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56results about How to "Good anti-electromagnetic interference" patented technology
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Plug connector assembly having improved Anti-emi performance
ActiveUS20150288107A1Improve performanceImprove sealingElectrically conductive connectionsCoupling device detailsEngineeringMechanical engineering
An plug connector assembly (1) includes a mating member (10) including a front mating end (101) and a rear mating end (102), a cable (30) electrically connected with the mating member, a first shell (50) formed by sheet metal drawing and having a closed circumference, a second shell (60) formed by sheet metal drawing and having a closed circumference. The first shell includes a first front end (51) telescoped with the rear mating end, and a first rear end (52) opposite to the first front end. The second shell (60) includes a second front end (61) telescoped with the first rear end, and a second rear end (62) opposite to the second front end and telescoped on the cable.
Owner:FOXCONN INTERCONNECT TECH LTD
Multifunctional intelligent distillation instrument
InactiveCN102553666AGentle rise in temperatureAvoid burstingLaboratory glasswaresWater in oilDistillation
The invention discloses a multifunctional intelligent distillation instrument. The distillation instrument comprises a shell, a support, heating devices and a cooling device, wherein the heating devices are a plurality of relatively independent heating units, and each heating unit comprises a heating jacket, a heating bar, a heating bowl and a distillation bottle; the heating bowl is arranged in a heating box, the open end of the upper part of the heating bowl is provided with a stove port, and the distillation bottle is arranged in the stove port; the heating jacket is fixed on the periphery of the heating bowl; and the distillation instrument is also provided with a measurement and control device, a temperature sensor is fixed on the top of each heating bowl and connected with a control circuit board through a signal wire and transfers heating temperature to a control chip on the control circuit board, and a liquid level sensor is fixed on a console and senses the liquid level state in a volumetric flask through an optical fiber. The instrument can be widely applied to distillation treatment of projects of volatile phenol, cyanide, ammonia nitrogen, Kjeldahl nitrogen, water in oil and the like in various chemical laboratories requiring distillation treatment in environment friendliness, disease control, water supply and drainage, colleges, research institutions, industrial enterprises and the like.
Owner:山东益源环保科技有限公司
Automotive tire pressure monitoring method based on tyre impedance and apparatus thereof
InactiveCN101348059AGood anti-electromagnetic interferenceImprove heat resistanceTyre measurementsCapacitanceElectrical resistance and conductance
The invention discloses an automobile tire pressure monitoring method based on tire impedance and a device thereof, which embeds a surface acoustic wave resonator into the interior of a tire and takes a capacitor and a resistor of the tire formed by tire rubber and steel wires as external connection impedance load of the surface acoustic wave resonator. The change of the state of the tire leads to the change of the tire impedance; the change of the tire impedance leads to the change of the resonance frequency of the surface acoustic wave resonator; the surface acoustic wave resonator can generate resonance in virtue of external exciting pulses to passively and wirelessly send resonance frequency signals out, thus realizing the wireless and passive detection of the state of the tire. In the detection process of the state of the tire, different steel wires are connected with a plurality of different surface acoustic wave resonators to form a plurality of surface acoustic wave resonators with different external connection load impedances and the combination of the resonance frequency of a plurality of surface acoustic wave resonators realizes the detection of the states of the tire such as pressure, temperature, abrasion, aging, etc.
Owner:GUILIN UNIV OF ELECTRONIC TECH
Optical acceleration sensor based on Fresnel diffraction micr-lens
InactiveCN1743850AHigh sensitivityGood anti-electromagnetic interferenceAcceleration measurement using interia forcesNavigation by speed/acceleration measurementsControl systemFixed frame
This invention discloses optical acceleration sensor based on Fresnel diffraction lens, which contains optical fiber, glass substrate, Fresnel diffraction micro lens, micro reflection film, micro quality block, micro balance spring and casing, wherein the micro reflection film parallel set with Fresnel diffraction micro lens with miniature gap, whose opposite side coated with metal reflection film, another side worked out an acceleration sensitive micro quality block, micro reflection film connected with fixed frame by four plane micro spring, optical fiber fixed the focus point of Fresnel diffraction micro lens for transmitting light, the external acceleration makes micro quality block driving micro reflection film to generate displacement, to change the light strength of focus of Fresnel diffraction micro lens, the acceleration can be tested by testing the change of light strength in optical fiber. Said invention can be used in aircraft control system and other fields demanding high precision sensing and high anti electromagnetic interference.
