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34results about How to "Improve effective area utilization" patented technology
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Phosphorus and boron liquid source one-shot perfect diffusion process
ActiveCN104766790ASmall amount of feedbackImprove effective area utilizationSemiconductor/solid-state device manufacturingConcentration gradientProcessing cost
The invention discloses a phosphorus and boron liquid source one-shot perfect diffusion process. The process is mainly implemented through the following steps that one surface of each silicon wafer with two thinned sides is rotated to be coated with a liquid boron source, baked and then rotated again to be coated with a liquid phosphorus source, lamination is conducted after baking, the silicon wafers are stacked on a silicon boat pairwise to be subjected to one-shot perfect diffusion in the mode that each phosphorus source surface is opposite to the corresponding phosphorus source surface and each boron source surface is opposite to the corresponding boron source surface. Diffused junction depth is even, and reverse breakdown voltage of a product can be stable and good in uniformity; the diffusion concentration gradient is reduced, PN junction field intensity can be effectively improved, discharging-resistant capacity of the product is improved, and the reverse surge capacity of the product can be effectively improved; meanwhile, the source return quantity of the edge of the silicon wafer is small, the number of intra defects is small, and product reliability is high. Processing cost is low, the process is simple, and production is easy.
Owner:SUZHOU QILAN POWER ELECTRONICS
Interference detection device based on light-splitting synchronous phase shifting and detection method
InactiveCN102914259AImprove effective area utilizationHigh measurement accuracyUsing optical meansGratingPolarizer
The invention discloses an interference detection device based on light-splitting synchronous phase shifting and a detection method. The interference detection device belongs to the field of optical interference detection. The invention aims to solve problems of difficulty and complexity in operation and low measurement precision of the conventional optical phase shifting interference detection method. The invention has the scheme that a light beam emitted from a light source is carried out collimation light expansion by a polarizing film and a collimation light expansion system to form a linearly polarized light; the linearly polarized light is divided into an object light beam and a reference light beam after passing through a first polarization light splitting prism; the object light beam and the reference light beam gathered on a second polarization light splitting prism pass through a lambda / 4 wave plate, a rectangular window, a first Fourier lens, a one-dimensional period grating, a second Fourier lens, a depolarization light splitting prism and a four-quadrant polarizing film group in sequence; an interference pattern is generated on a plane of an image sensor; the interference pattern obtained by collection is processed by a computer; and phase distribution of an object to be detected is obtained.
Owner:HARBIN ENG UNIV
Membrane electrode and current collecting board element of electrochemical cell and electrochemical cell module
InactiveCN101533915AImprove effective area utilizationSimplify the assembly processCellsFuel cells groupingElectrical batteryEngineering
The invention discloses a membrane electrode and current collecting board element of an electrochemical cell, which comprises a layer of membrane, a lateral gas diffusion layer and a lateral porous current collecting board that are superposed in sequence; the lateral gas diffusion layer is arranged on the lateral porous current collecting board and the middle of the membrane; and the side surface of the periphery of the lateral gas diffusion layer is filled with sealing materials and solidified. The invention also discloses an electrochemical cell module comprising at least one electrochemical single cell; and the electrochemical single cell comprises an end plate with a gas flow passage at one side, an element and an end plate with a gas flow passage at the other side that are superposed in sequence. Compared with the prior art, the technical proposal simplifies the structure and the assembly technology, thus reducing the cost of production in batches, improving the utilization rate of the effective area of the membrane electrode simultaneously and being applicable to production of fuel cells, electrolytic cells, regenerative fuel cells and electrochemistry oxygen generators.
Owner:JIANGSU QINGNENG NEW ENERGY TECHNOLOGIES CO LTD
Orthogonal double-grating based detecting device for synchronous phase shift common-light path interference and detecting method therefor
InactiveCN102865810ASimple methodImprove effective area utilizationUsing optical meansPhase shiftedPolarizer
The invention provides an orthogonal double-grating based detecting device for synchronous phase shift common-light path interference and a detecting method for the orthogonal double-grating based detecting device, belonging to the field of the detection of optical interference. The invention aims at solving the problem that the existing optical phase shift interference detecting method is complex and hard to operate, and is high in cost and low in measurement precision caused by a high-quality lambda / 4 wave plate. The invention has the scheme that a light beam emitted out of a light source is incident into a light receiving surface of a collimating and beam expanding system through a polarizing film, an emergent light beam collimated and expanded by the collimating and beam expanding system is incident into a first lens through two lambda / 4 wave plates, an object to be tested and a rectangular window opening, an emergent light beam collected by the first lens is incident into a second lens through the double gratings formed by a one-dimensional cyclic range grating and a one-dimensional cyclic phase shift grating, a diffraction light beam transmitted by the second lens is incident into a four-quadrant polarizing film set, an emergent light beam of the four-quadrant polarizing film set is received by an imaging sensor, and an image signal output end of the imaging sensor is connected with an image input end of a computer, and obtains the phase distribution of the object to be tested.
