336 results about "Beam system" patented technology

The present application relates to the technical field of bridge construction, and in particular to a railway box girder drop system, including a longitudinal deviation correction mechanism, a transverse deviation correction mechanism, and a beam drop mechanism; a plurality of longitudinal deviation correction mechanisms are symmetrically distributed along the longitudinal direction of the bridge between the piers of the box girder to be dropped; a plurality of transverse deviation correction mechanisms are symmetrically distributed along the transverse direction of the bridge between the piers of the box girder to be dropped; the longitudinal deviation correction mechanism includes a first temporary pier, a first slide, a first slide shoe, and a plurality of first jacking devices arranged in sequence from bottom to top, the first slide is fixedly connected to the first temporary pier, and a plurality of first jacking devices are fixed along the transverse direction of the bridge and symmetrically distributed on the first slide shoe; the transverse deviation correction mechanism includes a second temporary pier, a second slide, a second slide shoe, and a plurality of second jacking devices arranged in sequence from bottom to top, the second slide is fixedly connected to the second temporary pier, and a plurality of second jacking devices are fixed along the longitudinal direction of the bridge and symmetrically distributed on the second slide shoe. Through the above arrangement, the accuracy of the box girder drop position can be improved.

The invention discloses a compact multipurpose proton beam system, belongs to the field of radiotherapy, and solves the problem that a treatment terminal of an existing proton beam system is single in type and not compact enough. The superconducting isochronous cyclotron system is connected to the two-way selection system through the beam adjusting system, the two-way selection system comprises a two-way dipole magnet and two branch selection systems, and the two branch selection systems are connected to the rear end of the two-way dipole magnet in parallel. The system also comprises a beam transport system, and the beam transport system is composed of a first treatment terminal section, a second treatment terminal section and a third treatment terminal section. One branch selection system is connected to the fixed experiment beam transport system through the first treatment terminal section, the other branch selection system is connected to the fixed pen-shaped beam transport system through the second treatment terminal section, the third treatment terminal section is a branch of the second treatment terminal section, and the third treatment terminal section is connected to the rotary beam transport system. According to the invention, the beam irradiation of the multi-type and multi-purpose treatment terminal is realized by utilizing the design of a bidirectional selection system.

The invention provides a three-coordinate radar reverse modeling-based penetration aircraft detected probability calculation method, relates to the technical field of three-coordinate radar reverse modeling, and provides a multipath propagation factor dynamic correction model and an adaptive clutter suppression method through reverse modeling ship-borne radar power distribution characteristics and an environment coupling effect. And the calculation precision of the detection probability in a complex electromagnetic environment is improved. Based on a directional diagram propagation factor quantization radar wave attenuation law, and in combination with a sub-beam system constant inversion technology, the dependence of a traditional model on confidential parameters is broken through, and high-reliability simulation based on public parameters is realized. Through pre-generation of a typical scene database and cubic spline interpolation, dynamic response of a penetration strategy is supported, a multi-radar networking cooperative detection correction model is introduced, and a global detection blind area is identified.

The invention relates to the technical field of performance lighting equipment, in particular to a double-shaft omni-directional steering unmanned aerial vehicle laser lamp and a control method thereof. The unmanned aerial vehicle laser lamp structure comprises a transmission device and a motor, the unmanned aerial vehicle laser lamp structure can rotate by 360 degrees along the X axis and the Y axis, magnetic fluid sealing rings are adopted for packaging, high waterproofness can be achieved, the unmanned aerial vehicle laser lamp is hung below a four-axis or six-axis unmanned aerial vehicle, a space light beam system capable of freely rotating is formed, all-dimensional irradiation is achieved, and the rich three-dimensional light beam effect is created. In addition, the flight control system of the unmanned aerial vehicle can be compatible with a small unmanned aerial vehicle performance control system, so that the unmanned aerial vehicle can be accurately integrated with other unmanned aerial vehicles and cooperate with formation performance. The visual level of unmanned aerial vehicle light show is improved, compared with traditional unmanned aerial vehicle laser equipment, the system can flexibly adjust the height and the angle, the defect that existing unmanned aerial vehicle air show lacks space light beams is effectively overcome, and a more dynamic and immersive light and shadow effect can be constructed in the air in combination with fine control.

