3359 results about "Galvanometer" patented technology

The invention relates to a laser inter-satellite link test method, system and device and a computer readable medium, which are used for performing butt joint test on a laser inter-satellite link by using a laser inter-satellite link test system. The laser inter-satellite link test system comprises any one of a laser high-speed processor, a first laser terminal, a second laser terminal, a first collimator, a second collimator, a monitoring camera, a micro-vibration simulation galvanometer and a rotary table. The method comprises the following steps: carrying out a signal light capturing and tracking test; carrying out beacon light capturing and tracking and communication distance measurement test; carrying out a beacon light leapfrogging capturing and tracking test; carrying out a broken chain recapture test; performing a long-time link establishment assessment test; therefore, any one of the capture time, the link establishment time, the coherent fine tracking precision, the error rate, the ranging random error, the link reestablishment time, the link establishment interruption times and the recapture success times of the laser inter-satellite link is obtained. According to the invention, the matching performance and reliability of working processes among single machines can be effectively verified, and system risks can be effectively prevented.

The invention relates to the technical field of laser engraving, and discloses a laser engraving method and system capable of automatically correcting coordinates of a galvanometer and a camera, and the method comprises the following steps: calculating a target conversion coefficient based on a calibration size and a pixel size of an image collected by the camera, and controlling the galvanometer to perform laser etching on a cross mark on the surface of a PCB (Printed Circuit Board), recording origin data of a galvanometer coordinate system; adjusting the position of the camera to enable the cross center of the view of the camera to coincide with the cross mark, and calculating the coordinate offset; coordinate space transformation is carried out on all the points to be machined, and galvanometer marking coordinate data are obtained; after laser engraving is carried out on the galvanometer marking coordinate data, an engraving area image is collected, the position residual error and the size proportion deviation are calculated, laser engraving is carried out again, and a laser engraving result is obtained. The technical problem that the visual positioning coordinate and the galvanometer marking coordinate in the laser engraving system are not consistent is effectively solved.

The invention belongs to the technical field of automatic assembly, and discloses an automatic assembly system and method for a large nut of a water turbine ball valve, and the system comprises a mechanical arm, an end effector and an intelligent nut tightening control system. The end effector integrates an electromagnet adsorption mechanism, a servo drive rotating mechanism, a floating compensation mechanism and a visual recognition mechanism, nuts of different specifications are grabbed in a self-adaptive mode through an electromagnet, submillimeter-level accurate positioning is achieved through a laser galvanometer stereo camera, and the assembling posture is automatically adjusted in combination with the floating compensation mechanism. The intelligent control system adopts a staged tightening strategy, performs real-time monitoring through a torque sensor, and has a dual protection mechanism. The hydraulic turbine ball valve large nut assembling machine achieves full-automatic assembling of hydraulic turbine ball valve large nuts, has the advantages of being high in assembling efficiency, high in positioning precision, high in adaptability, reliable in quality and the like, solves the problems that manual assembling is large in labor intensity, many in potential safety hazards, poor in quality consistency and the like, and remarkably improves the assembling quality and efficiency of key parts of a hydropower station.

The invention relates to the technical field of precision manufacturing, and discloses a multi-mode laser galvanometer calibration method and device. The method comprises the steps of obtaining a smooth angle sequence, comparing the smooth angle sequence with a calibration model, extracting an abnormal component if a comparison deviation is abnormal, and performing smooth processing to obtain a deviation vector; fusing the statistical characteristics of the light beam position and the deviation vector, predicting the light beam position, and generating a calibration parameter set if the light beam position exceeds a deviation range; extracting a key compensation item and optimizing a driving sequence, fusing frequency domain interference to generate a simulation track, and determining a stability index; and comparing the environment feature set, adjusting parameters to obtain an enhanced path model, and determining a final calibration scheme in combination with real-time feedback. According to the method, accurate calibration of the galvanometer in a multi-mode dynamic scene can be realized.

