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31results about How to "Reduce structural design requirements" patented technology
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Method for realizing minisize camera automatic focusing and minisize camera thereof
InactiveCN101064779ALow costReduce structural design requirementsTelevision system detailsColor television detailsCamera lensControl signal
A method to realize auto focusing of micro camera and a micro camera are disclosed, and the camera includes enclosure, lens mounted before the enclosure, sensor which includes imaging sensitimeter and phase detecting unit mounted in the enclosure, controller which is used to calculate the adjusting distance and direction according to the detecting signal from sensor, the focusing buffer pool which can align the sensitizing surface and focusing surface of sensor automatically, the focusing buffer pool is location adjusting mechanism driven by electromagnetism, the movable end is connected with sensor, and the other end is mounted on the rear of enclosure, when it receives the control signal for adjusting location and direction output by controller, and drives the movable end to move, and drives the sensitizing surface move to the location of focusing surface of sensor. The invention driven by electromagnetism reduces the difficulty of phone structure and manufacturing technique, and reduces the manufacturing cost, which benefits for the promotion and popularity of photograph camera with auto focusing function.
Owner:ZTE CORP
Synergic action device of preventing breath heavily and expanding stability of airbleed inside stator of multistage axial flow air compresdsor
InactiveCN101092978AEasy to processReduce structural design requirementsPump componentsPumpsAxial compressorSuction stress
This invention discloses a stator internal gas-inducing efficient anti-surge steady expansion device of a multi-stage axial compressor composed of a stator, a gas-suction groove, a gas-inducing pipe and a gas-collecting chamber, in which the stator is stator blade in the multi-stage axial compressor, the groove, one or many, is placed in a region adjacent to flow separation existing on the surface of the stator suction face, the gas inducing pipe is in the stator blade and a ventilation pipe connecting suction pipes, the collecting chamber is set outside of the runner box and collects gas flows induced by the gas-inducing pipe after the suction groove absorbs small low energy gas flows, and the suction groove absorbs fluids of low energy on the surface of the stator suction side and transports them to the chamber and discharges them out of the system after mixed press.
Owner:BEIHANG UNIV
Electrical property prediction method of offset reflector antenna based on electromechanical coupling model
InactiveCN102788920ARealize the structureAccurately analyze the impactElectrical testingStructural deformationElectricity
The invention discloses an electrical property prediction method of an offset reflector antenna based on an electromechanical coupling model. The electrical property prediction method comprises the steps of: 1) establishing an antenna finite element model in I-DEAS; 2) analyzing in the I-DEAS to obtain the temperature distribution of each node of the finite element model of the offset reflector antenna; 3) reading a finite element model file in an Ansys file and computing structural deformation caused by temperature; 4) computing items of influence caused by reflector errors and feed source errors of the offset reflector antenna to aperture field amplitude-phase of the antenna; 5) computing the electrical property of the offset reflector antenna; and 6) judging whether design requirements are satisfied. The electrical property prediction method of the offset reflector antenna based on the electromechanical coupling model has the advantages that the influence of temperature on the structure of the offset reflector antenna can be accurately analyzed and the structural field and electromagnetic field coupling analysis of the offset reflector antenna is realized; and the influence of various structural errors to the working performance of the antenna is analyzed, the major structural factors can be found out, the reasonable requirement on structural precision can be given out according to actual demands, the development cycle is shortened and the development cost is reduced.
Owner:XIDIAN UNIV
Multifunctional star arrow adapter
InactiveCN105711856ARealize bearerAchieve protectionCosmonautic vehiclesCosmonautic partsExternal energyEngineering
The invention provides a multifunctional star arrow adapter which comprises an upper port, a lower port and a plurality of damp rods, wherein the upper port is used for connecting a satellite, and the lower port is used for connecting a carrier rocket. The star arrow adapter is mounted between the satellite and the carrier rocket, so that the thrust supplied by the rocket can be transferred, a structure bearing function can be achieved, a vibration isolating function can be achieved, and various vibrations and impact loads transferred from the rocket to the satellite can be isolated or reduced in a launching process, so that the dynamic environment of the satellite can be effectively improved, and the protection for the satellite can be realized. The multifunctional star arrow adapter is integrated with bearing and vibration isolating functions, is light in weight, is free from external energy supply and is suitable for aerospace engineering application.