Owner:XI AN JIAOTONG UNIV
High-temperature resistant FBG (fiber bragg grating) sheet type strain sensor and manufacturing method thereof
InactiveCN102645176AHigh temperature resistantCorrosion resistantCladded optical fibreUsing optical meansGratingFiber Bragg grating
The invention discloses a high-temperature resistant FBG (fiber bragg grating) sheet type strain sensor and a manufacturing method thereof. The strain sensor consists of an FBG, a polyimide film, an armored cable and an optical fiber connector, wherein the FBG is connected with the polyimide film; the armored cable is connected with the FBG; the optical fiber connector is connected with the armored cable; and when the strain of a structural component is monitored, the surface of the monitored object needs to be milled by abrasive paper, and the polyimide and FBG composite sheet is stuck on the monitored object with adhesives. The method adopts a polyimide curing technology and comprises the following steps of: sealing the FBG and polyimide into a mould, and organically combining through heating, curing and cooling to form a polyimide and FBG composite sheet; leading out the armored cable from the end part of the polyimide and FBG composite sheet; and sticking the polyimide and FBG composite sheet on the surface of the structural component to be monitored by use of high-temperature resistant adhesives. The strain sensor disclosed by the invention resists high temperature, has good durability and high measurement accuracy, and is in quasi-distributed arrangement, free from electromagnetic interference and convenient to construct.
Owner:HARBIN INST OF TECH
Plug connector assembly having improved anti-EMI performance
ActiveUS9450342B2Improve performanceImprove sealingCoupling device detailsTwo-part coupling devicesEngineeringMechanical engineering
An plug connector assembly (1) includes a mating member (10) including a front mating end (101) and a rear mating end (102), a cable (30) electrically connected with the mating member, a first shell (50) formed by sheet metal drawing and having a closed circumference, a second shell (60) formed by sheet metal drawing and having a closed circumference. The first shell includes a first front end (51) telescoped with the rear mating end, and a first rear end (52) opposite to the first front end. The second shell (60) includes a second front end (61) telescoped with the first rear end, and a second rear end (62) opposite to the second front end and telescoped on the cable.
Owner:FOXCONN INTERCONNECT TECH LTD
Type-C anti-EMI plug connector
InactiveCN105633732AReduce distractionsGood anti-electromagnetic interferenceCouplings bases/casesCoupling protective earth/shielding arrangementsElectrically conductiveElectromagnetic interference
The invention discloses a Type-C anti-EMI plug connector, which comprises an upper terminal module, a lower terminal module, an insulating body and a shielding housing, wherein the upper terminal module comprises an upper terminal base and a plurality of first conductive terminals; the lower terminal module comprises a lower terminal base and a plurality of second conductive terminals; the insulating body comprises an upper shell and a lower shell; the upper shell is combined with the lower shell to form an insertion space; a plurality of through holes are arranged at the front ends of the upper shell and the lower shell at intervals; a two-way elastic contact arm is inlaid in the edge of each through hole and comprises a fixed end and a free end; each fixed end is inlaid in the edge of the corresponding through hole; each free end comprises a first contact part and a second contact part; and the shielding housing sleeves the outside of the insulating body. Therefore, a plurality of two-way elastic contact arms are inlaid into the front ends of the upper shell and the lower shell; the two-way contact design can guide noise at the shortest distance; an efficient anti-electromagnetic interference effect is obtained; furthermore, the structure is simple; and automatic integral molding and assembling are facilitated.
