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Soft-magnetic composite material and process for making magnetic conduction component by using same
InactiveCN1700368AWiden your optionsLow costInorganic material magnetismInductances/transformers/magnets manufactureLubricationCalcium carbonate
This invention relates to soft magnetic compound materials, which are characterized by the following: the said materials comprise iron material, isolation agent and lubrication agent with their weight percentage as 92-99 úÑ, 0.5-5 úÑ , 0.5-3 úÑ; the said iron material is powder material, which comprise deoxidized powder, atomized iron powder, hydroxide powder and iron alloy with iron of 80-99.8úÑ; Particle distribution of 20-500; the said isolation agent adopts nanometer calcium carbonate powder or ceramics powder or magnetic oxidation power; the said lubrication is micro powder. The process comprises the following steps: mixing, shaping, solidifying and stainless processing.
Owner:罗计添 +2
White light organic electroluminescent device
InactiveCN1921171AImprove luminous efficiencyWiden your optionsSolid-state devicesSemiconductor/solid-state device manufacturingOrganic electroluminescenceWhite light
The invention relates to a white light organic electroluminescent device. Wherein, it comprises transparent liner 1, anode layer 2, organic function layer 3, and cathode layer 4; the organic function layer 3 at least comprises lighting layer 34 formed by carrier material, blue fluorescent material and phosphorescent material; driven by external power 90, the device can light white color; the lighting layer 34 has single layer, dual-layer or multilayer structure; the organic function layer 3 also can comprises one or several of cavity pour layer 31, cavity transmission layer 32, electron baffle layer 33, cavity baffle layer 35, electro transmission layer 36, and electro pour layer 37. The invention combines the blue fluorescent material and phosphorescent material to improve the lighting efficiency, with adjustable color coordinate and improved stability. The invention can be used in the back light of color liquid crystal display.
Owner:UNIV OF ELECTRONIC SCI & TECH OF CHINA
Optical current sensor and current measurement method based on comparative measurement structure
InactiveCN103163360AAvoid interactionAvoid errorsCurrent/voltage measurementCurrent sensorOptoelectronics
Owner:HARBIN INST OF TECH
MQTT connection method and system of low-end limited equipment, terminal and server
InactiveCN108173860AWiden your optionsEnsure safetyTransmissionProtocol for Carrying Authentication for Network AccessServer-side
The invention discloses an MQTT connection method and an MQTT connection system of low-end limited equipment. The method comprises the steps as follows: a terminal and a server share a key, the serverrecords the key of the terminal and an encryption and decryption algorithm; the terminal is connected with the server, and sends an MQTT CONNECT message to the server, and an MQTT CONNECT message parameter is signed by the key; the terminal publishes the message to a subscribed subject, and a message load uses the encryption and decryption algorithm for encryption; and after receiving the messageof the subscribed subject sent by the server, the terminal decrypts according to the encryption and decryption algorithm, and then performs service processing according to the message load of plaintext. The encryption and decryption algorithm, such as DES, 3DES and AES, or a private encryption algorithm matched with the computing capacity of the terminal is used, so that the access of the limitedequipment to the MQTT also has certain security through transforming an MQTT server under the condition of being unable to use TLS, and thus the selection range is expanded when the equipment is designed and manufactured.
Owner:SHENZHEN FANHAI SANJIANG TECH DEV
Bipolar battery composite current collector structure and preparation method
InactiveCN109786755AIR drop minimizationWiden your optionsElectrode manufacturing processesElectrode carriers/collectorsElectrical batteryElectrochemical energy storage
The invention discloses a bipolar battery composite current collector structure and a preparation method and belongs to the field of electrochemical energy storage technology. The bipolar battery composite current collector structure is characterized in that a protective layer is spread on one side or both sides of a base. The preparation method of the bipolar battery composite current collector structure is characterized in that the protective layer spread on one side or both sides of the base is prepared through physical vapor deposition or chemical vapor deposition or electrochemical deposition or surface fusion or spraying or 3D printing or homogenization. By the adoption of the technical scheme, the bipolar battery composite current collector structure and the preparation method are used for increasing cell energy density and improving cell output characteristics.