Owner:NAT UNIV OF DEFENSE TECH
An electromechanical coupling model-based shaped reflector antenna electrical performance prediction method
ActiveCN106991210AAccurately assess the impact on electrical performanceRealize the structureDesign optimisation/simulationSpecial data processing applicationsElement modelEngineering
The invention provides an electromechanical coupling model-based shaped reflector antenna electrical performance prediction method. The method comprises the steps of determining a structure scheme of a shaped reflector antenna; building a finite element model of the structure of the shaped reflector antenna; calculating self-gravity deformation of the structure of the shaped reflector antenna; calculating impact terms of shaped surface error and feed source error of the shaped reflector antenna on antenna aperture field amplitude and phase position; calculating the electrical performance of the deformed shaped reflector antenna by using an electromechanical coupling model of the shaped reflector antenna; judging whether the result meets design requirements. The method can accurately analyze the influence of a gravity load on the structure of a shaped reflector antenna and achieve coupling analysis of the structure of a shaped reflector antenna and electric and magnetic fields. The method can analyze the influence of various kinds of structure error on working performance of an antenna, find out main structure factors, provide reasonable structure precision requirements according to actual requirements, shorten a development period and reduce development costs.
Owner:XIDIAN UNIV
Intelligent manipulator, bidirectional walking mechanism thereof and full-automatic intelligent vending device
PendingCN109272653AImprove work efficiencySave on pickupCoin-freed apparatus detailsApparatus for dispensing discrete articlesEngineeringManipulator
The invention relates to an intelligent manipulator, a bidirectional walking mechanism thereof and a full-automatic intelligent vending device, wherein the intelligent manipulator comprises a mountingsupport; a rotary base seat is arranged at the lower part of the mounting support; the mounting support can slide back and forth along the axial direction of the rotary base seat; the manipulators which can move towards or away from each other to clamp or loosen goods are arranged on the mounting support; the manipulators are positioned above the rotary base seat; and a goods supporting table forloading the goods is arranged on the rotary base seat. The invention aims to provide the intelligent manipulator, the bidirectional walking mechanism thereof and the full-automatic intelligent vending device which are arranged outside a vending machine, are convenient to mount and maintain, and have high goods picking efficiency.
Owner:山东便利客智能科技有限公司
Dedusting system of polishing chamber
InactiveCN104083969AEfficient removalEnsure safetyUsing liquid separation agentEngineeringWood processing
The invention discloses a dedusting system of a polishing chamber, and belongs to the technical field of wood processing. The dedusting system of the polishing chamber comprises a conveying belt, a polishing chamber, a dedusting chamber and a separating wall, wherein the dedusting chamber and the polishing chamber are separated by the separating wall; the conveying belt is positioned on the middle and lower section of the polishing chamber; the top of the dedusting chamber is provided with a spraying system comprising a water accumulation tank, a spraying pipeline and a spraying head; the water accumulation tank is positioned on the top of the dedusting chamber; the spraying pipeline is communicated with the water accumulation tank; the sprayer is installed at the outlet end of the spraying pipeline. According to the technical scheme, the enclosed polishing chamber is externally provided with the dedusting chamber, and dust in the polishing chamber is discharged into the dedusting chamber so as to achieve an effect of removing the dust in the polishing chamber effectively; the spraying system is arranged in the dedusting chamber, the dust discharged from the polishing chamber is sprayed into a water tank below, and is collected into the water accumulation tank, so that the safety of the dedusting chamber is ensured; the damage to the health of workers is avoided; meanwhile, the environmental pollution is reduced greatly.