Owner:HARBIN ENG UNIV
Bee keyboard
InactiveCN1504865AEasy to useImprove effective area utilizationInput/output processes for data processingEmbedded systemHoneycomb
The invention relates to a honeybee shaped keyboard comprising a panel and keys mounted thereon, wherein the panel has 50-140 keys distributed in the shape of flying honeybees, the width of the keys is 15-19 mm. The keys can be designed to be hexagonal in hornet nest arrangement, the keys can also be circular or square. The keyboard by the invention is easy to use with indefatigability, the effective area utilization ratio is increased, the number of keys is expanded for meeting the needs of keyboard development.
Owner:刘钦弟 +4
Semiconductor device and electric contact structure and manufacturing method thereof
PendingCN111640748ASmall sizeAvoid exceptionTransistorSemiconductor/solid-state device detailsDevice materialEngineering
The invention provides a semiconductor device and an electric contact structure and a manufacturing method thereof. At least a first contact plug closest to a peripheral region in a core region is formed above an isolation structure at the junction of the core region and the peripheral region and is in contact with the isolation structure; the bottom of the first contact plug can be completely overlapped on the isolation structure; or, a part of the bottom is overlapped with the isolation structure; the bottom of the other part is overlapped with the active region close to the core region of the isolation structure; and even the top of the first contact plug is at least connected with the top of the contact plug close to the upper part of the active region of the core region of the isolation structure, so that the electrical structure originally formed on the outermost side of the boundary of the core region can be at least partially formed above the isolation structure at the junction, the consistency of the electrical structure above the contact plug in the core region is ensured, and the performance of the electrical structure on the boundary of the core region is ensured.
Owner:FUJIAN JINHUA INTEGRATED CIRCUIT CO LTD
Secondary optical dodging mirror structure of light concentrating photovoltaic module
InactiveCN102323661AImprove spotlight effectUniform refractionPhotovoltaicsCondensersOptoelectronicsConcentrator photovoltaic
The invention relates to a secondary optical dodging mirror structure of a light concentrating photovoltaic module, which adopts a square taper with the upper part larger than the lower part. The upper surface of the square tapered dodging mirror is provided with a protruding spherical surface. Sunlight through the secondary optical dodging mirror and the spherical surface can be refracted to the bottom in the secondary optical dodging mirror to form a light concentrating area, and the light concentrating area is located at the bottom of the square taper. Therefore, the light concentrating effect can be improved effectively, and the sunlight can be uniformly refracted to a bottom chip.
Owner:深圳市百邦德装饰工程有限公司
Cathode patterns of electric semiconductor device and patterned arrangement method of cathode fingers thereof
ActiveCN102214686AImprove uniformityConvenience guaranteedSemiconductor devicesEngineeringElectric power
The invention discloses cathode patterns of an electric semiconductor device and a patterned arrangement method of cathode fingers thereof, which are widely applied in the design of cathode patterns in an electric semiconductor, an electric electronic device, an all-controlled thyristor and the like. The cathode patterns comprises equant sector areas and concentric rings which are divided with a circle centre as an axle; the intersecting places of the sector areas and the concentric rings are pattern units; fingers distributed in the sector areas and located in one ring are arranged along a circle arc of the ring; the outer edge lines of each circle of fingers are circular arcs; and the directions of the fingers are all parallel to the centre lines of the sector areas; and gate pole fast channels are left between adjacent two sector areas. The cathode patterns are transferred to the surfaces of chips by photoetching the designed photomask plates to finish the final manufacturing. According to the cathode patterns and the patterned arrangement method of the cathode fingers thereof, the utilization rate of the effective areas of the chips is increased; the opening / closing uniformityof each finger is improved; the balancing of the opening / closing difference of the fingers, caused by the distance from gate pole electrodes is facilitated; and the machining formation is conveniently realized.
