116 results about "Stripping (fiber)" patented technology

The invention belongs to the technical field of mode field adapter manufacturing, and discloses a high-stripping-ratio mode field adapter manufacturing method which comprises the following steps: providing a to-be-packaged optical fiber formed by at least performing cladding stripping, tapering and welding on an optical fiber I and an optical fiber II; a to-be-packaged optical fiber is placed in a groove-shaped shell provided with positioning pieces, the two positioning pieces are located at the two ends of the groove-shaped shell respectively, positioning grooves distributed in the axial direction are formed in the positioning pieces, and the two ends of the to-be-packaged optical fiber are placed in the positioning grooves of the positioning pieces respectively and covered and fixed by first glue; and the to-be-packaged optical fiber between the two positioning pieces is encapsulated by using second glue of which the refractive index is greater than the refractive index of the optical fiber cladding. According to the optical fiber mode field adapter, the packaging difficulty is reduced, the effect of cleanly stripping the cladding light is achieved, and the manufacturing time of the optical fiber mode field adapter with the cladding power stripping function is shortened.

The invention relates to a multi-element solid waste treatment method and a process for preparing self-compacting low-carbon ultra-high performance concrete by using the multi-element solid waste treatment method, and a self-compacting low-carbon ultra-high performance concrete system is constructed by using a multi-element solid waste synergistic utilization and material modification technology. The distribution of solid wastes with different particle sizes is accurately regulated and controlled by adopting a particle grading optimization model, and performance improvement is realized by combining multi-dimensional material activation and modification. A three-step modification process of high-temperature carbonization pore-forming, acid pickling activation and silane coupling is carried out on the superfine fly ash to form the admixture with both activity and interface enhancement effect; and an electrochemical stripping and microbial mineralization synergistic activation technology is innovatively adopted for the lithium slag, so that the potential activity is effectively excited. The fiber surface is modified through plasma etching and chemical grafting, a multi-scale hybrid fiber reinforcement is prepared in cooperation with an in-situ composite spinning technology, the material toughness is remarkably improved, meanwhile, the problems that ultra-high performance concrete is high in raw material cost, large in carbon emission and large in shrinkage are solved, and therefore the self-compacting low-carbon ultra-high performance concrete is obtained.

The invention discloses an optical fiber full-automatic welding method and system. The welding method comprises the following steps that S1, two optical fibers are clamped, so that the two optical fibers are arranged reversely, and at the moment, the two optical fibers are located at initial positions; s2, respectively stripping the coating layers of the two optical fibers, and cleaning the stripping areas of the two optical fibers; s3, the stripping areas of the two optical fibers are rubbed in a sliding mode, so that the optical fibers are broken, and then a flat welding end face is formed; and S4, controlling the two optical fibers with the flat welding end surfaces to reach a target position, enabling the welding end surfaces of the two optical fibers to be aligned, and sequentially performing welding and coating operation on the two optical fibers so as to splice the two optical fibers into one optical fiber. Through the mode, the fusion splicing method provided by the invention can realize full-automatic stripping, cleaning, cutting, fusion splicing and coating operation of the optical fiber, and is matched with a fusion splicing system, so that the optical fiber processing efficiency is greatly improved, the quality consistency and reliability of the processed optical fiber are relatively high, and the production cost is greatly reduced.

The invention relates to a preparation method of a continuous self-supporting electrostatic spinning nanofiber membrane, which is characterized by comprising the following steps: S1, preparing a polymer and the like into a to-be-spun solution, and putting the to-be-spun solution into a liquid pushing system; s2, the base material is arranged on a conveying device, and nanofibers are received; s3, adjusting the voltage and the rotating speed of the transmission device to a proper interval; s4, the drying unit starts to dry and remove the solvent of the base material and the nanofiber membrane; and S5, after passing through the stripping unit, the fiber membranes are collected by the winding unit. According to the method, the function of processing the composite nanofiber membrane material is realized by utilizing a set of technological process, and synchronous stripping of the nanofiber membrane and the base material is completed; and meanwhile, the recycled base material can be repeatedly used, so that the production cost is reduced.

