44 results about "Beam transmission" patented technology

This invention discloses a low-energy beam transmission line, comprising: a single solenoid having a channel; a first movable component connected to the single solenoid to allow the single solenoid to move along the beam transmission direction; and a vacuum accelerating tube, with a first end connected to an ion source and a second end passing through the channel and connected to an accelerator. This invention's low-energy beam transmission line, by incorporating a movable single solenoid, increases the adjustable degrees of freedom of the solenoid, enabling dual-degree-of-freedom adjustment (spatial position and magnetic field strength), thus significantly improving beam matching capability.

This invention belongs to the field of fiber optic sensing technology, and discloses an integrated fiber optic sensor for seawater temperature, salinity, and depth based on a composite microstructure and its fabrication method. A single-mode fiber, a first coreless fiber, and a graded-index fiber are sequentially fused together to form a collimation structure for long-distance beam transmission. One end of the graded-index fiber is sequentially connected to a hollow-core fiber and a second coreless fiber. The core of the hollow-core fiber is filled with polydimethylsiloxane, located at the intersection of the cores of the graded-index fiber and the hollow-core fiber. The microsphere structure is divided into a cladding cavity and an air cavity from the outside to the inside. One end face of the second coreless fiber intersects with the air cavity and cladding cavity of the microsphere structure. Test results show that the integrated fiber optic sensor for seawater temperature, salinity, and depth based on the composite microstructure has the potential for integrated measurement of seawater temperature, salinity, and depth parameters.

This invention discloses a continuous-pulse column vector fiber laser cleaning system, comprising a laser generation module, a beam transmission and scanning module, and a motion control module. The laser generation module employs a continuous-pulse column vector laser, which integrates a control module capable of switching between continuous and pulsed output modes. It also integrates a polarization control system capable of freely switching between radial and angular polarization modes according to cleaning process requirements, and selecting to emit either a radially or angularly polarized beam. Within the reliable architecture of a time-sharing hybrid cleaning system, this laser cleaning system utilizes the unique spatial polarization and energy distribution characteristics of a column vector beam to replace the traditional fundamental mode Gaussian beam, achieving a significantly improved advanced laser cleaning system in terms of cleaning quality, process versatility, and overall efficiency.

This invention belongs to the field of precision scientific instruments and vacuum technology, and discloses a liquid ultrafast electron diffraction experimental station integrating a THz diagnostic structure. The station includes a vacuum chamber, a double-sided flange arranged upstream of the liquid film location along the electron beam transmission path, a position adjustment structure, a vacuum differential pipe, and a THz diagnostic structure. The double-sided flange is fixed between the vacuum pipe flange outside the vacuum chamber and the vacuum chamber itself. The position adjustment structure is axially and adjustablely fixed coaxially within the double-sided flange. The vacuum differential pipe is coaxially fixed within the position adjustment structure and passes through the sidewall of the vacuum chamber. The THz diagnostic structure is positioned between the vacuum differential pipe and the liquid film location. This invention integrates a vacuum differential system and a THz electron beam diagnostic system in situ within a single vacuum chamber, achieving synchronous compatibility between liquid-phase ultrafast electron diffraction and electron pulse time-domain diagnostics, ensuring the accuracy of time-resolved assessment of liquid-phase structure dynamics.

This application provides a high-acceptance gas charge stripper for a gas target, the main body of which is a vacuum differential structure. The stripping gas enters the stripping tube from the inlet pipe, and the charged particle beam achieves charge stripping through collision reactions as it passes through the stripping tube. Gas resistance tubes are installed at both ends of the stripping tube to restrict the stripping gas from entering the vacuum pipes at both ends of the vacuum chamber. The inner wall of the stripping tube has a variable aperture structure, with the aperture gradually increasing from the center to both ends, thereby achieving efficient charge exchange. The inner wall of the gas resistance tube also has a variable aperture structure, with the aperture gradually decreasing from inside the vacuum chamber to outside, thereby reducing the impact of the stripping gas on the vacuum level in the vacuum pipes on both sides. By setting the variable-diameter gas resistance tubes, the vacuum system can withstand a higher intake volume of stripping gas, allowing the aperture of the stripping tube to be designed to be larger, thus improving the beam acceptance of the gas charge stripper, increasing beam transmission efficiency, and ensuring the efficient and stable operation of the electrostatic tandem accelerator.