Owner:CHINA ELECTRONIC TECH GRP CORP NO 18 RES INST
Four-wave mixing scanning type ultrashort laser pulse time domain contrast measuring instrument
ActiveCN107063480AWiden your optionsWide spectral rangeOptical pulse measurementSignal beamNonlinear crystals
The invention relates to a four-wave mixing scanning type ultrashort laser pulse time domain contrast measuring instrument, which comprises a beam splitter, a short-pass filter, a first planar reflecting mirror, a second planar reflecting mirror, a third planar reflecting mirror, a fourth planar reflecting mirror, an electric translation platform, a fifth plane reflecting mirror, a first cylindrical reflecting mirror, a second cylindrical reflecting mirror, a third-order nonlinear crystal, an attenuator, a filter, a detector and a computer, and is characterized in that laser light is decomposed into two beams of laser pulses with different frequencies through the beam splitter, the two beams of laser pulses with different frequencies shot to a third-order nonlinear material at a certain angle, two beams of four-wave mixing (Raman) signal light beams which are different from incident laser in frequency and different in propagation direction, and the intensity of generated signal light directly reflects the time domain contrast of the incident laser. According to the invention, four-wave mixing signal light which does not coincide with an incident beam in frequency is directly acquired, the device is simpler and high in stability, and the used components and nonlinear dielectric material are economic and cheap.
Owner:SHANGHAI INST OF OPTICS & FINE MECHANICS CHINESE ACAD OF SCI
SIW (substrate integrated waveguide) resonator and processing method thereof
The invention discloses an SIW (substrate integrated waveguide) resonator. An intermediate air layer is arranged in the SIW resonator. Factors adverse to Q values are reduced by the aid of the intermediate air layer. No-load quality factor Q value is increased. The invention further provides a processing method of the SIW resonator. The processing method includes steps of increasing thickness of a single SIW resonator; and setting the intermediate air layer in the SIW resonator after the thickness is increased. The intermediate air layer is arranged in the SIW resonator, and accordingly, Q value of the SIW resonator is increased by changing the structure of the SIW resonator.
Owner:XIAN INSTITUE OF SPACE RADIO TECH
Method for acoustically monitoring blockage of gas extraction pipeline
ActiveCN105927862AWiden your optionsHigh practicality on sitePipeline systemsSpecial data processing applicationsSlagCoal
The method discloses a method for acoustically monitoring blockage of a gas extraction pipeline. An acoustic wave sensor is arranged in the bending segment of the gas extraction pipeline to receive acoustic waves of friction between accumulated water and coal slag in the pipeline and the pipeline wall, acoustic wave signal strength is analyzed and processed through a monitoring host, then, the acoustic wave signal strength is compared to precisely find out the blockage area of the extraction pipeline, and the blockage level of the accumulated water and the coal slag in the pipeline is obtained, so that monitoring of the blockage condition of the points nearby the bending segment is achieved; the method for acoustically monitoring blockage of the gas extraction pipeline in a portable and passive manner can detect the blockage degree of the extraction pipeline in real time, the pipeline dredging work can be rapidly guided, and therefore the gas extraction efficiency is improved; and the method is not affected by the pipeline material, the blockage point can be precisely positioned, when the acoustic wave sensor is mounted, the extraction pipeline does not need to be dismounted, normal gas extraction work is not affected, and the extremely high field practical value is achieved.
Owner:CHINA UNIV OF MINING & TECH
Method and device for purifying electrolyte of flow battery
ActiveCN110858655AWiden your optionsRecovery of metallic mercury is simple and easy to operateElectrolyte stream managementRegenerative fuel cellsElectrical batteryChemical engineering
Owner:ENERFLOW TECH CO LTD
Pixel definition layer based on ink-jet printing and preparation method thereof
InactiveCN109461846AWiden your optionsAvoid influenceSolid-state devicesSemiconductor/solid-state device manufacturingPhotolithographyInkjet printing
The invention discloses a pixel definition layer based on ink-jet printing and a preparation method thereof. The method comprises the following three steps: preparing a substrate for depositing a TFTdrive circuit; depositing a first pixel definition layer located at the bottom; and depositing a second pixel definition layer located at the top, wherein the first pixel definition layer should be made of a material with excellent hydrophilic performance wettability, the second pixel definition layer should be made of the material with poor hydrophilic performance wettability, and the second pixel definition layer is a regular trapezoid structure; moreover, at least one of the first pixel definition layer and the second pixel definition layer is a lighttight material; at least one of the first pixel definition layer and the second pixel definition layer is an insulating material; the first pixel definition layer and the second definition layer both have ink solvent resistance; and the pixel definition layer can be realized through an etching or printing technology. With the pixel definition layer and the preparation method thereof, a selection range of a bank material is expanded greatly, influence on spreadability caused by boundary defects or structure is avoided effectively, stability is improved, meanwhile, a position of a pinning point can be regulated effectively, and fine control of evaporation, flowing and drying of ink is realized.
