60results about How to "Reduce coupling effect" patented technology

The invention discloses a capacitive small six-dimensional force sensor, an optimization design method and a six-dimensional force decoupling method.The sensor comprises a three-T-shaped beam type elastic body, a lower electrode plate, an upper electrode plate and a base, the three-T-shaped beam type elastic body converts external six-dimensional force into displacement changes, the upper electrode plate is connected with the elastic body, the upper electrode plate and the lower electrode plate form six sets of opposite electrodes, and the three-T-shaped beam type elastic body is connected with the base. Comprising three groups of horizontally arranged electrodes and three groups of vertically arranged electrodes to form six groups of parallel plate capacitor structures. When the sensor is subjected to external force, deformation of the elastic body drives the upper electrode plate to generate displacement, a capacitance value is changed, and force information is converted into six capacitance signals to be output. The sensor is compact in design and small in size, and can be conveniently integrated into narrow spaces such as robot fingertips. Based on a capacitance measurement principle, the sensor has excellent dynamic response performance and can quickly respond to external force change. The sensor has high sensitivity, rigidity in all directions is consistent, the coupling effect of force is effectively reduced, and high-precision six-dimensional force decoupling is achieved by combining a decoupling algorithm.

The invention discloses a low-coupling biaxial silicon micro-resonant accelerometer. The low-coupling biaxial silicon micro-resonant accelerometer comprises an upper-layer micro-accelerometer structure and a lower-layer glass substrate with a signal lead, the micro-accelerometer structure is composed of two separated mass blocks, two pairs of identical tuning fork resonators and eight identical primary amplification levers. The two separated mass blocks are fixed on the same group of anchor points through U-shaped beams in different directions and are respectively used for measuring the acceleration of X / Y axes, and the whole structure is in a symmetrical figure. The four tuning fork resonators are distributed in a central symmetry mode and used for detecting the acceleration of the X axis and the acceleration of the Y axis. The X-axis and the Y-axis adopt the separated mass blocks, the sensitive mass blocks of the X-axis and the Y-axis are not connected, complete decoupling of the two detection axes is achieved, the lever structure can effectively amplify inertia force generated by the mass blocks, the sensitivity of the accelerometer is improved, and high-precision double-axis acceleration measurement is easy to achieve.

The invention belongs to the technical field of bioengineering, and particularly relates to a bioengineering-based cell culture environment simulation system, which comprises an incubator device and a control system for controlling the incubator device, and the control system is used for controlling the incubator device to complete simulation of a temperature and humidity environment required by cell culture; the control system comprises an acquisition module, a control module and a processing module, the acquisition module comprises a temperature sensor and a humidity sensor which are arranged in the incubator, the control module comprises a temperature adjusting mechanism and a humidity adjusting mechanism which are arranged in the incubator, and the processing module comprises a processing chip and an upper computer. Firstly, constant temperature and humidity required by cell culture are input through an upper computer, a decoupling control method is operated in the upper computer, and the upper computer controls a temperature adjusting mechanism and a humidity adjusting mechanism to work simultaneously through the decoupling control method to complete simulation of a cell culture environment. The coupling effect between temperature and humidity adjustment can be reduced.

The invention discloses a deep learning method for eliminating a low-frequency SKA broadband effect and a synthetic beam effect, and belongs to the field of radio astronomical image processing, and the method comprises the steps: S1, building an FSAS, an FERM and an FGFN; s2, establishing an IFS-Transform network model based on the FSAS, the FERM and the FGFN established in the step S1; s3, using two FERM modules to obtain low-level features F0 of the dirty image I belonging to RH * W * C, wherein the low-level features F0 belong to RH * W * C; s4, inputting the F0 into an FGFN module, and completing a coding part through two times of down-sampling operation; s5, performing three FSAS and two times of up-sampling on the features obtained by the coding part to realize feature learning and decoding operation; and S6, after two FERM processing, a final restored image is obtained. According to the effect elimination method based on deep learning, the broadband effect and the synthetic beam effect can be more effectively and jointly eliminated, the original sky brightness can be recovered and reconstructed to a greater extent, and the effect elimination time can be greatly shortened; according to the method, the manual operation process of effect elimination can be greatly simplified by adopting the deep learning technology.

