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866 results about "Film structure" patented technology

Film structure definition, film structure meaning | English dictionary. film. b a form of entertainment, information, etc., composed of such a sequence of images and shown in a cinema, etc. b to make a film of (a screenplay, event, etc.)

Air-pulse generating device with resonant chamber embedded therein

The air-pulse generating device comprises a film structure, operating at an ultrasonic operating frequency, and a resonant chamber, formed on a side of the film structure. A resonance is formed within the resonance chamber. Due to the resonant chamber, the APG device has a peak on a frequency response of an acoustic property of the APG device at the ultrasonic operating frequency.
Owner:XMEMS LABS INC

Infrared film absorptivity prediction method and system based on machine learning

The invention discloses an infrared film absorptivity prediction method and system based on machine learning, and relates to the technical field of optical film design and performance prediction.The infrared film absorptivity prediction method comprises the following steps that feature data of a to-be-measured film material and incident light are obtained, electromagnetic field distribution and local absorption power density are output, and according to power integration and boundary conditions, an infrared film absorptivity prediction result is obtained; obtaining initial absorptivity distribution; performing modal analysis on the initial absorptivity distribution, constructing a low-dimensional absorptivity response model, and outputting absorptivity response data after dimension reduction; constructing a physical constraint neural network by taking energy conservation and Fresnel boundary conditions as constraints; on the basis of a physical constraint neural network, absorptivity prediction is carried out on the infrared thin film under different conditions, thin film structure data are optimized through a multi-objective optimization algorithm, and an optimal structure parameter combination of the infrared thin film is obtained; according to the invention, through multi-physics field modeling and the physical constraint neural network, the problems of low infrared film absorptivity prediction precision and poor optimization efficiency are solved.
Owner:SHENZHEN ZHONGSHENG FILM MATERIALS CO LTD

Hydrophobic micro-nano flexible film structure and characterization method

The invention discloses a hydrophobic micro-nano flexible thin film structure and a characterization method, relates to the technical field of thin film structure characterization, and aims to solve the problems of poor supporting performance of a flexible thin film and inaccurate standard data acquisition. Different acceleration voltages and currents are set for the coarse thinning stage and the fine thinning stage, fine removal of materials can be achieved, the accuracy of the thinning thickness is guaranteed, the thickness, the surface fluctuation amplitude and the microstructure feature size of a thin film in a measured image are measured with the help of a scale tool, and the measurement accuracy is improved. The morphological characteristics of the hydrophobic micro-nano flexible film can be converted into accurate data, rigid support is provided for the film by utilizing high hardness, high chemical stability and good thermal conductivity of tungsten, the upper side and the lower side of a target area are milled, hole digging is conducted on surrounding materials to form a preliminary sheet contour, then U-shaped milling and back-splashing material cleaning are conducted, and the thin film is obtained. The sample form is effectively controlled, and damage of processing stress to the sample structure is reduced.
Owner:MIGELAB

Gradient frame membrane and separation application thereof

The invention discloses a gradient frame membrane and separation application thereof. An integrated gradient membrane material is constructed in a mode of functional group sharing, metal node sharing or skeleton interpenetration, and target molecule recognition sites are designed by utilizing the advantage that a framework material is easy to modify, so that the separation performance is remarkably improved. The gradient film structure comprises a metal organic-metal organic framework gradient film, a metal organic-covalent organic framework gradient film and a covalent organic-metal organic framework gradient film. The invention introduces a new structure of a metal organic framework-covalent organic framework gradient film and a construction strategy thereof in detail. The preparation method comprises the steps of preparing a bottom layer film structure from bottom to top, then preparing a top layer film structure on the bottom layer film structure, performing post-modification and the like. By designing a specific asymmetric porous structure and adsorption sites, the membrane shows excellent ethylene / ethane, propylene / propane, ion screening and organic matter dehydration separation performance under the dual action of adsorption selection and shape-selective screening.
Owner:DALIAN INSTITUTE OF CHEMICAL PHYSICS CHINESE ACADEMY OF SCIENCES