The invention belongs to the technical field of retina imaging and fundus three-dimensional reconstruction, and particularly relates to a color three-dimensional fundus imager optical system. Comprising a large eye objective lens, a dichroscope, a hollow reflector, a focusing lens, a spectroscope, a retina lens, a retina imaging chip, a fixation lens, a sighting mark lamp, an illumination lens, an annular light source, a pupil lens, a pupil imaging chip, an infrared lens, an infrared dodging lens, an infrared light source, a scanning lens, a three-dimensional galvanometer, a collimator, a coupler, a frequency sweeping light source and a dispersion compensator. A polarization controller, a coupler and a photoelectric detector. The system is mainly composed of a visible light imaging light path, an infrared imaging light path and a laser imaging light path, the visible light imaging light path is used for shooting color fundus two-dimensional images, the infrared imaging light path is used for real-time positioning and focusing of human eye pupils, and the laser imaging light path is used for three-dimensional tomography of retinas. The objective of the invention is to solve the problem that existing medical equipment cannot acquire fundus color three-dimensional images.

The invention discloses a PCB (printed circuit board) back drilling stub length detection device and method, and belongs to the technical field of PCB detection, the PCB back drilling stub length detection device comprises a broadband light source, the output end of the broadband light source is connected with an optical fiber coupler, and one end, deviating from the broadband light source, of the optical fiber coupler is respectively connected with a first optical fiber collimator and a second optical fiber collimator; the first optical fiber collimator is provided with a lens and a reflector on an optical transmission path; the second optical fiber collimator is provided with a galvanometer on a light transmission path, and a scanning lens is arranged in the light emitting direction of the galvanometer; and the optical fiber coupler is also connected with a spectrograph. On the basis of the low-coherence light interference principle, the PCB back drilling stub length detection device is designed, the output power and the output bandwidth of a broadband light source are correspondingly adjusted, the insertion loss of an optical fiber coupler is controlled, the collection rate of a spectrograph is adjusted, finally, the axial resolution reaches 5 micrometers, the transverse resolution reaches 10 micrometers, and the requirements that the diameter is smaller than 0.1 mm, and the detection precision is larger than 0.1 mm can be met. And detecting the stub length of the deep micropore with the depth of less than 10mm.

The invention relates to the technical field of solar cell processing, in particular to a laser light-transmitting scribing control method and system for a solar thin-film cell. The control method comprises the steps that a large-size substrate is divided into a plurality of galvanometer view fields through a dynamic flight continuous machining mode, a continuous snake-shaped machining path is generated, the laser machining platform is driven to continuously move at the constant speed, and the galvanometer scanning system is synchronously triggered to start lineation in a splicing area in advance. According to the method, a time domain coupling equation of galvanometer scanning frequency-platform movement speed-laser pulse sequence is established, and dynamic compensation of an optical path and self-adaptive adjustment of energy density are achieved in the continuous machining process. Based on a view field expansion algorithm of a nonlinear kinematics model, the phase deviation of a scanning vector and a motion vector is effectively inhibited, and the geometric continuity of a splicing interface in ultra-long stroke machining is guaranteed.

The invention provides an ultrafast laser welding method and device for large-spacing heterogeneous materials. The ultrafast laser welding method specifically comprises the steps that a lower workpiece and an upper workpiece are stacked and clamped through a clamp; a laser beam is collimated, then enters a scanning galvanometer and is focused through a field lens after being emitted, first scanning laser energy is absorbed by a lower-layer material to generate plasma, the plasma continuously expands and overflows, meanwhile, the lower-layer material is melted to fill a gap, and the quasi-optical contact condition is achieved; free expansion of plasmas in second scanning is effectively inhibited, laser energy is limited near a welding seam, the melting volume of the area is remarkably increased, and the welding strength is remarkably improved; and the third scanning and the second scanning are consistent in mechanism, the material melting amount is increased, and finally welding head strengthening is achieved. Through the scanning galvanometer and the field lens, a focusing light spot moves along a specified route in the contact surface of the upper and lower workpieces, so that the workpieces are melted and combined. After three times of scanning, the large-spacing heterogeneous material can finally obtain a high-strength and high-quality welding joint.