The invention discloses a polymerization drying control method and related equipment, and the method comprises the steps that a drying tower parameter set of a polymerization drying system is obtained, and the drying tower parameter set comprises operation parameters with labels; training the initial time sequence model by using the drying tower parameter set to obtain a target drying model; acquiring real-time operation parameters of the aggregation drying system and attribute parameters of the to-be-dried object; the attribute parameters and the real-time operation parameters are input into a target drying model to be processed, and target operation parameters are obtained; and controlling the aggregation drying system based on the target operation parameters so as to perform aggregation drying on the to-be-dried object. The problems that an existing material drying device is basically in a pure manual control state, the complexity of the drying process is increased due to manual control, drying variable coupling is serious, the control difficulty is high, and the drying efficiency is low are solved.

The invention relates to an inductance type absolute position encoder and a motor. The encoder comprises an excitation module, an inductance module, a detection module, an analog-to-digital conversion module and an absolute position calculation unit. The inductance module comprises a stator and a rotor, the rotor comprises inner and outer base coils, and the stator comprises an excitation coil and inner and outer induction coils; the inner group of induction coils and the outer group of induction coils of the inner induction coil and the outer induction coil are respectively composed of three induction coils with the phase difference of 120 degrees; and the absolute position calculation unit is used for carrying out dimension reduction processing on the input digital signals through matrix transformation so as to eliminate errors and output absolute position information. According to the invention, the three-coil internal and external combination mode with the phase difference of 120 degrees is adopted, and the coupling influence of the internal and external coils is eliminated through matrix transformation, so that absolute position information with higher precision and resolution can be obtained through electromagnetic induction.

The invention relates to a system and a method for measuring punching positions of stone chimes. The technical problem that the stone chime punching position cannot be correctly determined in the prior art is mainly solved. According to the technical scheme, the system for measuring the punching position of the stone chime comprises a stone chime bracket, stone chime excitation equipment, laser vibration measurement equipment and a computer system, the stone chime bracket is placed on the ground, and the detected imporous stone chime is hung on the stone chime bracket; the stone chime excitation equipment and the laser vibration measurement equipment are arranged on the front side and the back side of the detected non-porous stone chime and are connected with the computer system. The method comprises the following steps: 1, measuring the position of the mass center of the pore-free stone chime to be measured; 2, measuring a frequency response curve of the measured pore-free stone chime and drawing a vibration mode diagram; and step 3, determining the punching position of the detected pore-free stone chime by analyzing a frequency response curve and the vibration mode diagram and combining the mass center position obtained in the step 1.

The invention provides a display panel and a display device, and relates to the technical field of display, a pixel driving circuit comprises a driving transistor, a first reset module and a data writing module, a grid electrode of the driving transistor is connected with a first node, a first pole is connected with a second node, and a second pole is connected with a third node; two ends of the first reset module are respectively connected with a first reset signal line and a first node, and a control end is connected with a first scanning line; two ends of the data write-in module are respectively connected with a data signal line and a second node, and a control end is connected with a second scanning line; the display area comprises a first display area and a second display area which are arranged in the first direction, and the first display area is located between the second display area and the binding area; in each pixel driving circuit, a first capacitor is formed between the first node and the second scanning line; the capacitance value of the first capacitor in the pixel driving circuit corresponding to the first display area is smaller than the capacitance value of the first capacitor in the pixel driving circuit corresponding to the second display area, so that the display uniformity is improved.

This invention discloses a circularly polarized scanning grating array based on a broadband 90° balun, belonging to the field of microwave antenna technology. The array consists of a grating array of circularly polarized antenna elements. Each circularly polarized antenna element includes, from top to bottom, a radiating patch layer, a first dielectric substrate, an air gap layer, a metal ground layer, a second dielectric substrate, and a feed network layer. This circularly polarized antenna element uses a rotated microstrip patch as the radiator and employs a metal back cavity to achieve stable unidirectional radiation. This structure effectively reduces coupling between elements after antenna array assembly. The lower-layer feed network uses a 180° power divider phase shifter combined with an ultra-wideband phase shifter, which can greatly achieve broadband phase shifting, thereby widening the impedance bandwidth and axial ratio bandwidth of the circularly polarized antenna.