Owner:ZHUZHOU CRRC TIMES SEMICON CO LTD
Common-path interference detecting device based on beam-split synchronism phase shifting and detecting method
InactiveCN102840823AImprove effective area utilizationGuaranteed measurement accuracyUsing optical meansLight beamPolarizer
A common-path interference detecting device based on beam-split synchronism phase shifting and a detecting method belong to the field of optical interference detection, and solve the problems that the existing optical phase shifting interference detecting method is complicated and difficult to operate, requires high-quality lambda / 4 wave plates, and has high cost and poor measuring precision. The scheme provided by the invention is as follows: the light beam emitted by a light source is incident to the light receiving surface of a collimating and expanding system through a polaroid, the outgoing beam collimated and expanded by the collimating and expanding system is incident to a first lens through two lambda / 4 wave plates, a to-be-detected object and a rectangular window, the outgoing beam converged by the first lens is incident to a second lens through a one-dimensional periodic grating, the diffracted light beam transmitted by the second lens is incident to a beam-split synchronism phase shifting system, the outgoing beam of the beam-split synchronism phase shifting system is received by the light receiving surface of an image sensor, and the image signal output end of the image sensor is connected with the image signal input end of a computer, so as to obtain the phase distribution of the to-be-detected object.
Owner:HARBIN ENG UNIV
Silicon wafer/battery sheet, photovoltaic battery assembly, carrier and design and arrangement method
PendingCN111463301AMaximum effective area utilizationMaximize effective area utilizationFinal product manufactureSemiconductor/solid-state device manufacturingElectrical batteryEngineering
The embodiment of the invention provides a silicon wafer / battery sheet, a photovoltaic battery assembly, a carrier and a design and arrangement method, and relates to the field of photovoltaics. According to the invention, the appearance of the silicon wafer / battery sheet is a rectangle or a quasi-rectangle with a chamfer, the lengths of two adjacent sides are x and y respectively, x is not equalto y, and the chamfer area of the quasi-rectangle with chamfer accounts for not more than 5% of the total area; the photovoltaic battery assembly is mainly formed by splicing a plurality of battery sheets; the carrier is provided with an opening, the length of the opening of the carrier is equal to the length of the short side of the silicon wafer / battery sheet, and the silicon wafer / battery sheetcan be inserted into the opening along the direction of the long side; the photovoltaic battery assembly is formed by splicing battery sheets, the specification of the photovoltaic battery assembly adapts to the limitation of logistics, glass and the like, and the power of a single sheet is relatively high; the carrier is suitable for supporting a super-large silicon wafer / battery sheet; and under the specific condition that the size of the assembly product is limited, the single-chip power of the assembly product is maximized by designing and using a reasonable silicon chip / battery sheet size.
Owner:RISEN ENERGY
Clean workshop
PendingCN110439331AImprove effective area utilizationReduce construction costsDucting arrangementsMechanical apparatusEngineeringCleaner production
The invention relates to the technical field of clean production, and discloses a clean workshop. The clean workshop comprises a workshop body, and the workshop body is internally provided with a coreclean room, and is provided with a core clean room upper interlayer, a core clean room lower interlayer and a core clean room return airway communicating with the core clean room upper interlayer andthe core clean room lower interlayer; a side span support area is arranged on the side, opposite to the core clean room, of the core clean room return airway, the side span support area is internallyprovided with a side span clean room and is provided with a side span clean room upper interlayer located at the top of the side span clean room and a side span clean room lower interlayer located atthe bottom of the side span clean room; and the side span clean room upper interlayer and the side span clean room lower interlayer separately communicate with the core clean room return airway, and / or, a side span clean room return airway for communicating with the side span clean room upper interlayer and the side span clean room lower interlayer is arranged between the side, away from the coreclean room, of the side span clean room and a wall of the workshop body.
Owner:S Y TECH ENG & CONSTR CO LTD +1
Method for building environmental-friendly and comfortable house
The invention relates to a method for building an environmental-friendly and comfortable house. In the method, a foundation, beams with the shape like a Chinese character tu, an L-shaped beam, the beams of a staircase and house pillars are built by reinforced concrete, and the floor slabs of floors, the floor slab of a top floor and walls are built by glass. The house built by using the method is environment-friendly, healthy, resource saving, comfortable and natural, and has the advantages of compact structure, light weight, simple construction, high removing and recovering rate, obvious economic and social benefits and extensive application in real estate industry.