Owner:FUZHOU UNIVERSITY
Device and method adopting high-rigidity metal for friction surfacing of low-rigidity metal
ActiveCN105215540AWiden your optionsGood continuous controllabilityNon-electric welding apparatusHardnessControllability
The invention discloses a device and method adopting high-rigidity metal for friction surfacing of low-rigidity metal. The device comprises a power device, a resistor and a cooling device coated with a copper layer. The power device enables the high-rigidity metal to rotate and provide pressure. One end of the resistor is connected with the high-rigidity metal, the other end of the resistor is fixedly connected with the power device, and the resistor is connected with the high-rigidity metal through a brush to form an access. The low-rigidity metal is placed on the copper layer. According to the invention, the high-rigidity metal is preheated, the low-rigidity metal is cooled, and therefore control over the metal rigidity and the softening state in the friction surfacing process of the high-rigidity metal and the low-rigidity metal can be achieved. The device is good in continuity and controllability in the welding process, high in work efficiency and long in service life.
Owner:JIANGSU SHUOSHI WELDING SCI & TECH
Method of synthesizing 2-vinyl indole derivative
The invention discloses a method of synthesizing a 2-vinyl indole derivative. The synthesis method comprises the following steps: mixing an indole derivative, vinyl trifluoro boric acid ester and silver acetate under the action of a rhodium catalyst, heating the mixture in a first solvent and air to 30-50 DEG C, and carrying out vinylation reaction to obtain the 2-vinyl indole derivative. According to the method, by selecting different substituent groups, different 2-vinyl indole derivatives can be obtained. The method does not need complex raw materials, expands a selection range of the raw materials and saves the cost. In addition, alkenyl indole without a substituent group at a terminal can be obtained by using the method provided by the invention, the reactivity is strong, and the 2-vinyl indole derivative with a terminal alkene structure can be further modified according to the needs. Meanwhile, the method can perform synthesis through one-step reaction, is simple in reaction steps, mild in reaction conditions and low in cost, can be performed in air, is liable to operate and has very strong practicability.
Owner:JIANGHAN UNIVERSITY
Cell inoculation method
InactiveCN104774765AImprove adhesion strengthWiden your optionsBacteriaUnicellular algaePre treatmentBiology
The invention provides a cell inoculation method and belongs to the field of microalgae cultivation. In the process of adhesive culture of microalgae, the method can be used for solving the problem that a breeding carrier is just limited to a porous and multi-fluff material and expands the material selection range of the breeding carrier, and moreover, certain carrier materials which are strong in durability and low in cost can be further suitable for microalgae cultivation. The method comprises the following steps: preparing a cell solution with a to-be-inoculated concentration of 0.5-300g / L; pre-placing a carrier; adhering the cell solution with the to-be-inoculated concentration of 0.5-300g / L to the carrier, wherein prepation of the cell solution with the to-be-inoculated concentration of 0.5-300g / L comprises the step of culturing cells to a stage of self-secreting viscous matters and / or before adhering the cell solution with the to-be-inoculated concentration of 0.5-300g / L to the carrier, the method comprises the step of pre-treatment of increasing adhesiveness of the carrier on the carrier. The method provided by the invention can be used for cell inoculation.
Owner:ENN SCI & TECH DEV
Brightness-adjustable desk lamp
InactiveCN103423654AWiden your optionsSimple and efficient operationElectric circuit arrangementsFree standingAmbilightHuman eye
The invention discloses a brightness-adjustable desk lamp comprising a desk lamp base, a desk lamp body, a bulb, a light sensing device, an adjusting device and a power supply device. The desk lamp base is positioned below the desk lamp body and supports the same, the bulb is mounted on the desk lamp body, the photosensitive sensor and the adjusting device are positioned on the desk lamp base and both connected with the bulb, the power supply device is connected with the bulb through the photosensitive sensor and the adjusting device, the photosensitive sensor is used for sensing ambient light brightness and automatically adjusting the brightness of the bulb according to the ambient light brightness, and the adjusting device is used for adjusting the brightness of the bulb manually. The brightness-adjustable desk lamp has the advantages that two control modes of automatic adjustment and manual adjustment are provided, so that the brightness of the bulb can be adjusted automatically according to the ambient light brightness, and a user is allowed to select brightness according to own preference through the manual adjusting device; the brightness-adjustable desk lamp is large in selection range and easy to operate, and plays a certain role in protecting human eyes.
