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103results about How to "Solve loss" patented technology

K-band broadband dual circularly polarized antenna applied to satellite internet

The invention provides a K-band broadband dual circularly polarized antenna applied to the satellite internet, and belongs to the field of circularly polarized antennae, the K-band broadband dual circularly polarized antenna comprises a radiation unit, a first dielectric layer, a metal ground layer, a bonding layer, a second dielectric layer and a feed network which are stacked from top to bottom, the radiation unit comprises two first radiation patches and two second radiation patches, the first radiation patch is provided with two long rectangular grooves which are vertically intersected, the second radiation patch is provided with two short rectangular grooves which are vertically not intersected, the first radiation patch and the second radiation patch are respectively connected to the metal ground layer through metal columns, and the metal ground layer is provided with a first coupling gap and a second coupling gap. A first rectangular groove, a second rectangular groove, a third rectangular groove and a fourth rectangular groove are formed in the metal ground layer, and the feeder network comprises a first microstrip feeder and a second microstrip feeder; the antenna structure is low in profile, wide impedance bandwidth can be achieved, and the two feed ports can work in the same frequency range.
Owner:ANHUI UNIV

Integrated cooling and steam supply system

The invention belongs to the field of heat pumps, and provides an integrated cooling and steam supply system which comprises a waste heat drive type absorption refrigerator and a first direct generation type high-temperature steam heat pump which are in bidirectional connection. The waste heat drive type absorption refrigerator comprises a first generator, a first evaporator, an absorber and a first condenser. The first direct generation type high-temperature steam heat pump comprises a first compressor, a throttling mechanism, a steam generator and a water vapor compressor. By absorbing waste heat in the technological process, cooling of an input medium and preparation of high-pressure steam are achieved, recycling of heat is completed, emission of pollutants is reduced, and the energy utilization efficiency is improved; through the first direct generation type high-temperature steam heat pump, loss caused by a conventional flash evaporation process is avoided, and the overall efficiency of the system is improved; the absorber and the first condenser serve as evaporators of the high-temperature steam heat pump, the intermediate circulating water heat exchange process is avoided, and the heat exchange efficiency is improved.
Owner:TONGFANG ENERGY SAVING ENG TECH +1

Vehicle air suspension system and vehicle

The invention discloses a vehicle air suspension system and a vehicle, the vehicle comprises a power battery, and the system comprises at least one air suspension device; the air compressor is connected with at least one air suspension device; the vehicle-mounted charger is connected with the power battery and the air compressor and used for converting direct current provided by the power battery into alternating current to supply power to the air compressor in the first working mode, so that the air compressor outputs compressed air to drive at least one air suspension device. According to the suspension system, the power battery is adopted for high-voltage power supply, the vehicle-mounted charger is reused for supplying power to the air compressor to drive the multiple air suspension devices, driving current can be reduced, loss is reduced, heating is not prone to occurring, the diameter of a distribution wire harness can be reduced, one set of high-voltage control driver can be reduced, and cost is reduced. The cost and the size can be remarkably reduced, and the supporting and damping effects of the vehicle can be improved.
Owner:ZHEJIANG GEELY HLDG GRP CO LTD +1

Distributed energy storage locating and sizing method and system based on teaching optimization algorithm

The invention discloses a distributed energy storage locating and sizing method and system based on a teaching optimization algorithm, and relates to the technical field of distributed energy storage system optimization, and the method comprises the steps: building a radial power distribution network model according to the deployment condition of each clean energy power generation power supply in a power distribution network, the method comprises the following steps: establishing a distributed energy storage system addressing and sizing optimization model by taking minimization of peak load fluctuation and network loss of a radial power distribution network model as a target, and solving the distributed energy storage system addressing and sizing optimization model based on a teaching optimization algorithm. And obtaining the deployment address of each energy storage device of the distributed energy storage system in the power distribution network and the deployment capacity of each energy storage device when the peak load fluctuation and the network loss of the radial power distribution network model are minimum. According to the invention, more sufficient reference can be provided for power distribution network planning in reality, and the problems of output intermittency and volatility of the distributed power supply and electric energy loss of the power distribution network can be solved synchronously through energy storage configuration.
Owner:SUZHOU POWER SUPPLY COMPANY OF STATE GRID ANHUI PROVINCE ELECTRIC POWER

