72 results about "Large aspect ratio" patented technology

The invention relates to the technical field of composite materials, in particular to a large-length-diameter-ratio composite pipe fitting forming method which comprises the steps of S1, core mold splicing, S2, air pipe sleeving, S3, paving and winding, S4, core mold dissolving, S5, sealing and depoling, S6, flange mounting, S7, mold closing and bag making and S8, heating and curing. Wrapping the hot melt adhesive at the bonding position by using an aluminum foil adhesive tape, then removing the aluminum foil adhesive tape, sleeving the bonded core mold by using a release air pipe longer than the core mold, pouring acetone into the release air pipe, dissolving the EPS foam rod, completely sealing the inlet end of the release air pipe, and finally sealing the release air pipe. And the sealed release air pipe is pulled out of the pipe fitting prefabricated body, the pipe fitting prefabricated body is obtained, and then the composite pipe fitting is manufactured in cooperation with a female die and a bag. The technical problem that the large-length-diameter-ratio composite pipe fitting with the perfect inner surface effect and the perfect outer surface effect cannot be manufactured through an existing technology on the premise that the mechanical property of a product is guaranteed is solved.

The invention discloses a multi-layer combined unmanned aerial vehicle and a control method, and relates to the field of high-altitude long-endurance unmanned aerial vehicles, the multi-layer combined unmanned aerial vehicle comprises a plurality of sub-aircrafts, each sub-aircraft comprises a fuselage, an empennage, wings, wingtips and protrusions, the wingtips are arranged at the ends, away from the fuselage, of the left and right wings, and the wingtips can be in butt joint with the wingtips of the other aircraft; protrusions are arranged on the upper surface and the lower surface of each wing, the end faces of the protrusions can be in butt joint with the end faces of the protrusions of another airplane, and the protrusions can be used for containing an aircraft undercarriage at the same time. Through aggregation and recombination of a plurality of small unmanned aerial vehicles, a multi-layer combined unmanned aerial vehicle with a high aspect ratio is formed, and the combined unmanned aerial vehicle can effectively overcome the defect that the rigidity of wings of a traditional unmanned aerial vehicle with a high aspect ratio is insufficient and can carry an oversized radar conformal antenna with long wave bands such as meter waves and the like. And long-time air-hang detection of high-value targets such as stealth aircrafts and the like is realized.

The invention belongs to the technical field of micro-nano processing, and particularly relates to a Pt-HSQ-based high-resolution X-ray Fresnel zone plate and a preparation method thereof. According to the X-ray Fresnel zone plate, a Pt-HSQ metal-inorganic material system is adopted, a diffraction structure with a large aspect ratio and Pt material quasi-periodic dense stripes specially needed by an X-ray zone plate lens is formed through electron beam lithography and an ALD process, and diffraction focusing from a soft X-ray wave band to a hard X-ray wave band and imaging with an amplification function are achieved. The wave zone plate has excellent mechanical stability, and the irradiation resistance and morphology retentivity of the wave zone plate under high-energy irradiation are remarkably improved. And high-resolution X-ray focusing elements with different energy wavebands and different focal lengths can be prepared according to geometric design and material selection of the wave zone plate. The lens is suitable for microscopic imaging, coherent diffraction imaging, X-ray spectrum, nanometer detection and other scenes of a synchrotron radiation or off-line laboratory X-ray light source, and has wide popularization value and application prospect.

The application provides a large height-diameter ratio titanium-aluminum alloy blank manufacturing device and method. The method comprises the following steps: S10, designing a blank: designing a forging according to a target titanium-aluminum alloy blade; the forging comprises a blade root part, a blade body part and a blade crown part; presetting the shape and size of the blank according to the forging; S20, obtaining a forming die and a raw material: preparing the forming die according to the preset shape and size of the blank in step S10, and selecting a bar; S30, adopting the forming die to perform upsetting forming on the bar to obtain the blank; and performing hot working on the blank to obtain a target titanium-aluminum alloy blade forging. The large height-diameter ratio titanium-aluminum alloy blank manufacturing method and device can solve the problems of blank instability of a large height-diameter ratio metal bar and high mold cost caused by titanium-aluminum alloy isothermal forming, realize non-isothermal forming of a large height-diameter ratio titanium-aluminum alloy special-shaped part, improve material utilization, reduce waste of titanium-aluminum alloy material, and effectively reduce the machining cost of the blade.