The invention discloses a photoacoustic spectrum-confocal Raman spectrum multi-view-field high-dimensional imaging method and a photoacoustic spectrum-confocal Raman spectrum multi-view-field high-dimensional imaging device. Nanosecond pulse laser with adjustable wavelength is generated through a continuous spectrum nanosecond pulser and a narrow-band spectrum tuning module and cooperates with a microscopic detection module, a depth imaging module, a galvanometer system and an electric displacement table to obtain spatial three-dimensional data, a photoacoustic spectrum and a Raman spectrum under multiple view fields; shallow photoacoustic spectrum-Raman spectrum tomography and deep three-dimensional photoacoustic imaging are realized; correcting a photoacoustic spectrum quantitative error by using a spectrum decoupling algorithm, and fusing the multi-view-field data to generate multi-view-field high-dimensional photoacoustic spectrum-Raman spectrum data; high-dimensional data features are extracted based on a 3D convolution instance segmentation network, and quantitative analysis and spatial distribution visualization of blood oxygen, inflammatory factors and the like are achieved. According to the method, the limitation that substances are difficult to analyze in photoacoustic imaging is overcome, the contradiction between the imaging resolution and the penetration depth is solved, and an accurate analysis means is provided for diagnosis of diseases such as knee osteoarthritis and sepsis.

A collaborative seam tracking method based on laser line scanning sensing includes: scanning, by using a laser line scanning sensor, a weld seam to obtain an original sampling deviation value; coordinate converting the original sampling deviation value to obtain a converted sampling deviation value, and then obtaining a first converted sampling deviation coordinate based on a current position coordinate of a motion mechanism; in response to an absolute difference between the converted sampling deviation value and a position value of a corresponding projection point on a preset path is less than a processing range of a galvanometer, performing a seam tracking; in response to the absolute difference between the converted sampling deviation value and the position value of the corresponding projection point on the taught path is greater than or equal to the processing range, performing Hermite interpolation, thereby obtaining an interpolation function as a motion trajectory.

The invention relates to the technical field of modern precision machining and optical scanning, and discloses a motion control method and system of a laser galvanometer. The method comprises the steps that a real-time position signal is collected and preprocessed, and a filtered position signal is obtained; the deviation between the trajectory model and a preset trajectory model is calculated, when the deviation exceeds a threshold value, the trajectory model is identified as a complex trajectory segment, offset vector data is generated, and an offset compensation demand signal is generated accordingly; driving an instruction device in combination with historical data to obtain compensation parameters; when the deviation is lower than an updating threshold value, updating the trajectory model; a stable control signal is generated based on the optimization model and filtering signal prediction, and the environmental interference is calibrated and the signal smoothness is enhanced through the stable control signal; and finally, comparing the enhanced signal with the optimization model, and repeating the compensation process when the deviation exceeds the standard to obtain a final stable control signal. According to the method, through multi-level deviation processing and iterative optimization, the control precision and the anti-interference performance of the laser galvanometer in complex track movement are improved.

The invention provides a laser galvanometer intelligent control system and method based on big data, and belongs to the technical field of intelligent control systems. S2, data preprocessing; s3, feature extraction; s4, model training; s5, performing real-time prediction; s6, generating a control instruction; s7, executing a control instruction; and S8, performing feedback and optimization. High-precision closed-loop control over movement of the laser galvanometer can be achieved, the deviation between the actual movement state and the target movement state is effectively reduced, the laser machining precision is improved, and application scenes such as electronic chip fine machining with extremely high precision requirements are met.

The invention relates to the field of laser powder bed melting monitoring technology and laser spectrum detection, in particular to an LIBS (laser-induced breakdown spectroscopy) detection device and method for online monitoring nitrogen, hydrogen and oxygen elements in stainless steel prepared by LPBF (laser PBF), and the LIBS detection device comprises an LPBF printing unit, an LPBF laser unit, an LIBS element detection unit and a calculation control unit; the LIBS element detection unit generates pulse laser by using an Nd: YAG laser, guides the laser beam to the surface of a stainless steel sample through a beam splitter and a galvanometer, excites and generates plasma, acquires a plasma spectrum through a six-channel optical fiber spectrometer, controls the time sequence of laser emission and spectrum acquisition, and analyzes spectral data in real time; the concentration distribution of nitrogen, hydrogen and oxygen elements in the sample is detected, the printing parameters of the LPBF laser unit are dynamically adjusted according to the analysis result, and rapid and real-time online detection of the nitrogen, hydrogen and oxygen elements in the stainless steel sample in the printing process is achieved.