Owner:QIANXINAN HONGSEN WOOD
End cover and first-stage integral recovery low-cost second-stage low-orbit carrier rocket
PendingCN113148230AHigh reuse valueImproved flight environmentCosmonautic vehiclesCosmonautic partsSatelliteStructural engineering
The invention discloses an end cover and first-stage integral recovery low-cost second-stage low-orbit carrier rocket which comprises a first-stage rocket body, a rocket sleeve cover and a second-stage rocket body, wherein the rocket sleeve cover comprises a barrel cover, an end cover shell section and an end cover, the barrel cover is arranged at the front end of the first-stage rocket body, and the barrel cover is used for containing the second-stage rocket body; the bottom of the barrel cover is provided with an adaptive support used for installing a second-stage rocket body, the inner wall of the barrel cover is provided with a sliding rail combination, the sliding rail combination is connected with the second-stage rocket body in a sliding fit mode, the front end of the second-stage rocket body is provided with a satellite adaptive support, and a satellite load is installed on the satellite adaptive support; the end cover is composed of a plurality of petals hinged to an end cover shell section, the multi-petal end cover is in a hemisphere shape after being folded, and opening and closing of the end cover are controlled through an end cover actuator; and a reverse thrust rocket is further arranged at the front end of the inner wall of the end cover shell section. According to the end cover and the first-stage overall recovery low-cost second-stage low-orbit carrier rocket, 100% overall recovery can be achieved, repeated use can be achieved after detection and evaluation, and the reuse value is higher.
Owner:精易兴航(北京)科技创新有限公司
Waterproof fisheye lens
The invention discloses a waterproof fisheye lens. The waterproof fisheye lens includes a first lens which is located on an outer side of a lens body and includes an outer edge; a first locking pressing ring which includes an inner end part and an outer end part, wherein the outer end part is fastened on the outer edge of the first lens and the inner end part is in close contact with the lens body, an annular step is formed on the outer edge of the first lens and includes an outer end face, an inner end face and a circumferential wall connecting the outer end face and the inner end face, and the outer end part of the first locking pressing ring includes a head fastened to the outer end face of the annular step and a base abutting against the circumferential wall of the annular step; firstultraviolet curing adhesive arranged at a joint of the inner end face of the annular step and the base of the outer end part of the first locking pressing ring; and a second ultraviolet curing adhesive arranged between the outer end face of the annular step and the head of the outer end part of the first locking pressing ring. According to the waterproof fisheye lens provided by the invention, material cost of the fisheye lens is saved, the structure is simple, and relatively good waterproof performance is achieved.
Owner:ZHONGSHAN UVATA OPTICAL
Non-coupling multi-dimensional force sensor overload protection method and device
PendingCN109708787AReduce structural design requirementsEasy to implementForce measurementMeasurement of force componentsEngineeringElastomer
The invention discloses a non-coupling multi-dimensional force sensor overload protection method and device. According to the method, on the basis of the position changes between a support end and a loading end of a multi-dimensional force sensor under different loads, overload protection is carried out by limiting a position change threshold between the support side and the loading end of the multi-dimensional force sensor. The device comprises a sleeve shell and a first limiting plate; the first limiting plate is fixedly connected with a loading platform of an elastomer of the multi-dimensional force sensor; protruding columns and grooves that cooperate with each other are arranged at the first limiting plate and the elastomer of the multi-dimensional force sensor respectively; hole shaft clearances are formed between the protruding columns and the grooves; and an axial gap is formed between the surrounding edge of the top surface of the first limiting plate and the bottom surface ofthe support frame of the multi-dimensional force sensor. With the overload protection device, overload capabilities of the multi-dimensional force sensor in all directions can be adjusted independently and the accurate force / torque overload protection can be realized.
Owner:HEFEI UNIV OF TECH
Intelligent manipulator, bidirectional walking mechanism thereof and full-automatic intelligent vending device
PendingCN109272652AImprove work efficiencyAvoid damageCoin-freed apparatus detailsApparatus for dispensing discrete articlesEngineeringManipulator
The invention relates to an intelligent manipulator, a bidirectional walking mechanism thereof and a full-automatic intelligent vending device, wherein the intelligent manipulator comprises a mountingsupport; a rotary base seat is connected to the lower part of the mounting support in a sliding manner; the manipulator capable of clamping or loosening goods is positioned above the rotary base seat; and a goods supporting table is positioned in the rotary base seat. The invention aims to provide the intelligent manipulator, the bidirectional walking mechanism thereof and the full-automatic intelligent vending device which are arranged outside a vending machine, are convenient to mount and maintain, and have high goods picking efficiency.