Low-voltage charge pump circuit and control method thereof

The invention discloses a low-voltage charge pump circuit and a control method thereof, and relates to the technical field of power management. Comprising an inverter INV, a charge pump main body structure and an output capacitor COUT. The closed state of a first N-type MOS tube MN1 and a first parasitic diode D1 thereof, the closed state of a second N-type MOS tube MN2 and a third parasitic diode D3 thereof, the closed state of a first P-type MOS tube MP1 and a second parasitic diode D2 thereof, and the closed state of a second P-type MOS tube MP2 and a fourth parasitic diode D4 thereof are controlled through the input voltage of an input port IN and the output voltage of a phase inverter INV, so that the voltage at an X node and the voltage at a Y node are changed. And the output voltage of the output port OUT is charged through the charges stored in the X node and the Y node. The charge pump is simple in structure, can realize self-starting, and can be widely applied to power supply management circuits.
Owner:XIAN AEROSPACE MINXIN TECH CO LTD

Novel preparation method of semiconductor composite substrate

The invention provides a novel preparation method of a semiconductor composite substrate, relates to the technical field of semiconductor chips, and aims to solve the problem of relatively large material loss in a substrate preparation process. The preparation method of the novel semiconductor composite substrate comprises the following steps: providing a supporting layer and a donor layer, wherein the supporting layer comprises a D-level silicon carbide substrate; the donor layer comprises a first surface and a second surface which are oppositely arranged, and the supporting layer is bonded to the first surface of the donor layer; performing laser irradiation on one side, far away from the donor layer, of the supporting layer, forming a modified layer at a position, having a first preset thickness from the first surface, in the donor layer, forming a first sub-layer on a part, from the modified layer to the first surface, of the donor layer, and forming a second sub-layer on a part, from the modified layer to the second surface, of the donor layer; stripping the second sub-layer and the first sub-layer from the modified layer; and polishing the surface, away from the supporting layer, of the first sub-layer to obtain the semiconductor composite substrate. The semiconductor composite substrate is used for preparing electronic equipment.
Owner:深圳平湖实验室

A portable low-temperature plasma device based on a laval nozzle structure and application thereof

PendingCN122075905ASolve the problem of ineffective treatment of skin diseasesgood killing effectOrganic active ingredientsAntimycoticsPlasma jetPlasma technology
This invention discloses a portable low-temperature plasma device based on a Laval nozzle structure and its application, belonging to the field of plasma technology application technology. Specifically, it includes (1) the construction of the device; and (2) the use of the device for fungal eradication treatment and transdermal drug delivery enhancement treatment. The beneficial effects achieved by this invention are as follows: This invention is the first to apply the Laval nozzle structure to a portable low-temperature plasma device. The results show that the device can effectively improve the plasma jet performance and active particle content, significantly improve the treatment effect of fungal infections of the skin and nails and the transdermal drug penetration efficiency, while solving the problems of large size, reliance on external power supply, and complex operation of traditional plasma devices. Therefore, using this invention for the treatment of fungal infections of the skin and nails and for enhanced transdermal drug delivery has advantages such as ease of operation, high safety, non-invasiveness, and high efficiency, and thus has potential application prospects in the field of skin disease treatment and transdermal drug delivery.
Owner:HEFEI INSTITUTE OF PHYSICAL SCIENCE CHINESE ACADEMY OF SCIENCES

Floor sweeping vehicle fluted disc meshing transmission front wheel with nitrogen damping function

The invention discloses a road sweeper fluted disc meshing transmission front wheel with a nitrogen damping function, and relates to the technical field of vehicle engineering, the road sweeper fluted disc meshing transmission front wheel comprises a front fork weldment, deep groove ball bearings III are mounted on the two sides of the front fork weldment, and crank weldments are connected to the outer sides of the deep groove ball bearings III in a sleeving manner; nitrogen buffer shock-proof modules are installed at the bottom of the front fork weldment and the top of the crank weldment and used for reducing shock of the sweeper in the running process. The nitrogen buffer shock-proof module comprises spring seats installed at the bottom of the front fork weldment and the top of the crank weldment, and a nitrogen shock absorber is installed between the lower set of spring seats and the upper set of spring seats. Through the nitrogen buffering and shock-absorbing module, the problems that the vehicle is difficult to control and the sweeping operation quality is affected due to bumpy road surfaces can be solved, and the continuity and high efficiency of sweeping operation are guaranteed.
Owner:NANTONG MINGNUO ELECTRIC TECH CO LTD