A physiological mechanical signal monitoring system and method utilizing motion state to suppress artifacts, belonging to the field of biomedical signal monitoring and processing technology, aims to improve the existing distributed multi-node vibration and physiological signal acquisition systems, which suffer from severe crosstalk between multiple channels, signal aliasing caused by artifacts, and feature distortion, failing to meet the requirements of high-fidelity, multimodal dynamic acquisition. Key technical points: The signal monitoring system includes a multi-point distributed acquisition module, a motion state recognition module, an artifact detection and adaptive filtering module, and a main control and signal fusion module. The main control and signal fusion module is used to fuse and reconstruct the multi-channel physiological mechanical signals after artifact suppression processing, outputting high-fidelity physiological signals. This invention significantly reduces the coupling effect between different channels caused by environmental vibration, body motion impact, and matrix resonance through independent support of multiple spatial nodes and isolation of mechanical paths, significantly improving the spatial discrimination ability and original independence of the signals. This invention achieves multi-point physical isolation at the structural level, and then combines vector superposition to achieve preliminary noise reduction, effectively reducing artifacts caused by non-target actions and environmental disturbances.

The utility model discloses a multi-loop antenna, which comprises a feed connector, a plurality of insulating sheaths and oscillators, the insulating sheaths and the oscillators are sequentially arranged, the length of each oscillator is lambda / 2, and lambda is operating wavelength; one end of the vibrator sequentially penetrates through the first holes formed in the insulating sheaths and then is connected with a core wire of the feed connector, and the other end of the vibrator sequentially penetrates through the second holes formed in the insulating sheaths and then is close to the core wire of the feed connector and is in a suspended state; the part of the oscillator between the adjacent insulating sheaths is arranged to be an annular body, and a preset included angle exists between the radial cross sections of the adjacent annular bodies. The total length of the oscillator is lambda / 2, and after winding, the length of the multi-loop antenna is about lambda / 2pi and is obviously lower than lambda / 4. Therefore, the length of the manufactured antenna is smaller than that of a lambda / 4 whip antenna and that of a 3 lambda / 4 J-shaped antenna. Besides, the length of the oscillator is lambda / 2, which is one time longer than the length of the oscillator of a lambda / 4 whip antenna, so that the radiation capability of the oscillator is improved.

The invention discloses a rotor suspension driving structure and method and a motor, and belongs to the technical field of magnetic suspension drive.The rotor suspension driving structure comprises a rotor suspension assembly and a rotor rotation driving assembly which are arranged on the two radial sides of a rotor, and working air gaps are formed between the rotor suspension assembly and the rotor rotation driving assembly and the rotor; the rotor is made of diamagnetic materials, the rotor suspension assembly below the rotor adopts a permanent magnet array and can be arranged in an Opposite or Halbach mode, passive and stable suspension support is provided for the rotor through magnetic repulsive force, the ratio of the suspension force to the gravity of the rotor is increased along with reduction of the scale, the miniature design of the bearing can be achieved, meanwhile, extra space is not occupied, and the bearing is more compact in structure and more compact in structure. And the size requirement of the motor can be further reduced.

The invention discloses an antenna unit structure and a phased array antenna including several of the antenna unit structures, wherein the antenna unit structure includes a first radiation unit, a second radiation unit, a feeding unit and a frequency selection surface; the first radiation unit is arranged between the second radiation unit and the feeding unit respectively; the frequency selection surface is used to transmit the electromagnetic waves of the first radiation unit, and is also used to suppress the electromagnetic waves in the direction outside the antenna unit, and confine the electromagnetic waves of the corresponding antenna unit within the antenna unit; the first radiation unit includes a main body and a plurality of sawtooth extensions; the center of the main body has a through hole; each sawtooth extension is fixed to the main body and extends into the through hole; the frequency selection surface is fixed to the main body of the first radiation unit. The antenna unit structure and the phased array antenna of the antenna unit structure described in the present invention have the effects of achieving miniaturization, expanding impedance bandwidth, and increasing isolation between antenna units.