The invention provides an optical fiber coating layer stripping device and a coating stripping method thereof.The optical fiber coating layer stripping device comprises a cutting assembly and two optical fiber rotating assemblies, the two optical fiber rotating assemblies are arranged in the X horizontal direction, a cutting station is arranged between the two optical fiber rotating assemblies, and each optical fiber rotating assembly comprises a rotating module and a tensioning module; the two ends of the to-be-stripped optical fiber are fixed on the fiber clamping devices on the two sides respectively, during stripping, the position of the sliding block on one side can be limited through the rotating block, limitation is relieved through the sliding block on the other side, the to-be-stripped optical fiber is kept tight through the elastic piece, and then a coating layer is cut through the blade under the condition that proper tension is kept tight. Through movement in the X horizontal direction and conversion of the angle of the cutter, bidirectional cutter feeding is realized, through rotation of the fiber clamping device, multiple stripping of the optical fiber is realized without re-clamping, and the tangent planes at the two ends can be processed into regular cones or polygonal cones.

The invention provides an optical fiber stripping and cutting device, and belongs to the technical field of optical fiber processing, and the optical fiber stripping and cutting device comprises a three-axis moving platform and an optical fiber clamp. A stripping cutter is installed on the three-axis moving platform and extends in the first direction, and a cutting cutter is arranged at the end, away from the three-axis moving platform, of the stripping cutter in the first direction. The optical fiber clamp is configured to clamp an optical fiber so that the optical fiber can extend in the second direction, and the optical fiber clamp is suitable for rotating around a rotating shaft parallel to the second direction so as to drive the optical fiber to rotate; wherein the second direction is perpendicular to the first direction; and the three-axis moving platform is configured to drive the stripping cutter and the cutting cutter to move so as to strip and / or cut the optical fiber. According to the optical fiber stripping and cutting device provided by the embodiment of the invention, an optical fiber stripping function and an optical fiber cutting function can be integrated on the same device, and the optical fiber does not need to be repeatedly clamped in the continuous operation process of stripping and cutting, so that the production efficiency is improved.

The invention discloses a laser cutting machine tool security early warning system based on multi-parameter analysis, which relates to the technical field of laser cutting equipment and comprises a front-end sensing layer, a core processing layer and an early warning distribution layer, the front-end differential conditioning circuit is matched with the electric-optical-electric optical fiber transmission link, a high-frequency radiation path of the laser generator and the servo motor is cut off in a physical layer, millisecond-level real-time stripping of dynamic electromagnetic noise is achieved, the problem of weak sensing signal distortion is fundamentally solved, and the detection precision is improved. And meanwhile, the characteristic frequency of the servo motor is stripped in combination with variational mode decomposition, so that the reconstructed monitoring signal has an extremely high signal-to-noise ratio, the crossing from simple early warning to intelligent diagnosis is realized through collaborative analysis of current, vibration and optical data, the risk of mistaken shutdown caused by interference is greatly reduced, the machining continuity is guaranteed, and the working efficiency is improved. And the data transmission delay is greatly reduced, and the security of the equipment is protected to the greatest extent in cooperation with the multi-stage synchronous notification of the early warning distribution layer.

The present invention discloses a fiber stripping device for a fiber optic self-monitoring FRP rod, belonging to the field of intelligent structural materials, aiming to solve the problem that it is difficult to quickly strip the optical fiber of the existing thermoplastic tight-sheath fiber optic self-monitoring FRP rod under complex engineering conditions. It includes a heating module, a circumferential cutting and bending module, and a temperature control power supply module. The fiber optic self-monitoring FRP rod is inserted into the heating module from the tail end and passes through the circumferential cutting and bending module. The heating module heats the fiber optic self-monitoring FRP rod, and then the circumferential cutting and bending module circumferentially cuts and breaks the FRP layer to strip the FRP layer. The heating module enables the thermoplastic tight-sheath layer to reach the melting temperature, thereby realizing the extraction and stripping of the optical fiber from the thermoplastic tight-sheath layer. This device has fast operation, realizes the circumferential cutting, bending, and fiber extraction and stripping of the fiber optic self-monitoring FRP rod while heating, and shortens the operation time.

The invention discloses optical fiber coating layer stripping and optical fiber cutting integrated equipment, which comprises a bottom plate, and further comprises a clamp unit arranged at the upper end of the bottom plate and used for clamping an optical fiber piece; the tensioning and reversing unit comprises a tensioning assembly for straightening the optical fiber part and a steering assembly which is arranged at one end, opposite to the clamp unit, of the tensioning assembly and is used for steering the optical fiber part; and a laser unit. After the steering assembly is rotated by 180 degrees, the steering assembly drives the optical fiber part to rotate by 180 degrees, so that the coating layer of the optical fiber part originally located in the backlight area is ablated after being switched to face laser, in the process, the clamp unit is pulled again, and on the premise that the optical fiber part is straightened, the coating layer stripping area of the optical fiber part can extend again; the stripping area of the optical fiber piece can form a rotation area, a fiber core is prevented from being scratched in the cutting process, and the moving track of the optical fiber piece is always kept straight in the stripping process.

