108results about How to "Reduce reflection" patented technology

The optical module provided by the present disclosure comprises a circuit board, a base, a first light emitting component, a second light emitting component, a first light receiving component and a second light receiving component. The circuit board has a first notch part and a second notch part on the surface, and the base is embedded in the first notch part and the second notch part, so as to fix the base on the circuit board. The first light emitting component and the second light emitting component are located on the top surface of the base. The first light emitting component and the second light emitting component are respectively located in different notch parts, so that the wiring space of the circuit board between the first notch part and the second notch part can be used to increase the wiring area. The top surface of the base is used to carry the first light emitting component and the second light emitting component, and the top surface of the base faces the upper surface of the circuit board. The first light receiving component and the second light receiving component are arranged on the lower surface of the circuit board. The three-dimensional deployment and integrated deployment are realized, which is more conducive to wiring and reducing the occupation of the circuit board space, so as to realize multi-channel light emitting and light receiving.

The application relates to the technical field of teaching instruments, and discloses an interactive teaching instrument and a use method thereof, which comprise a supporting assembly, the top of the supporting assembly is provided with a fixing assembly, the top of the fixing assembly is provided with an adjusting assembly, one side of the adjusting assembly is provided with a display assembly, the display assembly is provided with a light-shielding assembly, the supporting assembly comprises a base, pressure sensors are arranged at the lower ends of the four corners of the base, the fixing assembly comprises a fixing plate, the adjusting assembly comprises a rotating motor arranged at the bottom of the fixing plate, the application can flexibly adjust the angle position, effectively reduce the reflection, avoid affecting the teaching effect, actively remove dust from the display component, improve the display definition, timely intervene when the whole is in an unstable state, improve the stability of the whole, effectively protect the display component when the whole is tilted, and prevent the display component from being damaged.

The utility model relates to the technical field of pipe detection, in particular to an enhanced design of detection precision of a detection device. The utility model discloses a steel pipe surface defect detection device which can keep high-precision dynamic stability in the detection process, provide a clean detection environment and optimize the imaging precision of the steel pipe surface defect detection device. The detection device comprises a shell, an imaging assembly arranged in the shell and a clamping assembly used for clamping a steel pipe, and the shell is provided with a dustproof ring used for allowing the steel pipe to pass through. The clamping assembly comprises a downward pressing device moving in the vertical direction and a supporting roller arranged on a downward pressing path of the downward pressing device, and the supporting roller is used for supporting the bottom of the steel pipe and guiding the steel pipe to enter the shell through rolling movement.

The invention discloses a method and equipment for improving matching of a measured piece in an attenuation measurement system, belongs to the field of radio metering, and comprises the method for improving matching of the measured piece in the attenuation measurement system, and the core of the method is that a precise matching absorption load is added in a front-end transmission system of the measured piece; energy transmission is realized on a waveguide wide side of the precise matching absorption load through a coupling hole; a transmission waveguide is additionally arranged above the coupling hole, and energy is transmitted to a measured piece in the forward direction; and a precise matching absorption load is added in the reverse direction to absorb energy in the reverse direction, so that the measured piece matching improvement equipment in the attenuation measurement system is formed, and finally the measured piece matching of the attenuation measurement system is improved. According to the method and the equipment, the impedance matching of the measured piece is improved by using the precise matching load, the voltage standing-wave ratio of the load level is realized, and the attenuation measurement accuracy is improved. The tested piece matching improvement equipment developed by using the method is directly connected to two ends of the tested piece in an attenuation measurement system, so that the impedance matching of the tested piece is improved.

The present invention relates to an optical lens comprising a substrate and a multi-layer antireflection coating provided on at least one of the main surfaces of the substrate and comprising a stack of at least one layer having a high refractive index and at least one layer having a low refractive index, a spectral reflectance curve of the multi-layer antireflection coating for an angle of incidence in the range of 0 DEG to 15 DEG has a reflection peak centered on a wavelength in the range of 435-450 nm and having a maximum reflectance of less than or equal to 30% and a full width at half maximum of less than or equal to 90 nm, and a local reflectance minimum in the range of 380-420 nm of less than or equal to 2% and a multi-layer antireflection coating for the at least one major surface, the multi-layer antireflection coating providing the at least one major surface with: for an angle of incidence in the range of 0 to 15 degrees, the present invention relates to a light-emitting device comprising a light-emitting element, a light-emitting element, an average light reflection factor Rv of 380 nm to 780 nm of less than or equal to 2.5%, an average blue light reflection factor RmB1 of greater than or equal to 15% in the wavelength range of 420 nm to 450 nm of greater than or equal to 15%, an average blue light reflection factor RmB3 of greater than or equal to 15% in the wavelength range of 440 nm to 460 nm of greater than or equal to 15%, and a ratio RmB1 / RmB3 of less than or equal to 1.