An optical fiber combining-coupled ultraviolet laser ablation system includes a laser, a light homogenizing assembly, and an optical fiber combining assembly. The laser is configured to emit laser light. The light homogenizing assembly is disposed on the emergent light path of the laser light. The optical fiber combining assembly is disposed on the emergent light path of the light homogenizing assembly. The light homogenizing assembly is used for performing beam flat-top shaping and beam superposition on the laser light to obtain a target light spot. The optical fiber combining assembly is used for performing multi-beam transmission on the target light spot.

This invention relates to a dual-band non-frequency-doubled high-power microwave oscillator with a coaxial drift cavity, comprising a cathode holder, a ring cathode, an anode outer cylinder, a first drift cavity, a first slow-wave structure, a second drift cavity, a second slow-wave structure, an output waveguide, an inner conductor, and an external guiding magnetic field. The entire structure is rotationally symmetrical about its central axis, and the components are arranged coaxially along the electron beam transmission direction, forming a complete electron beam transmission and microwave generation path. This invention uses a coaxial drift cavity to isolate the two slow-wave structures, achieving a reflection coefficient greater than 0.99 for the microwaves generated by the two slow-wave structures, exhibiting high reflection characteristics. This effectively isolates the two slow-wave structures from each other, avoiding beam-wave interaction interference. This overcomes the limitation of previous devices where the output frequency of dual-frequency microwaves was approximately a harmonic relationship, allowing for more flexible selection of the operating frequency.

The application discloses a random access method, a communication device, a communication system, a storage medium and a chip system, and belongs to the technical field of communication. The method comprises the following steps: a terminal device sends a random access request message through n beams according to the transmission power corresponding to a power count value, wherein n is an integer greater than or equal to 2; and in the case that the random access request message needs to be retransmitted, the power count value is adjusted according to the difference between the n beams required for this time of retransmission and the n beams used for the last transmission. By associating the beam usage history with the power control, the application can realize a differentiated retransmission strategy according to possible transmission failure reasons, so that the adaptation to the multi-beam transmission scene can be realized with low complexity, and the balance between the transmission success rate and the terminal device power consumption in the multi-beam transmission scene can be realized.

The present application provides a beam transmission method and related devices. The method includes: obtaining first information, where the first information includes at least one of target parameters related to a target object and environmental parameters in which the target object is located; transmitting a first beam to track the target object, where there is a corresponding relationship between the beam direction and time of the first beam, and the corresponding relationship is determined based on at least one of the target parameters and environmental parameters. By adopting this method, it is possible to avoid signaling overhead caused by frequent switching of the beam direction while ensuring the coverage of the beam for the target object.

This utility model discloses a high-precision testing instrument for small-sized glass, relating to the field of glass size testing technology. The instrument includes a worktable; the size testing component includes a connecting frame, with a first hydraulic rod fixedly connected inside the connecting frame, a gear frame fixedly connected to the output end of the first hydraulic rod, and a gear rotatably connected to the inner side of the gear frame; a rack is slidably connected to the upper right side of the connecting frame, a movable frame is bolted to the upper end of the rack, and a glass limiting frame is fixedly connected to the upper end of the movable frame; an "L"-shaped glass measuring ruler is fixedly connected to the upper end of the worktable. The first hydraulic rod drives the gear and rack transmission mechanism. Compared to the traditional technology requiring manual adjustment of the infrared rangefinder in each direction, this avoids the cumbersome step-by-step testing process, improving testing efficiency. Simultaneously, it accurately calculates distance through beam transmission time, and the data is directly synchronized to the display screen, reducing manual reading errors and improving testing accuracy.

This invention discloses a compact laser amplification system based on a spatial multiplexing structure. The system includes: a seed laser for providing seed signal light; a beam expander for expanding the signal light; a beam shaping device for controlling the size, spot shape, and intensity distribution of the signal light; a power amplifier system for amplifying the signal light; and a beam transmission encoding device for changing the transmission direction or polarization state of the signal light to encode and derive the number of amplifications, which, in conjunction with the power amplifier system, enables the signal light to be amplified and transmitted back and forth in the gain medium. This compact laser amplification system based on a spatial multiplexing structure achieves efficient extraction of pump energy within a small space through spatial multiplexing of the gain medium, providing a reliable technical path for miniaturized lasers.

