125 results about "Ultra high speed" patented technology

The application discloses a test device and method for simulating the impact effect of super-high-speed penetration into the ground, wherein a static load loading system is used to apply static load to the periphery of a sample to simulate the ground stress environment, and a dynamic load loading system is used to apply impact dynamic load to the top of the sample to simulate the ground impact, wherein in the dynamic load loading system, a phase change reaction kettle is used to heat liquid CO2 to a supercritical high-pressure state, a liquid charging module is used to charge the phase change reaction kettle with liquid CO2, a barrel is used to receive the high-pressure gas released by the phase change reaction kettle and form an approximately planar ground shock wave, a stress wave lens module is used to adjust the width of the ground shock wave through a stress wave lens combination and act on the sample, and a control module can control the peak pressure of the ground shock wave by regulating the heating power of the phase change reaction kettle and can control the duration of the ground shock wave by adjusting the aperture of the barrel. The application realizes controllable and high-fidelity simulation of the impact effect of super-high-speed penetration into the ground.

The application discloses a Fe self-catalytic in-situ lithium supplementing and graphite carbon-coated lithium manganese iron phosphate positive electrode material and a preparation method thereof, and belongs to the technical field of lithium batteries. 2+ Catalyze PAN to generate sp 2 Carbon, LiBOB-Li2O microcapsule in-situ lithium supplementing, and then ultra-high speed quenching to obtain the product. 2+ Self-catalysis, integration of carbon coating and in-situ lithium supplementing, greatly improving the conductivity, the first charge-discharge efficiency and the rate performance of the material, simple and controllable process, suitable for industrial production, and the prepared material has high compacted density and excellent cycle stability.

The present application relates to the process for eliminating the aluminum scraps on the surface of the continuous extruded aluminum alloy flat tube, by optimizing the aluminum alloy composition: Cu: 0.09-0.12%, Si: 0.03-0.05%, Fe: 0.12-0.17%, Fe: Si >= 3, Ti: 0.006-0.0075%, Ce and La mixed rare earth: 0.045-0.055%, the balance being Al, to improve the aluminum rod casting performance and the uniformity of the structure; at the same time, the refining process of adding rare earth in the furnace and adding aluminum titanium boron wire online is combined, so as to ensure that the porosity of the aluminum rod reaches 1 level. The ultra-high-speed online homogenization heat treatment is adopted, so that the chemical composition of the aluminum rod is homogenized in a very short time, and the intracrystalline segregation is eliminated. While improving the fluidity of the metal, the extrusion process parameters are optimized, the mold cooling process is changed, the extrusion temperature fluctuation is ensured to be in the minimum range, and constant temperature extrusion is realized; and the surface of the flat tube is treated online after the product is formed, and finally the technical purposes of eliminating the aluminum scraps on the surface of the aluminum flat tube and reducing the pressure pit defects are achieved.

The application discloses an anti-deformation crown-shaped cage of a super-speed motor bearing and a manufacturing method, and belongs to the technical field of motor bearings. The anti-deformation crown-shaped cage of the super-speed motor bearing is printed by a functionally graded material, the functionally graded material comprises hard-phase material and soft-phase material, the hard-phase material is glass fiber, and the soft-phase material is nylon 66; the equivalent elastic modulus of the functionally graded material continuously and gradually changes along the axial direction from the bottom of the pocket hole to the end of the locking claw, so that the elastic modulus of the bottom area of the pocket hole is higher than that of the end area of the locking claw, and the ovalization deformation of the pocket hole and the centrifugal deformation of the locking claw are cooperatively inhibited; the functionally graded material is introduced to actively reconstruct the stiffness field of the crown-shaped cage; the toughness phase is constructed in the locking claw area to absorb collision energy, the reinforced phase is formed in the pocket hole area to weaken stress concentration, and the stiffness gradient is established at the connecting position to inhibit the umbrella effect; and the application provides the crown-shaped cage with the characteristics of high toughness, gradient and high strength and a design method thereof.