The invention discloses a flexible finger friction contact collision dynamics simulation method based on an absolute node coordinate method, which comprises the following steps: simplifying a finger of a flexible manipulator into a connecting rod system, taking a tail end knuckle as a flexible beam for consideration, and carrying out unit division on the flexible beam system based on the absolute node coordinate method; a contact collision process is described by using an additional constraint method, meanwhile, switching of a viscous state and a sliding state is considered, a friction-containing flexible finger contact collision dynamic model is established, and a dynamic equation of a system is solved by adopting a double-circulation implicit integral algorithm; and obtaining a curve graph that the flexible finger tail end displacement changes along with time and the finger tail end contact force changes along with time. The invention provides a new frictional contact collision dynamic model for a flexible manipulator system, and provides more perfect data information and image information for researchers in the field.

Additive manufacturing systems and associated methods are disclosed herein. In some embodiments, the additive manufacturing system includes a build chamber that has an active build region, an energy beam system positioned to direct energy beams toward the active build area, and a controller operably coupled to the energy beam system. During an additive manufacturing process, the controller can control the energy beam system to execute a hybrid sintering process. For example, for a first region of a planned build object, the controller can operate the energy beam system in a continuous wave mode to generate a first energy beam to sinter powder in the first region. Then, for a second region, the controller can operate the energy beam system in a pulsed mode to generate a second energy beam with to sinter the second region.

The invention relates to an electron beam melting-ultrasonic atomization pulverizing system and method, belongs to the technical field of preparation of metal powder materials, and solves the problems that in an existing metal powder preparation technology, high-melting-point metal powder is difficult to prepare, and due to medium introduction, the powder purity is low, the cost is high, the sphericity degree of the powder is low, and the particle size is uncontrollable. The electron beam melting-ultrasonic atomization pulverizing system comprises an electron beam system, a vacuum system, a cooling system, an ultrasonic pulverizing system and a powder collecting system. By means of the system, powder preparation under the high-vacuum condition can be achieved, medium introduction is avoided, impurity removal is promoted, and low-oxygen ultra-pure powder can be obtained easily; the energy density of electron beams is high, and preparation of high-melting-point metal powder can be successfully achieved; by means of ultrasonic atomization, the metal powder is high in sphericity degree, controllable in particle size and few in defect, and the method is particularly suitable for preparing ultrapure powder of refractory metal (such as W, Mo and Ta) and active metal (such as Ti, Nb, Co and V).

Embodiments of systems, devices, and methods relate to initiating beam transport for an accelerator system. An example method includes increasing a bias voltage of one or more electrodes of the accelerator system to a first voltage level and extracting a charged particle beam from a beam source such that the beam is transported through the accelerator system. The beam has a beam current at a first beam current level that results in a first transient voltage drop of the accelerator system within a threshold. The method further includes increasing the beam current at a rate that results in one or more subsequent transient voltage drops of the accelerator system until the accelerator system has reached nominal conditions. The one or more subsequent transient voltage drops are within the threshold. Another example method includes biasing one or more electrodes of an accelerator system to a voltage level and selectively extracting, according to a duty cycle function, a charged particle beam from a beam source such that the charged particle beam is transported through the accelerator system. The duty cycle function can be linear or non-linear and can include a frequency f. The duty cycle function can include a variable pulse duration such that the variable pulse duration increases over time with each selective extraction of the charged particle beam.

The invention relates to the technical field of underwater construction, and provides an underwater engineering precise construction method, system and equipment. The underwater engineering precise construction method comprises the steps that an expected effect model corresponding to an underwater construction area is obtained; in the construction process, a region current situation model of a monitoring region is collected through a multi-beam system, and the monitoring region comprises a construction region; determining whether the regional current situation model is matched with the expected effect model; under the condition that the regional current situation model is not matched with the expected effect model, determining an abnormal position; and generating construction abnormity prompt information based on the abnormal position. By the adoption of the technical scheme, the construction process can be monitored in real time, and when it is monitored that abnormity exists in the construction process, prompting is conducted in time so as to guide constructors to adjust the construction process, so that the accuracy of underwater construction can be improved, the efficiency of underwater construction can be improved, and the construction period is shortened. And the underwater construction cost is reduced.

The utility model discloses a curtain lower beam system which comprises a U-shaped lower beam, two ends of the U-shaped lower beam are respectively provided with a lower beam end socket of an integrated structure, a cavity is arranged in the middle of the U-shaped lower beam, a balance rod is arranged in the cavity, the lower beam end sockets are connected with the U-shaped lower beam in a clamping mode, and the balance rod is connected with the lower beam end sockets. The outer surface of the U-shaped lower beam is coated with wrapping cloth. The lower beam end socket is directly matched with the balance rod, a round lower beam end socket is omitted, production cost can be saved, later assembling procedures are simplified, the wrapping cloth is arranged on the outer surface of the U-shaped lower beam, the color of the U-shaped lower beam is consistent with that of curtain fabric, and overall attractiveness is improved.