Owner:山东便利客智能科技有限公司
Composite startup and shutdown restart circuit
ActiveCN110958007AReduce structural design requirementsLow structural design costCircuit arrangementsElectronic switchingControl engineeringSwitching signal
The invention discloses a composite startup and shutdown restart circuit, which comprises a switch key, a switch control module, a power supply module and a restart control module. The output end of the switch key is connected with the switch control module and the restart control module, and the switch control module and the restart control module are connected with the power supply module. The switch control module is used for outputting a switch signal to the power supply module when the switch key is pressed down, and controlling the power supply module to be powered on / off, so that the equipment is correspondingly powered on / off. The restart control module is used for outputting a restart signal to the power supply module when the switch key is pressed for a long time, and controllingthe power supply module to stop supplying power so as to restart the equipment. The power supply module is used for receiving the switching signal or the restart signal and controlling the power supply state of the equipment according to the switching signal and the restart signal. By integrating the restart key and the startup and shutdown key, startup, shutdown and restart of the equipment areachieved through the switch key, limitation of equipment system software programs is avoided, and meanwhile an additional structure does not need to be added.
Owner:SHENZHEN XINGUODU PAYMENT TECH CO LTD
Speed adjusting method for direct-current brushless motor without position sensor
InactiveCN106059402ASmall sizeAccurate measurementSingle motor speed/torque controlElectronic commutatorsBrushless motorsClosed loop
The invention provides a speed adjusting method for a direct-current brushless motor without a position sensor. The method comprises the following steps: (1) inputting alternating-current 220V voltage via an alternating-current power supply and a driving board, and rectifying the voltage to output direct-current 310V voltage; (2) outputting, by a switching power supply, 3.3V, 5V or 12V voltage output by rectifying to a control end, an amplifying circuit or a sampling circuit of a singlechip, an insulated gate bipolar transistor or an intelligent power module to supply power; (3) meanwhile, connecting 310V direct-current voltage output by rectifying to the insulated gate bipolar transistor or the intelligent power module to drive the direct-current brushless motor; (4) sampling counter electromotive forces of three phases U, V and W of the motor by the sampling circuit, and amplifying signals by the amplifying circuit; (5) performing analog-digital conversion on the acquired current signals by an AD of the singlechip; and (6) analyzing the revolving speed and the position of a rotor by adopting a perception algorithm without position detection to carry out closed-loop control. The method at least has the advantages that the revolving speed of the direct-current brushless motor can be accurately adjusted, the structure design is simplified, the size of the motor is reduced, the requirement of the assembly process is low and the like.
Owner:苏州灵动智能装备有限责任公司
Power module, carrier and safety management method of power module
PendingCN113757551ALower requirementImprove space utilizationVessel mounting detailsVessel geometry/arrangement/sizeFiberMechanical engineering
The invention relates to the technical field of gas storage containers, and provides a power module, a carrier and a safety management method of the power module. The power module comprises at least one gas storage cylinder group. Each gas storage cylinder group comprises gas storage cylinders and a connecting assembly, wherein the gas storage cylinder group is provided with at least two gas storage cylinders. The gas storage cylindersin each gas storage cylinder group communicate with one another through the connecting assemblies, and the gas storage cylinder groups and / or the gas storage cylinders are arranged and combined according to a preset mode. The carrier comprises a carrier body and the power module. Compared with the prior art, the power module and the carrier with the power module have the advantages that by reducing the diameter of each single gas storage cylinder element and matching the configuration mode of the space in a passenger car, the requirement of the gas storage cylinders for the structural design of a car body is greatly reduced, and the space utilization rate is increased; and the design and forming process difficulty of a fiber laying layer can be reduced, the use amount of the carbon fibers can be reduced to a certain extent, and the gas storage density of the gas storage cylinders is reduced.