This invention discloses a method for preparing high-entropy alloy wear-resistant coatings by ultra-high-speed laser cladding, comprising the following steps: S1, using metal powders Fe, Co, Cr, Ni, W and Ta as raw materials, ball milling and mixing to prepare FeCoCrNiW x Ta y S2. Pre-treat the substrate surface to remove surface oxide scale and impurities; S3. Use ultra-high-speed laser cladding technology to clad Ni625 alloy powder onto the substrate surface to prepare a transition layer, and then polish and clean the surface of the transition layer; S4. Use ultra-high-speed laser cladding technology to clad FeCoCrNiW x Ta y A working layer is prepared by cladding high-entropy alloy powder onto the surface of a transition layer to obtain the finished product. This invention first prepares a transition layer on the workpiece, and then prepares the high-entropy alloy working layer, which effectively alleviates the performance difference between the working layer and the sample substrate, improves the problem of easy cracking of the high-entropy alloy working layer, and greatly enhances the overall protective effect of the coating.

1. The name of the design product: ultra-high-speed micro-blower rotor assembly. 2. The use of the design product: for building ultra-high-speed micro-blower. 3. The design points of the design product: in the overall shape. 4. The picture or photo that best indicates the design points: perspective view.

An advanced integrated optical transceiver enables super high-speed communication between chips such as GPUs and HBM. Designs for such a transceiver may be based on an array of GaN micro-LEDs and an array of Si photodetectors (PDs) which are hybrid bonded (i.e. via “direct bond interconnect”) to a CMOS chip. Hybrid bonding makes the integrated optical transceiver very small and highly reliable.

This application discloses a time-interleaved ADC with redundant channels and its control method, relating to the field of integrated circuit technology. The time-interleaved ADC includes multiple analog signal input selection switches, multiple sub-ADCs, and an output data selector. Each sub-ADC is divided into a sampling conversion channel and a redundant channel. The sampling conversion channel is used to convert analog signals into digital signals, and the redundant channel is set to be in a non-data conversion state when the sampling conversion channel is working. Each sub-ADC is used to convert analog input signals into corresponding branched digital signals. The output data selector is used to combine the branched digital signals into a total digital signal by time-division multiplexing. This application improves the dynamic range performance of the time-interleaved ADC and eliminates the data dependency problem of ultra-high-speed ADCs by adding redundant sub-ADC channels.

This invention provides a method and apparatus for detecting the reuse of centrifuge tubes in ultra-high-speed centrifuges, comprising the following steps: S1, pressurizing and filling a medium into a new centrifuge tube, and detecting the diameter deformation of the centrifuge tube online; S2, using the maximum pressure that the centrifuge tube can withstand to return to its initial diameter as the yield limit pressure value; S3, replacing the centrifuge tube to be reused, pressurizing and filling the centrifuge tube to be reused with a medium, controlling the reuse pressure value at 75%~95% of the yield limit pressure value; S4, detecting the diameter deformation of the centrifuge tube to be reused online; S5, selecting the centrifuge tube that can return to its initial diameter as the reuse centrifuge tube. This invention can detect centrifuge tubes and determine whether they can be safely reused, significantly reducing experimental costs. It can be used to detect whether replacement centrifuge tubes meet the application requirements of ultra-high-speed centrifuges. It prevents substandard centrifuge tubes from entering the ultra-high-speed centrifuge, causing equipment damage or even sample leakage.

The application provides a method for realizing color continuous gradient transition by using DLP light curing 3D printing, and belongs to the technical field of additive manufacturing. The steps comprise: providing a dual-wavelength DLP light curing printing device, adjusting a printing focal plane, segmenting and slicing a three-dimensional digital model, setting dual-wavelength exposure parameters, preparing a photosensitive resin slurry containing components such as pH responsive dyes and photoacid generators, completing layer-by-layer printing through reciprocating dynamic switching of visible light curing forming and ultraviolet light color regulation, and obtaining a target workpiece after post-processing. The method realizes high-resolution, continuous gradient integrated forming of multi-color materials through single-light-machine dual-wavelength (365nm ultraviolet light and 460nm visible light) ultra-high-speed dynamic switching combined with a specific formula of photosensitive resin slurry.