The utility model relates to the technical field of runner groove forming, in particular to a large-depth-to-width-ratio runner groove forming device which comprises a base, a guide column is arranged on the outer wall of the top end of the base, a cover plate is fixedly connected to the outer wall of the top end of the guide column, and a support is fixedly connected to the outer wall of the top end of the cover plate. The forming mechanism is arranged on the outer wall of the bracket; the forming mechanism comprises an electric push rod installed on the outer wall of the top end of the support, one end of a piston rod of the electric push rod is fixedly connected with a lifting frame, an installation groove is formed in the outer wall of the bottom end of the lifting frame, a limiting plate is installed on the inner wall of the installation groove, and a first sliding groove is formed in the outer wall of one side of the cover plate. According to the runner groove forming device, part of internal stress of metal can be released in the forming process through heating, so that the possibility of subsequent deformation is reduced, the template can be quickly replaced according to the forming requirement of the runner groove, the forming of the metal sheet runner groove is more stable, and the forming efficiency of the runner groove forming device is improved.

The invention discloses a low-heat-input large-depth-to-width-ratio welding seam forming regulation and control method, and belongs to the technical field of laser machining. The invention aims to solve the problems of cracks, grain coarsening and welding deformation during welding of a large-thickness heat input sensitive material and the problem that a low-heat input pulse laser welding technology is not applied to thick plate welding. The method comprises the steps of 1, tacking a workpiece; 2, placing on a welding platform of a vacuum laser welding device, adjusting the welding position and fixing; 3, welding; and fourthly, welding parts are taken out of the cabin. The method is used for forming regulation and control of the welding seam with the low heat input and the large depth-to-width ratio.

The present application discloses a chromium coating modified on the basis of V2O5 and a preparation method therefor. Components of a solid-phase diffusion agent used are: Cr: 30-50%; V2O5: 2-7%; SiC: 30-50%; NH4Cl: 1-5%; La2O3: 0-5%; and Y2O3: 2-5%. The chromium coating prepared in the present application has a uniform structure, a moderate thickness, sufficient diffusion of Cr atoms, and good metallurgical bonding between a diffusion layer and a substrate, is suitable for austenitic steel and high-temperature alloy components which are used in large boilers, oil and gas field transportation pipelines and other workpieces having a large aspect ratio and various complex shapes, and achieves excellent industrial mass production benefits.

The invention relates to the technical field of automatic assembly of initiating explosive device medicament equipment, and discloses a device and method for automatically rolling and assembling a copper removal agent in a combustible cartridge case with the large length-diameter ratio, the device comprises a supporting frame, the supporting frame is placed on the ground and used for placing other mechanisms, and a copper removal agent feeding mechanism is arranged on the supporting frame; the winding and shearing module workbench and the assembly executing mechanism are arranged on the upper layer of the supporting frame; the taking and placing clamping mechanism and the feeding and discharging mechanism are arranged on the lower layer of the supporting frame; by integrating the five core advantages of rapid feeding and discharging, high-precision automatic winding and shearing, automatic assembling, coaxial conveying and automatic disassembling and assembling and aiming at the characteristics that the length-diameter ratio of the large-length-diameter-ratio combustible cartridge is too large, the pipe wall is prone to deformation, and the structure is prone to damage, coaxial positioning operation and flexible process installation are adopted, full-process automation of winding and assembling is achieved, and the production efficiency is improved. The problems of poor manual operation consistency, uncontrollable quality, low efficiency, insufficient safety protection and the like in the prior art are solved.

A method for forming a back-illuminated image sensor includes providing a first semiconductor substrate having opposite first and second faces, thinning the second face, forming a plurality of deep trenches in the first semiconductor substrate, filling a flowable material into the deep trenches, and irradiating the flowable material with a UV light curing process to form first isolation structures to fill the deep trenches. By forming a flowable material in the deep trenches, and irradiating the flowable material with a UV light curing process to form first isolation structures to fill the deep trenches. Since the temperature of the UV light curing process is low, damage to device structures formed on the first semiconductor substrate can be reduced. In addition, the flowable material has good filling properties, and can be used to fill deep trenches with a large aspect ratio, so that the density of the finally formed first isolation structures is high, and the isolation effect can be effectively improved.

