; and (7) packaging of the finished steering ball. The structure is simple, practicability is high, and the heating temperature and machining allowance in the manufacturing process for the automobile steering ball are strictly controlled, so that the machining quality of the steering ball is better, and the precision level is higher; meanwhile, a ball head part and a ball rod part are subjected to forging forming through different dies, the defective rate is effectively lowered, and the cost is reduced; and the manufacturing process is simple, meets practical production requirements and increases the comprehensive utilization rate.
Owner:绍兴熔岩机械有限公司
Ring Fiber with Asymmetric Grating and Its Application in Orbital Angular Momentum Generation
ActiveCN107462948BEfficient separationCrosstalk ignoreCladded optical fibreOptical waveguide light guideGratingWavelength
Owner:NORTHEASTERN UNIV LIAONING
Submarine landslide risk analysis method based on unsupervised machine learning
PendingCN112036424AReduce human interventionLower difficulty requirementCharacter and pattern recognitionMachine learningSoil scienceEngineering
The invention discloses a submarine landslide risk analysis method based on unsupervised machine learning, and the method comprises the steps: building a submarine landslide risk evaluation and analysis model based on a determined kernel function parameter type through employing a plurality of groups of geological environment parameters, such as the water depth of a research region and the type ofsediments, as input parameters; carrying out classification processing on input parameters of an actual research region, inputting the input parameters into the constructed unsupervised machine learning model, and obtaining a final submarine landslide risk analysis result through classification and label endowing. According to the scheme, a danger analysis means before the submarine landslide isdangerous is provided, and danger evaluation and prediction can be carried out on the area where the submarine landslide is not generated yet; evaluation can be carried out according to different types of geological parameters, and submarine landslide risk zoning can be rapidly and effectively carried out on a research area according to various geological parameters.
Owner:THE FIRST INST OF OCEANOGRAPHY SOA
Vapor deposition equipment and wafer heating carrier and heating method thereof
PendingCN114672789ACompensate for uneven heatingReduce uneven heatingChemical vapor deposition coatingWaferEngineering
The invention discloses vapor deposition equipment as well as a wafer heating platform deck and a heating method thereof. The vapor deposition equipment comprises a platform deck body, an ejector pin body and a heating device, the heating device is arranged in the ejector pin body; a through hole is formed in the carrying table body, and the ejector pin body penetrates through the through hole; the ejector pin body is used for bearing a wafer and placing the wafer on the upper surface of the carrying table body, the heating device heats the ejector pin body, and the ejector pin body and the carrying table body jointly transfer heat to the wafer. The heating device is additionally arranged in the ejector pin body, so that the ejector pin body is heated by the heating device, the ejector pin body and the carrying table body jointly transfer heat to the wafer, the ejector pin body can reduce heat lost in the through hole or make up the heat lost in the through hole, and then the non-uniform heating degree of the wafer on the carrying table body is reduced; or the phenomenon that the wafer is heated unevenly on the carrying table body is avoided, the forming speed of a film on the upper surface of the wafer can be increased, the thickness of the film is increased, and the film forming efficiency of the surface of the wafer is improved.
Owner:INST OF MICROELECTRONICS CHINESE ACAD OF SCI +1
Metal component detection method and device based on spectrum analysis technology
ActiveCN106908615AFast and convenient automated detection and analysisRealize non-contact measurementMaterial analysisRobotic armUltrashort pulse laser
The invention relates to a metal component detection method and device based on a spectrum analysis technology. The metal component detection device comprises a sampling robot, blowing equipment, a pulse laser, spectrum detecting equipment, spectrum analysis equipment and control equipment, wherein the ultrashort pulse output end of the pulse laser is opposite to a sample chamber; the ultrashort pulse output end of the pulse laser is aligned with a spectrum collection lens group in the spectrum detecting equipment; the air outlet of the blowing equipment is aligned with the sample chamber; the sample chamber comprises a tray and a transparent outer cover above the tray; the sampling robot comprises a first mechanical arm and a second mechanical arm. Through the adoption of the method and device, non-contact metal component analysis is realized through laser, automation process is realized through the sampling robot, artificial participation is not required, ultrashort pulse laser is adopted, and the device has good spectral characteristic, and is simple in structure, convenient to apply and suitable for large-scale promotion and application.