The invention provides an argon ion beam scanning electron microscope double-beam system and an in-situ sample analysis method, an electron optical lens barrel of the system generates a high-energy electron beam for scanning the surface of a sample for imaging; the ion optical lens cone generates a high-energy argon ion beam for sample surface polishing; the sample chamber is used for accommodating samples and providing a vacuum environment; the sample table is used for accurately controlling the position and angle of a sample; and the detector is used for collecting signals generated by interaction of the electron beam and the sample for imaging analysis. According to the invention, a sample transfer step is eliminated, so that the sample preparation and analysis efficiency is greatly improved; a millimeter-scale large-size sample can be treated, and a sample with a flat and smooth surface can be obtained; sample polishing and imaging are carried out in the same vacuum environment, so that sample pollution is reduced to the greatest extent, and the accuracy of an analysis result is improved; by combining argon ion beam polishing and scanning electron microscope imaging technologies, efficient, high-precision and in-situ analysis of the sample is realized, so that more comprehensive and more accurate microstructure information is obtained.

The invention relates to the technical field of building structure design, in particular to a building structure intelligent forward design system based on BIM and parameterization technologies. According to the technical scheme, a parameter-driven BIM initial model generator is included, a visual parameter input panel is created, a designer can conveniently set key parameters such as the number of layers, the layer height, the span and the function partition of a building, an intelligent algorithm is built in, a building mechanics knowledge base and classic case big data are combined, and a BIM initial model is generated; input parameters are quickly converted into a preliminary BIM building structure model, reasonable column grid arrangement, beam system model selection, model parameter association real-time linkage, modification at one position and automatic adaptation of related components are achieved, and an efficient forward design foundation is laid. The method has the advantages that the design efficiency can be remarkably improved, the cost can be remarkably reduced, the building structure performance can be remarkably improved, the cooperative work quality can be effectively improved, all professions can be matched more timely, and it is guaranteed that high-quality design results are produced.

The utility model discloses a catwalk bearing cable anchoring and adjusting device which is composed of three sets of catwalk bearing cable anchoring and adjusting bodies which are identical and arranged side by side, and each set of catwalk bearing cable anchoring and adjusting body comprises a bearing cable anchoring embedded part, an anchoring device, an adjusting device and a bearing cable open type cable joint. Finish-rolled deformed steel bars in the adjusting device are connected with the anchoring distribution beam system. In the adjusting process, load is applied through the jack, force is transmitted to the rear anchoring distribution beam, the catwalk bearing cable is driven to move, the jack is adjusted to change the stress state of the bearing cable, then the functions of releasing and tightening the catwalk bearing cable are achieved, and the effect of adjusting the line type of the catwalk bearing cable is achieved. And the anchoring function is achieved by connecting the concrete beam and the catwalk bearing cable. Anchoring and adjusting construction of the catwalk bearing cable are conducted synchronously, the construction progress is accelerated, and the construction cost is reduced. The catwalk load-bearing cable can be rapidly and stably anchored and adjusted, and the catwalk load-bearing cable anchoring device is high in practicability and wide in applicability.

The present invention provides an optical power amplification system and a control method. The optical power amplification system includes: a beam system for providing independent first and second seed laser beams; an optical switch disposed on the transmission optical path of the second seed laser beam; an optical power amplifier disposed at the output end of the beam system; and an optical switch control device electrically connected to the optical power amplifier and the optical switch. Wherein, the optical power amplifier feeds back the output power of the first seed laser beam. When the output power is less than a predetermined value, the optical switch control device controls the optical switch to quickly turn on, and the second seed laser beam is transmitted into the optical power amplifier.

