6 results about "Material scattering" patented technology

The invention discloses a space scattering light field distribution measurement method, which realizes measurement of space scattering light field distribution, and specifically comprises the following steps: S1, a tested sample or a reference sample close to ideal mirror reflection is not placed at a test position, a light source enters at a first angle, and a detector receives and measures light radiation from different angles to obtain light source light field distribution; s2, placing a tested sample at the test position, enabling the light source to enter at a second angle, receiving and measuring light radiation passing through the tested sample from different angles by the detector, and obtaining scattered light field distribution of the tested sample; and S3, decoupling the scattered light field distribution of the tested sample by using the light field distribution of the light source to obtain the corrected scattered light field distribution of the tested sample. According to the invention, the influence of the measurement system on the material scattering light field distribution test is eliminated, and the two-dimensional display detector is introduced for receiving, so that the measurement is more accurate. The method is especially obvious in effect on samples with higher specular reflection or higher transparency.

This invention discloses a high-precision track reconstruction method for GeV-level proton beam telescopes, comprising: setting a high-current mode to collect hit clusters of multi-particle events within a single time window; employing a layer-by-layer state prediction intelligent search algorithm based on a multiple Coulomb scattering model, starting from the first detector layer, combining initial angular dispersion and material scattering to calculate the total angular dispersion standard deviation, and determining circular candidate search regions layer by layer; performing track connection, branching, or pruning based on cluster matching within the region; updating the track direction using the connection direction of matched clusters, and superimposing the scattering angle standard deviation of the next layer of material, iteratively predicting subsequent search regions until all detector layers are traversed, outputting a high-quality candidate track set. This invention can achieve stable and efficient track reconstruction under the conditions of GeV-level proton beams with significant scattering and accumulation, providing a reliable data foundation for high-precision detector calibration.

The settlement beam is assembled at the bottom of a carriage, the settlement beam is composed of a pair of main beams arranged in parallel, a settlement part is arranged in the middle of each main beam, the main beams are of a Z-shaped structure integrally through the settlement parts, a plurality of cross beams are arranged between the pair of main beams at equal intervals, and a discharging port is formed in the front end of the carriage. And when the carriage is assembled on the settlement beam, the discharge port at the front end of the carriage is positioned above the settlement part. The settlement beam is suitable for a specific compartment, so that enough space is reserved between the discharging port of the compartment and the settlement beam to avoid accumulation of forage during fodder scattering, and due to the fact that the discharging ports are located on the two sides of the front end of the compartment, a driver can observe the fodder scattering condition through rearview mirrors during fodder scattering, and the fodder scattering effect is improved. Compared with rear-end discharging of a traditional tilting cart, the fodder scattering degree can be controlled, the fodder discharging amount can be observed through a rearview mirror, and fodder waves can be avoided to a certain degree.

The present invention discloses a method and system for determining a key dimension of a low-dimensional material by optical scattering. The method includes: controlling a light source to be obliquely incident onto a low-dimensional material to be observed and a substrate at a set angle, wherein the set angle is able to enable a light receiving device located above or below the low-dimensional material to only receive light scattered by the low-dimensional material; converting the received scattered light into an optical image; obtaining a brightness value of each pixel in the optical image, and establishing a correspondence relationship between a position and brightness; calculating a contrast based on the correspondence relationship between the position and the brightness, and determining the key dimension of the low-dimensional material based on a pre-calibrated correspondence relationship between the contrast and the key dimension of the low-dimensional material.

The application discloses a curved chute material falling trajectory control method and device and a storage medium, and relates to the field of conveying automation. Three-dimensional point cloud data of a material surface on a lower conveying belt is obtained through laser radar scanning; filtering and interpolation fitting are performed to obtain a continuous and smooth material cross-section profile curve; each frame of material cross-section profile curve is combined with a belt reference height curve obtained through calibration in the empty state, three-dimensional cross-section characteristics of a real-time material flow are solved, and a horizontal gravity center offset of the material relative to the gravity center of the center of the lower conveying belt is calculated; when the gravity center offset exceeds a preset allowable threshold, a turning plate control instruction is generated, an independently driven electric turning plate is controlled to act in cooperation until the gravity center offset corresponding to the material flow state returns to within the allowable threshold. The scheme can realize real-time sensing of the curved chute material falling state, accurate calculation of the horizontal gravity center offset of the material, automatic driving of an actuator for dynamic closed-loop correction, and effective prevention of material scattering and equipment failure caused by improper material falling.

The invention discloses an ultrasonic-assisted laser cladding device, which relates to the technical field of laser cladding and comprises a rack, a sliding table, a sliding seat, a laser head, a material guide cover, a transmission plate and a material barrel. Through the arrangement of the sliding seat, the laser head, the material guide cover and the transmission plate, the sliding seat can drive the laser head and the material guide cover to move up and down, the laser head conducts laser cladding machining on the surface of a workpiece, meanwhile, the material guide cover evenly spreads Ni-based powder on the machining position of the surface of the workpiece so as to achieve synchronous proceeding of material scattering and machining, and in the process, the machining efficiency is greatly improved. The transmission plate generates high-frequency vibration under the action of ultrasonic waves generated by the ultrasonic generator above the transmission plate, the vibration is transmitted into the material guide cover through the transmission rod, and the powder in the material guide cover generates high-frequency vibration under the influence of the ultrasonic waves, so that the powder is uniformly mixed and uniformly scattered on the surface of a workpiece; therefore, the problems of uneven temperature field and the like caused by uneven powder scattering on the surface of the workpiece are solved.