The invention provides a large aspect ratio conductive circuit ink-jet printing method, which specifically comprises the following steps: in an ink-jet printing process, controlling an emission angle of an infrared laser, keeping an intersection point of laser emitted by the infrared laser and an ink droplet falling track of a printing head above a printing substrate, and presintering and curing ink droplets before the ink droplets fall on the surface of the printing substrate; the invention further provides an ink-jet printing device for the conductive circuit with the large height-width ratio and an application method of the ink-jet printing device. The nano-silver ink for ink-jet printing is rapidly sintered through laser in the flying process, the high-performance conductive trace can be directly manufactured on the substrate, and the manufacturing efficiency and the quality of the final electronic trace are remarkably improved through the collaborative process of presintering in the ink droplet flying process and synchronously preheating the substrate; the large-aspect-ratio conductive circuit ink-jet printing device for achieving the method is simple in structure, flexible and convenient to operate and high in practicability, and the focusing accuracy of laser and ink droplets is improved.

The application discloses a large-length-diameter-ratio rotor structure with a separated turbine, comprising a four-stage fan, a two-stage front turbine, a single-stage rear turbine, four bearing supporting points, a connecting structure and the like. A 1-2-1 four supporting point supporting scheme is adopted, and an intermediate supporting point is additionally arranged at the front turbine to control the bending deformation of the large-length-diameter-ratio rotor. Meanwhile, the two-stage front turbine in the middle section of the rotor is designed as an integrated ring cavity structure, the structure angular rigidity is enhanced, and the overall gyroscopic moment effect is exerted. The front turbine and the rear turbine are connected with the rotor shaft through a large-space double-centering-face stop mouth-toothed sleeve connection, the bending moment bearing capacity is improved, the gyroscopic moment of the wheel disc is fully applied to the shaft section, the rotor resonance speed safety margin is improved, and the bending deformation is controlled. The application is the first rotor structure proposed for a new engine with an inter-stage combustion chamber, and meets the dynamic design requirements of the rotor with the characteristics of the multi-stage separated turbine and the large-length-diameter ratio.

The utility model relates to a kind of general tool of large long diameter ratio special-shaped shell rotary inner chamber spraying, including tool table, annular support and compensation mechanism, two annular supports are fixedly installed in the tool table, the annular support top is uniformly distributed with three compensation mechanisms, large long diameter ratio special-shaped shell is penetrated two disc inner hole, is placed into tool table, by rotating adjusting lever and drive adjusting seat close to shell, wherein adjusting lever is screw-mounted with fixed seat, to realize the mobile adjustment of adjusting seat, multiple movable column is equipped on the side of adjusting seat, multiple column is equipped with abutting head close to shell body one end, abutting head is attached to shell surface, since shell is special-shaped shell, the deformation amount of multiple column end is not one after contacting shell, column moves in circular groove, and ring body moves, ring body moves will extrude spring, and abutting head one end is equipped with rubber layer cover, and is attached to shell, increase friction, protect shell surface.

This invention discloses a turning device for square steel used in elevator racks after rolling, belonging to the field of square steel turning technology. It aims to solve problems encountered by existing devices when machining square steel with large aspect ratios and poor rigidity, such as easy vibration in the middle section, interference from positioning and vibration coupling, low centering accuracy, and increased errors due to steel chip jamming. The device includes a turning equipment base, a machine tool guide rail base, a chatter suppression mechanism, a positioning and locking mechanism, and a flexible stabilizing mechanism. The chatter suppression mechanism slides synchronously with the tool holder adjustment table, and adaptively supports the middle section of the square steel through bimetallic strip thermal induction. A displacement sensor detects deformation in real time. The positioning and locking mechanism is linked by an electrical signal, driving the centering component to automatically center via a telescopic rod and gear rack. A metal conductive sheet contacts an electrical contact button to trigger an electromagnet, causing the magnetorheological fluid to harden and lock the ejector pin. The flexible stabilizing mechanism achieves radial stabilization through a triangular turntable and flexible support rollers, and synchronously links with an air duct to blow away steel chips. The three mechanisms work together to form a closed loop, improving machining accuracy and stability, and adapting to the large-scale machining needs of square steel for elevator racks.