The invention discloses a high-power cladding online power stripping protection device and method, and relates to the technical field of optical fiber laser devices, the high-power cladding online power stripping protection device comprises at least one protection shell, the at least one protection shell is of a semi-enclosed structure, and the minimum size of an inner cavity of the at least one protection shell or an inner cavity formed by splicing multiple protection shells is larger than the outer diameter of a target optical fiber. The width of the notch of the protective shell is larger than the outer diameter of the target optical fiber, so that the target optical fiber can enter the inner cavity of the protective shell through the notch, the protective shell is further arranged outside the target optical fiber in a sleeving mode, and the two ends of the protective shell are fixedly connected to the two ends of the microstructure area of the target optical fiber respectively. According to the invention, the application scene and the operation convenience of the high-power cladding power stripper can be improved, online stripping is realized, the operation is convenient, no welding point exists, the limitation of the length is avoided, and the defect that the welding point and the length are limited when offline manufacturing is required in the application process of an axial sleeving method can be overcome.

The utility model belongs to the technical field of optical fiber stripping, especially relates to a stripping device. A kind of stripping device, comprising: bottom plate;Positioning mechanism, slidingly set on the bottom plate, for positioning to be stripped optical cable;Positioning groove is opened in the positioning mechanism, to place and fix the optical cable to be stripped;Stripping mechanism, fixedly set on the bottom plate, for mechanical stripping optical fiber coating;Heating groove is opened in the stripping mechanism, for accommodating optical fiber and providing heating area;Heating mechanism, set in the inside of the stripping mechanism, and provide heat source for the heating groove, for the optical fiber coating in the heating groove is heated and softened;Wherein, the positioning mechanism can be relative to the stripping mechanism on the bottom plate along optical fiber axial sliding, to realize the automatic or semi-automatic stripping of optical fiber coating layer.

The application provides a stripping method and stripping equipment for an optical fiber inlaid in a carbon fiber composite mandrel, and belongs to the technical field of wire stripping. The equipment comprises a heating device, a peeling device and a pressing device; the heating device is used for surface heating treatment, the peeling device is used for stripping an outer protective layer, and the pressing device is used for applying radial pressure to a stripping treatment area. The stripping method and stripping equipment for the optical fiber inlaid in the carbon fiber composite mandrel can adopt different removal methods according to the properties of different layers of the carbon fiber composite mandrel, avoid the problem that the cutting depth is difficult to control when a single cutting method is adopted, and will not cause the problems of damaging the optical fiber or insufficient stripping. The optical fiber can be fully and completely separated out, the stripping success rate is high, effective connection with an external monitoring device can be realized, and the reliability of monitoring is ensured.

This utility model discloses a tight-buffered optical cable stripper. It mainly solves the problems of easily breaking optical fibers, difficulty in stripping, and low stripping efficiency when using existing ordinary wire strippers to strip the optical cable sheath. Its features include: a guide member (3) longitudinally located at the center of the upper end face of the clamp base (1); an optical cable insertion slot (4) longitudinally located at the lower end of the guide member (3); a strip-shaped hole (5) aligned with and communicating with the optical cable insertion slot (4) on the upper left end of the guide member (3); and a longitudinal cutter (6) and a transverse cutter (7) on the clamp handle (2). This utility model features a longitudinal cutter, which can cut the sheath of the stripped section longitudinally, effectively reducing the bonding force between the sheath and the optical fiber. The sheath is easily stripped without damaging the optical fiber. The circumferential cutting and longitudinal cutting of the outer sheath of the optical fiber are completed in one operation. It has a simple structure, is easy to use, and has high stripping efficiency.

The utility model discloses a fiber stripping control circuit and automatic fiber stripping equipment, and relates to the technical field of optical fiber processing, the fiber stripping control circuit comprises a motor driving module, a first monitoring module and a second monitoring module, the motor driving module comprises an adjusting circuit and a driving motor, the adjusting circuit is electrically connected with the adjusting circuit and the driving motor, and the driving motor is electrically connected with the first monitoring module. The driving motor is used for driving the optical fiber to rotate or the blade to move; the first monitoring module is connected with the adjusting circuit; the first monitoring module is used for acquiring a limiting state signal of the driving motor; the second monitoring module is electrically connected with the adjusting circuit; the second monitoring module is used for acquiring a magnetic field change signal of the driving motor; the adjusting circuit is used for adjusting output driving parameters of the adjusting circuit according to the limiting state signal of the first monitoring module and / or the magnetic field signal of the second monitoring module. According to the technical scheme provided by the invention, through cooperation of the motor driving module, the first monitoring module and the second monitoring module, the stability and precision of fiber stripping are improved.