The embodiment of the invention relates to the technical field of semiconductors, and provides a layout structure of a row decoding circuit, which comprises a plurality of row address signal lines located on a first wiring layer, and each row address signal line is electrically connected with a corresponding pre-decoding sub-circuit and a corresponding buffer sub-circuit, the plurality of row address signal lines are divided into first row address signal lines and second row address signal lines, and the number of the pre-decoding sub-circuits electrically connected with the first row address signal lines is larger than that of the pre-decoding sub-circuits electrically connected with the second row address signal lines; the buffer data lines are located on the second wiring layer, and each buffer data line is electrically connected with the corresponding buffer sub-circuit and the corresponding row address comparison sub-circuit; the overlapping area of the orthographic projections of the first row address signal line and the buffer data line on the second wiring layer is smaller than the overlapping area of the orthographic projections of the second row address signal line and the buffer data line on the second wiring layer, and the overlapping area is a second area. The embodiment of the invention is at least beneficial to reducing signal interference.

The invention belongs to the technical field of chemical data analysis, and discloses a chemical data analysis system and method for a chemical plant based on industrial big data; the method comprises: real-time acquisition of process parameters of each device in a factory production process, the process parameters comprising temperature, pressure and flow; processing the process parameters of each device and extracting characteristic parameters; judging whether to mark parameters in the characteristic parameters as abnormal parameters; analyzing the flow of the device corresponding to the abnormal parameters and obtaining the corresponding optimal parameters; controlling and adjusting the abnormal parameters of the device according to the optimal parameters; re-acquiring the process parameters of each device and extracting the characteristic parameters, judging again whether to mark the parameters in the characteristic parameters as abnormal parameters, and if abnormal parameters still exist, performing abnormal type analysis and generating early warning instructions; the invention can greatly improve production efficiency and product quality, effectively optimize the production process, and reduce energy consumption and pollution.

The invention discloses a multivariable fault-tolerant control method for thrust maintenance of a liquid-propellant rocket engine, and the method comprises the steps: analyzing the fault mechanism and influence characteristics of the liquid-propellant rocket engine, and building a typical fault model; and by taking the mixing ratio as a constraint quantity, constructing a multivariable predictive optimization controller oriented to thrust maintenance, and designing a fault-tolerant control architecture to verify the performance of control logic under typical fault injection. According to the method, combustion chamber pressure reflecting thrust is taken as a controlled quantity, a mixing ratio is taken as a constraint quantity, a flow regulator valve core and a fuel main valve opening degree are taken as control quantities, offline training is performed based on a neural network prediction model, online rolling optimization is performed according to errors containing penalty functions and quadratic indexes of the control quantities, the control quantity which keeps better for the thrust is calculated, and the control quantity is optimized. And the maximum variable quantity of the mixing ratio is small, and the specific impulse is high. According to the method, transient loss and steady loss of thrust are reduced after the engine breaks down, the requirements of thrust keeping and mixing ratio constraint are met under the main-stage working condition, and the method has high fault-tolerant capacity for faults.

The application belongs to the technical field of heat supply control application, and particularly discloses a multi-variable heat supply optimization control system for a desuperheater and pressure reducer set based on load prediction technology, which comprises a desuperheating and pressure reducing control module, a desuperheater and a pressure reducer, the desuperheating and pressure reducing control module is connected with the desuperheater and the pressure reducer, the desuperheating and pressure reducing control module is composed of a target load prediction optimization algorithm unit, a data relay unit, an artificial intervention target meeting input unit, a multi-variable fuzzy decoupling controller and a Kalman filter.The application has the beneficial effect that the system can design a multi-variable dynamic decoupling module according to the mutual coupling relationship between temperature and pressure, eliminate the coupling influence between the temperature regulation loop and the pressure regulation loop, and when the system needs to quickly increase the load, give a larger opening degree instruction to the pressure regulating door and the temperature regulating door, so that the system can quickly increase the pressure while maintaining the temperature stable, and when the system flow is close to the flow set value, switch to the steady-state controller for flow control.