Fast ground-air transient electromagnetic inversion method based on FiLM-U-net

The invention discloses a fast air-ground transient electromagnetic inversion method based on FiLM-U-net, and belongs to the field of electromagnetic signal data processing, and the method comprises the steps: obtaining geological data and air-ground transient electromagnetic detection data, carrying out the preprocessing, and constructing a data set; dividing a training set, a verification set and a test set; the method comprises the following steps: constructing a FiLM-U-net network model in combination with a FiLM structure and a U-net structure; adopting the training set to select a proper training strategy to train the FiLM-U-net network model, and adopting the test set to evaluate the inversion effect of the model; and the trained FiLM-U-net network model is used to carry out inversion on ground-air transient electromagnetic measured data, transmit-receive positions and ground-air transient electromagnetic response are inputted, and an underground model resistivity value is outputted. According to the invention, the space information can be effectively utilized to carry out efficient and rapid inversion on the ground-air transient electromagnetic signal.
Owner:JILIN UNIVERSITY

Double-trigger programmable degradable PHA (polyhydroxyalkanoate) composition and preparation method thereof

The invention belongs to the field of high polymer materials, and discloses a double-trigger programmable degradable PHA composition and a preparation method thereof. A cured film structure formed by the composition sequentially comprises an outer protective layer, a trigger layer and an inner functional layer from outside to inside, wherein the outer protective layer takes polyhydroxyalkanoate as a base material, a reversible cross-linked network is introduced into the outer protective layer, the trigger layer is provided with humidity and ion double-trigger microcapsules, and the inner functional layer is used for bearing functional auxiliaries. The cured film can maintain low permeability and mechanical stability before application. After application, under the synergistic effect of specific moisture and ions, the trigger layer is activated, so that the cured film is subjected to step-type improvement of moisture permeability in a preset time window, and a through hole is formed. And finally, integral disintegration is realized through physical structure failure. The technology can be applied to the fields of seed coating and the like, the activity of a biological base material can be ensured by adopting a low-temperature process with the temperature lower than 50 DEG C, and unification of stable protection before application and on-demand disintegration after application is achieved.
Owner:DU BAI CHENG NEW MATERIAL TECH (SHANGHAI) CO LTD +2

Method for planting winter wheat in saline-alkali soil

The invention provides a method for planting winter wheat in saline-alkali soil, which belongs to the technical field of wheat planting, and comprises the following steps: S1, rotary tillage and soil preparation: carrying out rotary tillage at the depth of 25-30cm 30-40 days before sowing, doping foreign soil, and applying straw and gypsum; s2, seed treatment: selecting saline-alkaline tolerant wheat seeds, soaking the wheat seeds in a liquid medicine, and soaking the wheat seeds in the liquid medicine; s3, ridging operation: high ridges with the ridge height of 15-20 cm, the ridge surface width of 40-50 cm and the ridge spacing of 25-30 cm are constructed; s4, sowing in line on ridges: sowing the wheat seeds treated in the step S2 on the ridges in line, wherein the sowing depth is 2-3cm; s5, film mulching operation, wherein the ridges are covered with mulching films of a double-film structure, and the film edges of the mulching films are sealed with humic acid slurry; s6, field management: uncovering the film and supplementing seedlings in the seedling stage, and drip irrigation and topdressing under the film in the growth stage. According to the saline-alkali soil winter wheat planting method provided by the invention, the wheat emergence rate can be remarkably increased by constructing a low-salt micro-domain environment.
Owner:SHIJIAZHUANG INST OF AGRI MODERNIZATION CHINESE ACAD OF SCI

Method and equipment for processing edge area in ink-jet printing of film layer structure