The invention provides a three-dimensional galvanometer correction method and laser processing equipment. The method comprises the steps of controlling a motion platform to move to a reference surface of a galvanometer assembly; determining a contour line of a circle with a preset value as a radius on a medium of the motion platform by taking the central point of the galvanometer assembly as a circle center; a plurality of first marking grids are marked on the contour line in the preset direction through laser, each first marking grid in each first marking grid corresponds to one deflection angle, and each first marking pattern corresponds to the position of one zoom lens; detecting each first marking grid based on a visual component so as to determine a first target position corresponding to the focal point of the laser from the positions of the zoom lens corresponding to the plurality of first marking patterns of each first marking grid; fitting the radius of the contour line and the first target positions corresponding to the plurality of first marking grids to obtain a first curve; and compensating the position of the zoom lens according to the first curve. By means of the method, the three-dimensional galvanometer can be accurately corrected.

The invention provides a subjective optometry prediction method combining wavefront aberration and optical signals. According to the method, eyeball wavefront aberration data are measured through a wavefront sensor, cornea, crystal and retina biological parameters are obtained by combining multi-view-field scanning of a galvanometer system, and after high-credibility data points are screened, a gradient refractive index eyeball three-dimensional model is constructed by adopting an NURBS algorithm; using finite element analysis to optimize cornea stress distribution, iteratively correcting the model through a deformation energy function, and dynamically compensating eyeball motion errors based on eye movement tracking data; and generating a multi-field-angle visual chart image through ray tracing simulation, and predicting a subjective optometry result in combination with an image quality evaluation algorithm. According to the method, high-precision modeling, dynamic error suppression and intelligent simulation technologies are fused, the optometry prediction accuracy, the personalized adaptation degree and the dynamic scene adaptability are remarkably improved, and an efficient and reliable solution is provided for refraction correction.

According to the switchable double-laser-head machining light path system and device, a three-dimensional galvanometer and a cutting head assembly are integrated into a machining head assembly, a light path switching mechanism is adopted, two dichroscopes are horizontally moved through a sliding table, selective light splitting is conducted on wavelength setting of the two dichroscopes, and therefore the machining precision of the two dichroscopes is improved. Rapid seamless switching and light path multiplexing between a three-dimensional galvanometer machining mode and a cutting head machining mode are achieved, it is ensured that the lens angle does not need to be adjusted again or light path alignment does not need to be conducted after light path switching, coaxial CCD monitoring is adopted, according to the wavelength setting characteristics of the two dichroscopes, the wavelength differentiation design is conducted on the first illumination light source and the second illumination light source, and therefore the machining efficiency is improved. According to the multi-axis moving platform, the same CCD camera is shared by two machining modes, high-precision real-time monitoring under the double machining modes is achieved, a closed-loop control basis is provided for the laser machining process, and meanwhile, the multi-axis moving platform is matched with the two rotary table assemblies, so that laser machining can be flexibly conducted on a curved-surface workpiece within a large-format range.

The invention provides a laser positioning method for improving gemstone cutting precision, and belongs to the technical field of gemstone cutting laser positioning. A gemstone crystal refractive index tensor model and a ray tracing algorithm are established to simulate a propagation path of light in a gemstone; a thermo-optic effect prediction model is adopted to predict a focus drift distance according to temperature distribution and laser power data and calculate wavefront predistortion phase distribution for compensation, and a zero-vibration input shaping filter is designed for a galvanometer scanning system to suppress residual vibration. A composite control strategy that feedforward control compensates inertia lag and feedback control corrects position errors is adopted to drive a galvanometer, the inherent frequency of a system is recognized through spectral analysis, and the scanning frequency is adjusted to avoid resonance. The technical problem that in the long-time machining process, due to the thermo-optic effect and vibration of a galvanometer scanning system, the laser focus point position generates accumulated drifting, and the cutting precision is reduced is solved.