The invention discloses a preparation method of a flexible phase-change material composite membrane which is synthesized through chemical stripping and physical blending processes and has flame retardance, wherein an organic phase-change material is coated with a three-dimensional network-shaped poly (p-phenylene benzobisoxazole) fiber (PBO fiber). The preparation method comprises the following steps: by taking a PBO fiber bundle as a raw material, carrying out organic acid dissolution and chemical stripping treatment to obtain PBO nanofiber acid sol; diluting the sol, physically blending the diluted sol with an organic phase-change material to obtain an organic phase-change material-PBO nanofiber composite solution, and adding a coagulating agent to gelatinize the organic phase-change material-PBO nanofiber composite solution; and carrying out gradient solvent replacement, drying and magnetron sputtering silver plating to prepare the silver / organic phase change material-PBO nanofiber composite phase change material film. According to the composite phase change material membrane constructed by the method, due to the aromatic ring rigid chain segment of the PBO fiber and the flame resistance of silver, the final composite phase change material membrane is stable in chemical structure, excellent in flame retardant property and good in mechanical property.

The utility model relates to the technical field of optical fiber cladding processing, in particular to CO2 laser etching optical fiber cladding processing equipment which comprises a machine frame and an optical fiber body, two clamping assemblies used for clamping the optical fiber body are symmetrically arranged on the front side of the machine frame, and an X-axis overall driving mechanism used for driving the clamping assemblies to move is fixedly installed at the inner bottom of the front side of the machine frame. According to the device, an ablation mechanism and a scattering mechanism are combined, high-efficiency stripping of cladding light power is achieved, the performance of an optical fiber in laser transmission, sensing and other applications is greatly improved through the characteristic, energy loss and signal interference caused by cladding light are effectively reduced, the CO2 laser ablation technology is adopted, and the laser ablation efficiency is improved. The device can accurately control the distance and the ablation depth in the etching process, optical fibers with different specifications and requirements can be finely processed by adjusting parameters of the laser emission assembly, it is ensured that etching of each part meets the preset standard, and the consistency and stability of processing are greatly improved.

The utility model discloses a girdling mechanism, and belongs to the field of optical fiber outer skin stripping equipment. Comprising a rack; the positioning module is used for fixing the optical fiber; the guide module is used for guiding the optical fiber; the girdling module is used for cutting the outer skin of the optical fiber; the linear moving module is used for driving the girdling module to move; compared with the prior art, the beneficial effects of the utility model are that through the cooperation of the positioning module, the guiding module, the girdling module and the linear moving module, the automatic stripping of the optical cable can be realized, and the damage to the optical fiber during the stripping of the outer skin can be avoided.

The present invention belongs to the field of optical cables and discloses an optical fiber ribbon cable with a regular polygonal cross section, comprising a plurality of first-type optical fiber ribbons (1), a sleeve component (3), and a protective sleeve (4) covering the sleeve component. The first-type optical fiber ribbon (1) is composed of a plurality of first optical fibers (11) and a first bonding layer (12) bonding the plurality of first optical fibers. The cross section of the first-type optical fiber ribbon (1) is a parallelogram and has an angle of sixty degrees. The invention is characterized in that the outer edge of the cross section of the sleeve component (3) is a regular hexagon, the sleeve component (3) is an integrated structure, and the sleeve component (3) is a special structure, wherein the interior of the sleeve component (3) is divided into a plurality of parallelogram spaces, and a plurality of first-type optical fiber ribbons with parallelogram cross sections are placed in the parallelogram spaces. The present invention has the following main beneficial technical effects: higher fiber core density, less material consumption, and more convenient separation / stripping / identification.