The invention discloses a processing method and device for an edge area in film layer structure ink-jet printing, and the processing method comprises the steps: determining the edge area of a to-be-printed pattern on a substrate bitmap; the pattern to be printed comprises an edge area and a non-edge area; the edge area is divided into a plurality of edge subareas so that an ink-jet printer can conveniently conduct film layer structure printing on the edge subareas of the to-be-printed pattern; wherein in the direction from the edge area to the non-edge area, the sizes of the multiple edge subareas are sequentially decreased progressively; one size of the edge subarea corresponds to one ink drop extraction rate, the size of the edge subarea is the width of the edge subarea, and the ink drop extraction rate of the edge subarea is the proportion of ink drop points which are prohibited from printing to the total ink drop points in the edge subarea. The edge area of the film layer structure can be flat, and the film thickness is uniform.
Owner:GUANGDONG NATIONAL INNOVATION TECHNOLOGY OPTOELECTRONICS EQUIPMENT CO LTD +1

Perpendicular anisotropic magnetic memory based on rare earth doped antiferromagnetic

The invention relates to a perpendicular anisotropic magnetic memory based on rare earth doped antiferromagnetic, which comprises a thin film structure, and the thin film structure sequentially comprises a buffer layer, a heavy metal layer, a perpendicular magnetic anisotropic layer, a rare earth doped antiferromagnetic layer and a protective layer from bottom to top, according to the invention, the magnetic texture is changed by doping rare earth elements into the collinear antiferromagnetic to break the symmetry of the system, and the spin-orbit torque is utilized to drive the magnetic state of the memory device with perpendicular magnetic anisotropy to overturn only by means of current under the condition of no external field assistance. The method provides a new implementation path for a low-power-consumption and high-density spin storage technology, has a good application prospect, and is expected to promote actual development and application of novel magnetic storage devices in the future.
Owner:HANGZHOU DIANZI UNIV

Moistureproof multifunctional air bubble film packaging bag

The invention relates to a damp-proof multifunctional air bubble film packaging bag which comprises a first air bubble film and a second air bubble film which are oppositely arranged, the first air bubble film and the second air bubble film comprise the first air bubble film and the second air bubble film which are oppositely arranged, and the three edges of the first air bubble film and the three edges of the second air bubble film are connected with edge sealing layers in a sealed mode. A top sealing structure is arranged on the outer surfaces of the upper ends of the first air bubble film and the second air bubble film, a fixing strip is fixedly connected to the inner surface of the front end of the top sealing structure, and the top sealing structure comprises a second sealing strip and a first sealing strip. The packaging bag has the beneficial effects that many defects of a traditional packaging bag in the aspects of moisture resistance and sealing performance are effectively overcome, the packaging bag has excellent physical protection performance and functional characteristics through the design of the six-layer functional composite film structure, the durability of the packaging bag is greatly improved through the arrangement of the anti-abrasion layer, and the effect that damage caused by friction in the transportation process is avoided.
Owner:SHANGHAI APPLE ADDITIVE CO LTD

Bulk acoustic wave resonator with double-layer piezoelectric film structure, preparation method and filter

The invention relates to the field of microelectronic devices, in particular to a bulk acoustic wave resonator with a double-layer piezoelectric film structure, a preparation method and a filter, the bulk acoustic wave resonator comprises a cap wafer, and a dry film, a passivation layer, a silicon oxide layer, a high-resistance silicon wafer and RDL metal are sequentially arranged on the cap wafer; the dry film and the cap wafer form a dry film cavity, the passivation layer located above the dry film cavity extends into the dry film cavity, and a top electrode, a first piezoelectric film, a middle electrode, a second piezoelectric film and a bottom electrode are sequentially arranged on the passivation layer; the top electrode and the bottom electrode are used as first ports of the resonator; and the middle electrode is a second port. According to the resonator, the excitation mode of the resonator is changed through cooperation of the two layers of piezoelectric films with the same polarization direction and the intermediate electrode, a high-order resonance mode is jointly excited, meanwhile, a high electromechanical coupling coefficient is kept, and a wide fractional bandwidth is achieved at high frequency through the relatively thick piezoelectric films; the problems that a high-frequency resonator is weak in power bearing capacity, narrow in bandwidth, low in quality factor and poor in stability are solved.
Owner:XI AN JIAOTONG UNIV