The invention relates to the technical field of satellite laser communication, and discloses a laser communication double-end on-orbit calibration system and method, and the system comprises an A end and a B end which are in communication connection and have the same structure; the end B is a second laser communication terminal; the A end is a first laser communication terminal which comprises a main light path, and a transmitting branch, a receiving branch, a tracking branch and a calibration branch which are connected with the main light path; the main light path is composed of an A-end optical antenna, an A-end reflex reflector, an A-end fine tracking galvanometer, an A-end first spectroscope, an A-end second spectroscope, an A-end third spectroscope and an A-end emission galvanometer which are connected in sequence; the transmitting branch is connected with the A-end transmitting galvanometer; the receiving branch is connected with the A-end third spectroscope; the calibration branch is connected with the A-end second spectroscope; and the tracking branch is connected with the A-end first spectroscope. According to the invention, on-orbit receiving and transmitting coaxial calibration is carried out, calibration is carried out without the help of a ground end, and the efficiency is improved.

The invention relates to a laser cleaning path automatic planning method and a laser cleaning device. Three-dimensional information of a to-be-cleaned workpiece is obtained, a cleaning path is planned, a partition cleaning strategy of the to-be-cleaned workpiece is obtained, galvanometer adjusting information of laser cleaning equipment is configured, and the to-be-cleaned workpiece is cleaned according to the galvanometer adjusting information. The laser cleaning equipment is controlled to clean the to-be-cleaned workpiece according to the planned partition cleaning strategy, and the galvanometer is adjusted in real time based on the galvanometer adjustment information to adapt to the change of the surface shape of the to-be-cleaned workpiece; the device comprises a base, a position transfer unit realizes position movement of the device except the base, a three-dimensional scanning construction unit is arranged at the output end of the position transfer unit and is used for scanning a to-be-cleaned workpiece and constructing three-dimensional information of the workpiece, and finally a laser cleaning unit is used for performing laser cleaning on the to-be-cleaned workpiece. According to the method, the cleaning efficiency is improved, intelligent selection of cleaning paths and cleaning strategies is completed, redundancy and repetition of the cleaning paths are reduced, loopholes of cleaning work are reduced, and completeness and comprehensiveness of cleaning are ensured.

The invention discloses a processing system and method for real-time self-adaptive adjustment of galvanometer jitter based on movement speed, and the method comprises the steps: obtaining the current instantaneous speed of a galvanometer relative to a foil in real time in the foil cutting process, and automatically building a relation model between the instantaneous speed of the galvanometer and jitter parameters according to a machine learning method adopted in advance, dynamically adjusting jitter parameters of the galvanometer by using the trained neural network model; a new cutting path is generated according to the shaking parameters of the galvanometer after real-time adjustment, and the scanning speed of the galvanometer is adjusted according to the adjusted shaking parameters so as to meet the requirement of the new cutting path; and the galvanometer is adjusted according to the new cutting path and the new scanning speed, the output of the laser is controlled, and the galvanometer continues to run to complete the cutting operation of the foil. Based on the instantaneous movement speed of the galvanometer, jitter parameters of the galvanometer are adjusted in a real-time and self-adaptive mode, the flight cutting track is corrected, the stability and consistency of the cutting shape are ensured, and therefore the overall quality of a final product is improved.

The invention discloses a differential polarization confocal microscopic imaging system and method of a multi-focus channel, and relates to the technical field of optical microscopy. Comprising a light source emission module, a dichroscope (6), a two-dimensional galvanometer module, a scanning module, a sample acquisition module, a detection module and an imaging terminal (17). According to the invention, differential polarization imaging and a multi-focus channel confocal technology are combined, so that the imaging quality of the confocal microscopic system is further improved on the premise of ensuring the confocal imaging speed; meanwhile, differential imaging is introduced, so that the imaging contrast ratio can be greatly improved, and the confocal microscopic system can obtain a better imaging effect in the application field of thick tissue microscopic imaging.