Owner:SHAOXING UNIVERSITY
Design method of rhombic grid hole hot air grate sand core
ActiveCN102527944APrecise positioningLower difficulty requirementFoundry mouldsFoundry coresEngineeringGravity center
The invention relates to a design method of a rhombic grid hole hot air grate sand core. The rhombic grid hole hot air grate sand core is characterized by consisting of a plurality of sand core units, wherein each sand core unit comprises a lower core head, an upper core head and a sand core body; the size and shape of the lower core head correspond to the size and shape of a cone frustum-shaped hole core of a corresponding porous core positioning general template for shaping; the shape and quantity of grate ventilation grid hole cores are determined according to the shape and quantity of designed grate ventilation grid holes; and each rhombic ventilation grid hole core consists of two regular triangles. Compared with the prior art, the method has the beneficial effects that: (1) according to the characteristic that the ventilation grid hole of a rhombic grid hole grate consists of two regular triangles, the cone frustum-shaped structure of a multi-hole-core positioning general template and a cone frustum-shaped lower core head which corresponds to the gravity centers of two regular triangles constituting a rhombic hole grid can be positioned accurately; and (2) due to the adoption of the cone frustum-shaped core head, the generality of the general template can be increased, and hot air furnace grates of other hole forms can be produced by using the multi-hole-core positioning general template.
Owner:ANSTEEL HEAVY MACHINERY CO LTD
Four-mode resonator loaded with high-impedance lines
The invention discloses a four-mode resonator loaded with high-impedance lines, and relates to the field of microwave passive devices. The resonator is composed of a dual-mode resonator and two symmetrically-distributed high-impedance lines connected with a transmission line, wherein the dual-mode resonator is a folding half-wave resonator, the two arms of a metal patch of the resonator are folded inward, the bottom center of the patch is provided with a via hole, and the two high-impedance lines are attached to the two sides of the dual-mode resonator symmetrically and connected with the transmission line. All the structures are printed on the front of a dielectric substrate, and the back of the substrate is completely covered by metal. The resonator overcomes the following defects: the existing ultra-wideband notch device needs multiple resonators to realize multiple notch stop bands, performances such as frequency selectivity and notch bandwidth need improvement, and the resonance structure can hardly apply to or be transplanted to different UWB systems of other radiation units.
Owner:UNIV OF ELECTRONICS SCI & TECH OF CHINA
Spectrum analysis system and spectrum analysis method for component detection
InactiveCN106680227AFast and convenient automated detection and analysisRealize non-contact measurementColor/spectral properties measurementsMetrologyPrincipal component analysis
The invention relates to a spectrum analysis system and a spectrum analysis method for component detection. The spectrum analysis system is applied to a metal component analysis device. The spectrum analysis equipment comprises a noise-reducing treatment module, a correcting and modeling module, a detecting and analyzing module and a communication module, wherein the noise-reducing treatment module is used for performing noise-reducing treatment on the spectrum data of a corrected metal sample and on the spectrum data of a detected metal sample; the correcting and modeling module is used for modeling with chemometrics software based on the spectrum data of the corrected metal sample to obtain a metal component measuring model; and the detecting and analyzing module is used for analyzing by using the metal component measuring model and the spectrum data of the detected metal sample. By adopting the technology, a correcting model for metal component analysis is established by combining chemometrics and modeling for selectively extracting information related to a sorted target and inhibiting influence of non-related characteristics and noise, so that influence on spectrum caused by various non-target factors can be effectively eliminated, and the technical effect of better spectral analysis is achieved.