The application discloses an integrated Y waveguide modulator chip for a fiber-optic gyroscope, which comprises a substrate, a lower cladding layer and a waveguide core layer, the waveguide core layer is divided into a silicon nitride material core layer section and a lithium niobate thin film material core layer section, the silicon nitride material core layer section is configured as a 2*2 beam splitter chip, the lithium niobate thin film material core layer section is configured as a double-beam transmission waveguide chip, and modulation electrodes are arranged on the lithium niobate thin film material core layer section; the silicon nitride material core layer section and the lithium niobate thin film material core layer section are designed in a stepped mode and are connected through BCB material, so that efficient end face coupling connection is directly realized. In addition, the silicon-based PLC is combined with a proton exchange process on a micron film platform, the silicon-based PLC has high process maturity and stable performance; the proton exchange waveguide has natural polarization ability, high signal transmission efficiency and high quality, and the combination of the two can realize a stable high-performance chip structure, and the overall chip does not have a complex mode spot conversion structure.

The utility model relates to a kind of diffraction waveguide light beam density regulation and control devices based on birefringence effect.The diffraction waveguide light beam density regulation and control devices based on birefringence effect include: waveguide substrate, made of material with birefringence effect;Coupling-in port, set in the incident plane of waveguide substrate, for coupling incident light;Coupling-out port, set in the exit plane of waveguide substrate, for coupling transmission light;Temperature regulation module, set in the side of waveguide substrate, for controlling the temperature of waveguide substrate, adjusting the propagation path of TE mode incident light and TM mode incident light inside waveguide substrate.The above-mentioned device utilizes the different diffraction angles of TE mode incident light and TM mode incident light due to different refractive indices, increases the propagation path width of light inside waveguide substrate, and improves the beam transmission density.Meanwhile, the temperature of waveguide substrate can be accurately controlled by temperature regulation module, to realize dark area distribution programmable and beam density dynamic optimization.

This disclosure provides a laser therapy device and its control method. The laser therapy device includes: a beam transmission module, a handpiece, and a needle-free injector; one end of the handpiece is threadedly connected to the light outlet of the beam transmission module; the other end of the handpiece is threadedly connected to the needle-free injector; the handpiece is used to receive a first laser beam emitted from the beam transmission module, to shape and focus the first laser beam, and to change the optical parameters of the first laser beam; the needle-free injector is used to receive a second laser beam emitted from the handpiece to drive the injection of a drug solution into the patient's skin tissue. This disclosure achieves a rotary connection by threading the beam transmission module, handpiece, and needle-free injector, resulting in a simple structure and minimalist appearance for the laser therapy device, making it convenient for the operator to use.

This invention relates to the field of laser surface engineering technology, specifically to a laser irradiation-induced coating cracking device and method. The device includes a laser generation and output unit, a beam transmission and dynamic focusing unit, an online monitoring and feedback unit, and a central control unit. In this invention, by collecting crack morphology data and thermophysical parameters of the coating surface, a repair mode or a prevention mode is intelligently switched. In repair mode, the beam is controlled to perform low-power defocus scanning along both sides of the crack to construct a preheating relaxation zone, followed by high-power focusing scanning along the crack center to induce dense remelting. In prevention mode, a grid-like laser shock treatment is performed to construct a compressive stress layer. By utilizing infrared and visual dual feedback to correct the laser output energy in real time, active control of coating stress and non-destructive healing of defects are achieved, solving the problem of coating peeling and thermal damage easily caused by traditional thermal repair, and improving the structural integrity and service life of precision coated components.