A large-tonnage vibration exciter

The invention discloses a large-tonnage vibrator, comprising a housing, a rotating shaft, an eccentric gear, a driving gear and a lubricating oil circulation system, wherein at least one set of bearing seats is arranged on the housing, and the two ends of the rotating shaft are arranged on the bearing seats through bearings respectively, and the eccentric gear and the driving gear are connected to the rotating shaft respectively, and the eccentric gear and the driving gear are meshed; the eccentric gear is a split eccentric wheel, and the lubricating oil circulation system comprises an oil spray hole, an oil return hole, an oil suction pipe, an oil outlet pipe, an oil baffle plate and a gear pump arranged on the housing, and the gear pump is used to provide power for the lubricating oil circulation system, and the two ends of the oil suction pipe are respectively connected with the oil return hole and the gear pump, and the two ends of the oil outlet pipe are respectively connected with the oil spray hole and the gear pump, and the oil spray hole corresponds to the bearing one by one, and the oil baffle plate is arranged below the eccentric gear and the driving gear, and an oil storage space is formed between the oil baffle plate and the bottom plate of the housing, and the bottom plate is provided with an oil return hole. The invention has the technical effects of reducing manufacturing cost, facilitating maintenance and replacement, and improving service life.
Owner:LOUDI JINHUI MASCH CO LTD

A wine storage tank for wine production

This utility model discloses a wine storage tank for wine production, comprising: a stainless steel seal, including a fixed layer plate fixedly connected to the inner wall of the storage tank, a limiting shaft fixedly sleeved inside the fixed layer plate, a sealing cover plate movably sleeved on the outer wall of the limiting shaft, an internal gear ring fixedly connected to the top of the sealing cover plate, and a gear meshing on the inner wall of the internal gear ring. By setting a double-layer structure of a stainless steel top cover and a clay top cover at the top of the storage tank, the stainless steel top cover provides strong sealing, blocking the exchange of gases between the inside and outside when absolute sealing is required, thus preventing oxidation of the wine and external contamination. The clay top cover, relying on the microporous characteristics of its material, allows for natural ventilation when the wine needs to be breathable for aging, without the need to fully open the lid. Simultaneously, the double-layer design allows for flexible switching between usage scenarios, and individual opening is convenient and labor-saving for cleaning and maintenance, effectively solving the problems of traditional wine storage tanks where sealing and ventilation requirements are difficult to balance, and where opening the lid easily leads to wine loss and contamination.
Owner:HUNAN CONVINCE TECHNOLOGY CO LTD

Double-permanent-magnet speed regulation all-in-one machine and operation method

The invention relates to the technical field of permanent magnet motors, in particular to a double-permanent-magnet speed regulation all-in-one machine and an operation method. A double-permanent-magnet speed regulation all-in-one machine comprises a machine base provided with a containing space; the motor winding stator comprises a secondary winding and a working winding, the secondary winding is suitable for being connected with a four-quadrant frequency converter line, and the working winding is connected with a power grid line through a first phase detection module and a second phase detection module; the permanent magnet planetary rotor set comprises an outer permanent magnet set, a middle connecting sleeve and an inner permanent magnet set which are sequentially arranged in a sleeving mode from outside to inside, the motor winding stator is arranged on the periphery of the outer permanent magnet set in a sleeving mode, and the outer permanent magnet set and the motor winding stator form an outer permanent magnet motor set; the inner winding rotor, the inner permanent magnet group and the inner winding rotor form an inner permanent magnet generator set; and an output shaft. The invention provides a double-permanent-magnet speed regulation all-in-one machine and an operation method, and aims to solve the problem of loss of a transformer due to the fact that a power generator directly uploads energy to a power grid after generating power and then the power grid drives a motor to rotate.
Owner:JIANGSU MAGNET VALLEY TECH