The invention relates to laser communication, in particular to a non-rotating type space laser communication system and method based on a liquid crystal phase regulation and control device, and aims to overcome the defects that in the prior art, a liquid crystal spatial light modulator is small in deflection angle and small in transmitting and receiving aperture, and the requirements for the capturing and tracking range and aperture of space laser communication are difficult to meet. The non-rotation type space laser communication system based on the liquid crystal phase regulation and control device comprises an adjustable phase delayer, a liquid crystal polarization grating module, a beam shrinking module, a liquid crystal space light modulator, a fine tracking galvanometer, a light splitting module, a coarse tracking module, a fine tracking module, a communication module and a data processing module, according to the communication method based on the system, light beam deflection is carried out through the adjustable phase delayer, the liquid crystal polarization grating module, the liquid crystal spatial light modulator and the fine tracking galvanometer, a traditional mechanical rotary table is replaced, and high-precision adjustment is achieved.

The invention discloses a multi-light-spot batch 3D printing device and method, and belongs to the field of 3D printing, the device comprises at least one galvanometer scanning unit, and each galvanometer scanning unit is provided with a laser beam splitting unit; the laser beam splitting unit is used for splitting one laser beam into a plurality of laser beams so as to form a laser matrix, and the distance between adjacent laser beams in the laser matrix is adjusted; the galvanometer scanning unit is used for reflecting the laser matrix to the printing working face, the laser matrix scans on the printing working face by adjusting the reflection angle of the galvanometer scanning unit, and multiple parts are printed in batches. Under the condition that the number of the galvanometers and the number of the lasers are not increased, the printing speed of small parts can be increased, and the requirement for batch production is met.

The invention discloses a laser radar and a mobile device, the laser radar comprises a shell, a transmit-receive module, a galvanometer module, a light transmission element and a sealing shell, the transmit-receive module is accommodated in the shell and is used for generating probe light and receiving echo light, the galvanometer module comprises a galvanometer base and a galvanometer body, the galvanometer base is installed on the shell, the galvanometer body is installed on the galvanometer base, and the light transmission element is installed on the galvanometer base. The galvanometer body is used for reflecting detection light and echo light, the light-permeable light-passing element is located on the downstream of a light path of the galvanometer module in the propagation direction of the detection light, the sealing shell is connected with the galvanometer base and the light-passing element, the galvanometer base, the sealing shell and the light-passing element jointly define a sealing cavity, the galvanometer body is located in the sealing cavity, the sealing shell is provided with a light-permeable part, and the light-permeable part is located in the sealing cavity. The light transmitting part is used for allowing the detection light to pass through so that the detection light can be emitted to the galvanometer body, and the light transmitting part is located outside a view field formed by scanning of the detection light through the galvanometer body. According to the technical scheme, stray light in the laser radar can be effectively reduced.

The invention discloses a laser channel atmospheric turbulence fading real-time compensation device and method based on a galvanometer system, and the method comprises the steps: enabling an incident light beam to irradiate a transparent PCB integrated with a photodiode array after the incident light beam is focused through a convex lens, obtaining the light intensity distribution of a current light spot through the photodiode array, and transmitting the light intensity distribution to a signal processing unit; the signal processing unit coarsely adjusts the deviation direction of the light spots according to the received light intensity distribution data, and aligns the part with the strongest light intensity in the light spots to the end face of the optical fiber; and based on the roughly adjusted light spot deviation direction, the signal processing unit dynamically adjusts the deflection angle of the galvanometer by using a gradient descent method according to the power measurement value of the receiving coupling module, so that the fine adjustment of the light spot deviation direction is realized, and the receiving coupling power is maximized. The objective of receiving optical power maximization is achieved, optical design, electronic control and algorithm optimization are combined, and atmospheric turbulence compensation with high cost performance is achieved.

The invention discloses a conformal antenna component manufacturing system and method based on cross-scale space-time frequency shaping femtosecond laser, and belongs to the technical field of micro-nano machining. The system comprises an ultrafast laser excitation module, a laser pulse time / frequency shaping module, a pulse detection module, an online monitoring module and a focusing high-speed scanning galvanometer module. By means of the system, high-selectivity, large-breadth and three-dimensional precision machining of conformal antenna circuit patterns is achieved, and it is ensured that a substrate is not damaged. The femtosecond laser time-frequency shaping technology is combined in the machining process, layered scanning and accurate removal of the heterogeneous multilayer structure are achieved through an adjustable pulse sequence and a high-speed galvanometer system, and the problems that in the prior art, materials are damaged, and the size precision is low are solved. The device further integrates an on-line depth monitoring function, the machining efficiency and the forming quality are remarkably improved, and the device is suitable for high-precision patterning machining of complex curved surface heterogeneous thin film materials.