The application discloses an ultralow-energy monochromatic electron beam generation and transmission device, and relates to the technical field of electron optical instruments, which comprises the following units arranged in sequence along an electron beam transmission path: an electron generation unit for generating an initial electron beam; an injection lens unit for receiving the initial electron beam generated by the electron generation unit; a monochromator unit having an inlet and an outlet and being used for energy screening of the electron beam from the injection lens unit to reduce energy spread thereof; and a deceleration and focusing lens unit for receiving the monochromatized electron beam output from the outlet of the monochromator unit. The device can output an ultralow-energy electron beam with a continuously adjustable energy of 0 eV to 5 eV through the cooperative work of the electron generation unit, the injection lens unit, the monochromator unit and the deceleration and focusing lens unit, and the energy spread is better than 90 meV, thereby improving beam monochromaticity and transmission efficiency.

This invention discloses a simplified U-shaped beam inverter, relating to the field of high-power laser technology. It includes a collimating lens (102), a right-angle mirror, an electro-optic switch (105), and a focusing lens (106). The right-angle mirror consists only of a first reflecting mirror surface (103) and a second reflecting mirror surface (104) that are perpendicular to each other, both of which form a 45° angle with the beam transmission direction. The entire right-angle mirror is rotated 45° about the beam transmission direction to simultaneously achieve a 90° symmetrical rotation of the near-field wavefront and polarization state of the beam. The beam inverter is placed directly behind the filter aperture array plate (101), eliminating the need for additional reflecting mirrors or wedge mirrors to guide the beam into and out of the main optical path. By rotating the entire right-angle mirror by 45°, this invention enables a simplified structure with only two reflecting surfaces to have wavefront rotation functionality. This allows the entire inverter module to be directly integrated into a sealed optical path, significantly simplifying the structure, reducing the number of optical components, improving system cleanliness and damage resistance while maintaining functional integrity. It is suitable for high-power laser amplification systems.

The present application relates to the technical field of pest monitoring and prevention, and particularly relates to a multi-light-path infrared opposite-shooting triggering device and method of a buried termite monitoring equipment. The method comprises the following steps: sensing the condensation water vapor condition in a monitoring cabin to control the preset dehumidification brush to sweep water droplets and condensation; identifying the light path state between an infrared transmitting end and an infrared receiving end in an infrared opposite-shooting triggering module, and establishing an infrared light path reference signal according to the light path state; controlling the infrared transmitting end to output light signals to form a plurality of light paths that pass through the necessary cross section of the monitoring cabin; the infrared receiving end synchronously receives the light signals of the corresponding light paths and performs signal preprocessing to obtain light path infrared detection data; and the infrared light path reference signal is used to detect the light path blocking features in the light path infrared detection data to identify effective termite passing events. The present application helps to reduce manual inspection and maintenance frequency, reduce operation and maintenance cost, and improve the reliability of termite monitoring.

Various aspects of the present disclosure relate to inserting beam switching gaps between beam transmissions. A network equipment (NE) is configured to determine a number of empty symbols to insert between contiguous transmissions to a user equipment (UE) based on a subcarrier spacing, wherein the contiguous transmissions are scheduled on different beams; insert the determined number of empty symbols as a gap between the contiguous transmissions; and indicate the number of empty symbols to the UE.

Provided in the present invention are a wireless charging system for a humanoid robot, and a charging method therefor. The charging system comprises a wireless charging mat consisting of a base mat, ferrites, wireless electromagnetic flux beam transmitting coils, pressure sensors, photoelectric sensors and visual beacons; and a vision camera and a wireless electromagnetic flux beam receiving converter which are arranged on a humanoid robot. The charging system further comprises a wireless communication server and a processor. When a humanoid robot is located on the wireless charging mat, the pressure sensors, the photoelectric sensors and the vision camera correspondingly acquire the real-time pressure, position and posture of the humanoid robot on the wireless charging mat, and information of a rechargeable battery of the humanoid robot, and after processing such information, the processor controls the switching, intensity and direction of electromagnetic current beam transmission for at least one wireless electromagnetic flux beam transmission unit which consists of a wireless electromagnetic flux beam transmitting coil and a ferrite and is near the wireless electromagnetic flux beam receiving converter, thereby realizing dynamic wireless charging under full operating conditions for the humanoid robot during standing or traveling operations.