Owner:SHAOXING UNIVERSITY
Fully automatic gas recovery and filling device and method
InactiveCN103115458BAvoid accidentsLower difficulty requirementRefrigeration componentsElectricityLow voltage
Owner:甘小琴 +1
Driving device for pulse laser
ActiveCN102610998BReduce special requirementsIncrease the lengthExcitation process/apparatusSemiconductor laser excitation apparatusCoaxial cablePulse parameter
Owner:SHANGHAI INST OF MICROSYSTEM & INFORMATION TECH CHINESE ACAD OF SCI
Flexible device transition device and preparation method and flexible device patch method
ActiveCN110556399AEasy to ThinningEasy to placeDecorative surface effectsSolid-state devicesEngineeringFlexible electronics
The invention relates to a flexible device transition device and preparation method and a flexible device patch method. The transition device comprises an IC chip and a transition substrate. The IC chip comprises an IC chip substrate, a circuit function layer formed on the IC chip substrate and a packaging layer. The packaging layer packages the IC chip substrate and the circuit function layer from at least the surface of the circuit functional layer and the side surface of the IC chip. A first surface to be patched with the substrate and a second surface corresponding to the first surface areformed on the IC chip. The transition substrate is adhered to the second surface of the IC chip through an adhesive layer. The flexible device transition device can facilitate back patch applicationof the IC chip and is directly applied to the manufacturing of flexible electronic products. The preparation of the packaging layer greatly protects the IC chip, reduces the requirements on storage conditions and avoids damage to the IC chip during transportation.
Owner:INST OF FLEXIBLE ELECTRONICS TECH OF THU ZHEJIANG
Ion concentration monitor for purifying blood
ActiveCN100460023CLower difficulty requirementGuarantee stabilityOther blood circulation devicesHaemofiltrationFrequency conversionGraphite
Owner:SWS HEMODIALYSIS CARE CO LTD
Novel optically designed fluorescent camera and imaging method thereof
InactiveCN112807096AOverlay AccurateHigh precisionTelevision system detailsDiagnostics using lightCMOSGrism
The invention discloses a novel optically designed fluorescent camera. The novel optically designed fluorescent camera comprises a fluorescent camera and an image processing host, wherein the fluorescent camera comprises a color CMOS photosensitive chip, a black-and-white CMOS photosensitive chip and a beam splitter prism; the beam splitter prism is used for projecting incident light onto the color CMOS photosensitive chip and the black-and-white CMOS photosensitive chip respectively; and the image processing host is used for processing images on the color CMOS photosensitive chip and the black-and-white CMOS photosensitive chip. The invention also discloses a corresponding imaging method. Through adoption of the novel optically designed fluorescent camera, superposition of double CMOS images can be more accurate. The double CMOS images are imaged by the same camera, so that the surgical accuracy is increased in comparison to an existing double-camera fluorescent detector.
Owner:ZHUHAI WEIERKANG BIOTECH
Auxiliary device and method used for controlling tongue-and-groove size manufacturing precision
InactiveCN106595426ALower difficulty requirementGuaranteed structural strengthMechanical measuring arrangementsEngineeringTongue and groove
The invention discloses an auxiliary device used for controlling tongue-and-groove size manufacturing precision. The auxiliary device comprises a magnetic angle iron (1), a calibrated scale (2), and an iron sheet (3). The magnetic angle iron (1) comprises a groove plate (4) and a scale plate (5), and the side edge of the scale plate (5) is provided with scales. The calibrated scale (2) is provided with a strong ferromagnetic device (6). The calibrated scale (2) is provided with the scales used to correspondingly extend the scales of the scale plate (5), and the calibrated scale is an elastic telescopic member. One surface of the calibrated scale (2) is provided with the iron sheet (3), which is a fixable movable member, and is disposed on the side of the magnetic angle iron (1) opposite to a bending direction, and is fixedly disposed on the calibrated scale (2) by a locking device (7). The invention also discloses a method used for controlling the tongue-and-groove size manufacturing precision. The auxiliary device and the method have advantages of simple structure, convenient use, and high measurement precision.
Owner:HUDONG ZHONGHUA SHIPBUILDINGGROUP
Cylindrical mirror lens and method for aligning cylindrical mirror buses
InactiveCN101520533BSo as not to damageImprove reliabilityMountingsLensCamera lensOptical processing
Owner:BEIHANG UNIV
A Four-mode Resonator Loaded with High Resistance Line
Owner:UNIV OF ELECTRONICS SCI & TECH OF CHINA
Feature extraction method and device
InactiveCN104268550BLess pickyWide applicabilityCharacter and pattern recognitionState of artFeature extraction
Owner:鲁路平
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