Owner:SHANGHAI GEZHI HIGH SCHOOL
Method for manufacturing soldering circuit board, soldering circuit board, and method for mounting electronic component
InactiveCN105122957AWiden your optionsBroaden your optionsPrinted circuit assemblingSemiconductor/solid-state device detailsResistSoldering
The present invention is a method for manufacturing a soldering circuit board and is characterized by carrying out in this order: a resist forming step for partially covering a conductive circuit electrode surface on a printed wiring board with a resist; an adhering part forming step that forms an adhering part by imparting adhesiveness to parts that are not covered by the resist on the conductive circuit electrode surface; a solder attachment step for attaching solder powder to the adhering part; a resist removal step for removing the resist; and a first heating step that heats the printed wiring board and melts the solder powder.
Owner:SHOWA DENKO KK
Method for efficiently preparing high-quality molybdenum disulfide nano-wires
InactiveCN109437307ASimple methodWiden your optionsNanotechnologyMolybdenum sulfidesAmmonium molybdateMolybdenum disulfide
The invention provides a method for efficiently preparing high-quality molybdenum disulfide nano-wires. The method comprises the following steps: firstly, preparing a proper amount of a surfactant solution; then adding a proper amount of a structure-directing agent into the solution and stirring and mixing to obtain a solution A; secondly, weighing a proper amount of ammonium molybdate and thioacetamide as a molybdenum source and a sulfur source respectively, and uniformly stirring in a de-ionized water solution to obtain a solution B; thirdly, slowly dropwise adding the solution A into the solution B; then adding a proper amount of a reducing agent hydrazine hydrate; finally, after the hydrazine hydrate is completely added, adjusting the temperature of an oil bath pot to be 100 to 120 DEGC, wherein the reaction time is 10 to 24h and the stirring speed of a shuttle-shaped magneton is 20 to 60rpm; after reaction is finished, centrifuging a reaction product for a plurality of times andwashing with de-ionized water.
Owner:王子韩
Functional fiber-grade 3D printing method based on reactive extrusion
InactiveCN105922577AHigh forming precisionWiden your optionsAdditive manufacturing apparatusPlasticizerHeat treated
The invention relates to a functional fiber-grade 3D printing method based on reactive extrusion. A lactam monomer and / or lactone monomer, an assistant and a plasticizer are fused and have a polymerization reaction under the catalyst effect, a functional agent is added before polymerization or in the polymerization process, and target polymer is obtained; the target polymer is subject to fused deposition 3D printing, and then subject to heat treatment, and a final product is obtained; and according to heat treatment, heat preservation is carried out for 3 min to 60 min at the temperature ranging from 100 DEG C to 180 DEG C. A high-precision high-adapting 3D printer is adopted, the molding precision is high, the efficiency is high, the mechanical property of the product is good, and functional components are good in dispersibility; a technology for directly making the product from the polymeric monomer is adopted, the production flexibility is improved, and meanwhile, the condition that due to crystallization and the large temperature difference of semi-crystalline polymer of nylon, polyester and the like, edge warping is caused, and even printing cannot be carried out is avoided; and the kind of the fused deposition 3D printing material is widened, the quality of the product is improved, and the method has the wide application to the fields of automobile materials, engineering materials, structural parts and the like.
Owner:DONGHUA UNIV
Container type generating unit
ActiveCN110685799AWiden your optionsReduce the difficulty of layoutMachines/enginesEngine componentsGenerating unitInternal combustion engine
The invention discloses a container type generating unit. The container type generating unit comprises a container and multiple generating units mounted in the container, wherein the generating unitsare obliquely mounted in the container in parallel. According to the arrangement form, the width size of the container can be reduced, the length size of the container is taken into consideration, sothat on the premise that the container meets the limitation of road for the transport vehicle width, the power of single generating units arranged in the container is greatly increased, the selectionrange for single generating units for an internal combustion engine is larger, the arrangement difficulty is reduced, multiple high-power single generating units can be arranged in the container, thespace utilization rate of the container is increased, and manufacturing and transporting costs and operating, maintaining and serving costs are reduced.
