12results about How to "Fast scanning" patented technology

This invention provides a low-cost, bimodal particle size distribution titanium-based powder for additive manufacturing, titanium-based parts, and a method for preparing the same. The method utilizes two different medium particle sizes D... 50 Using near-spherical titanium-based powder as raw material, a near-spherical bimodal particle size distribution titanium-based powder with good uniformity is obtained by wet mixing of suspension and rotary degreasing in a furnace. Various near-spherical bimodal particle size distribution titanium-based powders can also be prepared. The difference between these powders lies in the different particle size ratios and mass ratios of the two raw material powders used. The bulk density and flowability of each bimodal powder are tested to determine the range of particle size ratios and mass ratios of the two powders in near-spherical bimodal particle size distribution powders with high bulk density and flowability. This guides the preparation of high-quality near-spherical bimodal particle size distribution titanium-based powders for additive manufacturing. Ultimately, additive manufacturing technology is used to prepare high-performance, low-cost titanium-based parts to meet the stringent performance requirements of titanium components in high-end fields such as aerospace.

This invention relates to the field of microscopy application technology, and in particular to a SICM scanning control method and related device based on feedback quantization. The method acquires the test height, initial scanning speed, initial safe height of the test point, first speed adjustment start point, and second speed adjustment start point of the test point. It controls the scanning probe to descend from the initial safe height of the test point to the first speed adjustment start point at the initial scanning speed, intervenes with first dynamic speed adjustment, continues to descend to the second speed adjustment start point, intervenes with second dynamic speed adjustment, and continues descending until the probe detects a sudden change in ion current and stops descending. This control method solves the problems of low scanning time resolution and poor safety in existing scanning ion conductivity microscopes by setting an initial speed adjustment point that dynamically adjusts the speed according to the probe's descent position.

This invention relates to the field of chip inspection technology, and more particularly to a chip non-destructive testing system based on embedded current scanning. The system includes a current scanning module, an information acquisition module, a data analysis module, an abnormal scanning region generation module, and a scanning path generation module. Instead of simply performing a higher-density secondary scan of the entire chip, this invention intelligently filters out abnormal scanning regions requiring special attention based on the initial scan results and calculates their scanning priority. This allows valuable inspection time and computing resources to be concentrated on the most suspicious and severe areas, avoiding unnecessary repeated scanning in normal areas. The system dynamically selects the optimal scanning path based on the regularity of the region shape; for example, parallel lines are used for regular regions, and radial lines are used for irregular regions. This makes the scanning path more closely match the geometric features of the defect, obtaining a more complete region characterization with fewer scanning points, resulting in higher path planning efficiency.

This invention discloses a multifunctional analyzer combining CL-LIBS-LA-ICP-MS, comprising a laser optical path module, an electronic excitation system, a spectral detection module, a sample chamber, and a mass spectrometry detection module. The laser optical path module includes a laser source, a beam adjustment system, a scanning galvanometer, and a coaxial microscopic observation system. The spectral detection module includes a light signal collection end, an echelle grating spectrometer, a gated camera, and a timing control module. Another aspect of this invention discloses an analytical method, comprising setting the environment to vacuum and performing CL imaging scanning; selecting a LIBS test area based on the CL imaging scan image and performing LIBS scanning; selecting a third test area based on the LIBS scan results, filling the sample chamber with carrier gas, and performing laser ablation mass spectrometry detection. This invention eliminates the positioning error caused by sample transfer between multiple instruments during combined techniques, provides more comprehensive information on the structure and composition of the sample, and further improves the detection efficiency of the entire method through two screening test ranges.

The utility model discloses an exposure scanning shaft drive mechanism, exposure scanning shaft drive mechanism adopts the mode of linear motor module drive, eliminates mechanical transmission gap, improves the scanning speed of exposure scanning shaft, improves the positioning accuracy of vertical exposure equipment, satisfies the high accuracy requirement of exposure machine field. The counterweight of the present application is connected with the mounting base, and the counterweight offsets the weight of the lens module, which can reduce the driving force when the linear motor module is driven, so that the exposure scanning shaft drive mechanism is suitable for heavy load occasions. At the same time, the problem of the lens module falling due to its own weight after the linear motor module is powered off can be avoided, and the adaptability of the exposure scanning shaft drive mechanism is improved. In addition, the exposure scanning shaft drive mechanism of the present application has simple and reliable structure, low noise and low wear, which greatly reduces the maintenance cost in the later period.

The application provides a laser galvanometer scanning device and a laser printing device, and relates to the technical field of laser processing. The laser galvanometer scanning device comprises a lens group and a plurality of laser units, and the lens group is located on the light emitting side of the laser units; the plurality of laser units are used for respectively emitting light beams to the lens group so that the light beams are converged by the lens group to form a plurality of converged light beams. The laser galvanometer scanning device and the laser printing device are used to solve the problem of low scanning speed of the laser galvanometer scanning device.