Owner:SHENZHEN XIWAN TECH CO LTD
Television voice camera control system and method
ActiveCN110113647AProtect privacy and securityImprove experienceTelevision system detailsColor television detailsCamera controlComputer hardware
The invention provides a television voice camera control system and method, and the method comprises the steps: collecting a key control signal input by a user, detecting the real-time working state of a voice camera, and outputting a control signal according to key control information and the real-time working state, thereby outputting a working voltage to the voice camera or cutting off the working voltage of the voice camera. According to the technical scheme, the power-on or power-off of the voice camera can be controlled according to the power-on control signal and the power-off control signal input by the user, so that the privacy security of the user is protected, and the user experience can be improved; meanwhile, compared with the prior art that the power-on and power-off can be controlled only by directly pulling out the wire, the technical scheme of the invention has the advantage of simple and reasonable operation.
Owner:深圳康佳电子科技有限公司
A Method of Underwater Target Location Based on Second-Order Interference
ActiveCN108414984BReduce structural design requirementsReduce processing requirementsPosition fixationSensor arrayFar distance
The invention discloses an underwater target positioning method based on second-order interference. The second-order interference theory of optical measurement is applied to underwater acoustic field detection to perform underwater target positioning; The order correlation function searches for the phase (time) delay of the sound source signal relative to the array element, and obtains the difference of the absolute linear distance between the sound source and the two array elements. For a multi-element array, the position of the sound source can be quickly and accurately searched by calculating the product of multiple second-order correlation functions. The positioning method of the present invention is not limited to "the distance between the array elements of the sensor array needs to meet the requirement of 1 / 2 wavelength", which greatly reduces the requirements for array design and processing; and the output signal-to-noise ratio of a single sensor array element in the present invention is far less than 1 It still shows good positioning ability, which is beneficial to the detection and positioning of long-distance targets. Therefore, the present invention has important application value for the underwater target positioning detection of the underwater acoustic sensor array.
Owner:HUBEI UNIV OF TECH
A kind of acrylonitrile-styrene copolymer material and preparation method thereof
The invention discloses an acrylonitrile-styrene copolymer material for promoting ultrasonic attenuation and a preparation method thereof, belonging to the technical field of polymer materials. The acrylonitrile-styrene copolymer material for promoting ultrasonic attenuation according to the present invention comprises the following components in parts by weight: 40-90 parts of acrylonitrile-styrene resin and 10-50 parts of ultrasonic attenuation agent; the ultrasonic attenuation agent comprises acrylonitrile -Styrene-Acrylate Copolymer, Acrylonitrile-Styrene-Butadiene Copolymer, Acrylonitrile-Styrene-Ethylene-propylene Rubber Copolymer, Acrylate-Styrene-Butadiene Copolymer, Styrene-Ethylene- At least one of butene-styrene copolymers. The acrylonitrile-styrene copolymer material prepared by the formula of the present invention can make the radar wave signal of false alarm to be lost in the transmission process, and can be used to prepare the grille, bumper and car logo of the vehicle equipped with the ultrasonic radar wave detector and other auto parts.
Owner:KINGFA SCI & TECH CO LTD
Wavelength selecting switch with gravity acceleration sensor and control method
ActiveCN102608709BReduce structural design requirementsLow manufacturing process requirementsOptical light guidesUltrasound attenuationEngineering
Owner:GUANGXUN SCI & TECH WUHAN
A TV voice camera control system and method
ActiveCN110113647BEasy to operateSimple structureTelevision system detailsColor television detailsCamera controlKey pressing
Owner:深圳康佳电子科技有限公司
Cantilever magnetic probe rod for helicopter
PendingCN112415612AQuick installationFor quick maintenanceElectric/magnetic detection for transportEngineeringMachine
The invention belongs to the helicopter structure design technology, and relates to a cantilever magnetic probe rod for a helicopter. The cantilever magnetic probe rod comprises a front-section proberod, a middle-section probe rod, a rear-section probe rod, connecting pieces, a covering cap, a front cover, a rear cover and a pull rod assembly, wherein the front-section probe rod, the middle-section probe rod and the rear-section probe rod are sequentially connected together through connecting pieces, the front cover and the rear cover are arranged at the front end of the front section probe rod and the tail end of the rear section probe rod respectively, covering caps are arranged at openings in a plurality of positions, used for arranging electromagnetic detection equipment, of the frontsection probe rod and the middle section probe rod respectively, and the pull rod assembly connected with a machine body is arranged at the front ends, close to the connecting pieces, of the rear-section probe rod. According to the cantilever magnetic probe rod, the design difficulty of a cantilever structural part with a large length-diameter ratio is solved, the structural weight is reduced, the assembling manufacturability is improved, the machining period is shortened, the cost is reduced, the cantilever magnetic probe rod is connected with a machine body in a bolt connection mode, and rapid mounting, maintenance and dismounting of the probe rod can be achieved.