Owner:余海清
Square-resistance-gradient internal parallel metallized safety film
InactiveCN108565115AImprove adhesionLow calorific valueFixed capacitor electrodesThin/thick film capacitorElectrical resistance and conductanceEvaporation
The invention provides a square-resistance-gradient internal parallel metallized safety film, which comprises a base film (1); a clad layer thickening band (2) evaporated along the longitudinal centeraxis of an evaporation surface of the base film (1); electrode plate units (3) distributed symmetrically at the two sides of the clad layer thickening band (2), wherein the electrode plate units (3)are separated into the continuously distributed electrode plate units (3) by blank separation belts (4) in longitudinal continuous distribution; and blank margin bands (5) distributed symmetrically atthe other sides of the electrode plate units (3). The plating thickness of the electrode plate units (3) is in trapezium distribution transversely, is largest at the place adjacent to the clad layerthickening band (2), and is smallest at the place adjacent to the blank margin bands (5), and thus a square-resistance-gradient electrode structure is formed. The thin-film capacitor is good in self-healing performance, high in utilization rate of the electrode coating effective area and low in total equivalent series resistance of the metalized coating electrode, and can effectively reduce the size of the capacitor and reduce production cost.
Owner:钱立文
Catalyst for preparing styrene through ethylbenzene dehydrogenation and preparation method of catalyst
InactiveCN103028415ATake off quicklyImprove catalytic performanceHydrocarbonsMetal/metal-oxides/metal-hydroxide catalystsHigh resistanceDehydrogenation
The invention relates to a catalyst for preparing styrene through ethylbenzene dehydrogenation and a preparation method of the catalyst and mainly solves the problems that in the prior art, the utilization of the effective outer surface of the catalyst is not full, and the catalyst reaction activity is low because of high resistance drop of a catalyst bed layer. In a Fe-K-Ce-Mo (W)-Mg-Ca basic catalyst system, the forming technology is utilized for producing quatrefoil striped catalysts. Through the technical scheme, the problems are perfectly solved, and the catalyst can be used in the industrial production of styrene.
Owner:CHINA PETROLEUM & CHEM CORP +1
Intelligent costume design management system
ActiveCN113040524AImprove the use of design managementEasy to analyzeTablesManufacturing computing systemsRotating discElectrical and Electronics engineering
The invention relates to the technical field of costume design, and discloses an intelligent costume design management system which comprises a table board, two guide grooves are symmetrically formed in the side edge of the table board, two supporting legs are fixedly installed at the bottom of the table board, dust collection grooves are formed in the two supporting legs, and a storage groove is formed in the side, away from a fixed baffle, of the side wall of the table board. The top of the table plate is provided with a dredging hole communicated with the guide grooves, the interior of the dredging hole is provided with a rotatable rotating disc, the rotating disc comprises a moving disc, the moving disc is provided with a moving hole, and the moving hole is connected with a connecting device in a clamped mode. According to the system, by setting a second magnetic ring, the connecting device, a cleaning groove and a cleaning disc, after the second magnetic ring downwards penetrates through a connecting hole and is inserted into the cleaning groove, a limiting column fixes the connecting device and a clamp to the rotating disc at the moment, the supporting legs of the limiting column and a first magnetic ring are magnetically attracted and fixed at the moment, the connecting device and the rotating disc are fixed into the dredging hole for the second time, and the multiple fixing effect is achieved.
Owner:山东圣梵尼服饰股份有限公司
Periphery exposure method in manufacturing of liquid crystal display panel
ActiveCN106249553ASolve the problem of excessive risk of sheddingReduce the use of areaPhotomechanical exposure apparatusMicrolithography exposure apparatusLiquid-crystal displayDark color
The invention discloses a periphery exposure method in manufacturing of a liquid crystal display panel. The method comprises the step of exposing the peripheral area of a mask plate, thereby forming N layers of film peripheral patterns on a main substrate, wherein N is more than or equal to 3; N layers of films are composed of dark color material film layers and light color material film layers; a measuring ruler is arranged on the peripheral pattern on the first layer of film; in the second to Nth layers, the upper and lower adjacent light color material film layers form a light color material film layer set; at least two layers of peripheral pattern positions in the light color material film layer set are locally or fully overlapped; the peripheral patterns of the dark color material film layers are not overlapped with the peripheral patterns of any light color material film layers above the dark color material film layers; the peripheral pattern positions of any two dark color material film layers are not overlapped. According to the periphery exposure method, the use area of each substrate with independent peripheral pattern is reduced and the use ratio of effective area of the main substrate is increased.