Filtering device for printing ink manufacturing

The utility model discloses a filtering device for printing ink manufacturing, and belongs to the technical field of filtering devices. The device comprises a filter box and a scraping mechanism, a driving part is arranged in the middle of the bottom of the filter box, a protective shell is arranged outside the driving part, the scraping mechanism comprises a mounting sleeve, the mounting sleeve is arranged at the output end of the driving part, two symmetrical connecting rods are arranged outside the mounting sleeve, one end of each connecting rod is provided with a third scraping strip, and the other end of each connecting rod is provided with a second scraping strip. A fourth scraping strip is arranged at the bottom end of the third scraping strip, and first scraping strips are arranged at the bottoms of the two connecting rods correspondingly. The outer wall of the protective shell and the inner wall of the filter box are synchronously scraped through the first scraping strip and the third scraping strip respectively, printing ink residues are minimized, raw material waste is reduced, the second scraping strip and the fourth scraping strip which are obliquely arranged are tightly attached to the bottom face of the filter box, dead corner residues which are difficult to treat through a traditional device are effectively removed, and the use effect is good. The problem that raw materials are consumed due to the fact that filtered ink is easily attached to the inner wall and the bottom of equipment and is difficult to scrape thoroughly is solved.
Owner:GANZHOU BANGCHEN COLOR SPRAY TECH CO LTD

Codec memory reference method, apparatus and device, and computer program product

The invention relates to a codec memory reference method and device, electronic equipment and a computer program product, and belongs to the technical field of computers. The method comprises: in a codec, obtaining a frame memory of a coding and decoding frame according to image pixel information of the coding and decoding frame, the frame memory in the codec having the same data structure as a frame memory in FFmpeg; and quoting a frame memory in the codec through the FFmpeg, and outputting an output frame corresponding to the coding and decoding frame. In the encoding and decoding process, the FFmpeg directly references the frame memory in the codec and outputs the output frame corresponding to the encoding and decoding frame, so that the resource consumption of a CPU (Central Processing Unit) can be reduced, and the energy consumption of the system is reduced while the encoding and decoding processing speed is improved.
Owner:BEIJING DAJIA INTERNET INFORMATION TECH CO LTD

Control method and device of air conditioning unit and computer readable storage medium

The invention provides a control method and device of an air conditioning unit and a computer readable storage medium. The method comprises the steps that under the condition that a shutdown instruction of the air conditioning unit is received, the operation mode of the air conditioning unit is determined, the opening degree of electronic expansion valves of the air conditioning unit is adjusted to the preset opening degree according to the operation mode, and the electronic expansion valves comprise the heating electronic expansion valve and the indoor unit electronic expansion valve; after the opening degree of the electronic expansion valve is adjusted to the preset opening degree, the pressure difference value of the air conditioning unit is obtained, and the pressure difference value is the difference value between the pressure of a compressor exhaust port of the air conditioning unit and the pressure of an indoor unit inlet pipe; and controlling the air conditioning unit to be shut down under the condition that the pressure difference value is smaller than the preset difference value. Before the air conditioning unit is shut down every time, the opening degree of the electronic expansion valve is adjusted according to the operation mode of the air conditioning unit, so that the system pressure is balanced, and the problem that in the prior art, when the air conditioning unit has high pressure difference, loss of air conditioning components is accelerated due to direct shutdown is solved.
Owner:GREE ELECTRIC APPLIANCE INC OF ZHUHAI

A glass roller vacuum plasma cleaning apparatus

PendingCN122702750Aeasy to handleAll-round processing
This invention belongs to the technical field of plasma cleaning equipment, specifically relating to a glass drum type vacuum plasma cleaning device. It includes a frame, a vacuum chamber assembly, a vacuum pump assembly, a power supply assembly, an air inlet assembly, and a power unit. The vacuum chamber assembly connects the vacuum pump assembly, the power supply assembly, and the air inlet assembly. The vacuum chamber assembly includes an electrode assembly and a drum assembly spaced apart. The drum assembly includes a cavity, a glass drum, and supporting rollers. The glass drum and supporting rollers are rotatably mounted inside the cavity, and the supporting rollers provide radial support along the glass drum. The power supply assembly provides plasma excitation energy, vertically exciting the plasma along the cavity and passing it through the glass drum. This invention changes the angle of contact between the product and the plasma during plasma injection, solving the problems of excessive wear and high production costs in existing vacuum plasma cleaning equipment.
Owner:SHENZHEN NAEN TECHNOLOGY CO LTD