Owner:GUANGZHOU WANON ELECTRIC & MACHINE
Panorama holder
InactiveCN104832761AWiden your optionsLower the altitudeStands/trestlesEngineeringMechanical engineering
The invention provides a panorama holder comprising a base body, an index dial which is arranged on the base body and a cover body which covers the base body. The panorama holder also comprises a positioning mechanism which adjusts the relative rotating position of the cover body and the base body. The positioning mechanism comprises multiple circles of positioning holes which are circumferentially and evenly distributed on the dial surface of the index dial and positioning knobs which penetrate through the cover body to be contacted with the index dial. The external end parts of the bottom end surfaces of the positioning knobs are provided with positioning marbles which can respectively move into different circles of positioning holes along with rotation of the positioning knobs. The external end parts of the positioning marbles slidably move on the dial surface of the index dial or are clamped in the positioning holes. The panorama holder is simple in structure, convenient to operate and multiple in optional rotating angles. Besides, product height is reduced, carrying is more convenient, scale values do not need to be observed in photographing and thus photographing efficiency is enhanced.
Owner:广东徕图影像科技有限公司
Manufacturing method of beta-cyclodextrin matrix solid-phase micro-extraction head
InactiveCN102008945AImprove adsorption capacityWiden your optionsComponent separationOther chemical processesPesticideDichloromethane
The invention relates to a manufacturing method of a beta-cyclodextrin matrix solid-phase micro-extraction head, belonging to the trace analysis field of volatile and semi-volatile organic matter in foods, environment and biological samples. The manufacturing method comprises the following steps of: (1) selecting and pretreating quartz fiber; (2) manufacturing the solid-phase micro-extraction head: preparing a sol from a coating material containing polydimethylsiloxane and beta-cyclodextrin, placing the quartz fiber treated in the step (1) in the sol, taking out, gelling at room temperature, aging by heating and refluxing the aged gel by using dichloromethane to manufacture the solid-phase micro-extraction head. In the invention, the beta-cyclodextrin and the polydimethylsiloxane are combined and used as the solid-phase micro-extraction coating material to manufacture the extraction head, and the extraction head enlarges the selection range of a coating on the polarity of an absorbed substance and is especially applicable to the detection of organic matter such as phenols and the like in perfume compositions and environment water samples and the detection of residual pesticides in fruits and vegetables.
Owner:TIANJIN CHUNFA BIO TECH GRP
Artificial on-ring mechanical valve for replacing bicuspid valve membrane
InactiveCN108451669AGood form and functionWiden your optionsAnnuloplasty ringsBicuspid valveVentriculus
Provided is an artificial on-ring mechanical valve for replacing a bicuspid valve membrane. The artificial on-ring mechanical valve is used for being implanted into the heart to replace the cardiac bicuspid valve membrane which is positioned on the junction of the left atrium and the left ventriculus and has a lesion. The artificial on-ring mechanical valve includes a valve stent, a pair of openable valve leaflets and a suturing ring, wherein the valve stent includes a tubular part matched with a bicuspid valve ring in the left ventriculus, the valve leaflets are installed on the valve stent,contained in the tubular part and used for controlling one-way circulation of blood, and the suturing ring is fixed to the tubular part and used for being sutured with the bicuspid valve ring. The tubular part is also provided with an inflow end opening part and an outflow end opening part for blood to flow from the left atrium into the left ventriculus, and the suturing ring is arranged on the outflow end opening part.
Owner:唐杨烽
Non-contact type embedded body of electronic credential and method for producing the same
InactiveCN101474923AStrong firmnessWiden your optionsOther printing matterRecord carriers used with machinesWoven fabricAdhesive
The invention provides a non-contact embedded body of an electronic certificate and a method for manufacturing the same. The embedded body comprises an upper protective layer, an upper connecting layer, a chip bearing bed, a lower connecting layer and a lower protective layer which are molten and compounded from top to bottom in sequence. The materials of the upper protective layer and the lower protective layer are a flexible material suitable for combining the certificate binding process and the prior paperhanging adhesive. The materials of the upper protective layer and the lower protective layer are fiber materials with a textile structure, or non-woven fabric, or paper or cotton fabric. The materials of the connecting layers are macromolecular and thermoplastic elastic films. The invention also provides the method for manufacturing the non-contact embedded body of the electronic certificate. The method comprise: melting and compounding the upper protective layer, the upper connecting layer, the chip bearing bed, the lower connecting layer and the lower protective layer from top to bottom to obtain the product. The embedded body has the advantages of strong fastness, warp resistance and flexure resistance. The material choosing range is widened through a reasonable layer structure, and the manufacturing method is simple and greatly reduces the manufacture cost.