Owner:HARBIN
A grinding room dust removal system
InactiveCN104083969BEfficient removalEnsure safetyUsing liquid separation agentWood processingWaste management
The invention discloses a dedusting system of a polishing chamber, and belongs to the technical field of wood processing. The dedusting system of the polishing chamber comprises a conveying belt, a polishing chamber, a dedusting chamber and a separating wall, wherein the dedusting chamber and the polishing chamber are separated by the separating wall; the conveying belt is positioned on the middle and lower section of the polishing chamber; the top of the dedusting chamber is provided with a spraying system comprising a water accumulation tank, a spraying pipeline and a spraying head; the water accumulation tank is positioned on the top of the dedusting chamber; the spraying pipeline is communicated with the water accumulation tank; the sprayer is installed at the outlet end of the spraying pipeline. According to the technical scheme, the enclosed polishing chamber is externally provided with the dedusting chamber, and dust in the polishing chamber is discharged into the dedusting chamber so as to achieve an effect of removing the dust in the polishing chamber effectively; the spraying system is arranged in the dedusting chamber, the dust discharged from the polishing chamber is sprayed into a water tank below, and is collected into the water accumulation tank, so that the safety of the dedusting chamber is ensured; the damage to the health of workers is avoided; meanwhile, the environmental pollution is reduced greatly.
Owner:QIANXINAN HONGSEN WOOD
Electrical property prediction method of offset reflector antenna based on electromechanical coupling model
InactiveCN102788920BRealize the structureAccurately analyze the impactElectrical testingStructural deformationElectricity
The invention discloses an electrical property prediction method of an offset reflector antenna based on an electromechanical coupling model. The electrical property prediction method comprises the steps of: 1) establishing an antenna finite element model in I-DEAS; 2) analyzing in the I-DEAS to obtain the temperature distribution of each node of the finite element model of the offset reflector antenna; 3) reading a finite element model file in an Ansys file and computing structural deformation caused by temperature; 4) computing items of influence caused by reflector errors and feed source errors of the offset reflector antenna to aperture field amplitude-phase of the antenna; 5) computing the electrical property of the offset reflector antenna; and 6) judging whether design requirements are satisfied. The electrical property prediction method of the offset reflector antenna based on the electromechanical coupling model has the advantages that the influence of temperature on the structure of the offset reflector antenna can be accurately analyzed and the structural field and electromagnetic field coupling analysis of the offset reflector antenna is realized; and the influence of various structural errors to the working performance of the antenna is analyzed, the major structural factors can be found out, the reasonable requirement on structural precision can be given out according to actual demands, the development cycle is shortened and the development cost is reduced.
Owner:XIDIAN UNIV
Method for realizing minisize camera automatic focusing and minisize camera thereof
InactiveCN100556080CLow costReduce structural design requirementsTelevision system detailsColor television detailsCamera phoneCamera lens
A method for realizing automatic focusing of a miniature camera and the miniature camera thereof, the miniature camera includes a housing, a lens installed at the front end of the housing, a sensor including an imaging photosensitive device and a phase detection unit installed in the housing, and the adjustment distance is calculated according to the sensor detection signal and the direction controller and the focus adjustment mechanism for automatically aligning the photosensitive surface of the sensor with the focal plane, the focus adjustment mechanism is an electromagnetically driven position adjustment mechanism, its movable end is connected with the sensor, and the other end is fixed at the rear of the housing end, after receiving the control signal output by the controller to adjust the position and direction, drive its movable end to move, and drive the photosensitive surface of the sensor to move to the position of the focal plane. The invention adopts electromagnetic drive, which reduces the difficulty in the structural design and production process of the camera phone, further reduces the production cost of the phone, and is beneficial to the popularization and popularization of the camera phone with the auto-focus function.