The invention relates to the application field of a negative neutral beam ion source system in a magnetic confinement nuclear fusion Tokamak device, in particular to a supporting and adjusting structure and method for a beam source of a negative neutral beam system in a fusion device. According to the technical scheme, the device comprises a beam source device and a stainless steel flat plate base located below the beam source device, and further comprises a welding corrugated pipe which is fixedly installed at one end of the beam source device and used for connecting the beam source device with a bunching vacuum chamber. The beam source three-dimensional space adjusting function is achieved through the characteristic that the welding corrugated pipe is small in rigidity, the position of the beam source can be accurately adjusted through the three-dimensional jacking jack, and therefore the position of a beam spot of a beam can be accurately adjusted, the anion beam spot can be kept at the center of a target, and the problem that the beam spot of an ion beam in a negative neutral beam system in a fusion device is difficult to adjust is solved. And an acting point is provided for the three-dimensional jacking jack through the arc-shaped supporting piece, stress concentration is reduced, point discharge is prevented, and safety in the high-voltage environment is guaranteed.

A municipal bridge green belt drainage structure is used for solving the drainage problem of green belts on municipal bridges and pedestrian and non-motor vehicle lanes, is arranged in an area defined by a main beam system, a pedestrian and non-motor vehicle lane system and a motor vehicle lane system and comprises a green belt drainage structure system. The green belt drainage structure system is sequentially provided with a cultivation and planting soil layer, first water filtering geotextile, a gravel layer, second water filtering geotextile and a green belt drainage pipe from top to bottom, and the green belt drainage pipe is arranged at the lowest position of the green belt in the vertical direction of the main beam system. The drainage structure of the municipal bridge green belt has the advantages that the drainage pipe of the green belt and the drainage pipe of the main beam are mutually independent, the drainage is smooth, and the drainage problem of the bridge green belt can be effectively solved.

An additive manufacturing system may include an additive manufacturing machine and a control system. The additive manufacturing machine may include one or more irradiation devices respectively including a beam source configured to emit an energy beam, an optical assembly that has one or more optical elements configured to focus the energy beam emitted by the beam source, a beam source sensor configured to determine a beam source sensor value from a source measurement beam representative of the energy beam prior to the energy beam passing through one or more optical elements of the optical assembly, and an optics sensor configured to determine an optics sensor value from an optics measurement beam representative of the energy beam downstream from the one or more optical elements of the optical assembly. The control system may include an irradiation control module configured to provide one or more control commands to the additive manufacturing machine based at least in part on the beam source sensor value and / or based at least in part on the optics sensor value.

A particle beam system is disclosed, comprising a fixture for holding an object under investigation, a particle beam source, a lens for focusing the particle beam, a detector, and a cooling system for cooling the fixture. The cooling system includes a coolant passage in the fixture, a supply port, an outlet, a two-position changeover valve, a first connecting line linked to the coolant passage and the changeover valve, a second connecting line linked to the coolant passage and the changeover valve, and a cooler for cooling a portion of the first connecting line. In its first position, the changeover valve connects the supply port to the first connecting line and the outlet to the second connecting line; in its second position, it connects the supply port to the second connecting line and the outlet to the first connecting line.

This invention relates to the field of precision alignment technology, specifically to an astigmatic differential confocal alignment system and method capable of synchronous imaging. The astigmatic differential confocal alignment system includes: an astigmatic differential confocal optical path system and an imaging optical path system sharing the same objective lens; the astigmatic differential confocal optical path system includes a laser, a collimating and expanding beam system, a polarizing beam splitter cube, a quarter-wave plate, a long-pass filter, a short-pass dichroic mirror, an objective lens, a non-polarizing beam splitter cube, a plano-convex cylindrical lens, and two four-quadrant photodetectors connected in sequence; the imaging optical path system includes a visible light point source, a beam splitter, a short-pass dichroic mirror, an objective lens, a sleeve lens, and a camera connected in sequence; the two optical path systems are coaxial and synchronized. When the defocus error signal FES crosses zero, the camera synchronously acquires a clear morphological image of the surface of the sample under test, achieving synchronization of alignment and imaging.

The invention discloses a preparation method of a two-dimensional material transistor device for TEM in-situ electrical measurement, and the method comprises the steps: forming an electron beam exposure glue isolation layer in a device region through an electron beam exposure technology, and carrying out in-situ processing and deposition in combination with a two-beam system (FIB-SEM). A two-beam deposition system is used for directionally depositing a platinum (Pt) material, and a two-dimensional source / drain electrode of a two-dimensional material transistor device is longitudinally pulled, so that the two-dimensional source / drain electrode is subjected to TEM sample sheet extraction in two beams, and the visualization of the two-dimensional source / drain electrode is realized. And then, through an accurate traction and welding process, the electrode is connected with the special chip, so that in-situ electrical measurement of the device in a TEM environment is realized. According to the method, the intrinsic source-drain-gate structure of the two-dimensional FET device is effectively maintained, the problem of difficulty in electrode connection of the two-dimensional FET in traditional TEM sample preparation is solved, and a novel and reliable technical path is provided for two-dimensional material electricity-structure collaborative characterization.