The utility model discloses an optical fiber hot stripping machine which comprises a workbench, a positioning mechanism, a moving mechanism, a hot stripping mechanism, a recovery assembly, a detection positioning assembly, a pedal control assembly, a control panel, a controller assembly and an outer cover, and the control panel is provided with a display screen; the hot stripping mechanism is also provided with a temperature prompting assembly; the recycling assembly comprises an air blowing assembly, a pushing assembly and a waste recycling assembly. According to the utility model, the pushing assembly is used for loosening outer skin waste after hot stripping and preventing adhesion from influencing subsequent processing, the blowing assembly is combined for providing blowing cleaning, and the waste recovery assembly is used for guiding out and recovering the waste, so that the automatic cleaning and recovery of the waste are realized, and the production efficiency is improved. The use safety and the hot stripping efficiency are improved; by arranging the temperature prompting assembly, the functions of induction monitoring and observation monitoring are realized, the intuition is improved, the damage of the cable core of the optical fiber cable caused by abnormal heating due to a fault is prevented, and the prompting timeliness is improved.

The fastening tool device comprises a limiting base, a clamping station groove is formed in the limiting base, and the clamping station groove is provided with a first limiting wall and a second limiting wall which are oppositely arranged; a clamping groove is formed in the limiting gland; and the limiting protection piece is made of a soft material, the limiting protection piece is embedded in the clamping groove, and in the state that the limiting gland covers the limiting base, the limiting protection piece can be matched with the first limiting wall and the second limiting wall of the clamping station groove and is used for positioning the pipeline workpiece in the assembling station groove. Meanwhile, the mold stripping equipment applying the fastening tool device solves the problem that an existing glass tube is prone to rolling on a plane, so that an optical fiber is damaged and even broken.

The invention discloses a multi-core bundled optical fiber patch cord and a high-precision manufacturing method thereof, and belongs to the technical field of optical fiber communication, and the method comprises the steps: (1) determining the actual length upper limit and the length preset value of each branch optical fiber; (2) manufacturing a beam combining end connector; (3) arranging a long insertion core; (4) stripping the branch optical fiber and assembling a temporary measurement insertion core; measuring the initial length of each branch optical fiber and a cutting preset value of at least one branch optical fiber; (5) determining the stripping and cutting times of the branch optical fibers and the cutting length of each cutting; (6) stripping and cutting each branch optical fiber for multiple times until the length of each branch optical fiber reaches a cutting preset value; and (7) taking down all the temporary measurement insertion cores, assembling standard-size insertion cores, and completing the manufacturing of each branch end connector, thereby completing the manufacturing of the multi-core cluster optical fiber patch cord. According to the method, the jumper wire manufacturing precision and the temperature stability can be guaranteed, the reject ratio and the cost of jumper wire manufacturing are reduced, and the method has an excellent application prospect.

The utility model provides a cladding light stripping device, which comprises a mounting base, a laser assembly, a rotating assembly and a sliding table assembly, the sliding table assembly comprises an electric X-axis sliding table, an electric Z-axis sliding table, a manual A-axis sliding table and a manual Y-axis sliding table, the rotating assembly comprises a mounting substrate and two rotating modules, the mounting substrate extends along the X-axis direction, and the two rotating modules are arranged on the mounting substrate. The rotating module comprises a rotating driving motor, two rotating shafts, a rotating support, a fixing support and an optical fiber clamp, the rotating driving motor drives the rotating support to rotate, the optical fiber groove and the transmission gear are provided with loading openings in the radial direction, and the optical fiber clamp is arranged at the end, in the X-axis direction, of the optical fiber groove and connected with the rotating support. The rotary support is arranged on the fixed supports in the mode of rotating around the X-axis direction, the two fixed supports are arranged at the two ends, based on the X-axis direction, of the installation base plate, the installation base plate is arranged on the manual Y-axis sliding table, a machining position is formed between the two optical fiber clamps, and the laser outputs laser towards the machining position.

The utility model discloses an automatic loading machine for a carrier tape, which relates to the technical field of electronic component production, and comprises a base, the front surface of the base is respectively and rotatably connected with a material guiding roll shaft, a waste material collecting roll shaft and a material pulling roll shaft, the inside of the base is rotatably connected with a rotating shaft, the front end of the rotating shaft is integrally connected with an overturning emptying shaft head, and the overturning emptying shaft head is connected with a material pulling roll shaft. An optical fiber sensor is installed on the front face of the base and located above the overturning discharging shaft head. According to the automatic loading machine for the carrier tape, the production efficiency can be remarkably improved. Through an automatic mechanical structure, a series of operations such as automatic pulling, product stripping and product loading of the material belt are realized, and complexity and low efficiency of manual loading are avoided, so that the operation efficiency of the whole production line is greatly improved. The method is particularly critical to a large-batch production scene, and remarkable economic benefits can be brought to enterprises.