Owner:孙开宝
Cable for nuclear magnetic resonance instruments
PendingCN108281222ASmall outer diameterStrong signal transmission abilityClimate change adaptationFlexible cablesCopper wireControl line
The invention discloses a cable for nuclear magnetic resonance instruments, and belongs to the technical field of special wires and cables for medical instruments. The cable comprises a cable core, aninner braided layer, an outer braided layer, an isolation layer and a sheath layer. The inner braided layer, the outer braided layer, the isolation layer and the sheath layer are sequentially arranged outside the cable core, the cable core comprises a shielding layer, control lines and power lines, the control lines and the power lines are positioned in the shielding layer, the inner braided layer is positioned outside the shielding layer, tin-plated copper wires are braided to form the inner braided layer, tin-plated copper wires are braided to form the outer braided layer, the isolation layer is made of isolation paper, and the sheath layer is made of polyurethane and is extruded and coated outside the isolation layer by means of armor extrusion. The cable has the advantages that the cable is excellent in dielectric ability, the outer diameter of the cable core can be reduced, and the stability of dielectric constants and the excellent signal transmission capacity can be guaranteed;the cable is flexible and is excellent in electromagnetic interference resistance; the cable is high in strength and elastic modulus, is excellent in low-temperature resistance and alcohol tolerance,is excellent in resistance to chemical corrosion of ETO (ethylene oxide) and the like and is perfect in ultraviolet radiation resistance.
Owner:SUZHOU CABLEPLUS PHOTOELECTRIC TECH
Passive temperature test system for key point of primary equipment in substation
InactiveCN105509908ALow priceImprove work efficiencyThermometer detailsCo-operative working arrangementsEmbedded systemInformation analysis
The invention discloses a passive temperature test system for the key point of primary equipment in a substation. The system comprises a UHF-RFID electronic tag, a reader and a background management and analysis system. The passive electronic tag is attached to an equipment temperature detection point. An operator carries the hand-held reader to conveniently read the actual temperature of the equipment temperature detection point. The hand-held reader transmits the temperature information to a background server in the serial communication manner. The temperature information analysis of the electronic tag is realized based on the background system software in combination with the network communication technology, the database management technology and the like. Meanwhile, the current state information of the equipment is automatically provided.
Owner:ZHAOTONG POWER SUPPLYING BUREAU OF YUNNAN POWER GRID +1
Aluminum alloy structure micro-damage detection system and method
InactiveCN104931510ASmall sizeLight in massOptically investigating flaws/contaminationGratingPhotodetector
The invention discloses an aluminum alloy structure micro-damage detection system and method. The system comprises a signal generator producing two consecutive first and second sinusoidal signals synchronously and a low-frequency oscillator, a high-frequency oscillator and a fiber grating sensor which are arranged on the upper surface of an aluminum alloy structure to be detected; the first sinusoidal signal is amplified through a power amplifier before being transmitted to the low-frequency oscillator to produce low frequency vibration excitation; the second sinusoidal signal is transmitted to the high-frequency oscillator to produce high frequency ultrasonic excitation; the low frequency vibration excitation and the high frequency ultrasonic excitation are mixed to generate a non-linear response signal to transmit to the fiber grating sensor; an optical signal generated by an ASE light source is transmitted to the fiber grating sensor, and the reflected optical signal and the non-linear response signal are transmitted to a photodetector; the photodetector converts the received signal into a voltage signal, the voltage signal is transmitted to a data processing device for Fourier transform, and the aluminum alloy plate micro crack and damage detection is implemented by judging whether the modulation side frequency of the signal appears or not after Fourier transform.