The invention relates to a modularized collision impact test device and an installation test method.The modularized collision impact test device comprises a supporting structure, a hammerhead connecting and supporting mechanism, a tool fixing mechanism and a hammerhead driving mechanism, the supporting structure comprises a top frame mechanism, and multiple sets of supporting holes are formed in the top frame mechanism; the hammerhead connecting and supporting mechanism comprises a first rotating rod rotationally connected to the first group of supporting holes and a hammerhead fixed to the first rotating rod, the tool fixing mechanism comprises a plate frame beam system, the plate frame beam system is rotationally connected to the second group of supporting holes through a second connecting piece, and a plurality of strain measuring pieces are attached to the plate frame beam system; the hammerhead driving mechanism comprises a rotating driving piece, and the rotating driving piece is powered on to drive the first rotating rod to rotate so as to drive the hammerhead to rotate upwards in the first direction and then rotate downwards in the second direction to impact the plate frame beam system. According to the invention, plate frame beam systems or hammerheads of different specifications can be subjected to collision impact tests of different heights and different distances, the accuracy is high, and the practicability is strong.

A beam system for a screened enclosure that includes one piece support beams having an internal channel and three or more spline grooves on one or more exterior sides. The spline grooves are designed to accept and secure screen material. Inserts positionable within the interior channel of adjacent beams may provide increased structural support for larger openings in the screened enclosure. The inserts generally include a central pillar having angular caps attached to opposing lateral edges thereof so that an insert fits snugly within the interior channel of the support beam. The inserts may be secured within the support beams by fastening elements.

A multi-beam charged particle beam system and a method for operating the multi-beam charged particle beam system with higher precision are provided. This improvement relates to a multi-beam forming unit that has lower sensitivity to secondary electrons, scattered charged particles, and x-ray radiation. Thereby, a plurality of primary charged particle beamlets can be generated with higher precision and a longer lifespan of the multi-beam forming unit. The present system and method are applicable to improved inspection of samples, such as wafer or mask inspection.

The utility model relates to a hanging beam system of a telegraph pole crane. The hanging beam system comprises a hanging beam, a stand column, a connecting base, a suction cup device, a folding rod, a vacuum pump and an air valve. Wherein the hanging beam is horizontally arranged and is a hollow and closed square tube; the stand column is vertically installed on the hanging beam. The connecting base is pivoted to the stand column through a pin shaft, so that the connecting base can rotate up and down around the pin shaft; the suction cup device is installed on the connecting base and can rotate along with rotation of the connecting base so as to adjust the position of the suction cup device. Each stand column is correspondingly provided with a suction cup device. One end of the folding rod is installed on the hanging beam, the other end of the folding rod is installed on the connecting base, the folding rod can be folded along with rotation of the connecting base, and front-back deflection of the connecting base is avoided; the vacuum pump is mounted on the hanging beam and can pump out gas in the hanging beam; the air valve is connected between the hanging beam and the suction cup device through an air pipe. The sucker has the advantages of being simple in structure, light in self weight, adjustable in sucker angle and the like.

The utility model provides a special-shaped structure for supporting a D-shaped beam system, which comprises a plurality of groups of D-shaped beam supporting units for supporting the end parts of reinforced D-shaped beams on two sides of a track, each group of D-shaped beam supporting units comprises two supporting structures which are oppositely arranged, each supporting structure comprises two piles and a bracket which stretches across the tops of the two piles, one end of the bracket in each supporting structure is located between the two reinforcing D beams, the piles are located on the outer sides of the reinforcing D beams, the brackets are fixed to the tops of the piles, and the ends of the reinforcing D beam frames are arranged on the top faces of the brackets. The utility model has the beneficial effects that after improvement, the construction range can be far away from the railway, the construction is more convenient, the structure is firmer compared with the original fulcrum pile, the railway protection is better, the construction is more convenient, and by improving the construction method, the construction time is more abundant, and the construction period is greatly shortened.

The invention discloses a walking beam system and cold rolling equipment. The walking beam system comprises a first beam body, a second beam body, a first laser distance measuring sensor, a first laser reflecting plate, a second laser distance measuring sensor, a second laser reflecting plate and a controller. Wherein the controller is used for receiving first distance measurement data sent by the first laser distance measurement sensor and second distance measurement data sent by the second laser distance measurement sensor, and judging whether the first beam body and the second beam body have faults or not according to the first distance measurement data and the second distance measurement data. Therefore, by measuring the displacement of the beam body of the stepping beam in real time, the steel coil is prevented from toppling over, and the production safety is improved.