The present invention belongs to the technical field of bone density detection, and specifically is a bone density measurement device and method based on photoacoustic signals. The device of the present invention includes a computer, a laser, a transmission control circuit, a translation controller, an ultrasonic transducer, a signal amplifier and an analog-to-digital converter; the computer controls the laser to emit a pulsed laser and move in the horizontal direction through the transmission control circuit and the translation controller, so that the pulsed laser irradiates the bone tissue to be measured, and receives the ultrasonic signal generated by the photoacoustic effect through the ultrasonic transducer, and stores it in the computer through the signal amplifier and the analog-to-digital converter for analyzing and calculating the bone density information. The present invention obtains the bone density information between the two measurement areas by comparing and analyzing the photoacoustic signals at different positions of the bone tissue. The present invention has the advantages of being non-traumatic, non-radiative, and not being interfered by the skin and soft tissue, and can provide detailed information on bone density at different positions.

The utility model belongs to the technical field of display, and particularly relates to an array substrate, a display panel and a display device.The array substrate comprises a substrate and a transistor arranged on the substrate, the transistor comprises a grid electrode and an active layer, and a grid insulating layer is arranged between the grid electrode and the active layer; the transistor further comprises a first electrode which is arranged on one side, far away from the substrate, of the gate insulating layer and is in lap joint with one end of the active layer; a first insulating layer is arranged between the shading electrode and the first electrode, the first insulating layer is arranged on the side, away from the substrate, of the gate insulating layer, the first insulating layer covers the first electrode and the active layer, a via hole is formed in the first insulating layer, and the shading electrode is in lap joint with the other end of the active layer through the via hole. And the orthographic projection of the shading electrode on the substrate is at least partially overlapped with the orthographic projection of the first electrode on the substrate. According to the scheme, the coupling effect of parasitic capacitance can be reduced, poor display such as ghosting and crosstalk is reduced, and the display effect is improved.

The application provides an array substrate and a display panel. The array substrate comprises a substrate, a common electrode layer arranged on the substrate and comprising a common electrode and a plurality of first scan lines extending along a first direction, and a wiring layer arranged on the common electrode layer and comprising a plurality of second scan lines extending along a second direction intersecting the first direction, each second scan line being electrically connected with a corresponding first scan line, the second scan lines being used for transmitting a scan signal, the potential of the scan signal comprising a pulse peak value and a pulse valley value. The common electrode has the pulse valley value, which comprises making the voltage on the common electrode be the pulse valley value for making a switch transistor be closed, thereby reducing the parasitic capacitance between the common electrode and the second scan lines in most working processes of the pixel, and improving the influence of the coupling effect of the parasitic capacitance between the wiring in the vertical direction of the scan line and the common electrode on the pixel on the display of the display panel in the related art.

The present invention relates to a liquid crystal display panel, which comprises a color filter substrate, a TFT array substrate arranged opposite to the color filter substrate, and liquid crystal located between the color filter substrate and the TFT array substrate, wherein the color filter substrate comprises a base substrate and a black matrix layer and a color resistance layer sequentially formed on the base substrate; an ITO conductive layer is arranged on the side of the color resistance layer, and the ITO conductive layer is divided to form a plurality of touch sensing points; a touch line of the TFT array substrate passes through an array pixel area, is connected to the ITO conductive layer in a vertical direction of the substrate, and is connected to a common electrode to form a sheet, and the above technical solution can not only greatly reduce the influence of the coupling of electrodes on the TFT side on the touch point, but also make the distance to the gesture touch closer, the change of the induction capacitance more obvious, and enable the IC to feedback the touch position more accurately, and is less likely to have the problem of abnormal touch error.