1. Name of the designed product: main shaft of air blower (super high speed micro type) 2. Use of the designed product: used for constructing super high speed micro air blower 3. Design points of the designed product: in the overall shape 4. Picture or photo showing the design points: perspective view

This application relates to the field of additive manufacturing technology, and particularly to a coating powder for ultra-high-speed laser metal 3D printing, its preparation, and a printing method. The coating powder consists of metal powder and an organic coating layer covering the surface of the metal powder. The organic coating layer has the following weight proportions: rigid polymer backbone: 35-70 parts; polymer containing coordinating groups: 10-30 parts; soluble pore-forming agent: 10-30 parts; lubricant: 5-15 parts; leveling agent: 0.5-2 parts; antioxidant: 0.5-3 parts; defoamer: 0.5-2 parts; antistatic agent: 0.5-2 parts. By co-coating the surface of the metal powder with the polymer containing coordinating groups and the soluble pore-forming agent, a composite coating layer that functions as both a reaction site and a sacrificial template is constructed. This solves the problems of low green strength, uncontrollable pore structure, difficulty in functional modification, incompatibility with traditional binder systems, and complex post-processing in existing technologies.

The present disclosure relates to a 5G or 6G communication system for supporting higher data transmission rates. The present disclosure relates to a 5G or 6G communication system for supporting higher data transmission rates, connections between more devices, and the like such as ultra-high speed, ultra-low latency, and ultra-connection. In addition, the present disclosure relates to a low-power communication system in which a device having no battery or having only capacitor-level energy storage capability may operate. The present disclosure relates to operations of a base station, a terminal, and a device in a wireless communication system. The present disclosure relates to a method and device for, when data transmission / reception between a reader and a device occurs, determining, at a receiving end, whether an additional signal is included in a data transmission signal, and determining whether to perform an operation for receiving the additional signal.

This invention discloses the web output structure of a single-doffer carding machine, which includes a doffer roller, a cohesive roller, an output roller, an output curtain, and a negative pressure adsorption unit. This invention utilizes the traction guidance and stable pressure cooperation of the first and second adsorption components to construct a dual guarantee of tangential traction and normal compression. It uses negative pressure to overcome adhesion and initiate the web, while normal pressure ensures tight adhesion to the output roller at high speed, preventing swaying and vibration, achieving single-pass transfer, reducing fiber damage and tension fluctuations, minimizing clouding and unevenness, and achieving high-speed, precise transmission. Simultaneously, a gradually decreasing negative pressure is formed based on a diverter plate, solving the problems of web rebound, offset, and peeling interference caused by instantaneous negative pressure, eliminating fly waste and dead-angle accumulation, and eliminating the risk of damage from hardened lumps. Furthermore, the synergy between single cohesion and single-pass transfer ensures fiber integrity and web purity, improves the equipment's adaptability to different web weights, and establishes the carding machine's technical advantages of high efficiency, stability, and high quality during ultra-high-speed operation.

This invention discloses an on-chip integrated two-dimensional van der Waals heterojunction high-speed photodetector and its fabrication method, comprising: a substrate constructed sequentially from bottom to top; an optical waveguide; a heterojunction composed of stacked graphene and black phosphorus layers; metal electrodes respectively contacting the graphene and the black phosphorus; and an alumina layer covering the surfaces of the black phosphorus and graphene layers for protection. This invention achieves an operating bandwidth greater than 40 GHz, significantly improving the applicability of the photodetector in high-speed communication and high-frequency signal processing, meeting the performance requirements of future ultra-high-speed optoelectronic systems. By optimizing the black phosphorus and graphene heterojunction structure, dark current is suppressed to the microampere level, while a high responsivity of 18 mA / W is achieved at a wavelength of 1.55 μm, providing high-sensitivity photodetection capability. By covering the channel material surface of the device with an alumina protective layer, the environmental adaptability and long-term operational stability of the heterojunction are significantly improved, ensuring high reliability and stability of the device under complex environmental conditions.