The application discloses a cladding light stripping method, device, equipment and storage medium. The application acquires energy information and divergence angle information of the cladding light to be stripped, determines target glue required by the cladding light to be stripped at a target position according to the energy information and the divergence angle information, and strips the cladding light to be stripped at the target position through the target glue. The application determines the target glue required by the cladding light to be stripped at the target position according to the energy information and the divergence angle information, and strips the cladding light to be stripped at the target position through the target glue, so that the cladding light can be effectively stripped. On the other hand, the application can strip the cladding light to be stripped at each target position, can be used in different positions in an optical fiber laser light path, can effectively strip low-power cladding light, reduces the number of cladding light strippers, thereby reducing the cost, and ensures the stability of the optical path device in the optical fiber laser and the safe operation of the optical fiber laser.

The present disclosure relates to an optical fiber stripping machine comprising a first heated roller and a second heated roller, the first heated roller and the second heated roller defining a mouth of an optical fiber stripping device; and a first peeling tape and a second peeling tape respectively routed around the heated roller when the optical fiber is inserted into the mouth of the optical fiber peeling device along the optical fiber insertion / withdrawal axis in the optical fiber insertion direction; and a tape puller for pulling the first peeling tape and the second peeling tape to remove the coating from the optical fiber with high precision.

This invention discloses a method for preparing a reticulated fiber-reinforced tungsten-based composite material, relating to the field of tungsten-based material preparation technology. First, long fibers are woven into a mesh and coated with a functional interface layer. Then, the fiber mesh and slurry are alternately laid using an indirect 3D printing method to obtain a green body of the reticulated fiber-reinforced tungsten-based composite material. Next, the binder components in the green body are removed using a hydrothermal method and a thermal stripping method. Finally, pre-sintering is performed using a hydrogen reduction sintering method to obtain a reticulated fiber-reinforced tungsten-based composite material with a certain structural strength. Then, a bulk composite material is obtained using an ultra-high pressure high temperature sintering method. The tungsten-based composite material prepared by this process is nearly fully dense, exhibiting high toughness at room temperature while ensuring high strength. Furthermore, the combination of hot pressing sintering and ultra-high pressure high temperature sintering methods allows the final composite material bulk to achieve a density of over 99%.

The application discloses a kind of optical fiber mode detection device and laser output device, it is related to optical fiber technical field, wherein, optical fiber mode detection device includes base, double-clad fiber and detection component, double-clad fiber is set on base, double-clad fiber is formed with detection area, multiple stripping areas are equipped in detection area, the diameter of multiple stripping areas successively decreases along the axial direction of double-clad fiber, to respectively strip out different mode light waves, detection component includes the optical power meter being set on base, optical power meter is set corresponding detection area, to detect the power of stripping light, by setting base, to install double-clad fiber with detection device, and by setting multiple stripping areas in detection area, to strip out different mode light in double-clad fiber, simultaneously by setting optical power meter, to respectively detect the power of stripping light in different stripping areas, to obtain the power of each mode light in optical fiber, to determine the proportion of each mode of optical fiber.

The disclosure provides a cladding light stripper, a method for manufacturing the same, and a laser apparatus. The cladding light stripper includes an optical fiber and a refractive component. A refractive index of a first refractive member of the refractive component is greater than a refractive index of the cladding layer, so as to achieve the stripping of cladding light. Moreover, cross-sectional areas of the first refractive member in a radial direction of the optical fiber gradually increase in a direction from an input end to an output end of the optical fiber, so as to avoid rapid temperature rise at local position of the first refractive element to safely strip the cladding light.

This invention relates to the field of cable testing technology, and more specifically, to a method and system for intelligent location of partial discharge and early warning of insulation degradation in cables. By deploying a distributed fiber optic ultrasonic and ultra-high frequency sensor array, partial discharge signals are simultaneously acquired. Deep learning algorithms are used for interference stripping and feature extraction. A dual-channel neural network is employed to collaboratively analyze the acoustic-electric fusion signal to obtain preliminary location data. Subsequently, the location information is imported into a high-precision digital twin model of the cable gallery. Accurate corrections for multipath effects and environmental attenuation are performed through acoustic-electromagnetic wave propagation simulation, achieving three-dimensional sub-meter-level precise location of the fault point. A partial discharge event fingerprint database and an insulation state evolution model are constructed to dynamically assess and predict the degradation stage and remaining electrical life of the cable insulation, forming an intuitive insulation "health cloud map." Finally, differentiated operation and maintenance strategies, from online monitoring to planned maintenance, are automatically generated based on the risk level, forming a complete predictive maintenance closed loop.