Owner:SHANDONG UNIV
Fiber grating temperature and humidity sensor and temperature and humidity measurement system
ActiveCN108318062AHigh measurement accuracyLarge measuring rangeConverting sensor output opticallyFiberGrating
The invention discloses a fiber grating temperature and humidity sensor and a temperature and humidity measurement system. The sensor comprises a fiber core, a covering and a protective sleeve, the covering sleeves the fiber core, the fiber core comprises a first fiber core segment and a second fiber core segment, and the covering comprises a first layer segment corresponding to the first fiber core segment and a second layer segment corresponding to the second fiber core segment; the protective sleeve sleeves the second layer segment, the first fiber core segment is carved with a first fibergrating, and the second fiber core segment is carved with a second fiber grating; the covering employs a cycloolefin polymer; and the protective sleeve is made of polymethyl methacrylate. The temperature and humidity measurement system comprises a light source, a collimating lens, the fiber grating temperature and humidity sensor, a photoelectric convertor and a signal processing circuit. The temperature and humidity measuring precision and sensitivity of the sensor are improved, the sensor also has advantages of anti- electromagnetic interference, high measuring precision, high response speedand lower equipment cost, and the temperature and humidity of the working environment of an optical inductor are monitored accurately.
Owner:YUNNAN POWER GRID CO LTD ELECTRIC POWER RES INST
Force measurement device applied to anti-seismic vibration test
InactiveCN108918005AReduce vibrationAvoid destructionApparatus for force/torque/work measurementVibration testingMeasurement deviceData acquisition
The invention discloses a force measurement device applied to an anti-seismic vibration test. The device comprises an acceleration sensor, a battery arranged around the acceleration sensor and a circuit module arranged in the battery; at least one storage card is detachably connected into the circuit module, and the acceleration sensor is powered by the battery and a measurement signal of the acceleration sensor is transmitted and stored into the storage card in the circuit module. According to the force measurement device provided by the invention, the acceleration sensor, a power supply andthe storage card used for storing test data are combined to form a structural component running independently, cables such as a power line and a data line stretching to the outside can be omitted, thedamage of a cable outlet to structure leakproofness is avoided, the additional weight is reduced, configuration of multiple expensive data collection devices cannot be needed, configuration of the additional power supply adapter is not needed, the debugging work such as impedance matching on the site is not needed either, a common card reader can be used after the storage card is taken down afterdata collection, and a quantity of capital and time can be saved.
Owner:BEIJING NORMAL UNIVERSITY
Double-cladding optical fiber temperature sensor
InactiveCN101482433AImprove reliabilityGood repeatabilityThermometers using physical/chemical changesFiberDouble-clad fiber
The invention discloses a double cladding optical fiber temperature sensor, which comprises a double cladding sensing segment with length of 2-6mm consisted of a fiber core, an inner cladding and an outer cladding on the step type optical fiber and a device for fixing the outer cladding; the inner cladding of the sensing segment with outer diameter of 11-20um is formed by partly eating off the original cladding; and the outer cladding is formed by coating polymer material on the inner cladding. Compared with the current optical fiber sensors, the invention not only has the advantages of good insulating property and electromagnetic interference prevention, but also has the advantages of simple structure, low manufacturing cost and low signal acquisition and conversion cost; moreover, under a certain condition, while the environment temperature changes for 10 degrees centigrade, the light power output by the sensor can change for -50dB; therefore, the invention is especially suitable for temperature alarm, can be widely used for remote temperature sensing and alarming in the places of petroleum producing, processing and storing, transformer station and inner part of large scale transformer.
Owner:SOUTH CHINA UNIV OF TECH
Data cable connector capable of freely rotating 360 degrees and connection method
InactiveCN106848790AOverall stabilitySmall sizeCoupling device detailsFlexible/turnable line connectorsData linesElectrical and Electronics engineering
The invention discloses a 360-degree freely rotatable data line connector and a connection method, which include a U-shaped base, the U-shaped base includes two mutually symmetrically connected bending parts, and a 360-degree free-rotatable data line connector. The connector also includes a first connection port disposed at the junction of the two bending parts, a rotating shaft penetrating through the two bending parts, and a rotating conversion head connected to the rotating shaft, the rotating conversion head includes a connection The rotary conversion head base on the rotation axis, the second connection port connected with one end of the rotary conversion head base, and the third connection port connected with the other end of the rotary conversion head base. By connecting the two connection ports on the base of the rotary conversion head by means of a rotating shaft, the 360-degree free rotation and switching of the connection ports is realized. The whole is stable, small in size and easy to carry.