Owner:ZTE CORP
An entity isolation device and method for a control panel of a nuclear power plant
ActiveCN113257447BIncrease flexibilitySolve problems such as installation difficultiesMan-machine nuclear interfaceNuclear energy generationNuclear plantKeel
The invention belongs to the field of nuclear power plant instrument control system and main control room control panel, and specifically relates to a nuclear power plant control panel physical isolation device and method, the device includes external incoming cables, terminal sets, closed metal wire slots, and metal hoses a. Metal hose b. Isolation keel and panel equipment; among them, the external incoming cable is connected to the incoming terminal of the terminal group, and the outgoing terminal of the terminal group is respectively connected to the closed metal trunking and the metal hose a, and the closed metal trunking It is connected with metal hose b, metal hose a and metal hose b are connected with one end of the isolation keel, and the other end of the isolation keel is connected with the panel equipment. The physical isolating device of the present invention utilizes the form of keel and detachable metal plate that comes with the equipment, which saves installation space, solves the problems of difficult installation of traditional isolating devices, reduces the requirements for the design of the plate structure, and shortens the processing and manufacturing cycle of the plate. Save on implementation costs.
Owner:CHINA NUCLEAR POWER ENG CO LTD
Physical isolation device and method for control panel of nuclear power plant
ActiveCN113257447AResolve coherenceResolve integrityMan-machine nuclear interfaceNuclear energy generationNuclear plantNuclear power
The invention belongs to the field of control panels of instrument control systems and main control rooms in nuclear power plants, and particularly relates to a physical isolation device and method for a control panel of a nuclear power plant. The device comprises an external wire inlet cable, a wiring terminal set, a closed metal wire groove, a metal hose a, a metal hose b, an isolation keel and panel surface equipment, wherein the external wire inlet cable is connected with the wire inlet end of the wiring terminal set, the wire outlet end of the wiring terminal set is respectively connected with the closed metal wire groove and the metal hose a, the closed metal wire groove is connected with the metal hose b, the metal hose a and the metal hose b are connected with one end of the isolation keel, and the other end of the isolation keel is connected with the panel surface equipment. According to the physical isolation device, by means of the keel and a detachable metal plate, installation space is saved, the problem that a traditional isolation device is difficult in engineering installation is solved, the structural design requirement for a panel body is reduced, the machining and manufacturing period of the panel body can be shortened, and implementation cost is saved.
Owner:CHINA NUCLEAR POWER ENG CO LTD
Wavelength selecting switch with gravity acceleration sensor and control method
The invention relates to a wavelength selecting switch with a gravity acceleration sensor and a control method. The wavelength selecting switch is provided with an optical system, a switching attenuation unit, a switching attenuation control unit, a gravity acceleration sensor and a microprocessor, which are arranged in a main body, wherein the switching attenuation control unit is connected with the switching attenuation unit; a signal input end of the microprocessor is connected with the gravity acceleration sensor; and a signal output end of the microprocessor is connected with the signal input end of the switching attenuation control unit. The method comprises the following steps: sending a signal to the microprocessor by the gravity acceleration sensor; treating, storing, comparing and judging the signal by the microprocessor and outputting acceleration values after being changed in all directions; and controlling the switching attenuation unit by the switching attenuation control unit according to the received values. The wavelength selecting switch provided by the invention is simple in structure, low in cost and easily realized. The wavelength selecting switch can be applied to any optical communication device which is similar to the wavelength selecting switch, has a built-in switching attenuation unit and is based on a free space platform optical system. The problem of related index change, such as insertion loss, and the like, caused by different placing states or running states, is efficiently solved by using the wavelength selecting switch.
Owner:GUANGXUN SCI & TECH WUHAN
Fuel switch
InactiveCN101892928BReduce the burden onReduce structural design requirementsLiquid degasificationMachines/enginesFiltrationFuel tank
The invention provides a fuel switch of a fuel tank for an internal-combustion engine. The fuel switch comprises a switch body, a switch component, a oil-charging component, a fixedly-connected flange, an oil-gas separator, a fuel fine filter filtration core and a fine filtration oil cup, and is characterized in that: the oil-gas separator and the body of the switch are integrated into a whole, and are positioned above the fuel fine filter filtration core; and the width of an inner cavity of the oil-gas separator is no less than 10mm, the height is no less than 20mm and the length is no less than 25mm.