This invention provides an infrared thermal imaging method, relating to the field of infrared thermal imaging technology. The method utilizes a germanium infrared lens in an infrared thermal imaging system, whose surface is sequentially composed of subwavelength micro / nano structures and an anti-reflection film structure from the inside out. The infrared thermal imaging method includes: focusing target infrared radiation through the germanium infrared lens onto an infrared detection array; the infrared detection array converting the target infrared radiation into an electrical signal matrix; performing noise reduction and gain correction on the electrical signal matrix to obtain a preprocessed electrical signal matrix; performing temperature compensation on the preprocessed electrical signal matrix based on a temperature compensation formula and a transmittance temperature model to obtain a corrected signal matrix; and sequentially performing non-uniformity correction, image enhancement, and pseudo-color mapping on the corrected signal matrix before outputting and displaying the result. Using the method of this invention, higher transmittance, lower reflection loss, and more stable thermal imaging can be achieved.

The utility model relates to the technical field of camouflage nets, and discloses a sandy soil camouflage toggle clip camouflage net structure which comprises a bottom net, a color strip layer is arranged at the top of the bottom net, a plurality of groups of camouflage strips are arranged on the color strip layer, a plurality of groups of toggle clips are arranged at the top of the bottom net, and the toggle clips are used for limiting and fixing the camouflage strips. According to the sandy soil camouflage toggle clip camouflage net structure, the camouflage strips on the colored strip layer can be fixed through the toggle clip piece, stable supporting and fixing points are provided for the camouflage strips, the toggle clip can tightly grasp the camouflage strips under various complex environment conditions no matter whether the camouflage strips are lightly fished by breeze or attacked by strong wind, the camouflage strips are effectively prevented from flying around, and the camouflage net structure is simple in structure and convenient to use. In this way, the camouflage net always keeps complete and stable appearance in the long-time use process, and the reliability and durability of the camouflage effect are greatly improved.

One embodiment of the present invention relates to an optical film for being disposed in a display device, and a backlight unit comprising the optical film, the optical film comprising a base film, a pattern layer disposed on the base film and comprising a curved portion, and a coating layer disposed on the pattern layer, the coating may include a plurality of particles disposed continuously on at least a portion of the curved portion of the pattern layer, and a filler material disposed along the curved portion of the pattern layer and filling spaces between the plurality of particles.

This invention relates to a method and system for multiple planning and force adjustment of welding allowance in robotic machining. The invention includes real-time monitoring of weld allowance changes to obtain real-time actual weld allowance data; establishing a material removal rate model based on historical grinding data and material properties; wherein the historical grinding data includes the material removal amount of materials with different properties under different grinding parameters; the material removal rate model is used to predict the material removal amount based on the actual grinding force and material properties; the grinding parameters include grinding speed, grinding path, magnitude and direction of grinding force and / or the tilt angle of the grinding tool; when there is a deviation between the actual weld allowance data and the target allowance, the grinding parameters are dynamically adjusted based on the material removal rate model; future grinding needs are predicted based on the current grinding state, and the grinding parameters are adjusted in advance. This invention improves the consistency of welding allowance processing and grinding accuracy, and enhances grinding quality and efficiency.

This utility model relates to the field of circuit board packaging technology, and in particular to a circuit board and a solid-state drive. The circuit board provided by this utility model sets high-speed differential line pairs as inner layer traces, and uses vias / through holes through the pads of the high-speed differential lines to electrically connect the high-speed connector and the controller. Since the vias / through holes only need to pass through the pads, the number of wiring layers through which the vias / through holes pass is greatly reduced, which makes it possible to use back drilling process to better reduce the number of residual posts and shorten the length of residual posts, effectively reduce signal reflection or crosstalk, and improve signal quality.