Large language model data set construction and model training method for optical thin film design

The invention discloses a big language model data set construction and model training method for optical thin film design, which comprises the following steps of: S1, generating a specific data set based on a real production condition based on a design layered structure of an optical thin film structure and generated spectral data; s2, training a large film design privatization model matched with an actual production process by adopting the training and fine tuning data set of a large language model; s3, based on the characteristics of large language model input, dividing a thin film design privatization large model training scheme into global design optimization and local design optimization; and S4, carrying out model training on global optimization and local optimization by adopting a mutual combination mode. According to the method, the large film design privatization model matched with the actual production process is trained, accurate association of optical film production process parameters and actual measurement spectral characteristics is achieved, and the practical problem that an existing data structure cannot comprehensively represent real film structure information is solved.
Owner:SHANGHAI OPLINK COMM CO LTD

Water-fertilizer integrated double-film efficient cultivation method for pepper

The invention discloses a pepper water-fertilizer integrated double-film efficient cultivation method, which belongs to the technical field of pepper planting, and is realized through four steps of soil preparation and ridging, sowing, seedling raising and transplanting, double-layer functional mulching film laying and furrow irrigation. Through staggered arrangement design of the vent holes and accurate arrangement of the vent holes in a specific radius range around a pepper transplanting hole, the uniformity of oxygen supply of a root zone is effectively guaranteed, root rot and diseases caused by local oxygen deficit are prevented, and high-quality development of pepper root systems is realized by combining a temperature and humidity coordinated regulation function of a double-film structure; the efficient absorption of nutrient substances is promoted. Compared with traditional film mulching or non-film mulching furrow irrigation treatment, the double-film furrow irrigation system has the advantages that the irrigation amount of each time is only 1.023 m < 3 > / hm < 2 > under the same cultivation condition, the water saving amplitude reaches 65% or above, and the water resource utilization efficiency is remarkably improved.
Owner:GANSU RES INST OF AGRI ENG TECH

Covering layer, film layer structure and organic light-emitting device

The invention discloses a covering layer, a film layer structure and an organic light-emitting device, and relates to the technical field of organic light-emitting materials, the covering layer comprises a compound shown as a formula I and / or a formula II: # imgabs0 # imgabs1 #, wherein Ar1 and Ar2 are the same or different and are independently selected from substituted or unsubstituted C6-C24 aryl groups and substituted or unsubstituted C3-C24 heteroaryl groups; the Ak1 and the Ak2 are the same or different; the alkyl groups are independently selected from the group consisting of substituted or unsubstituted C1-C30 alkyl groups, substituted or unsubstituted C1-C30 heteroalkyl groups, substituted or unsubstituted C3-C30 cycloalkyl groups, substituted or unsubstituted C2-C30 heterocycloalkyl groups, substituted or unsubstituted C3-C30 cycloalkyl carbonyl groups, substituted or unsubstituted C1-C30 alkylamino groups, substituted or unsubstituted C1-C30 heteroalkylamino groups, and substituted or unsubstituted C3-C30 cycloalkyl amino groups; and a substituted or unsubstituted C2-C30 heterocyclic alkyl amino group. The compound shown in the formula I and / or the formula II can reduce the refractive index of the covering layer, improve the stripping adhesive force between the covering layer and the cathode and improve the glass transition temperature of the covering layer.
Owner:SHANGHAI QUADRISTAR ELECTRONIC TECH CO LTD

A photocatalytic negative oxygen ion near-field purification glasses component and its preparation method