The present application relates to the field of extreme ultraviolet lithography protective film preparation, in particular to a preparation method of a single-walled carbon nanotube film with high strength and high extreme ultraviolet transmittance. In the process of growing single-walled carbon nanotubes by floating catalyst chemical vapor deposition, selenium is used as a growth promoter, and the weak etching effect of hydrogen flow is regulated to reduce amorphous carbon deposition and prolong catalyst life, so as to realize the controlled preparation and in-situ dry collection of single-walled carbon nanotubes with high purity, high crystallinity and large aspect ratio. The diameter distribution of the single-walled carbon nanotubes is 1.6-3 nm, the aspect ratio is >30000, the Raman spectrum G / D ratio is >150, and the purity of the prepared single-walled carbon nanotubes is >98wt.%. The prepared single-walled carbon nanotube film not only has excellent mechanical properties but also has adjustable EUV transmittance, and at the same time meets the particle interception and EUV high transmittance requirements of the EUV lithography protective film, and is an ideal protective film for EUV lithography mask.

The invention provides a method and device for strengthening the surface of a large-length-diameter-ratio rotary body component. The method comprises the following steps that A, the large-length-diameter-ratio rotary body component is clamped to a rotary clamping system; b) axially moving the rotary body component with the large length-diameter ratio in an autorotation state, and sequentially passing through an air cannon radial forging area and a nitrogen ion heat treatment area; and C) after the nitrogen ion heat treatment is finished, cooling to room temperature in a protective atmosphere to obtain the surface-strengthened revolution body component with the large length-diameter ratio. The air cannon is used for replacing a mechanical forging hammer, mechanical damage is avoided, and the method is particularly suitable for thin-wall and inner hole strengthening; forging and nitriding are continuous, a dislocation / grain boundary network generated by forging serves as a rapid nitrogen diffusion channel, and the infiltration speed and the infiltration layer binding force are remarkably improved. And forging temperature rise is directly used for subsequent nitriding, energy is saved, consumption is reduced, and tissue change caused by secondary heating is avoided. And the design of rotation, axial movement and array cannon groups is adopted, so that the surface strengthening uniformity of the super-long workpiece is ensured.

The application discloses a method for preparing a microlens array with a large height-width ratio by 3D printing, which comprises the following steps: (1) printing a printing material on a substrate by a 3D printing method to obtain a micrometer-level microlens droplet array; (2) inversely inverting the printed substrate until the height of the droplet no longer changes; and (3) solidifying the inverted droplet to obtain a microlens array with a large height-width ratio. The application further discloses a device for preparing a microlens array with a large height-width ratio. According to the application, the droplet is inverted, and under the action of gravity, the droplet is retracted downward to overcome the surface tension, so that a balance state of gravity and surface tension is achieved, and the height-width ratio of the droplet is improved. Moreover, the shortest inversion time can be greatly reduced by heating, and the height-width ratio of the droplet is further improved. The method of the application does not need complicated material processing, reduces the requirements for the viscosity, surface tension and thixotropy of the material, increases the application range of the printing material, and greatly improves the uniformity of the microlens array.

The intelligent damping device comprises a base, a piezoelectric laminated beam, a bearing, a bearing sleeve, an outer sleeve, an inner sleeve and a vibration isolation net, the inner sleeve, the vibration isolation net and the cutter are coaxially arranged, the vibration isolation net is located between the cutter and the inner sleeve, the bearing is arranged on the cutter in a sleeving mode, the bearing sleeve is arranged on the outer side of the bearing, and the piezoelectric laminated beam is arranged on the outer side of the bearing. The outer sleeve and the cutter are coaxially arranged, one end of the outer sleeve is connected with the base, the other end of the outer sleeve is suspended, and the multiple piezoelectric laminated beams are evenly arranged in the circumferential direction of the cutter. One end of the piezoelectric laminated beam is connected with the base, and the other end is connected with the bearing sleeve; the inner sleeve is connected with the handle; a piezoelectric layer capable of outputting acting force is arranged in the piezoelectric laminated beam, the outer sleeve is a rigid sleeve, and the piezoelectric laminated beam is connected with a piezoelectric actuator. Vibration reduction is conducted in the mode that active vibration suppression and passive vibration isolation are combined, and compared with a single passive vibration reduction or active vibration suppression mode, the vibration reduction effect is better improved, and the cutting stability is improved.