Owner:SHANGHAI MITE SPECIALITY & PRECISION PRINTING
Wind-energy water production equipment
InactiveCN108104201AWiden your optionsLow costWater/sewage treatment by magnetic/electric fieldsDrinking water installationSoil horizonWater storage tank
The invention discloses wind-energy water production equipment. The wind-energy water production equipment comprises a base of which the top is provided with a support column, the support column is provided with a vertical-axis draught fan, the bottom of the base is connected to a connection pipe of which the tail end is connected to a water collection device, the water collection device is arranged in a soil layer under the earth, and the base is arranged on the ground; the water collection device comprises a rotating cavity of which the bottom is connected to a water storage tank, and the bottom of the water storage tank is connected to the base through a water discharge pipe. Through the wind-energy water production equipment, the problems are solved that it is difficult to obtain waterin arid areas, water cannot be produced in desert areas and the water obtaining cost is high for people living in the arid areas.
Owner:CHENGDU WENDA MAOYUAN TECH
Memristor switch device based on a-TSC:O ceramic film and preparation method thereof
ActiveCN108950507AWiden your optionsGood resistive propertiesVacuum evaporation coatingSputtering coatingElectrically conductiveTransmittance
The invention discloses a memristor switch device based on an a-TSC:O ceramic film and a preparation method thereof, and belongs to the technical field of photoelectric devices. An a-TSC:O film / a-TiOxfilm medium layer structure is innovatively proposed on the basis of a traditional memristor switch device structure, and the selection range of a memristor switch device medium layer material is widened. The resistance change properties of the a-TSC:O film can be adjusted in a wide range, the a-TiOx film is transparent and can provide oxygen vacancy electromigration channels, and therefore the a-TSC:O film has the good resistance change properties and can serve as a medium layer of a memristor switch device. Meanwhile, the a-TSC ceramic film has the very good electrical conductivity and near-infrared transmittance, therefore, the a-TSC ceramic film can serve as a top electrode material, and the a-TSC ceramic film and a top electrode formed by a transparent conductive film jointly form the near-infrared full-transparent memristor switch device. In addition, the invention provides a preparation technology of the memristor switch device. The preparation technology is simple, low in costand high in reliability, and large-scale production can be achieved.
Owner:UNIV OF ELECTRONIC SCI & TECH OF CHINA
System and method for producing water from air
InactiveCN108005167AWiden your optionsLower water abstraction costsDrinking water installationLithium bromideHeat sink
The invention discloses a system and method for producing water from air. The system comprises a solar energy heat absorption plate, the output end of the solar energy heat absorption plate is connected with an evaporator, and the evaporator is connected with a cooling fin through a pipeline; the cooling fin is connected with an air washing chamber through a pipeline, and the air washing chamber is connected with a circulating water pump through a pipeline; the circulating water pump is connected with the solar energy heat absorption plate through a pipeline. By arranging the system, water canbe obtained from the air, and the selection range of water sources is enlarged; the water taking cost of people in arid regions is reduced, and the living quality is improved; a lithium bromide solution is adopted to absorb moisture, the efficiency is high, and the cost is low; solar energy is used for heating in the production process, the energy consumption is low, energy conservation and environmental protection are achieved, and the produced water is high in quality and can be directly used as domestic water.