PendingCN122362698AComposite filmOxygen ions
This invention discloses a photocatalytic negative oxygen ion near-field purification eyeglass component and its preparation method. The component includes an eyeglass substrate (lens or frame). From the inside out, the outer surface of the substrate is sequentially provided with a functional film layer, a plasma activation layer, and an outermost composite film layer of nitrogen-doped anatase titanium dioxide supported on a Pt-Au-Ag-Pd quaternary noble metal. This film is responsive to the entire visible light band from 400nm to 700nm and stably generates ≥1000 negative oxygen ions / cm³ within a 30cm near-field breathing zone of the wearer's mouth and nose under normal lighting conditions. It also achieves antibacterial and bacteriostatic effects, degradation of harmful gases, surface self-cleaning, and anti-fogging functions. This invention optimizes the film structure, allowing the photocatalyst to directly contact air and visible light, maximizing catalytic efficiency. It is also compatible with lenses and frames, integrating multiple effects such as eye protection, purification, antibacterial properties, and anti-fogging. The process is universal and mass-producible.
Owner:RUIYANG MEDICAL TECHNOLOGY (DANYANG) CO LTD

High-storage-ratio folding method for large conical film structure

The invention discloses a high-storage-ratio folding method for a large conical film structure, and belongs to the technical field of space debris removal and satellite light shields. The problems that an existing plane deorbit sail is poor in attitude stability and low in deorbit efficiency are solved. Comprising the following steps: S1, drawing equidistant circumferential folding lines on a conical film structure, wherein the circumferential folding lines comprise a circumferential ridge line and a circumferential valley line; s2, circumferential folding is carried out, axial compression is carried out along the axis of the cone, and then circumferential contraction is carried out; and S3, folding from a cone to a cylinder. The three-dimensional conical film sail can be folded into the three-dimensional conical film sail which is high in posture stability, relatively high in unfolding reliability and capable of correcting the posture, and the folding efficiency is high.
Owner:HARBIN INST OF TECH +1

TiNbCrZr high-entropy film and preparation method and application thereof

The invention provides a TiNbCrZr high-entropy film and a preparation method and application thereof.According to the preparation method, a high-power pulse magnetron sputtering technology is adopted, Ti blocks, Nb blocks, Cr blocks and Zr blocks with the specific mass ratio and the purity larger than or equal to 99.9% are periodically arranged to form a composite target material, and technological parameters such as the target-substrate distance of 50-70 mm, the working pressure of 0.3-0.5 Pa, the pulse width of 100 microseconds and the trigger voltage of 700-900 V are matched for regulation and control, so that the TiNbCrZr high-entropy film is obtained. The ionization rate of the target material can be improved to solve the problem of low ionization rate, and the structure and components of the thin film can be optimized by adjusting the alloy proportion of the target material and the peak power of the HPPMS; compared with a traditional magnetron sputtering product, the TiNbCrZr high-entropy film prepared through the method is higher in binding force, more compact in structure and more excellent in quality, a high-quality high-entropy coating with high wear resistance can be obtained finally, and precise optimization of film components and performance is achieved.
Owner:JINGCHU UNIV OF TECH

Packaging structure and preparation method thereof

The invention relates to a packaging structure and a preparation method thereof. The method comprises the following steps: providing a carrier plate; a dry film structure is formed on one side of the carrier plate, the dry film structure comprises a dry film layer and a conductive column, through holes are formed in the dry film layer, and at least part of the through holes are filled with the conductive column; a conductive structure is provided, the conductive structure comprises a main body part and protruding parts arranged on one side of the main body part, and the protruding parts are in one-to-one correspondence with the through holes; the conductive structure and the dry film structure are combined in a hot pressing mode, the protruding parts are embedded into the through holes to form solid-phase diffusion connection with the conductive columns, and the main body part is attached to the side, away from the carrier plate, of the dry film layer; and etching the main body part from one side, far away from the dry film layer, of the main body part to obtain a rewiring layer. According to the packaging structure and the preparation method thereof, the signal transmission efficiency and the electrical performance are improved, the material waste is reduced, the production cost is reduced, the packaging requirement of higher integration level can be met, the application scene is expanded, and the graphic precision and the product yield are greatly improved.
Owner:JCET SEMICON (SHAOXING) CO LTD