The invention relates to the field of welding, and particularly discloses a laser galvanometer system and a high-power laser scanning welding head. The laser galvanometer system comprises a mounting shell, a galvanometer mounting seat and a galvanometer system; the galvanometer mounting seat is mounted on the inner bottom surface of the mounting shell, a mounting cavity is formed in the bottom surface of the galvanometer mounting seat, and the galvanometer system is mounted in the galvanometer mounting seat; the galvanometer system comprises a first galvanometer, the first galvanometer comprises a first motor, a first lens bracket and a first lens, and the first lens bracket comprises a connecting part and a mounting part; the connecting part is connected to a first motor output shaft; the mounting part is connected to the side of the connecting part away from the first motor, the side of the mounting part is provided with a mounting groove for placing the side of the first lens, and the edge of one side of the first lens is adhered in the mounting groove; two protection tables are connected to the side face of the mounting part and located on the two sides of the mounting groove correspondingly. The two ends of the installation part are connected with two protrusions, and the two protrusions are located on the two sides of the installation groove respectively. The laser scanning welding head has the effect of solving the heat effect of the laser scanning welding head.

The invention discloses a three-dimensional curved surface pattern layering processing method based on parameterized segmentation, and aims to solve the problem of high-precision pattern processing on the surface of a curved surface by using a laser scanning galvanometer. The method comprises the following steps: firstly, importing a three-dimensional model, and carrying out parameterization processing to obtain a two-dimensional parameter domain; positioning a to-be-processed plane pattern in the two-dimensional parameter domain to form a complete two-dimensional geometric grid covering a pattern area, generating a three-dimensional pattern grid attached to a curved surface, and calculating a center normal vector of the three-dimensional pattern grid; then, generating an equidistant plane group on the surface of the curved surface, and calculating an intersection line of the plane and the three-dimensional pattern grid as a laser scanning track; and the five-axis linkage platform-galvanometer system is started for machining. Through the parameterization domain, distortion of curved surface pattern machining is effectively solved, machining uniformity is improved, and the method is particularly suitable for laser machining of large-scale or high-complexity curved surface patterns.

The invention discloses an ultrafast laser precision cutting method capable of removing burrs in parallel, which comprises the following steps: materials are conveyed to cutting positions of a first galvanometer system and a second galvanometer system, and the materials comprise a metal foil and a coating coated on the metal foil; determining a tab cutting total path and a linear cutting path in the tab cutting total path according to the tab specification parameters; the metal foil is pre-cut by the first galvanometer system along a linear cutting path; the metal foil is cut by a second galvanometer system along the tab cutting total path, and the pre-cutting path of the metal foil is cleaned; laser light sources of the first galvanometer system and the second galvanometer system are a nanosecond laser and an ultrafast laser respectively; the linear cutting path is located at the coating portion of the metal foil. By means of the method, the input cost of tab cutting equipment can be reduced, the phenomena of burrs and bead melting generated in the tab cutting process are reduced, high-quality tab cutting is achieved with low cost, and the battery performance and the yield are improved.

The invention relates to a super-resolution fluorescence lifetime microscopic imaging method and system based on pixel relocation. The method comprises the following steps: S1, carrying out multi-focus parallel scanning on a sample by using an acousto-optic deflector; s2, synchronously collecting a fluorescence intensity image and fluorescence lifetime data through an area array detector and a point detector; and S3, carrying out super-resolution reconstruction on the fluorescence intensity image based on a pixel relocation algorithm, and mapping fluorescence lifetime data to a reconstructed image to generate a super-resolution fluorescence lifetime microscopic image. According to the invention, an AOD is adopted to replace a scanning galvanometer in a traditional TCSPC-FLIM imaging system as a light beam scanner; addressing scanning of AOD, image acquisition of EMCCD and life data acquisition of PMT and TCSPC cards are closely linked by combining well-designed multiple paths of synchronizing signals, and fluorescence life data are distributed to each dot matrix through a later data processing method, so that organic combination of super-resolution and FLIM can be realized without complicated equipment, and SR-FLIM images of samples are obtained.