Owner:CHENGDU WENDA MAOYUAN TECH
Cold atom interferometer single laser light source system
ActiveCN112421371AReduce bandwidth requirements and performance requirementsWiden your optionsLaser detailsAcceleration measurement using interia forcesSidebandAtom interferometer
The invention provides a single-laser light source system of a cold atom interferometer. The single-laser light source system comprises a reference light path module and an optical frequency shift module; the reference light path module comprises a narrow bandwidth laser and a frequency stabilization module; the optical frequency shift module comprises a first electro-optical modulator and a firstnarrow bandwidth optical fiber filter, and the first electro-optical modulator is connected with the first narrow bandwidth optical fiber filter through an optical fiber; the first electro-optical modulator is connected with the laser through an optical fiber; the first electro-optical modulator receives initial light of a laser source, modulates the initial light through a modulation signal of apreset frequency, and generates a sideband of the preset frequency. The first narrow bandwidth optical fiber filter filters the optical signal output by the electro-optical modulator to obtain frequency shift light of a + 1-order sideband; the frequency shift light is used for modulating to obtain measurement and control light of cold atoms related to the instrument. The laser system is low in cost, low in power consumption, movable, small in size and capable of eliminating the Raman sideband effect.
Owner:NAT UNIV OF DEFENSE TECH
Method for improving sintering activity of cerium oxide doped electrolyte
The invention discloses a method for improving the sintering activity of cerium oxide doped electrolyte. Specifically, SrO is added into cerium oxide doped electrolyte powder. The relative content ofthe SrO in the cerium oxide doped electrolyte is in a range of 0.05 mol percent to 0.5 mol percent. The method disclosed by the invention can remarkably improve the sintering activity of the cerium oxide doped electrolyte, and meanwhile can further improve the electrical conductivity of the electrolyte.
Owner:YUNNAN UNIV
Optical energy water production device for arid region
InactiveCN108104199AWiden your optionsLow costBatteries circuit arrangementsElectric powerSoil horizonWater storage tank
The invention discloses an optical energy water production device for an arid region. The device comprises a base, a supporting column is arranged on the top of the base, a perpendicular shaft fan isarranged on the supporting column, a connecting pipe is connected to the bottom of the base, a water collector is connected to the tail end of the connecting pipe, the water collector is arranged in asoil layer under the earth's surface, and the base is arranged on the ground; the water collector comprises a rotation cavity, a water storage tank is connected to the bottom of the rotation cavity,and the bottom of the water storage tank is connected with the base through a drainage pipe. The problem that water obtaining in the arid region is difficult is solved, the problem that water cannot be produced in a desert area is solved, and the problem that the water obtaining cost of people living in the arid region is high is solved.
Owner:CHENGDU WENDA MAOYUAN TECH
Electrochromic device and color changing method thereof
PendingCN113495392AWiden your optionsMeet multi-color display and personalized customizationNon-linear opticsPhysicsElectrically conductive
The invention provides an electrochromic device and a color changing method thereof. The electrochromic device comprises a first substrate, a first transparent conductive layer, a first electrochromic layer, an electrolyte layer, a second electrochromic layer, a second transparent conductive layer and a second substrate which are stacked in sequence. The first electrochromic layer and the second electrochromic layer are both made of cathode electrochromic materials or anode electrochromic materials. The color changing method comprises the step of circularly applying a voltage which is opposite to and the same as a first voltage in direction to the pre-processed electrochromic device, so that the electrochromic device is switched among different colors. According to the electrochromic device, by adopting the structure that the two electrochromic layers are both the anode electrochromic materials or the cathode electrochromic materials, and in combination with a specific color changing method, the switching between different colors is achieved, and the selection range of the electrochromic materials is expanded.
Owner:SHENZHEN GUANGYI TECH CO LTD
Ceramic corundum grinding material containing complex-phase additive system
InactiveCN104045330AWiden your optionsWide variety of sourcesOther chemical processesWollastoniteAluminum nitrate
The invention discloses a ceramic corundum grinding material containing a complex-phase additive system, which comprises the following components in parts by weight: 20-30 parts of vein quartz, 10-19 parts of boric acid, 30-45 parts of feldspar, 15-30 parts of gypsum, 10-19 parts of sandstone, 35-46 parts of copper nitrate, 5-14 parts of wollastonite, 29-40 parts of barium nitrate, 5-11 parts of bagasse, 3-8 parts of Baonao powder, 15-39 parts of trumpet shell powder, 35-39 parts of aluminum nitrate, 30-50 parts of ethyl orthosilicate and 15-20 parts of barium hydroxide octahydrate. The corundum grinding material has the advantages of wider additive selection range, wide additive sources, higher single-granule compression strength and higher impact toughness, and the sintering temperature of the corundum grinding material can be effectively lowered, thereby lowering the production cost, reducing the energy consumption and further optimizing the interior microstructure.
Owner:QINGDAO GUOHANG XIANGYU TECH SERVICE
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