Solar cell cutting edge passivation film layer structure and preparation method and application thereof

The invention provides a solar cell cutting edge passive film layer structure and a preparation method and application thereof, and relates to the technical field of solar cells, and the solar cell cutting edge passive film layer structure comprises a tunneling layer, a polycrystalline silicon layer and an aluminum oxide film layer which are sequentially laminated on the cutting edge of a cut cell. According to the solar cell cutting edge passivation film layer structure, the composite film layer structure is adopted, the cutting edge passivation capability is improved, the SiO2 + polycrystalline silicon layer is adopted as the bottom layer structure, the Al2O3 film layer is adopted as the outer layer, the passivation capability of the edge passivation film layer is improved, and the module power is improved.
Owner:TIANJIN ZHONGHUAN SEMICON CO LTD

Passivating film layer structure, preparation method thereof and application of passivating film layer structure in preparation of solar cell

The invention provides a passive film layer structure, a preparation method thereof and an application of the passive film layer structure in preparation of a solar cell, and relates to the technical field of solar cells, the passive film layer structure comprises a tunneling oxide layer, an aluminum oxide layer, a polycrystalline silicon layer and a doped polycrystalline silicon layer which are sequentially stacked on the back surface of a silicon substrate. The aluminum oxide layer is introduced between the traditional tunneling oxide layer and the doped polycrystalline silicon layer, and the polycrystalline silicon layer is additionally arranged below the doped polycrystalline silicon layer, so that a passivation contact structure with a multi-layer synergistic effect is constructed, the passivation performance is remarkably improved, boron is effectively prevented from being diffused to the tunneling oxide layer, the interface stability is improved, and the service life of the device is prolonged. The technical problems that in the prior art, the hole transmission capacity is poor, the passivation effect is poor, the interface is unstable, and the boron diffusion influence is large are solved.
Owner:TIANJIN ZHONGHUAN SEMICON CO LTD

Circular knife double-asynchronous collaborative die cutting process and equipment for multi-glue-layer blue film structure

The invention relates to the technical field of machining, and discloses a circular knife double-asynchronous collaborative die cutting process and equipment for a multi-glue-layer blue film structure, and the process comprises the following steps: obtaining material parameters and pattern data, and carrying out pretreatment and real-time visual alignment on the multi-glue-layer blue film structure; and the central control module operates an algorithm according to the data, generates and drives the first circular cutter die cutting unit and the second circular cutter die cutting unit to perform asynchronous collaborative die cutting, and peels off waste materials. The system comprises a material conveying module, a visual alignment module, a first circular cutter die cutting unit, a second circular cutter die cutting unit, a central control module and a waste stripping module. By the adoption of the scheme, die cutting alignment precision and efficiency are improved, material loss and production cost are reduced, traditional die cutting errors and material deformation are avoided, cutting quality is optimized, and a technical basis is provided for lean production of electronic product parts.
Owner:SHENZHEN TENGXIN PRECISION ADHESIVE PROD CO LTD

Center arched and wrinkled corrugated LNG (Liquefied Natural Gas) film enclosure system structure and assembly method

The invention discloses a center arch-shaped and wrinkled corrugated LNG film enclosure system structure and an assembly method.The center arch-shaped and wrinkled corrugated LNG film enclosure system structure comprises a straight plate, fixing holes used for installation are formed in the corner ends of the straight plate, long corrugations are formed in the straight plate through one-time stamping, and the long corrugations are arranged on the straight plate. The long corrugations are perpendicular to the plate edge of the straight plate; corrugated wrinkles are formed on the long corrugations through secondary stamping, central arch structures are formed on the flat and straight plates through secondary stamping, and every two adjacent flat and straight plates are welded and connected at the edges of the long corrugation structures perpendicular to the plate edges to form a complete enclosure system main shielding layer. The long corrugations of every two adjacent straight plates are in butt joint to form a plurality of sets of closed and through corrugated film structures, and the long corrugations of every two adjacent straight plates are in butt joint to form a plurality of sets of center arch nodes of the film enclosure system structure. The device has the advantages of being good in economy, simple in structure and convenient to install, and the stability of the structure is remarkably improved.
Owner:TIANJIN UNIV