The present invention discloses a double-sided heat dissipation power semiconductor module and a manufacturing method, which belongs to the field of semiconductor technology. The semiconductor module is composed of an upper insulating lining, a lower insulating lining, a power semiconductor chip, a metal gasket, an aluminum wire, a power terminal and a signal terminal; the power semiconductor chip is bonded to the lower insulating lining through a preformed solder sheet, and after the power semiconductor chip is placed above the preformed solder sheet, a prestressed pressing block is applied on the surface of the power semiconductor chip and reflow soldering is performed; the power terminal and the signal terminal are first welded to the lower insulating lining by ultrasonic bonding, and solder paste is applied around the pins of the power terminal and the signal terminal before reflow soldering. The manufacturing method of the double-sided heat dissipation power semiconductor module provided by the present invention improves the consistency of the chip height after welding, reduces the welding void rate, ensures the connection strength between the terminal and the insulating lining, and solves the problem of cracking of the ceramic layer of the insulating lining caused by the ultrasonic bonding process.

The application discloses a kind of based on blade height measurement and workpiece surface mapping V groove cutting depth real-time stable control method, device, equipment and medium, comprising: surface height data is converted to under tool tip coordinate system, obtain the workpiece surface mapping data under tool tip coordinate system;Obtain the local surface compensation model corresponding to preset V groove cutting track;According to multi-source sensing data and groove depth detection data, error source diagnosis and orthogonal decomposition are carried out, and a plurality of dimensional error component sets are obtained;Recursive update is carried out to local surface compensation model and error compensation parameter, and target V groove cutting track is obtained;Based on target V groove cutting track, multi-axis synchronous control is carried out to cutting process, and closed-loop correction is carried out to local surface compensation model and error compensation parameter, and updated cutting control parameter is obtained.The application belongs to the field of V groove cutting.The application can improve the precision of V groove cutting.

The present application relates to the technical field of power quality testing, in particular to a fault prediction and health management system and method for full-process automated power quality testing, comprising the following steps: data acquisition and preprocessing; health core feature extraction; power quality fault prediction, adopting a test working condition-equipment state decoupling fault prediction technology that fuses working condition disturbance sensitive factors, generating a working condition normalized health residual vector based on health core features and test working condition information; health management and operation decision-making.The present application introduces working condition disturbance sensitive factors based on historical health sample statistics, adopts a test working condition-equipment state decoupling fault prediction technology, uses the factors to correct and normalize the sensitivity of original feature deviation, and generates a working condition normalized health residual vector.Based on the residual vector, the fault prediction can reduce false alarms and missed reports caused by working condition fluctuations, and improve the accuracy of fault prediction for the test system.

According to the display panel and the electronic equipment, the display effect of the display panel is improved. The display panel includes: a substrate; a first metal layer, a second metal layer and a third metal layer, wherein the first metal layer, the second metal layer and the third metal layer are sequentially stacked on one side of the substrate; the third metal layer comprises a plurality of data lines which are arranged in parallel along the first direction, the plurality of data lines comprise a first data line and a second data line which are arranged adjacently, the second metal layer comprises a first connecting wire which extends along the first direction, and the first data line is electrically connected with the first connecting wire; the first metal layer comprises a first jumper segment extending in the first direction, the first jumper segment is electrically connected with the first connecting wire, the orthographic projection of the first jumper segment on the substrate and the orthographic projection of the second data line on the substrate intersect, and the orthographic projection of the first connecting wire on the substrate and the orthographic projection of the second data line on the substrate do not intersect.

According to the design method of the deep hypothermia infrared focal plane flexible circuit for space navigation, the phosphor copper conducting medium is selected, the wiring mode is adjusted, heat exchange of the deep hypothermia imaging system flexible circuit with the large temperature difference can be effectively reduced, and the working environment of a refrigerating machine is improved. Based on material selection of phosphor copper, a traditional flexible circuit design mode is adopted, and heat exchange can be greatly reduced; a middle shielding ground layer is further optimized and removed, new wiring design is carried out on wiring, heat dissipation is further reduced by reducing the radiation area, and the system is optimized; on the basis, an outer shielding ground layer is changed into grid phosphor copper or directly removed, so that the heat exchange problem is greatly improved. According to the invention, wiring design is carried out on circuit signals of adjacent layers and the same layer, the influence of stray capacitance and signal coupling is reduced, the signal integrity is improved, and the space utilization efficiency is improved. According to the invention, a point-to-point design method is adopted, so that the reliability is enhanced.