The application provides a multi-mode laser ranging and speed measuring device and method for a super-high-speed maglev system, which comprises a laser range finder, a laser reflection plate, a vehicle-mounted grating light source, a plurality of ground laser receiving modules and a data signal processor; the laser range finder is arranged on the ground and is used for emitting laser to the laser reflection plate and acquiring the absolute position of a vehicle according to the reflected laser; the laser reflection plate is arranged on the vehicle and is used for receiving laser and reflecting the laser back to the laser range finder; the vehicle-mounted grating light source is arranged on the motor rotor of the vehicle and is used for emitting laser to form a grating, and the grating is irradiated into the corresponding ground laser receiving module; the plurality of ground laser receiving modules are arranged on one side of the ground track along the direction of the vehicle movement at equal intervals and are used for receiving the grating and generating the relative position information of the vehicle according to the grating; and the data signal processor is used for obtaining the actual position and speed of the vehicle according to the absolute position and the relative position information of the vehicle.

This invention discloses a method for smelting 400km / h hot-rolled U71MnG high-speed rails based on closed-loop control of inclusions throughout the entire process. The method includes: oxygen control and pre-deoxidation at the converter source; LF refining with aluminum-free deep deoxidation and simultaneous inclusion modification; VD vacuum purification and soft blowing to promote inclusion flotation; homogenization control throughout the continuous casting process; synergistic use of dual electromagnetic stirring and weak cooling water distribution; and precise control under dynamic light pressure. The chemical composition by mass percentage is: C: 0.71-0.74%, Si: 0.25-0.40%, Mn: 1.15-1.30%, P: ≤0.015%, S: 0.008-0.015%, and the Mn / S ratio ≥80. This invention addresses the core pain points of ordinary high-speed rail smelting through precise narrow composition design, closed-loop control of inclusions throughout the entire process, and synergistic regulation of homogenization during continuous casting, achieving a unified approach to ultra-high-speed service adaptability, high purity, and high yield of hot-rolled rails.

The present invention provides a vehicle control device that suppresses the temperature rise of the PCU when transitioning from ultra-high speed driving to an extremely low speed state, thereby ensuring driving performance such as restarting and re-engaging. [Solution] The electronic control unit 60 performs flow rate suppression control when the vehicle 10 transitions from ultra-high speed driving (UHS) to an extremely low speed state (ULS) which is stopped or just before stopping, and the first water temperature T1, which is the temperature of the coolant flowing out of the radiator 32, is equal to or greater than the second water temperature T2, which is the temperature of the coolant flowing out of the PCU 40, and the state in which the first water temperature T1 is equal to or greater than a predetermined water temperature TN continues for a first predetermined period BT1 or longer, by reducing the flow rate Mw of the coolant for a second predetermined period BT2. This prevents heat generated from the electric motor MG from being transmitted to the PCU 40 via the coolant. Therefore, the temperature rise of the PCU 40 is suppressed, and driving performance such as restarting and restarting from the extremely low speed state (ULS) is ensured.

The present application relates to the technical field of integrated circuits. Disclosed is a data generation circuit for a high-speed transmitter. The circuit uses a two-stage structural design, wherein a first-stage circuit unit generates a narrow pulse signal by means of the coordination of an input transistor, a pre-discharge control transistor, a reset control transistor and a pre-charge control transistor, and a second-stage circuit unit converts a non-full-swing pulse signal into a full-swing signal by means of a pull-down transistor and a plurality of pull-up transistors, and then outputs the full-swing signal. The present application realizes stable and reliable signal generation and shaping in an ultra-high-speed scenario in which a unit time interval is less than or equal to 10 picoseconds, is applicable to a 1 / 4-rate or 1 / 8-rate high-speed transmitter, and has the characteristics of a simple structure and precise timing.

The application relates to an FPGA-based super-high-speed network security transmission method and system, and belongs to the technical field of network security communication. The system is mainly composed of a network interface module, a password processing module and a configuration management module. The network interface module provides the transmission of super-high-speed network messages, the analysis and recombination of protocols and the compliance inspection of messages; the password processing module fully utilizes the parallel processing capacity of the multi-algorithm unit of the system and provides gatekeeper-type encryption and decryption and out-of-order rearrangement services for network messages. The configuration management module realizes the unified management of the configuration of the running parameters of the network interface module and the password processing module and the audit log through a management bus. The application solves the problems of poor performance, low bandwidth, unstable password operation delay, message disorder and the like of traditional security transmission equipment, and solves the problems of real-time performance, confidentiality and integrity of super-high-speed data transmission between two network domains.