High-performance meta-aramid / mica composite insulation paper, preparation method and application

PendingCN122280007Aretain mechanical propertiesRetain high temperature resistancePolymer sciencePapermaking
This invention discloses a high-performance meta-aramid / mica composite insulating paper and its preparation method. The paper is formed by wet papermaking and hot pressing of a mixed slurry composed of meta-aramid chopped fibers, meta-aramid precipitated fibers, and mica flakes. The composite insulating paper has a thermal decomposition temperature ≥425℃, tensile strength ≥52N / mm, tear strength ≥2.2N / mm, and voltage breakdown strength ≥13.8kV / mm. The mass ratio of chopped fibers to precipitated fibers is (50~80):(50~20). The amount of mica flakes added is 5wt%~10wt% of the total mass of the two aramid fibers. The hot pressing adopts a segmented hot pressing process of "low-temperature pre-pressing - medium-temperature strengthening - high-temperature setting". By controlling the key parameters of the precipitated fibers and optimizing the ratio of chopped fibers to precipitated fibers and the proportion of mica flakes added, the paper is prepared through processes such as raw material pretreatment, graded mixing and dissociation, wet papermaking, and segmented hot pressing. Advantages: Through multi-parameter coordinated control and process optimization, the technical bottlenecks such as the mechanical and insulation properties of existing aramid composite insulating paper and insufficient thermal stability have been solved.
Owner:SHANGHAI ARAMID VALLEY NEW MATERIALS CO LTD +1

Multi-dimensional adaptive large model inference engine method and system

The invention provides a multi-dimensional self-adaptive large model inference engine method and system, and relates to the technical field of artificial intelligence, and the method comprises the steps: collecting hardware identification information of calculation hardware, and calling a hardware fingerprint database for matching to generate a hardware type result and a hardware characteristic parameter; constructing a hardware abstraction layer, loading a hardware abstraction driving plug-in according to a hardware type result, and virtualizing computing hardware into a unified logic computing power unit through a hardware abstraction interface; when a large model reasoning task is triggered, dynamically routing to a back-end executor according to a hardware type result by querying a back-end registry; on the basis of hardware characteristic parameters and a hardware abstract interface, a hardware compiling tool chain is called through a rear-end executor, graph optimization and operator fusion are executed on a large model calculation graph, and therefore self-adaptive deployment and efficient reasoning of a large model on heterogeneous hardware can be achieved; the problems that in the prior art, heterogeneous hardware is insufficient in compatibility, configuration is tedious and rigid, and compilation optimization barriers and performance losses are caused during model cross-platform migration are solved.
Owner:NANJING NANZI INFORMATION TECH

Wire feeding device for cable processing

ActiveCN224798223Ueasy to cleanTroubleshooting
The utility model relates to cable processing technical field, and disclose a kind of wire feeding equipment for cable processing, including ring body, setting in the opposite end of support;Slide bar, symmetrically and slidingly connected in ring body;Brush plate, symmetrically and fixedly connected in the one end of slide bar located inside ring body;Spring, fixedly connected with the opposite surface of brush plate in ring body inner wall, spring is sleeved in the outside of slide bar;Scraping plate, fixedly connected with the right side wall of ring body.Cable is past ring body, brush plate is adhered on cable surface by spring, and brush plate is cleaned when cable passes and the dust and impurity on surface, and then cable cleaned by brush plate is past scraping plate, and scraping plate is scraped more stubborn stain on cable surface, and cleaning effect is better.Cable cleaned is transported to subsequent equipment.Working personnel can replace brush plate and scraping plate periodically after long time use of brush plate and scraping plate, and cleaning capacity is reduced.
Owner:ORIENTAL PLASTIC CABLE CO LTD

High-frequency carrier plate and manufacturing method

The invention provides a high-frequency carrier plate and a manufacturing method. The high-frequency carrier plate comprises a first copper foil layer, a first PP layer, a first LCP layer, a first bonding layer, a core plate layer, a second bonding layer, a second LCP layer, a second PP layer and a second copper foil layer which are sequentially stacked in the height direction. The LCP layer is matched with the PP layer, so that the loss of high-frequency signals in the transmission process is reduced, and the transmission quality of the high-frequency signals is improved; and the glass fiber reinforced PP layer is arranged, and meanwhile, the insulation effect of the PP layer is improved through glass fibers, so that the problem of short circuit of the PCB is avoided. The PP layer is arranged on the outer side of the LCP layer, deformation of the LCP layer under the influence of the welding temperature is avoided, meanwhile, glass fibers of the glass fiber reinforced PP layer are used for supporting the copper foil layer, and the supporting performance of the high-frequency carrier plate is improved.
Owner:AKM ELECTRONICS INDAL PANYU