This invention relates to a method and apparatus for object detection and determining training samples for object detection. The method, when dividing positive and negative samples, determines positive samples of target boxes based on the aspect ratio of the target boxes in the training image. Furthermore, when the aspect ratio of a target box is large, a first preset threshold inversely proportional to the aspect ratio is set. This results in a smaller first preset threshold when the aspect ratio of the target box is large. Using the intersection-union ratio (IUU) of candidate boxes and target boxes, along with the first preset threshold, can also effectively determine whether a candidate box is a positive sample, avoiding missed detections. This lays the foundation for training an object detection model based on positive and negative samples of target boxes in the training image. The trained object detection model can better learn the position and feature information of the object to be detected, reducing the missed detection rate of objects with large aspect ratios, thereby improving the accuracy of object detection.

This invention relates to a Co-doped Ni3V2O8 electrocatalytic material, its preparation method, and its applications. The electrocatalytic material has a microstructure consisting of nanofibers composed of a mixture of Co-doped Ni3V2O8 particles. The nanofibers exhibit a uniform and continuous morphology, with diameters ranging from 50 to 120 nm and lengths from 1 to 5 μm, possessing a large aspect ratio of 10 to 100. This invention utilizes Co doping and directly prepares the Co-doped Ni3V2O8 electrocatalytic material via electrospinning combined with calcination. This significantly improves the oxygen reduction performance of Ni3V2O8 materials, offering low cost, simple operation, and promising application prospects.

This invention discloses a method for machining long, large blades. By dividing the blade into three differentiated machining areas—the root, the middle section, and the tip—and matching the clamping constraint stiffness, milling process parameters, and tool path to each area, combined with real-time stress and deformation monitoring during machining, the machining coordinates are dynamically corrected. Multi-stage low-temperature aging is then used to eliminate accumulated machining stress, effectively solving the problems of deflection deformation, surface vibration marks, and dimensional deviations in the machining of long blades. This invention can significantly improve the blade profile accuracy, surface quality, and machining stability of long, large blades, reduce the scrap rate, and greatly improve batch processing efficiency. It is suitable for the precision machining of various ultra-long, large chord width, and large aspect ratio power blades.

This invention provides an active vibration suppression and damping device and method for a projectile model with a large aspect ratio. The device includes an angle-of-attack mechanism, a vibration-damping support rod, and a balance. It also includes an active vibration suppression module and one or more honeycomb particle damping modules installed on the projectile's head. The active vibration suppression module includes a tail-end vibration suppression connector connecting the angle-of-attack mechanism and the vibration-damping support rod, multiple piezoelectric ceramic promoters installed on the tail-end vibration suppression connector, a piezoelectric fiber MFC installed on the projectile body, and a vibration monitoring component. The honeycomb particle damping module includes honeycomb cavities, each cell of which is filled with high-density particles. Shear-thickening material is filled in the gaps between the honeycomb cavities and the high-density particles. Interconnected flow holes are provided between adjacent cells to allow the shear-thickening material to flow between different cells. This embodiment, through the honeycomb particle damping module and the active vibration suppression module, achieves vibration suppression of multi-mode vibrations in the projectile model, improving the accuracy of model load measurement.