Owner:NANJING CEC PANDA LCD TECH
Electronic part machining machine
PendingCN111842013ALess pressure on demandImprove effective area utilizationLiquid surface applicatorsSemiconductor/solid-state device manufacturingReciprocating motionEngineering
The invention provides an electronic part machining machine, and particularly relates to the field of mechanical automation devices. Elements are sequentially arranged in a feeding pipe; the lower endof a feeding pipe guide rail is connected with a base surface; the two ends of the feeding pipe are embedded into sliding grooves, and the feeding pipe can move up and down in a reciprocating mode; one end of a guide groove is connected with one end of the feeding pipe, and the lower ends of the elements are located in the guide groove; a material receiving mechanism comprises a plurality of material receiving pipes, the material receiving pipes are sequentially stacked in the horizontal direction, the cross sections of the material receiving pipes are identical to the cross sections of the elements, and the ends of the material receiving pipes are connected with the other end of the guide groove; a shearing mechanism comprises a cutter cylinder, the cutter cylinder is arranged on the base surface, and a cutter is arranged at the end part of an ejector rod of the cutter cylinder; a cutting board matched with the cutter is arranged on a base plate; a glue dispensing mechanism is provided with a glue dispensing head, and the glue dispensing head can move up and down; the feeding pipe is arranged on the side face of a vibration disc and extends to the position above the elements; andan ejector rod of an air cylinder is inserted into the feeding pipe. According to the electronic part machining machine, the production efficiency can be improved, and the production cost can be reduced.
Owner:吴江市永健达金属制品有限公司
Bee-shaped keyboard
InactiveCN1417675AMeet development needsFully utilizeInput/output for user-computer interactionSwitch side locationHoneycombEngineering
The bee-shaped keyboard includes a panel and 50-140 keys arranged in the shape like a flying bee. Each key is 15-19 mm wide. The keys can be designed in hexagon and are arranged in honeycomb shape; or, the keys are circular of squared and arranged densely. The keyboard is easy to use and produces less fatigue, and has high area utilization.
Owner:刘钦弟 +4
Implantable infusion port and using method
The invention discloses an implantable infusion port. The implantable infusion port comprises a port body, a liquid storage cavity formed in the port body, a connecting pipe used for fixing a catheterand the port body and an injection piece fixedly arranged on the port body, wherein the liquid storage cavity is provided with a first opening and a second opening; the minimum caliber of the first opening is larger than the maximum caliber of the second opening; the injection piece is fixed into the first opening; the catheter communicates with the second opening; and the first opening is obliquely formed. The implantable infusion port has the advantages that the overall height of the infusion port in the implantation part of a patient is reduced, the pulling force of the infusion port on the skin of the patient is reduced, and the pain and foreign body sensation of the patient are reduced; in cooperation with a linear type non-injury needle, medical staff can operate and use the implantable infusion port conveniently, the effective area utilization rate of a puncture window is increased, the operation complexity is reduced, and the occurrence rate of postoperative mechanical phlebitis is reduced; and the occurrence rate of avascular necrosis caused by postoperative skin tension deficiency is reduced.
Owner:SUZHOU LINHWA MEDICAL DEVICES CO LTD
A single cell and stack of a wave-shaped fuel cell
ActiveCN112615020BImprove effective area utilizationImprove power densityFinal product manufactureFuel cellsManufacturing technologyFuel cells
The invention relates to a corrugated fuel cell single cell and electric stack, the single cell includes an anode plate (1), a cathode plate (2) and a membrane electrode assembly (3), and the anode plate (1) is a corrugated shaped structure, on which a number of anode flow channels (101) and anode ridge plates (102) are arranged side by side, and the cathode plate (2) adopts a wave-shaped structure intermeshed with the anode plate (1), on which the A number of cathode flow channels (201) and cathode ridge plates (202), the membrane electrode assembly (3) is installed between the anode plate (1) and the cathode plate (2), and the single cell is presented along the width direction of the flow channel Wave-shaped structure; multiple single cells are stacked in sequence to form a fuel cell stack. Compared with the prior art, the present invention significantly increases the reaction area per unit volume of the fuel cell through the wave-shaped structural design, thereby increasing the power density of the fuel cell, and has less changes to the existing processing and manufacturing technology, and has high production feasibility .