BIM (Building Information Modeling) technology-based rapid arrangement system and method for electrostatic floors of data machine room

The invention provides a BIM technology-based data machine room electrostatic floor rapid laying system and method, and the method comprises the steps: firstly building a data machine room BIM model, enabling an electrostatic floor laying module to extract ground geometric data from the BIM model, setting physical parameters, generating a laying region, carrying out the grid division, calculating an optimal laying path through a Dijkstra algorithm, and defining a target function; the method comprises the steps of optimizing cutting and using of electrostatic floors through linear programming, then refining an arrangement scheme, presenting and generating a construction guidance file in a three-dimensional visualization mode, counting the engineering quantity of the electrostatic floors through a material counting module, generating an electrostatic floor engineering quantity detail table, and performing centralized blanking. And finally, construction simulation animation production is carried out through a construction scheme simulation module, and a technical disclosure file is produced. The electrostatic floor arrangement efficiency and precision are improved, the construction cost and the error rate are reduced, fine management and optimal configuration in the construction process are achieved, secondary carrying is reduced, and loss is reduced.
Owner:CHINA CONSTRUCTION INDUSTRIAL & ENERGY ENGINEERING GROUP CO LTD

A structure perception and fact constraint enhanced report generation method for a steel continuous casting process

PendingCN122263891ASolve lossSolve the "forgetting in the middle" problemSemantic analysisBiological modelsLinguistic modelAlgorithm
The present application relates to the field of industrial intelligence and natural language processing, in particular to a continuous casting report generation method based on structure perception and fact verification, comprising: step S1, obtaining multi-dimensional time sequence data of continuous casting conditions and reconstructing into a structured wide table, embedding in multiple ways, domain gating denoising and cross attention mechanism, implicit dimension reduction of two-dimensional table to continuous structured soft prompt sequence; step S2, combining low-rank adaptive fine-tuning strategy, splicing the soft prompt sequence and the natural language instruction, inputting into the lightweight large language model for cross-modal feature decoding to generate the initial report text; step S3, constructing the post-check engine based on the relative distance constraint mechanism, recalling the condition facts in reverse and forcibly aligning and correcting the numerical value with probability deviation in the generated sequence. The present application alleviates the feature omission and numerical illusion problem caused by directly flattening complex industrial tables by the lightweight large language model, and improves the slot coverage rate and the factual accuracy of the core condition value under the premise of the computing power constraint of the lightweight large model.
Owner:EAST CHINA UNIV OF SCI & TECH

Hybrid inverter and off-grid switching device and switching switch device

The application relates to a hybrid inverter parallel-off-grid switching device and a switching switch device, the switching switch device comprising a relay, a shutdown module, a first starting module, a second starting module, a switching control module and a control module, the relay being connected with the shutdown module, the first starting module, the second starting module and the switching control module respectively, and the switching control module being further connected with the control module and the second starting module respectively. The switching switch device is applied to the hybrid inverter parallel-off-grid switching device, the relay can be quickly shut down through the shutdown module of the switching switch device, the disconnection speed of the hybrid inverter when quickly switching to the energy storage power supply mode during power grid failure is improved, power grid loss is reduced, and the problems of slow disconnection speed and large loss of the existing hybrid inverter when quickly switching to the energy storage power supply mode during power grid failure are solved.
Owner:ROYPOW TECH CO LTD

A high-frequency dynamic response type LVDT displacement sensor and a displacement measurement method thereof