A transparent conductive circuit, a touch module, a display screen, an antenna module, and an electronic device are disclosed. The transparent conductive circuit includes a transparent substrate and a grid. The transparent substrate supports the grid, which transmits electrical signals. The front side of the transparent substrate has multiple staggered grooves. The grid includes multiple staggered conductive elements, each disposed in a groove. A conductive layer covers the two sidewalls and the bottom wall of the groove, and is connected to conductive blocks, partially covering the conductive blocks. Each conductive element in the grid includes a conductive layer and conductive blocks. The conductive blocks connect a first part and a second part, and are also connected to the surface of a third part facing away from the bottom wall of the groove. The conductive layer partially surrounds the conductive blocks, which makes the conductivity of the grid more stable. The conductive elements can have a large aspect ratio, which allows the grid to have a lower sheet resistance while maintaining a certain light transmittance, thereby improving the conductivity of the transparent conductive circuit.

Aspects of the present disclosure relate generally to systems and methods for use in the implementation and / or operation of quantum information processing (QIP) systems, and more particularly, for beam shaping for large aspect ratios with a single cylindrical lens. In some aspects, a QIP system includes a laser source, a cylindrical lens, and an ion trap. The laser source produces a Gaussian laser beam. The cylindrical lens is aligned with at least a portion of the laser beam and shapes the laser beam into a beam having an anamorphic shape. The ion trap includes a plurality of trapped ions addressable by the beam. The cylindrical lens orients the beam relative to the ion trap such that a fast axis of the beam is aligned with an axis of the plurality of trapped ions, and a slow axis of the beam is traverse to the plurality of trapped ions.

This invention relates to a clamping device and method for side polishing of large-aperture square optical elements. The invention uses a large-face fixing part and a side-face fixing part to fix both sides of the optical element to the clamping device. The rotation axis of the clamping device (i.e., the rotation axis of the base) is at a certain distance from the rotation axis of the side polishing machine. The side polishing machine's disc rotates at a certain speed along its own axis, while the clamping device simultaneously drives the element to rotate at a certain speed along the clamping device's axis. Through the relative movement between the polishing disc and the side of the optical element, the purpose of side polishing of the optical element is achieved. The clamping device, with clamping in a first and second direction on both sides of the optical element, ensures that the element does not shift during the side polishing process. The material removed from the polished end face of the optical element is uniform, improving the repeated clamping position accuracy and side polishing quality and efficiency of optical elements with large aspect ratios.

The application discloses a forming method for controlling deformation of a large-length-thickness-ratio composite structure, and belongs to the technical field of forming of composite structures. The application firstly determines a verification test object for process simulation of thermal autoclave forming-curing deformation coupling of multiple physical fields, so as to reduce the cycle and cost of the verification test; for the verification test object, the reliability of the process simulation result is determined by using the verification test result, the simulation material parameters are determined, the curing deformation of the composite structure is estimated, the applicable bonding forming process is determined, and finally the composite structure meeting the design requirements is formed. For the components with uneven thickness, the application adopts a tooling forming of a multi-zone independent temperature control structure, so that the curing deformation of the components can be effectively controlled. Compared with the traditional forming method, the application not only can effectively solve the problem of curing deformation of the large-length-thickness-ratio composite structure exceeding the range, but also greatly reduces the trial production cost and shortens the trial production cycle.

The invention discloses a welding method for a large-length-diameter-ratio stainless steel assembly, and relates to the technical field of stainless steel workpiece welding. The welding method for the stainless steel assembly with the large length-diameter ratio comprises the steps of pre-welding treatment, workpiece butt joint and assembly clearance measurement, vacuum tack welding and clearance remeasurement, heat dissipation tool assembly and vacuum seal welding, fusion welding and heat preservation treatment. By optimizing the technological process and matching with a special heat dissipation tool, the problems of welding deformation and substandard coaxiality of the stainless steel assembly with the large length-diameter ratio are effectively solved. The welding defect source is reduced through pre-welding treatment, the precision basis is guaranteed through measurement and remeasurement of an assembly gap, heat deformation is cooperatively restrained through sealing welding, fusion welding and subsequent heat preservation treatment in a vacuum environment, high coaxiality of the assembly is guaranteed, meanwhile, the requirements for the effective welding depth and the airtight performance are met, the welding bead quality is good, and the mechanical property is good; the welding reliability is obviously improved, the service life of the assembly is obviously prolonged, and the strict welding requirement of the large-length-diameter-ratio stainless steel assembly is met.