Owner:上海氢晨新能源科技有限公司
Cathode patterns of electric semiconductor device and patterned arrangement method of cathode fingers thereof
ActiveCN102214686BImprove uniformityConvenience guaranteedSemiconductor devicesEngineeringElectric power
The invention discloses cathode patterns of an electric semiconductor device and a patterned arrangement method of cathode fingers thereof, which are widely applied in the design of cathode patterns in an electric semiconductor, an electric electronic device, an all-controlled thyristor and the like. The cathode patterns comprises equant sector areas and concentric rings which are divided with a circle centre as an axle; the intersecting places of the sector areas and the concentric rings are pattern units; fingers distributed in the sector areas and located in one ring are arranged along a circle arc of the ring; the outer edge lines of each circle of fingers are circular arcs; and the directions of the fingers are all parallel to the centre lines of the sector areas; and gate pole fast channels are left between adjacent two sector areas. The cathode patterns are transferred to the surfaces of chips by photoetching the designed photomask plates to finish the final manufacturing. According to the cathode patterns and the patterned arrangement method of the cathode fingers thereof, the utilization rate of the effective areas of the chips is increased; the opening / closing uniformityof each finger is improved; the balancing of the opening / closing difference of the fingers, caused by the distance from gate pole electrodes is facilitated; and the machining formation is conveniently realized.
Owner:ZHUZHOU CRRC TIMES SEMICON CO LTD
One-time Total Diffusion Technology of Phosphorus and Boron Liquid Source
ActiveCN104766790BSmall amount of feedbackImprove effective area utilizationSemiconductor/solid-state device manufacturingPhysical chemistryConcentration gradient
Owner:SUZHOU QILAN POWER ELECTRONICS
Portable plastic flat handle drum
ActiveCN101920808BWith antistatic functionImprove effective area utilizationRigid containersContainer handlesEngineeringExhaust pipe
The invention provides a portable plastic flat handle drum which comprises a drum opening, a drum, a filling pipe, a drum cover, an exhaust hole and three lifting handles, wherein the drum comprises a drum body and a drum bottom; one end of the filling pipe is detachably installed on the drum opening positioned at the top of the drum through a thread structure, and the other end can extend towards the inside or the outside of the drum; the drum cover is connected with the drum through a connecting ring, one end of the connecting ring is sleeved at the bottom of the drum opening through a ringstructure, and the other end is connected with the inner cover of the drum cover after penetrating through the outer cover of the drum cover; the exhaust hole is arranged on the upper surface of the drum opening, and the exhaust hole extends towards the inside of the drum from the upper surface of the drum opening along the direction of a drum opening wall and is connected with an exhaust pipe; and the three lifting handles are arranged at the upper end of the drum. The flat handle drum is convenient to carry and use and satisfies the requirement on rapid application.
Owner:PETRO OIL & LUBRICANT RES INST OF THE GENERAL LOGISITIC DEPT OF PLA +1
A clothing intelligent design management system
ActiveCN113040524BImprove the use of design managementEasy to analyzeTablesManufacturing computing systemsEngineeringMechanical engineering
Owner:山东圣梵尼服饰股份有限公司
Orthogonal double-grating based detecting device for synchronous phase shift common-light path interference and detecting method therefor
InactiveCN102865810BImprove effective area utilizationGuaranteed measurement accuracyUsing optical meansGratingPolarizer
Owner:HARBIN ENG UNIV
Common-path interference detecting device based on beam-split synchronism phase shifting and detecting method
InactiveCN102840823BImprove effective area utilizationGuaranteed measurement accuracyUsing optical meansPolarizerLambda
A common-path interference detecting device based on beam-split synchronism phase shifting and a detecting method belong to the field of optical interference detection, and solve the problems that the existing optical phase shifting interference detecting method is complicated and difficult to operate, requires high-quality lambda / 4 wave plates, and has high cost and poor measuring precision. The scheme provided by the invention is as follows: the light beam emitted by a light source is incident to the light receiving surface of a collimating and expanding system through a polaroid, the outgoing beam collimated and expanded by the collimating and expanding system is incident to a first lens through two lambda / 4 wave plates, a to-be-detected object and a rectangular window, the outgoing beam converged by the first lens is incident to a second lens through a one-dimensional periodic grating, the diffracted light beam transmitted by the second lens is incident to a beam-split synchronism phase shifting system, the outgoing beam of the beam-split synchronism phase shifting system is received by the light receiving surface of an image sensor, and the image signal output end of the image sensor is connected with the image signal input end of a computer, so as to obtain the phase distribution of the to-be-detected object.