Provided are a high-frequency dynamic response type LVDT displacement sensor and a displacement measurement method thereof, and belong to the field of precision displacement measurement. The sensor comprises a coil framework, a primary coil, a secondary coil, a core, a shell and a signal processing circuit. The primary coil and the secondary coil adopt a layered and segmented winding structure, an insulating layer is arranged between the layers, and a gap is arranged between the segments, so as to reduce the distributed capacitance and the eddy current loss; the core adopts a nanocrystalline alloy material and has high magnetic permeability and low loss; the signal processing circuit comprises a high-frequency excitation source of 10 kHz to 20 kHz, a lock-in amplifier and an LMS adaptive filtering module, and is used for suppressing noise. The measurement method comprises generating a high-frequency excitation, converting displacement into a differential signal, lock-in demodulation, adaptive filtering, temperature compensation and digital output. The dynamic response frequency of the present application is greater than or equal to 10 kHz, the response time is less than 1 ms, the precision is better than ±0.1% F.S., and the present application is suitable for high-frequency dynamic displacement measurement of aircraft control surfaces, engine vibration monitoring and the like.
Owner:SHAANXI BAOCHENG AVIATION INSTR

An ultramicro spectrophotometer cuvette detection structure

The utility model discloses a kind of ultramicro spectrophotometer cuvette detection structure, including operation platform, the rotating seat on the top of operation platform is rotatably connected with flip cover, main road optical fiber is equipped on the operation platform, the bottom of operation platform is also installed with cuvette placing box.The utility model passes through adopting double optical path design, pedestal and cuvette light path are independent, integrated design, without physical replacement spare part, by software selection "pedestal" or "cuvette card slot" mode, can effectively avoid cross contamination, when cuvette detection, directly cuvette is placed in the fixed slot beside pedestal, light path passes through incident optical fiber, aligns cuvette light transmission hole, the utility model structure is simple, without complex light path switching system, effectively solve the positioning problem and light energy loss problem of physical switching, improve the range of measurement, accuracy and reliability of equipment, convenient operation, convenient to carry, with higher practical value.
Owner:SHANGHAI MAPADA INSTR CO LTD

Circuit and method for improving interference of local oscillator phase discrimination stray on receiver

The invention discloses a circuit and a method for improving interference of local oscillator phase discrimination stray on a receiver. The circuit comprises a clock input, a local oscillator unit, a filtering and amplifying unit and a frequency conversion unit which are connected in sequence. The filtering and amplifying unit is formed by connecting a pre-amplifier, an adjustable filtering unit and a post-amplifier in series; the adjustable filtering unit comprises a passband filtering and trap wave network to realize secondary suppression. The circuit can dynamically switch paths according to spurious offset, so that phase discrimination spurious is remarkably suppressed at a specific frequency point, local oscillator signals in a wide frequency range are compatible, low insertion loss and power fluctuation are kept, and the contradiction between bandwidth and performance is effectively balanced. The receiver local oscillator is realized by adopting conventional components and switch structures, does not need a special process, is easy to be integrated into an existing receiver local oscillator circuit, and has good compatibility.
Owner:CHENGDU LIANBANG MICROWAVE COMM ENG

Non-wearing up-driving spiral sludge dewatering device

The utility model discloses a no wearing upper drive spiral sludge dewatering device relates to sludge dewatering equipment technical field, including main drive motor, gear drop mud tank, main driven spiral shaft, fixed dynamic ring piece group. Be equipped with dynamic ring drive mechanism above fixed dynamic ring piece group, and the movement conversion mechanism of dynamic ring drive mechanism will rotate the rotation of rotating transmission shaft and convert into plane swing. The input of arc movement output assembly is connected movement conversion mechanism, and the output is vertically through dynamic ring piece group. Two -way limit guide structure restricts the horizontal degree of freedom of arc movement output assembly bottom. Among them, movement conversion mechanism and arc movement output assembly cooperate, make dynamic ring piece group make arc reciprocating motion between fixed ring piece group, and dynamic ring piece group and driving spiral shaft and driven spiral shaft keep non -contact state, completely eliminate wear and tear, and the whole mechanism is located outside filtrate splashing area, and the structure is compact, and the cost is low, and the maintenance is convenient, and the filtrate passage is unobstructed, and effectively improve dewatering efficiency and equipment life.
Owner:JIANGSU KINTEP ENVIRONMENTAL PROTECTION EQUIP CO LTD