This invention discloses a vibration-resistant and heat-dissipating support mechanism for a large aspect ratio rectangular mirror of an astronomical spectroscopic imager, relating to the field of astronomical optical instrument design and manufacturing. It is applicable to situations where the mirror assembly mounting bracket and the mirror assembly materials are mismatched, providing vibration-resistant and heat-dissipating support for the mirror. The mechanism includes: a mirror chamber assembly, a vibration-isolated and heat-dissipating rigid support structure, and a vibration-isolated and heat-dissipating flexible structure. It can maintain the mirror surface accuracy even under external random vibration interference and temperature changes, ensuring that the mirror mounting bracket and mirror assembly, using materials with different coefficients of thermal expansion, maintain the mirror surface accuracy. Its key features are: the mirror support structure uses optical adhesive to prevent direct contact between the mirror chamber and the mirror, providing thermal expansion margin for both; the mirror chamber support structure includes a bottom rigid support portion and an upper flexible structure, working together to achieve positioning and vibration-resistant and heat-dissipating support. This invention features a simple support structure, good support stability, and no additional force on the mirror surface, effectively meeting engineering needs.

The application provides a light high-precision phased array antenna group array structure based on large aspect ratio carbon tubes, which comprises a phased array antenna unit, an antenna outer frame arranged at two ends of the phased array antenna unit, a longitude-latitude support connected to the back of the phased array antenna unit, an internal carbon tube assembly penetrating through the inside of the phased array antenna unit and an upper layer carbon tube assembly penetrating through the longitude-latitude support, and the antenna outer frame is connected with part of the internal carbon tube assembly and part of the upper layer carbon tube assembly; the inside of the phased array antenna unit is provided with a through hole for the internal carbon tube assembly to penetrate through, and the internal carbon tube assembly and the upper layer carbon tube assembly each comprise at least two carbon tubes, and lock or assist to lock the phased array antenna unit; and the antenna outer frame is connected with a satellite platform. The large aspect ratio carbon tubes penetrate through the antenna unit and are fused together with the antenna unit, so that the compactness of the structure is improved, the antenna unit can be assembled without gap, high-density and high-precision assembly of high-frequency band antennas can be realized, and the application has the advantages of low cost and rapid batch production.

The application discloses an ion beam sputtering deposition method for an integrated circuit interconnection metal layer, and belongs to the technical field of micro-nano manufacturing. In the deposition process of the metal layer, a glancing angle ion beam sputtering (IBS) physical vapor deposition (PVD) mode is adopted, so that high-quality conformal filling of metal films such as molybdenum (Mo) and ruthenium (Ru) in a tens-of-nanometer feature size (CD) and a large aspect ratio (AR) trench structure can be realized, that is, the metal films have excellent hole-filling capacity, can realize 100% sidewall coverage, and can avoid the emergence of adverse modes such as overhang and void. The application introduces the ion beam sputtering technology into the integrated circuit manufacturing process, and provides a new process solution for the deposition and filling of integrated circuit gate metal materials, middle and later interconnection pad liner / barrier / seed layer / conductive metal materials and 3D-DRAM capacitor electrode materials.

The invention discloses a multi-parameter tactile sensing probe based on a micro-nano optical fiber cantilever beam structure. The multi-parameter tactile sensing probe comprises a light source, a micro-nano optical fiber, a flexible film and a detector, the micro-nano optical fiber is a whole formed by sequentially connecting a first unstretched part, a first conical transition area, a waist area, a second conical transition area and a second unstretched part; the micro-nano optical fiber forms a cantilever beam structure, the first conical transition area and the second conical transition area abut against each other to form a cantilever beam with a large aspect ratio, and the waist area is bent into a ring shape to form a tactile sensitive area; the two conical transition areas, the waist area and an annular area formed by bending the waist area are packaged by temperature-sensitive flexible films; the multi-parameter tactile sensor can sense multi-parameter tactile information including pressure, wind speed, vibration and temperature, has the advantages of being compact in structure, high in sensitivity, high in response speed, resistant to electromagnetic interference and the like, and has great application value in the fields of bionic tactile, intelligent robots, biomedical detection, wearable equipment and the like.