This invention discloses a protective coating and coating method for the inner liner of an electric air fryer. The coating comprises a composite film structure formed by alternately adding nano-waterborne coating and nano-organic ceramic coating to form a nano-waterborne coating and a nano-organic ceramic coating. Two coatings with a fixed thickness ratio are alternately coated on the inner liner surface using high-energy laser beam scanning and ultra-high-speed laser cladding technology. This invention, through the composite layer structure of alternating nano-waterborne coating and nano-organic ceramic coating, helps eliminate the layered structure of conventional coating surfaces, resulting in a smoother overall coating, reduced porosity, and improved overall coating durability. The newly added nano-waterborne coating effectively improves the breaking and rearrangement of key bond energies in the nano-organic ceramic coating, reducing hydrocarbon gas emissions and effectively suppressing the generation of irritating odors. Improvements to the nano-organic ceramic coating formulation increase the overall hardness and impact resistance of the inner liner surface coating, effectively addressing the problem of excessive brittleness in ceramic coatings.

The application discloses a multifunctional integrated interposer and a photoelectricity collaborative packaging module, and belongs to the technical field of integrated circuits.The multifunctional integrated interposer is characterized in that a first embedded interconnection unit of an integrated super-high-density and super-low-loss physical wiring channel circuit and a second embedded interconnection unit with photoelectric conversion function are co-planarly embedded in a dielectric body, and the upper surfaces of the two units are flush with the upper surface of the dielectric body, thereby realizing high integration of the two functional units in structure, effectively shortening the interconnection path of high-speed electrical signals and optical signals between chips, and reducing transmission loss and delay.The embedded physical wiring channel circuit can directly provide super-high-speed physical signal direct through in the first embedded interconnection unit, and the USR super-high-speed interface protocol processing function is transferred to an acceleration computing core, thereby significantly improving signal integrity, saving external special DSP chips, and simplifying system architecture, reducing overall power consumption and packaging complexity.

The application discloses a kind of LDPC multi-bit quantization hardware decoding method suitable for high-speed communication, it is related to the field of communication physical layer digital signal transmission, including the steps 1) reset decoding module, from channel obtains the information sequence to be decoded and carries out suitable bit quantization extension;2) to meet the engineering demand of super high speed, low resource consumption, low latency, the application adopts a kind of full parallel decoding structure, the full parallel decoding structure can realize all check nodes update simultaneously and provide to all variable nodes.3) check node update is carried out by 6 parallel ways, the normalization factor used in the application check node update is obtained by adaptive mode;4) the check node information obtained in step 3 is as the input of variable node update module, variable node update is carried out by 6 parallel ways, the input in the application variable node update module is improved by expanding the number of bit quantization to improve the decoding ability of decoder.

This invention provides a reference-free background calibration method for ultra-high-speed TIADCs based on minimum mean square (RMS) calibration. It employs a decimation-calibration-interpolation calibration mode. The original quantized data is decimated using a specific decimation rate to obtain multiple quantization code sets. A step-by-step grouping calibration algorithm is used based on the number of interleaved channels, selecting the first quantization code set for step-by-step calibration. Each step involves grouping the data and using a dual-channel synchronous detection method based on a binary search to search for the clock jitter value of each channel in the grouped quantized data. Other quantization code sets are then compensated using a first-order Taylor approximation in the digital domain based on the clock jitter value of the first quantization code set. Finally, the compensated multiple quantization code sets are re-interpolated to obtain the calibrated result of the original data. This invention eliminates the need for a reference channel, minimizing the RMS of the detected clock jitter value and thus improving compensation accuracy.

The utility model discloses a kind of pin interrupt simulation devices for vehicle-mounted electronic testing, belong to vehicle-mounted electronic testing field, including power module, FPGA module, reference measurement module, load and protection module, control and communication module, measured piece, signal processing module, each module is connected through standardization interface.This utility model realizes the interruption of power line and signal line, plug-in simulation test by modularization processing, FPGA integrated operation, suitable for the reliability test of vehicle-mounted electronic equipment, with super high-speed response, multi-standard dynamic compatibility, programmable flexibility is high, equipment life cycle is long, multi-channel high-precision synchronous test, low-power miniaturization processing and the like advantages.