Owner:HARBIN ENG UNIV
Sanitary absorption article and preparation method thereof
InactiveCN114010402ANo frequent replacementIncrease profitAbsorbent padsBaby linensMechanical engineeringComposite material
The invention provides a sanitary absorption article and a preparation method thereof. The sanitary absorption article comprises an elastic breathable part and a replaceable absorption core body; fixing parts are arranged on the two sides of the elastic breathable part; the replaceable absorption core body is fixed on the elastic breathable part through the fixing parts; the replaceable absorption core body comprises a liquid-permeable surface layer, an absorber and a bottom film which are sequentially arranged from top to bottom; the absorber is a non-rubber core body; the replaceable absorption core body further comprises a wrapping layer; the absorber is wrapped in the wrapping layer. The sanitary absorption article prepared by the method has the characteristics of good air permeability, good dryness, large liquid absorption amount and environmental protection.
Owner:诺宸股份有限公司
Polar plate, fuel cell and assembly method of fuel cell
PendingCN112993291AImprove effective area utilizationHigh positioning accuracyCollectors/separatorsFuel cellsMechanical engineering
The invention discloses a polar plate, a fuel cell and an assembly method of the fuel cell. A plurality of open notches are formed in the edge of the polar plate, at least one part of the notches are positioning notches, and the positioning notches are positioned on corresponding positioning elements from the open positions. According to the polar plate, the positioning notches are formed in the edge of the polar plate, the influence of the positioning notches on the polar plate is reduced, the effective area utilization rate of the polar plate is improved, the position precision of polar plate assembly is improved due to the arrangement of the multiple positioning notches, and the open positioning notches facilitate disassembly of positioning elements after polar plate assembly is completed; the assembling efficiency of the polar plate is improved.
Owner:FTXT ENERGY TECH CO LTD
A high-efficiency guide type cotton cleaning device for textile production
ActiveCN112458576BSlow downReduce pulling forceFibre cleaning/opening machinesLap-winding devicesTextile technologyEngineering
The invention discloses a high-efficiency diversion type cotton cleaning device for textile production, which relates to the field of textile technology; in order to solve the problem of cotton thread pulling and breaking; it specifically includes a base, the top outer wall of the base is connected with a cotton cleaning mechanism through a lifting mechanism, the The top outer wall of the base is respectively provided with a filter mechanism and an adaptive adjustment mechanism. The adaptive adjustment mechanism includes two height limit rollers and a hollow roller. The top outer wall of the base is fixed with two vertical plates by bolts. The inner wall of the vertical plate There is a chute, the inner wall of the chute is slidably connected with a slider, the hollow roller is connected to the inner wall of the slider through a rotating shaft, and the two height-limiting rollers are connected to the inner wall of the vertical plate through another rotating shaft. A distance sensor is clamped on the top of the board close to the inner wall of the chute, and the distance sensor is electrically connected to a buzzer. The projections of the two height-limiting rollers on the base are respectively located on both sides of the hollow roller. The present invention prevents it from breaking.
Owner:湖南尚珂伊针纺有限公司
Catalyst for preparing styrene by ethylbenzene dehydrogenation and preparing method thereof
InactiveCN103028414ATake off quicklyImprove catalytic performanceHydrocarbonsMetal/metal-oxides/metal-hydroxide catalystsDehydrogenationCompressive strength
The invention relates to a catalyst for preparing styrene by ethylbenzene dehydrogenation and a preparing method thereof, which aims at solving the problems of the prior art that the bed resistance drop of the catalyst is high due to low compressive strength and poor chalk resistance performance, and the reaction activity of the catalyst is low. Aiming at well solving the problems, the catalyst and the method adopt the technical scheme that a catalyzing system containing Fe-K-Ce-Mo(W) is adopted, and a catalyst of which the axial periphery is provided with a spiral pattern or a circular groove pattern different in width, depth and shape is produced. The catalyst and the method can be used for the industrial production of the styrene.
Owner:CHINA PETROLEUM & CHEM CORP +1
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