The invention discloses a maximum transmission efficiency beam forming method based on amplitude constraint and quantization adaptation, which solves the problems of low efficiency of a power amplifier, large quantization error and difficulty in considering multi-mode performance indexes in a phased array transmission system in the existing digital beam forming technology. The method belongs to the technical field of array signal processing, radar systems and wireless communication. The method comprises the steps that a mathematical optimization model for digital beam forming is established, the model takes a beam forming performance index as a target function, constraint conditions are introduced, the constraint conditions comprise a hard constraint condition of single-channel amplitude and a service mode adaptation constraint condition, and an optimization problem is determined; the hard constraint condition is used for limiting the complex weight amplitude of a single channel in the array not to exceed a peak value allowed by physical hardware; solving the optimization problem by adopting an alternating direction multiplier method to obtain optimal complex weights of all channels; and mapping the complex weights of all channels into discrete amplitude-phase control codes to drive phased array hardware to execute beam transmission.

The present application relates to the technical field of high-power millimeter wave, and particularly relates to a high-power millimeter wave quasi-optical matching unit. The technical scheme comprises a matching unit body, corrugated circular waveguides and circular waveguides are arranged on the two sides of the unit body respectively, the matching unit body comprises an input window, a phase correction mirror, an output window, a support adjusting assembly and a plurality of load porcelain tubes, the phase correction mirror comprises a reflecting mirror one and a reflecting mirror two, the phase correction mirror is designed by using an adaptive optimization iterative algorithm, efficient conversion of the high-power gyrotron quasi-Gaussian mode beam to a TEM11 mode beam is realized, energy utilization is improved, and beam transmission indexes are guaranteed; six support adjusting assemblies are arranged, the mirror and the radiation inlet position can be finely adjusted, process errors and beam deviations can be adapted, system adaptability and fault tolerance are improved, and output beam parameter stability is ensured.

The application belongs to the technical field of wireless communication security and signal processing, and discloses a high-reliability device authentication method based on antenna array error characteristics and double-beam transmission, which comprises the following steps: 1, constructing a double-beam, wherein signals received by a user equipment are transmitted through the double-beam; 2, actively tracking the double-beam and adjusting the direction of the double-beam in real time; 3, modeling a statistical analysis model of a radiation mode; 4, defining a radiation mode characteristic extraction target, completing characteristic extraction, and calculating gain error values, phase error values and position error values; 5, calculating signal energy, comparing the signal energy with a preset threshold as an energy detection statistical quantity, judging the legitimacy of a signal source, and completing device authentication. The authentication scheme provided by the application can effectively cope with the influence of array errors, thereby providing a reliable and efficient authentication solution for a millimeter wave communication system and helping to enhance the security of a communication link.

The application relates to the technical field of particle acceleration, and particularly discloses a high-repetition nanosecond beam pulsing system and method, wherein the high-repetition nanosecond beam pulsing system comprises, in sequence along a beam transmission direction, a direct current ion source, a low-energy beam transmission section, a radio frequency quadrupole field accelerator, a high-energy beam transmission section and a target chamber, adopts a three-stage structure of 'front-end pulsing + middle-stage acceleration + rear-end purification', and is helpful to stably realize high-repetition, nanosecond narrow pulse width output; through pre-chopping and post-bunching, the pulse width is ensured, and invalid particles are reduced to enter a subsequent acceleration channel; the working frequency of the radio frequency chopper is half of the target pulse repetition frequency, the difficulty of synchronous control can be reduced, time sequence accuracy and phase synchronization can be ensured, beam loss and phase disorder can be avoided, pulse time sequence consistency can be ensured, and beam utilization rate can be improved; and the high-repetition nanosecond beam pulsing is stably ensured.

This invention discloses a digital twin experimental system and testing method for dynamic target firing using high-repetition-rate lasers. The system includes a high-fidelity multiphysics model cluster, a virtual diagnostic module, a data-driven interface, a simulation engine and scheduler, and a visualization and analysis platform. The model cluster includes a target flight dynamics model, a beam transmission and control model, and a beam-target interaction physical model. The data-driven interface supports bidirectional data interaction between the digital twin system and the physical target firing system. The virtual diagnostic module outputs simulation data comparable to that of the physical system. This invention possesses system-level simulation capabilities that integrate the entire chain of "target injection – trajectory measurement – ​​beam control – interaction – physical results," and can be used for virtual testing of control strategies, performance prediction of novel target components, system fault prediction and health management, significantly reducing experimental costs and risks, and accelerating research and development iterations.