Owner:YELLOWKNIFE DATA CABLE CO LTD
Electric connector
InactiveCN1812206ANice appearanceGood anti-electromagnetic interferenceCoupling protective earth/shielding arrangementsManufacturing cost reductionElectromagnetic interference
This invention provides a kind of electric connector. It concludes: a plastic stand, on which is arranged with a connecting slot and many terminals. Each terminal is arranged with a pin part which extends out of the plastic stand; a metal shell which uses aluminium to machining integrative shaping by extruding. It forms an outer casing without joints, which coats the plastic stand; at least a clip component which sets a fixing part and at least a clip spring sheet. It is assembled and fixed in the plastic stand through the fixing part. The clip spring sheet is positioned in the connecting slot of plastic stand. There is a protuberant clip part close to the end. The clip part is used to clip a clamping hole of transmission line joint; at least a ground connecting component which is arranged with a locating part and at least a ground connecting spring sheet. It is located at the plastic stand through the locating part and connected with metal shell. Each ground connecting spring sheet is in the connecting slot.
Owner:TOP YANG TECH ENTERPRISE CO LTD
Airplane surface pressure detection system
InactiveCN105841859AReduce weightSave spaceForce measurement by measuring optical property variationFiberJet aeroplane
The invention discloses an airplane surface pressure detection system and belongs to the airplane pressure detection technology field. The airplane surface pressure detection system comprises a sheath, a fiber, a sensitive diaphragm, a photoelectric coupler, a laser device, a wavelength division multiplexer and a demultiplexer, wherein the sheath comprises an outer sheath and an inner sheath, the sensitive diaphragm is arranged between the outer sheath and the inner sheath, a reflection chamber is arranged between a side face of the sensitive diaphragm close to the inner sheath and the inner sheath, one end of the fiber is connected with the laser device, the other end is connected with the photoelectric coupler, multiple branch fibers are arranged between two ends of the fiber, the other ends of the branch fibers correspond to the reflection chamber, end faces of the branch fibers corresponding to the reflection chamber are plated with reflection layers, the wavelength division multiplexer is arranged at an output end of the laser device, and the demultiplexer is arranged at an input end of the photoelectric coupler. The system is advantaged in that weight reduction of an aircraft can be facilitated, the space is saved, design is simplified, and stealth and anti-electromagnetic interference of an airplane are facilitated.
Owner:XIAN AIRCRAFT DESIGN INST OF AVIATION IND OF CHINA
Sensor structure used for Doppler flow instrument and assembly method thereof
ActiveCN105928576AIncrease output powerImprove energy conversion efficiencyVolume/mass flow measurementElectricityEngineering
The invention relates to a sensor structure used for a Doppler flow instrument and an assembly method thereof, pertaining to the technical field of flow measurement of industrial fluids. The technical scheme is characterized in that an upper twisted pair (7) at the end part of a signal cable (5) is connected with a Doppler resonance wafer (3); the signal cable (5) and a shielding net (6) are locked into a main housing (1) through a locker (4) such that the shielding net (6) of the signal cable and the main housing (1) form an equipotential metal cavity structure; the cavity structure of the main housing (1) is filled with soft silica gel by pouring through a gluing screw opening hole (9) and filled by 2 / 3; and a Doppler resonance wafer of a transmitting transducer is a piezoelectric ceramic wafer P-8 series and a Doppler resonance wafer of a receiving transducer is a piezoelectric ceramic wafer P-5 series. The sensor structure used for the Doppler flow instrument and the assembly method thereof have following beneficial effects: production cost is low; promotion is easily carried out; a sensor can be used in a complex environment; and by improving sensitivity, stable operation of the sensor is ensured.