This invention proposes a control method, control circuit, and communication device for a phased array antenna. The control method first controls multiple antenna groups to radiate beams with a target main lobe direction sequentially according to a preset timing sequence. Each antenna group operates sequentially in a first time period and a second time period. In two adjacent antenna groups radiating beams, the second time period of the preceding antenna group coincides with the first time period of the following antenna group. During the first time period, a bias voltage is output to each liquid crystal antenna in the antenna group to bias the liquid crystal in the liquid crystal phase-shifting unit within the antenna group. During the second time period, a first radio frequency signal is output to the waveguide of the antenna group to form a beam with the target main lobe direction. Each liquid crystal antenna in the phased array antenna only requires one liquid crystal phase-shifting unit, simplifying the structure and design cost of the phased array antenna. Simultaneously, adjacent radiating antenna groups can be time-divisionally biased and radiated, improving the scanning speed of the phased array antenna.

This application provides an image data processing method and apparatus. Specifically, it involves acquiring an image to be processed; the image to be processed includes multiple projected images, each of which is obtained by scanning a target object using SPECT within a sparse angular range at a first interval angle; the first interval angle is greater than a second interval angle for scanning the target object across the entire angular range; denoising the image to be processed is performed to obtain a denoised image; tomographic reconstruction is performed on the denoised image to obtain image domain volume data; denoising is performed on the image domain volume data to obtain denoised image domain volume data; super-resolution processing is performed on the denoised image domain volume data to obtain a target image; the resolution of the target image is higher than the resolution of the image to be processed. In other words, the image data processing method provided by this application can improve scanning speed and reduce scanning time while ensuring image quality.

This disclosure provides a method and apparatus for accelerating disk scanning in Windows systems, relating to the computer field. The method includes the following steps: opening a master file table, wherein the master file table includes file records; determining the data attributes of the file corresponding to each file record; based on the file records, extracting the block numbers of file blocks whose data attributes are non-resident, obtaining a block number set; based on the block number set, extracting the logical block number of each block number; based on the logical block numbers, generating a logical block number list; and reading file content based on the logical block number list to complete the disk scan. The method and system of this disclosure, during the disk scanning process, employs a method that sequentially arranges the logical block numbers in the file records of the master file table, allowing the read / write head to sequentially read disk sectors, thereby improving disk scanning speed and saving disk scanning time.

This utility model discloses a high-speed X-ray inspection machine with dual-drive collaborative control, including a signal receiving device, a signal transmitting device arranged above the signal receiving device, and a product transmission line arranged between the signal receiving device and the signal transmitting device. The product transmission line includes two bases, a first transmission frame, a second transmission frame, a fixed frame, a translation drive mechanism, and a transmission drive mechanism. The two bases are arranged parallel and spaced apart, and each base has a straight slide rail arranged along its length on its top. This utility model, by employing a dual-motor drive, can provide stronger power, achieve faster scanning speed and inspection efficiency, and meet the rapid inspection needs in high-speed production lines, demonstrating strong practicality.

This invention relates to a laser seamless bonding method for waterproof and breathable down jacket fabric. The method includes the following steps: S1: Laying the three layers of the waterproof and breathable down jacket fabric, arranged sequentially from top to bottom in the order of outer, middle, and inner layers, on a worktable; S2: Fixing one edge of each of the three layers together, and lifting the other side of the outer windproof fabric to expose the middle waterproof and breathable membrane; S3: Using a laser head to generate a laser beam that acts on the middle waterproof and breathable membrane, melting the bonding surface of the membrane; S4: Applying pressure to the outer windproof fabric to bond it to the molten middle waterproof and breathable membrane; S5: Removing the bonded waterproof and breathable down jacket fabric from the worktable. This invention, through its flip-top design, allows the laser to act directly on the membrane, completely avoiding interference from the color, coating, and composition of the outer fabric on laser energy absorption / reflection, greatly expanding the range of applicable fabrics.

The application relates to a repair protective layer preparation method of a slurry circulating pump impeller, which comprises the following steps: a surface pretreatment step, a laser cladding additive manufacturing step, a finishing step, a surface treatment step and a corrosion and wear resistance treatment step, wherein the laser cladding additive manufacturing step comprises the following steps: automatically planning a route by using a laser cladding device, setting a repair transition layer, and setting at least one repair layer on the repair transition layer, wherein the scanning speed of the laser cladding device for setting the repair layer is greater than the scanning speed for setting the repair transition layer, the repair transition layer is made of an iron-based alloy material matched with the material of the impeller, and the repair layer is made of an iron-based alloy material with micro-nano particles added with WC and CeO2. The repair structure formed in this way has high bonding strength with the impeller base, and the impeller base and the repair layer are better integrated; the repair layer has the advantages of strength, toughness, wear resistance and corrosion resistance, the impeller as a whole is repaired to meet the use requirements, and the service life is prolonged.