This invention relates to the field of ion source technology and discloses a transmission system for a small negative high-voltage neutron source. The transmission system includes a transmission tube, a plasma electrode, an extraction electrode, a Helmholtz coil, and an aperture. The transmission tube has a vacuum channel, and the plasma electrode and the extraction electrode are located inside the vacuum channel, downstream of the plasma electrode in the beam transmission direction. The Helmholtz coil is located outside the transmission tube. This transmission system can overcome the technical problem of how to achieve 100 mA beam transmission and beam homogenization within a limited structural size for a small negative high-voltage neutron source. The Helmholtz coil and aperture can effectively suppress the space charge effect of the ion source, enhance the beam transmission efficiency, and improve beam homogenization. Simultaneously, it can reduce the target surface heat load, improve neutron yield, and increase the target's service safety and lifespan.

This invention discloses a multi-dimensional joint control method for electromagnetic beams based on anisotropic holographic metasurfaces. It aims to address the shortcomings of existing multi-beam multi-dimensional control capabilities and the problems of inter-beam coupling and interference. The method includes: 1) constructing a target field according to the requirements of the actual application scenario, selecting a feed source, and determining its excitation reference field; 2) calculating the metasurface impedance components using tensor holography theory based on the target field and reference field to complete the physical structure design; 3) introducing a fully polarized modulation matrix into the target field expression and adding power allocation coefficients for beams of different polarizations to achieve joint control of arbitrary polarization and different energy ratios; 4) introducing a spatial multiplexing strategy into the beam field to jointly optimize the propagation direction and initial radiation position of different beams; and simultaneously combining polarization isolation and amplitude-phase modulation to achieve stable multi-beam transmission. This invention can effectively improve the anti-interference capability and energy utilization of multi-beam transmission, meeting the requirements of system applications.

The application discloses a beam sending method and device, a base station, a terminal and a storage medium. The method comprises the following steps: a base station sends a first part of SSB beams of a first cell or does not send SSB beams of the first cell; in the case of meeting a set condition or in the case of meeting set time information and / or frequency domain information, SSB beams of the first cell are activated and / or sent; the activated and / or sent SSB beams are part or all of the other SSB beams in the case of having sent SSB beams, or are all or part of the SSB beams of the first cell in the case of not sending SSB beams; wherein the SSB beams of the first cell are divided into at least two parts; and the set time information and / or frequency domain information is configured by a network in advance through signaling.

The present application relates to a kind of high-efficiency heat dissipation neutron target device for electron accelerator boron neutron capture therapy, it includes: electron beam control system, beam transmission vacuum pipeline, heavy water chamber, composite target, neutron beam reflector, shielding body and neutron beam slowing shaping body, wherein, electron beam control system is expanded to beam or the way of electron beam scanning is expanded to beam cross-sectional area;Beam transmission vacuum pipeline small diameter end is connected to the connecting flange of electron accelerator beam outlet;Heavy water chamber contains circulating heavy water;Composite target includes X-ray conversion target and high-efficiency heat exchange base, and the side of high-efficiency heat exchange base facing heavy water is provided with cooling array flow-through heavy water, increase the area of contact with circulating heavy water, increase the heat dissipation efficiency;Neutron beam reflector reflects the neutron emitted in different directions to the predetermined neutron beam exit;Shielding body, neutron beam is collimated to the shape and size required for treatment;Neutron beam slowing shaping body carries out neutron beam in exit slow spectrum shape optimization.

Embodiments of the present application provide a beam sending method, a storage medium, an electronic device and a product, the method comprising: a base station sending a beam to a target user through a first type of relay panel and a second type of relay panel; wherein the first type of relay panel is used to generate a first beam, the second type of relay panel is used to generate a second beam, and the codebook switching delay of the first type of relay panel is less than the codebook switching delay of the second type of relay panel, and the coverage range of the first beam is less than the coverage range of the second beam. The problem of unstable signal and discontinuous coverage in the related art in a complex environment is solved, the technical effect of ensuring the stability and continuous coverage of the signal in the complex environment is achieved, and the cost and power consumption are reduced.