Owner:杜泓霖
Wiring groove for rail vehicle
ActiveCN105172712AImprove efficiency and accuracyAnti-electromagnetic interferenceElectrical apparatusElectric/fluid circuitWeak currentElectromagnetic interference
The invention discloses a wiring groove for a rail vehicle. The wiring groove comprises a bottom plate, and a plurality of ventilation holes are formed in the bottom plate. The wiring groove is characterized in that a plurality of isolation plates are connected to the bottom plate in an inserted mode, plate grooves are formed in the two opposite vertical planes of every two isolation plates, an n-shaped cover plate is arranged between every two isolation plates and is inserted into the corresponding plate groove to form a wiring groove space, and an isolation cover is arranged in each wiring groove space. The isolation plates and the cover plates can be quickly inserted through a groove body structure, and the isolation covers can be quickly closed through a shaft structure; the wiring groove is provided with the wiring groove spaces so that strong-current, weak-current and signal wiring can be carried out separately, wiring efficiency and accuracy are improved, and meanwhile, electromagnetic interference can be well prevented through the isolation plates and the isolation covers.
Owner:南京苏铁经济技术发展有限公司
Preparation method of perchloroethylene anticorrosion static conductive coating
InactiveCN102492340AHigh impact strengthImprove adhesionAnti-corrosive paintsElectrically-conductive paintsCoated surfaceConductive coating
The invention discloses a preparation method of a perchloroethylene anticorrosion static conductive coating, which belongs to the chemical technical field. According to the invention, perchloroethylene is taken as a film former, modified phenolic resin is taken as reinforced resin, conductive graphite treated by a surface modifier is taken as a static conductive agent, the prepared anticorrosion static conductive coating possesses excellent anti-corrosive property, scalelike conductive graphite is added, the surface resistivity of the coating can be controlled at 10<6>-10<7>W, so that the thermal expansion coefficient and shrinkage of the coating are small, and the coating possesses excellent static conductive performance and anti-electromagnetic interference performance. The coating can be used for anticorrosion, flame retardation and static conduction coating on the surface of a steel structure and other metal products under scurviness environment, such as coating with anticorrosionand static conduction on the bridge, ship, train and railway facility, automobile, sea engineering facility, petroleum chemical pipeline equipment, medical health apparatus and the like.
Owner:LANZHOU PETROCHEM COLLEGE OF VOCATIONAL TECH
Capacitive orientation detection circuit
InactiveCN106646618AImprove distance accuracyGood anti-electromagnetic interferenceAmmunition fuzesElectric/magnetic detectionCapacitanceElectrical conductor
The invention relates to a capacitive orientation detection circuit. The capacitive orientation detection circuit is characterized by comprising an emitter electrode, three receiver electrodes, a power supply module, an oscillation circuit and a detection circuit; through the capacitive orientation detection circuit, target detection and orientation identification can be realized, the capacitive orientation detection circuit is mainly applicable to conducting objects such as armored objects and airplanes; the capacitive orientation detection circuit is technically characterized in that multiple detection electrode sets are disposed in the space, distances from a target to electrodes are different, and target orientation can be derived according to difference of demodulation voltage change amount; the receiver electrodes employ a multi-receiver-electrode array mode, and independent three-path detectors are utilized for detection. The capacitive orientation detection circuit is advantaged in that a capactive proximity sensing fuse working in a quasi-electrostatic field has properties of high spacing precision, good electromagnetic interference resistance and stealth resistance, and the capacitive orientation detection circuit can be in matching with any bomb with burst height requirements about 2m, and is especially suitable for bombs in strong electromagnetic interference field operation environments.
Owner:SHANGHAI DIANJI UNIV
Cable connector assembly
InactiveCN102332660AIncrease data transfer rateGood anti-electromagnetic interferenceRelieving strain on wire connectionTwo-part coupling devicesEngineeringPrinted circuit board
Owner:FOXCONN (KUNSHAN) COMPUTER CONNECTOR CO LTD +1
Force measuring device for anti-seismic vibration testing of building
InactiveCN105606284AAffect the vibration conditionReduce vibrationApparatus for force/torque/work measurementVibration testingElectrical batteryData acquisition
The invention relates to a force measuring device for anti-seismic vibration testing of a building. The force measuring device comprises an acceleration sensor, a battery arranged around the acceleration sensor, and a circuit module group arranged inside the battery. At least one memory card is connected in the circuit module group detachably. The acceleration sensor is powered by the battery and is used for transmitting a measuring signal and storing the signal into the memory card of the circuit module group. According to the provided force measuring device, because the acceleration sensor, the power supply, and the memory card for storing testing data are combined into one structural component operating independently, cables like a power line and a data line that extend outwardly can be saved, the damages on structure sealing by the cable exits can be avoided, and additional weights are reduced; configuration of expensive multi-path data collection equipment and configuration of an external power adapter are not required; debugging work like impedance matching on the scene is not needed; after data collection, the memory card is removed and then a common card reader is needed, so that lots of money and time can be saved.