Aluminum profile surface spraying device and self-adaptive adjusting device

InactiveCN121847364ASolve the problem that the contact point is located in the middle of the profileSolve side problemsSpray boothsSuction forceMechanical engineering
The invention belongs to the technical field of spraying equipment, and particularly relates to an aluminum profile surface spraying device and a self-adaptive adjusting device.The aluminum profile surface spraying device comprises a spraying room, a suspended ceiling and an aluminum profile, the suspended ceiling penetrates through the spraying room, and a hanging rail is laid on the lower surface of the suspended ceiling through a hanging rod; the aluminum material spraying device further comprises an adjustable hoisting assembly, the adjustable hoisting assembly and the hoisting rail are hoisted in a sliding mode, strip devices are distributed at the two ends of the adjustable hoisting assembly in an array mode at an adjustable interval, and the two strip devices at the same height are used for clamping the two ends of an aluminum material and driving the aluminum material to rotate during spraying operation. And the paint suction assembly and the spraying machine are symmetrically distributed on the two sides of the spraying area, the paint suction assembly internally comprises a suction channel outer body arranged in a lifting mode, and the suction channel outer body moves up and down along with the spraying head and is used for increasing the spraying area while recycling paint. The problems that in a horizontal spraying mode, decoration face covering is uneven, the space utilization rate is low, and raw material loss is large are solved.
Owner:GUANGDONG WEIYE ALUMINUM CO LTD

All-vanadium redox flow battery system with laminated structure

The utility model belongs to the technical field of all-vanadium redox flow batteries, and discloses an all-vanadium redox flow battery system with a laminated structure. Comprising a power container, a capacity container, a refrigerating machine, a frequency conversion box and a confluence direct current box, an electric pile is located in the power container, an electrolyte storage tank and a circulating pump are located in the capacity container, the power container, the refrigerating machine and the frequency conversion box are installed and fixed above the capacity container, and the power container is connected with the capacity container through a pipeline. A confluence direct current box is arranged on the side face of the capacity container and connected with the power container through a cable. One set of battery module can comprise a plurality of capacity containers, so that the integration level of the battery module is improved, the power and capacity of a single battery module are improved, the cost of auxiliary equipment is reduced, and the application of a large-scale energy storage power station is facilitated.
Owner:DALIAN RONGKE POWER

High-pressure magnetic flap liquid level meter

The utility model discloses a high-pressure magnetic flap liquid level meter, and relates to the technical field of liquid level meters. The device comprises a cylinder, a nut, a sealing disc and a fixing pipe, the sealing disc is arranged at the bottom end of the cylinder, the nut is arranged in the cylinder, the top end of the nut is open, the upper portion of the inner wall of the nut is in threaded connection with an external thread cylinder, a magnetic attraction piece is fixed in the external thread cylinder, the top end of the cylinder is sealed, and the top end of the cylinder is fixedly communicated with the fixing pipe. The top end of the fixing pipe fixedly communicates with a high-strength balloon, the middle of the peripheral side of the fixing pipe fixedly communicates with a bypass pipe, and the end, away from the fixing pipe, of the bypass pipe fixedly communicates with a one-way pressure valve. Through the arrangement of the cylinder body, the nut, the sealing disc and the fixing pipe, the problems that in the using process of the magnetic turning plate liquid level meter, loss of liquid stored in a measured container is large, and the indicating precision of the liquid level meter is not high enough are solved.
Owner:HENAN FEIXIANG INSTR EQUIP CO LTD

Thickener top overflow water quality regulation and control device and regulation and control method thereof

The invention discloses a thickener top overflow water quality automatic regulation and control device and a regulation and control method thereof, and relates to the technical field of water quality regulation and control, the thickener top overflow water quality automatic regulation and control device comprises a main body, a processor, a power supply, a dredging module and a monitoring module, the dredging module is connected with the processor through a signal line, and the monitoring module is connected with the processor through a signal line; a processor is installed on the upper portion of the inner wall of the body, a power source is installed on the upper portion of the inner wall of the body, a dredging module is installed in the middle of the inner wall of the body, and a monitoring module is installed in the middle of the inner wall of the body. By installing the dredging module, the function of dredging equipment is achieved, the problems of water quality deterioration, treatment efficiency reduction, energy consumption increase and aggravated equipment abrasion are solved, it can be guaranteed that water flows smoothly, accumulation of suspended solids and impurities is reduced, the quality of overflow water is improved, the possibility of follow-up treatment is reduced, and economic benefits are improved.
Owner:JIANGSU SUNLIKE ENVIRONMENTAL ENG CO LTD