Owner:ZHEJIANG FAI ELECTRONICS
A Method for Predicting Electrical Performance of Shaped Reflector Antenna Based on Electromechanical Coupling Model
ActiveCN106991210BAccurately assess the impact on electrical performanceRealize the structureDesign optimisation/simulationSpecial data processing applicationsElement modelEngineering
The invention provides an electromechanical coupling model-based shaped reflector antenna electrical performance prediction method. The method comprises the steps of determining a structure scheme of a shaped reflector antenna; building a finite element model of the structure of the shaped reflector antenna; calculating self-gravity deformation of the structure of the shaped reflector antenna; calculating impact terms of shaped surface error and feed source error of the shaped reflector antenna on antenna aperture field amplitude and phase position; calculating the electrical performance of the deformed shaped reflector antenna by using an electromechanical coupling model of the shaped reflector antenna; judging whether the result meets design requirements. The method can accurately analyze the influence of a gravity load on the structure of a shaped reflector antenna and achieve coupling analysis of the structure of a shaped reflector antenna and electric and magnetic fields. The method can analyze the influence of various kinds of structure error on working performance of an antenna, find out main structure factors, provide reasonable structure precision requirements according to actual requirements, shorten a development period and reduce development costs.
Owner:XIDIAN UNIV
A sports track pavement material and preparation method thereof
InactiveCN106630772BReduce pollutionPromote environmental protectionClimate change adaptationGround pavingsExpanded clay aggregateBituminous materials
The invention relates to an athletic-track paving material and a preparation method thereof. The material is prepared from the following components: 100 parts of aggregate and 6 to 8 parts of asphalt, wherein the aggregate is prepared from the following components in percentage by volume: 25 to 52 percent of coarse aggregate, 42 to 75 percent of rubber powder and 6 to 8 parts of glass bead; the coarse aggregate is prepared from the following components in percentage by volume: 30 to 50 percent of haycite and 50 to 70 percent of rubber particle. All the components of the aggregate are uniformly mixed at 110 DEG C, an obtained first mixture is agitated with an asphalt material formed at 150 DEG C, and an obtained second mixture is made into the athletic-track paving material; the pollution in the material self and a construction process is little; the environmental protection performance is favorable; the athletic-track paving material has properties of being good in flatness, resistant to wear, wide in hardness range, appropriate in elasticity, excellent in shock absorption performance, capable of being applied in an all-weather manner and stable in physical performance, and the like, has quite low requirements on a device, personnel and structural design when being used for track surfacing, is simple in construction technique, is convenient to popularize and apply, and is easier in the control of construction quality; the cost is decreased; moreover, the material is convenient to repair and maintain when being used for the track surfacing, and can be recycled; a long-term environmental problem does not exist.
Owner:CHONGQING UNIV
HUD optical path system that can be used with polarized sunglasses and eliminates ghosting
PendingCN109445099AShorten the light pathReduce structural design requirementsOptical elementsDriver/operatorLight reflection
The invention relates to the technical field of HUD, and specifically discloses an HUD optical path system that can be used with polarized sunglasses and eliminates ghosting. The HUD optical path system includes a light source module and a reflection module, wherein the light source module emits P polarized light; and the reflection module includes a reflector module arranged in the HUD and an automobile windshield which can reflect P light and transmit S light. The HUD optical path system that can be used with polarized sunglasses and eliminates ghosting has the advantages of adopting the automobile windshield with a three-layer structure including at least glass inner surface, P light reflection layer and glass outer surface, thus being able to reflect P light and transmit S light whilethe P light emitted from HUD is not filtered when a driver wears the sunglasses and the image does not become darker, so that observation of the image is not influenced, and having no demand for the inner and outer surface angles of the windshield, so that the windshield can be parallel glass, and the manufacturing difficulty is reduced and the cost is lower. Besides, the windshield reflecting theP light coordinates with the HUD emitting the P light, so that ghosting does not occurs during image projection, and the requirement for the optical path and structural design inside the HUD is lower.
Owner:FORYOU MULTIMEDIA ELECTRONICS
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