Owner:BEIJING NORMAL UNIVERSITY
Airplane surface temperature detection system
InactiveCN105841841AReduce weightSmall footprintThermometers using physical/chemical changesJet aeroplaneElectromagnetic interference
The invention discloses an airplane surface temperature detection system and belongs to the airplane temperature detection technology field. The airplane surface temperature detection system comprises a sheath, a single-mode fiber, a multi-mode fiber, a hollow tube, a laser device and a photoelectric coupler, wherein one end of the single-mode fiber is connected with the laser device, one end of the multi-mode fiber is connected with the photoelectric coupler, the hollow tube is embedded in the sheath, the other end of the single-mode fiber and the other end of the multi-mode fiber are arranged in the hollow tube, end faces of the single-mode fiber and of the multi-mode fiber and the hollow tube form an enclosed chamber, the end faces of the single-mode fiber and of the multi-mode fiber are in parallel with each other in the enclosed chamber, the end faces are bonded with high reflection films, and light signals emitted by the laser device pass through the single-mode fiber, then pass through the enclosed chamber and pass through the multi-mode fiber to enter the photoelectric coupler. The airplane surface temperature detection system is advantaged in that weight of an aircraft can be reduced, the space is saved, design is simplified, and stealth and anti-electromagnetic interference of an airplane are facilitated.
Owner:XIAN AIRCRAFT DESIGN INST OF AVIATION IND OF CHINA
Non-microphone voice transmission device
InactiveCN100346669CGood anti-electromagnetic interferenceImprove radiation resistanceTransducer circuitsFiberSound sources
Owner:FUDAN UNIV
Cable connector component
ActiveCN102403605AIncrease data transfer rateGood anti-electromagnetic interferenceCouplings bases/casesCoupling protective earth/shielding arrangementsFastenerElectrical and Electronics engineering
A cable connector component (100) comprises a body (1) with a holding space (11), two printed circuit boards (2), a fastener (6) and a puller (7), wherein the two printed circuit boards (2) which are parallelly arranged at an interval are assembled into the holding space of the body and positioned with the body, the fastener (6) is assembled on the upper surface of the body, and the puller (7) is connected with the fastener and capable of driving the fastener. The upper surface of the body is provided with a recess (14), the fastener is disposed in the recess, the front end of the puller penetrates through the fastener from top to bottom and is connected with the same, supporting columns (144) in pair are formed on two sides of the recess, the top surfaces of the supporting columns contact with the bottom surface of one part of the puller above the fastener, and the puller can lead the front end of the fastener to move upwards when moving backwards.
Owner:FOXCONN (KUNSHAN) COMPUTER CONNECTOR CO LTD +1
Electrical connector assembly
ActiveCN102646898ANo falling offGood anti-electromagnetic interferenceNetwork connectorsFixed connectionsButt jointEngineering
The invention provides an electrical connector assembly (100), which comprises a body (1) providing with an accommodating space (11), two printed circuit boards (2) and a locking device; the printed circuit boards (2) are arranged in parallel, are accommodated in the accommodating space (11) of the body (1) and are positioned with the body (1) mutually; the locking device is assembled on the body; the body comprises a body part (12) located at the rear end of the body and a butt joint part (13) which extends forwards from the front end surface of the body part; the electrical connector assembly further comprises a metal washer (9) which is assembled at the rear end of the periphery of the butt joint part of the body; a sunken area (132) is further arranged on the butt joint part of the body; the metal washer is accommodated and positioned in the sunken area; a groove (133) is arranged in the sunken area; an indent part (932) accommodated in the groove is formed on the metal washer. In such way, the metal washer can be firmly positioned on the body.