Ultra-wideband three-dimensional metamaterial wave absorber with large angular domain stability

The invention discloses an ultra-wideband three-dimensional metamaterial wave absorber with large angular domain stability, which comprises M * N wave absorber units, and is characterized in that M is more than or equal to 10 rows, N is more than or equal to 10 columns, and each wave absorber unit sequentially comprises an upper-layer three-dimensional vertical resistive film patch cylindrical structure, a bottom square resistive film structure or a metal bottom plate II from top to bottom, a lower-layer three-dimensional vertical resistive film patch cylindrical structure and a lower-layer square resistive film patch cylindrical structure from top to bottom. And the cylindrical structure of the upper-layer three-dimensional vertical resistive film patch is adhered to the bottom square resistive film structure through optical cement or adhered to the metal bottom plate II. According to the invention, the effects of ultra-wide absorption bandwidth, large angular domain stability and polarization insensitivity can be realized.
Owner:CHINA UNIV OF MINING & TECH

Reflecting mirror applied to high-power laser

The utility model discloses a reflecting mirror applied to high-power laser, which comprises a base material structure layer, a reflecting dielectric film structure layer is arranged on the reflecting surface of the base material structure layer in a film coating mode, and the reflecting dielectric film structure layer is composed of 46 layers of high-refractive-index film structures and 46 layers of low-refractive-index film structures which are alternately overlapped from inside to outside. The reflector applied to the high-power laser can obtain high reflectivity in the application scene of the high-power laser under the working wave band of 915 + / -10nm, 976 + / -10nm or 1064 + / -10nm. Meanwhile, the dielectric film of the reflector is extremely low in laser absorptivity, and energy loss can be effectively reduced.
Owner:SHANGHAI GAONENG YU PLATING TECH CO LTD

Cutter head and skin treatment device

The utility model discloses a cutting head and a skin treatment device, the cutting head comprises a shell, the shell is provided with a mounting cavity and a sound wave outlet, and the sound wave outlet penetrates through the side wall of the shell; the transducer assembly is arranged in the mounting cavity, the transducer assembly is arranged corresponding to the sound wave outlet, and the ultrasonic emission direction of the transducer assembly faces the sound wave outlet; the packaging film structure is arranged on the shell, and the packaging film structure comprises a sound transmission film, an insulating supporting sheet and a touch flexible circuit board which are arranged in a stacked mode; the sound transmission film covers the sound wave outlet in a sealing mode, and the insulation supporting piece and the flexible circuit board are located between the sound transmission film and the shell. According to the technical scheme, the safety of the tool bit can be improved.
Owner:HANGZHOU JINMO TECH CO LTD

Laser repair method and laser repair device

A laser repair method includes a repair process of performing repair work by setting a laser radiation range for a defect part in a multi-layer film substrate and irradiating the defect part with a laser beam under set laser working conditions. In the repair process, spectrum data of the defect part is acquired, and the laser working conditions of the laser beam, with which the defect part is to be irradiated, are set using a neural network after learning on the basis of the spectrum data, and the neural network has undergone machine learning using, as learning data, measurement data including multi-layer film structure data, spectrum data of each multi-layer film structure, and laser working experimental data of each multi-layer film structure.
Owner:V TECH CO LTD