The invention discloses a driving controller for identifying a zero angle of a permanent magnet motor and an electric automobile, and the driving controller comprises a central processor which is used for transmitting six paths of PWM signals and two paths of high-frequency pulse width signals; the motor driving unit is connected with an electric automobile permanent magnet motor, and the motor driving unit receives the six paths of PWM signals and drives the electric automobile permanent magnet motor to operate; the rotary transformer excitation circuit receives the two paths of high-frequency pulse width signals and transmits the two paths of high-frequency pulse width signals to the rotary transformer as excitation signals of the rotary transformer, and the rotary transformer emits four paths of signals under the action of the excitation signals; the soft decoding processing unit is used for receiving the four paths of signals and analyzing the four paths of signals into rotor position signals of the permanent magnet motor of the electric automobile; the zero position angle processing unit is used for receiving the position signal of the permanent magnet motor rotor of the electric automobile and analyzing the position signal of the permanent magnet motor rotor of the electric automobile into a zero position angle of the permanent magnet motor of the electric automobile; and a memory unit storing the zero angle.

This invention discloses a quasi-single-mode VCSEL / hollow-core fiber coupling optical fiber, coupling interface, and fabrication method. The coupling fiber includes a thin-diameter outer diameter fiber segment, a first fiber segment, a higher-order mode filtering fiber segment, and a second fiber segment. The thin-diameter outer diameter fiber segment supports few-mode transmission at a wavelength of 850nm, and its core diameter is close to the aperture diameter of the quasi-single-mode VCSEL. The inner diameter of the first fiber segment is the same as that of the thin-diameter outer diameter fiber segment, but its outer diameter is larger. The higher-order mode filtering fiber segment operates in the same wavelength band as the quasi-single-mode VCSEL and transmits in single-mode at this wavelength. The end of the second fiber segment is treated with a tapered heat-diffusion core to gradually expand its fundamental mode field diameter to match that of the hollow-core fiber. This invention, through a unique all-fiber structure, couples the signal light from an 850nm quasi-single-mode VCSEL into a hollow-core fiber link with low delay, low dispersion, and low loss.

The application provides a display panel and a display device. The display panel comprises a display area and a non-display area located at least one side of the display area, and comprises: a substrate located at the display area and the non-display area; a switching circuit located at one side of the substrate and at least at the display area; a first electrode located at one side of the switching circuit away from the substrate and at least at the display area; and a shielding part located at one side of the switching circuit away from the substrate and at least at the display area, the orthographic projection of the shielding part on the substrate at least partially overlaps the orthographic projection of the switching circuit on the substrate, and the signal line connected to the shielding part is different from the signal line connected to the first electrode. The application solves the problem of poor display effect of the display panel caused by coupling crosstalk in the prior art.

The present application relates to a kind of unmanned flight platform tail wing conformal dual-band antenna, including base, further comprising: radiator circuit board, with the upper end of base fixed connection;Radiation circuit and ground circuit are provided on the first, second waveband of radiator circuit board;First, second waveband radiation circuit is arranged on the first face of radiator circuit board, and it is interval distribution along the length direction of radiator circuit board;Ground circuit includes the ground hole expansion array of being arranged below second waveband radiation circuit and the common ground line of being arranged on the second face of radiator circuit board, common ground line is electrically connected with first, second waveband feed circuit;With tail wing conformal radome, antenna cavity is formed between radome and base, and radiator circuit board is arranged in antenna cavity;Support structure, it is arranged in antenna cavity;First waveband feed cable and second waveband feed cable.The present application can realize the dual-band antenna compound in tail wing conformal antenna of independent work, and replace the aerodynamic function of vertical wing.