The utility model discloses a front upper and lower cross beam system suitable for a rear fulcrum hanging basket of a PC cable-stayed bridge with an ultra-wide variable-width Pi-shaped beam. Characterized in that; the system comprises a main truss, a front upper cross beam, a suspender and a front lower cross beam, the main truss is of a double-truss triangular truss structure and is transversely arranged to be tightly matched with the position of a pi-shaped beam main longitudinal rib, and a stable rigid supporting framework is formed. The front upper cross beam is erected between the two main trusses, a low-section steel beam is adopted to replace a traditional truss form, the suspenders are intensively arranged in corresponding areas of the main longitudinal ribs under the main trusses, a linear force transmission path of the main trusses, the suspenders and the main longitudinal ribs is formed, and the front lower cross beam is connected through the suspenders. According to the rear fulcrum hanging basket, the problems that due to the fact that the span of a front upper cross beam is too large, a traditional rear fulcrum hanging basket (1) is forced to adopt an ultrahigh-section profile steel or truss structure, the overall gravity center of the hanging basket moves upwards, and the stability is poor when the hanging basket walks in a widening section and loads are unbalanced are solved; and (2) the problems of non-uniform force transmission of the upper cross beam, fuzzy load force transmission path, poor overall rigidity performance and incapability of meeting the construction requirements of the ultra-wide and variable-width Pi-shaped main beam due to excessive suspenders are solved.

The utility model discloses a multi-target disc scanning robot for ion implantation, which belongs to the technical field of semiconductor manufacturing and comprises a scanning connecting seat, a scanning moving mechanism and a scanning overturning part which are connected in sequence. The scanning turnover part is rotatably connected to the scanning moving mechanism, more than two target discs are arranged on the scanning turnover part, and the more than two target discs are located on the same side of the rotating axis of the scanning turnover part. The scanning robot provided by the utility model can simultaneously hold a plurality of wafers for scanning injection, and can effectively shorten the average processing time of each wafer; meanwhile, the time interval for each point on the wafer to be in contact with the ion beam is also prolonged, so that more self-repairing time and more cooling time are provided; according to the scheme, the whole beam current system does not need to be changed, the device can be formed by modifying an existing single-chip microcomputer, implementation is easy, the process result and safe and reliable operation of equipment cannot be affected, and the device has extremely high application value.

The invention relates to the technical field of bridge construction, in particular to a positioning system and method for an arch bridge arch rib tie bar cable pipe. The positioning system comprises a receiving plumbing device, a prism is arranged on the receiving plumbing device, and the prism is used for positioning the elevation position of the center of the top opening of the arch rib tie bar cable pipe; the horizontal positioning assembly is used for positioning the plane posture of the arch rib tie bar cable pipe; the center of the laser range finder is located at the anchoring point of the bottom opening of the beam system rod cable pipe, and the laser range finder can measure the elevation value of the center of the top opening of the arch rib tie rod cable pipe and vertically project the anchoring point of the bottom opening of the beam system rod cable pipe to the horizontal positioning assembly. According to the method, the anchoring point of the beam system rod cable pipe is taken as a reference, elevation positioning of the to-be-installed tie rod cable pipe is carried out firstly, then plane positioning of the to-be-installed tie rod cable pipe is carried out, the problem of precise matching and positioning of the arch rib tie rod cable pipe and the beam system rod cable pipe in the narrow high-altitude environment is solved, the measurement precision is improved, the measurement device is fully utilized to carry out coarse positioning firstly and then precise matching, and the measurement accuracy is improved. And the measurement efficiency is greatly improved.

Systems and methods for associating phase tracking reference signal (PTRS) and demodulation reference signal (DMRS) ports for multi-beam physical uplink shared channel (PUSCH) transmissions are described herein. A base station may provide, to a user equipment (UE), PTRS and DMRS port associations for the multiple beams on which the PUSCH is transmitted. In some cases, a 2-bit downlink control information (DCI) field may be used to alternatively provide single beam or multiple beam PTRS and DMRS port associations to a UE. For non-codebook (NCB) based transmissions, the UE may alternatively determine PTRS and DMRS port associations for multiple beams independently of any PTRS and DMRS port association indicated in DCI.