Flexible capacitive pressure sensor and preparation method thereof

The invention discloses a flexible capacitive pressure sensor and a preparation method, and relates to the technical field of flexible capacitive pressure sensors.The flexible capacitive pressure sensor comprises a shell, a second binding post arranged at one end of the shell, a shell cover arranged at the other end of the shell and a first binding post arranged on the shell cover, an upper packaging layer is arranged in the shell, an upper electrode layer is arranged on one side of the upper packaging layer, and a lower electrode layer is arranged on the other side of the upper packaging layer; a middle dielectric layer is arranged on one side of the upper electrode layer, a lower electrode layer is arranged on one side of the middle dielectric layer, and a lower packaging layer is arranged on one side of the lower electrode layer; conductive film structures are arranged between the lower electrode layer and the middle dielectric layer and between the upper electrode layer and the middle dielectric layer; a sealing assembly is arranged in the shell cover; an extrusion assembly is further arranged in the shell cover; by using the sealing assembly, the sealing performance between the shell and the shell cover is improved, external moisture and dust are prevented from entering the shell, the accuracy of capacitance measurement is improved, and the service life of the flexible capacitive pressure sensor is further prolonged.
Owner:HEFEI UNIV OF TECH

Embedded millimeter wave radar sensor

The invention relates to the technical field of machinery, and discloses an embedded millimeter-wave radar sensor, which comprises a millimeter-wave radar sensor provided with a shell in sealing fit through threaded connection and an electronic component arranged in the shell; the embedded air pressure balancer is embedded on a shell of the millimeter-wave radar sensor in a sealing manner and is provided with an air path for communicating an inner cavity of the millimeter-wave radar sensor with the outside so as to facilitate self-adjustment of air pressure in the millimeter-wave radar sensor, and at least two millimeter-wave radar breathable films are arranged in the air path and are communicated with the millimeter-wave radar sensor through the air path. The millimeter wave radar breathable films are connected in parallel in an air path, and the embedded air pressure balancer further comprises a regulator. Compared with a single and irreplaceable breathable film structure design in the prior art, the embedded air pressure balancer is arranged, so that simple and convenient breathable film switching can be realized.
Owner:DEYI (HANGZHOU) ENVIRONMENTAL TECH CO LTD

High-gradient beam combiner film and design method thereof

The invention belongs to the field of lasers, and provides a high-gradient beam combiner film and a design method thereof.The high-gradient beam combiner film comprises an optical substrate and a multi-layer dielectric film structure, the multi-layer dielectric film structure is formed by periodically and alternately stacking high-refractive-index film layers and low-refractive-index film layers, and asymmetric optical thickness ratio design is adopted; the optical thickness coefficient of the high-refractive-index film layer is obviously larger than that of the low-refractive-index film layer, and film layer configuration with the high-refractive-index dominant interference effect is formed. Compared with a traditional symmetrical structure, the gradient is remarkably improved and passband oscillation is inhibited under the same number of film layers, for example, extremely narrow spectrum gradient of several nanometers to more than ten nanometers between a reflection band and a transmission band can be achieved, and the advantages of asymmetric design are verified through the design.
Owner:TIANJIN YAGUANG TECH CO LTD

Frame supporting type air costal membrane structure system

A frame supporting type air rib membrane structure system comprises a frame supporting structure, an air rib structure and a membrane structure. The frame supporting structure comprises a supporting unit; the supporting units are arranged at intervals in the longitudinal direction. The supporting unit comprises a stand column and a top support. The air rib structure is mounted on the outer side of the frame supporting structure and is formed by splicing a plurality of air rib type membrane structure units; each air rib type membrane structure unit comprises an air rib and a connecting pipe; the air ribs are arranged in parallel at intervals, and one group of air ribs are horizontally arranged; the group of air ribs are communicated with one another through connecting pipes to form one or more independent inflation loops; pressure sensors are arranged on the surfaces of the air ribs; and the membrane structure covers the outside of the air rib structure and is detachably connected with the air rib structure. The technical problems that a traditional gas film structure is small in application range, insufficient in stability, prone to being large in film surface deformation and unstable in gas rib are solved, and the technical problems that a traditional gas rib type film structure is poor in adjustment flexibility, large in operation difficulty and high in cost are further solved.
Owner:CHINA CONSTR COMM ENG GRP UNITED