Owner:FOXCONN (KUNSHAN) COMPUTER CONNECTOR CO LTD +1
Dispenser
InactiveCN101321246ALight weightReduce weightTelevision system detailsTelevision system scanning detailsDie castingElectromagnetic interference
The invention discloses an allocator which comprises a shell and a cover plate. The shell is an integral structure die-casted by a magnesium alloy material. The shell is provided with a mounting hole and at least three hollow thread rods. As the wall of the shell made by magnesium alloy is a little thinner and the specific weight of the magnesium alloy is relatively low, the weight of the allocator is reduced. Besides, the products have favorable electromagnetic shielding property and strong electromagnetic interference resistance using the shell of magnesium alloy.
Owner:江亚萍
Microwave optical signal wireless laser transmission device and method
PendingCN111464237ASolve the problem of inability to carry out long-distance wireless laser transmission of microwave optical signalsHigh communication data rateFree-space transmissionMicrowaveOptical antenna
The invention provides a microwave optical signal wireless laser transmission device and method, and belongs to the technical field of microwave optical signal transmission. The problem that in the prior art, microwave optical signal long-distance wireless laser transmission cannot be conducted between two platforms moving relatively is solved. The device comprises a first tracking unit, a secondtracking unit, an alignment unit, a signal transmitting optical fiber and a signal receiving optical fiber, wherein the first tracking unit is connected with the second tracking unit, the second tracking unit is connected with the alignment unit, the signal transmitting optical fiber is connected with the second tracking unit, the alignment unit is connected with the signal receiving optical fiber, and an optical antenna is arranged in the first tracking unit. The device and method are mainly used for long-distance wireless laser transmission of microwave optical signals.
Owner:哈尔滨天陆智成光电科技有限责任公司
Electronic package and manufacturing method thereof
PendingCN113078139AAvoid the problem of being interfered by external electromagnetic wavesImprove shielding effectSemiconductor/solid-state device detailsSolid-state devicesElectronic componentElectromagnetic wave interference
An electronic package and a manufacturing method thereof are provided, where a plurality of shielding wires are arranged on a carrier and spanning across an electronic component to cover the electronic component, so that the shielding wires serve as a shielding structure to protect the electronic component from the interference of external electromagnetic waves.
Owner:SILICONWARE PRECISION IND CO LTD
Radiation-proof rare earth modified waterborne chlorosulfonated polyethylene anticorrosive paint and preparation method thereof
InactiveCN106634248AStrong coordination complex functionIncrease the degree of cross-linkingAnti-corrosive paintsElectrically-conductive paintsEpoxyRare earth
The invention discloses radiation-proof rare earth modified waterborne chlorosulfonated polyethylene anticorrosive paint and a preparation method thereof. The radiation-proof rare earth modified waterborne chlorosulfonated polyethylene anticorrosive paint is characterized by being prepared from, by weight, 1-2 parts of nanosilicon dioxide, 50-60 parts of chlorosulfonated polyethylene emulsion, 1-2 parts of lead powder, 3-6 parts of sodium dodecyl sulfate, 3-5 parts of lanthanum oxide, 20-30 parts of salpeter solution, 2-4 parts of graphene oxide, 3-5 parts of talcum powder, 6-9 parts of ammonium bicarbonate solution, 3-5 parts of titanium dioxide, 5-10 parts of conductive graphite, 3-6 parts of waterborne epoxy resin, 3-6 parts of polyacrylic acid and 5-10 parts of silane coupling agent KH560. The talcum powder and a rare earth compound are combined, and the corrosion resistance, aging resistance, abrasion resistance and glossiness of the paint are improved; the static conductive graphite is added into the paint, so that the paint has excellent static conductive and electromagnetic interference resisting performance, and the obtained paint is suitable for protective coating of various kinds of equipment; by adding the lead powder and the like, the radiation-proof function of the paint is achieved.
Owner:ANQING NORMAL UNIV
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