The present application relates to the technical field of perovskite devices, and particularly relates to a packaging method of a perovskite device. The packaging method provided by the present application comprises the following steps: mixing methyl methacrylate, 2-methyl-2-acrylic acid-2-hydroxyethyl ester phosphate and 2-hydroxy-2-methyl-1-phenylpropanone to obtain a packaging slurry; coating the packaging slurry on the surface of the perovskite device, covering a glass plate, and performing light curing. The packaging method can improve the photoelectric current density of the device, thereby improving the efficiency of the device, and can significantly improve the outdoor stability of the device.

The application discloses a flexible multifunctional electromagnetic shielding film and a preparation method and application thereof. The electromagnetic shielding film comprises a carbon nanotube film, a high magnetic permeability layer and a high electrical conductivity layer combined with a first surface and a second surface of the carbon nanotube film respectively, and the electrical conductivity of the high magnetic permeability layer, the carbon nanotube film and the high electrical conductivity layer increases in turn, and the magnetic permeability decreases in turn. The application provides an electromagnetic shielding material with a three-layer structure. Due to the difference in the electrical conductivity and the magnetic permeability of the materials between the three layers, the electromagnetic wave experiences an 'absorption-reflection-reabsorption' process after entering the material, so that the material presents a low reflection characteristic. The Joule heating performance of the electromagnetic shielding film is good, the temperature response speed is fast when a voltage is applied, the stability of the electromagnetic shielding film during heating is excellent, the electromagnetic shielding film can remain stable for a long time, and the electromagnetic shielding film shows great application potential in the electromagnetic protection field and the thermal management field of high-integration electronic equipment.

This invention discloses a broadband frequency-shifting conformal transmission method for electromagnetic waves based on a time-varying circuit with dual constitutive parameters, belonging to the fields of microwave radio frequency, time metamaterials, and frequency domain transformation technology. The method is implemented using a frequency-shifting transmission circuit, which includes a microstrip transmission line and a periodically loaded inductor branch. The inductor branch includes switches, series inductors, and parallel inductors. When all switches in the frequency-shifting transmission circuit are open, an input pulse signal is sent to the circuit. When the pulse signal has fully entered the microstrip transmission line, all switches close simultaneously. Due to the wavenumber conservation of the microstrip transmission line, frequency shift occurs, achieving frequency-shifting transmission. This method does not rely on a complex local oscillator system, does not increase circuit complexity excessively, and theoretically does not generate harmonics. It achieves broadband frequency shifting, reflection-free, high-efficiency transmission, and waveform distortion-free conformal transmission, providing a new technical path for broadband, low-distortion signal processing in the microwave radio frequency field.

The application relates to the technical field of photovoltaic solar cells, and discloses a solar cell and a photovoltaic module. The solar cell comprises a silicon substrate, the silicon substrate has a first surface and a second surface arranged oppositely, a medium layer arranged on the second surface, and a doped layer arranged on the surface of the medium layer away from the silicon substrate, wherein the surface of the doped layer away from the medium layer has a plurality of submicron particles. In the application, the roughness of the doped layer can be effectively increased through the plurality of submicron particles on the surface of the doped layer away from the medium layer, the back surface reflection of the cell sheet can be reduced through the submicron particles, the light absorption capacity of the film layer can be improved, and the contact area with metal can be increased, so that the doped layer has better metal contact performance.

The invention belongs to the technical field of optical devices, and discloses a high-polarization dustproof plate for a vehicle-mounted HUD (Head Up Display) and a preparation method of the high-polarization dustproof plate. The polarization dustproof plate comprises a polarization element sub-layer, a first optical compensation layer and a second optical compensation layer, wherein the polarization element sub-layer is clamped between the first optical compensation layer and the second optical compensation layer; wherein the first optical compensation layer and the second optical compensation layer are both polycarbonate films, and the compensation value Re of the polycarbonate films meets the following relational expression: Re < = 50nm or Re > = 3000nm; the polarizer layer is a polyvinyl alcohol polarizing film, and the degree of polarization of the polyvinyl alcohol polarizing film is larger than or equal to 99%. The optical compensation layers with low compensation value or high compensation value functions are arranged on the two sides of the polarization element sub-layer, and the polarization element sub-layer with high polarization degree is adopted, so that the problems of rainbow lines and ghosting are solved, glare and reflection are reduced, the display definition is improved, and the application requirement of large-size HUD projection display can be met.

This invention relates to a GaAs-based flip-chip Mini LED and its fabrication method. The chip comprises, from bottom to top, a transparent substrate, a bonding layer, a P-current spreading layer, and a P-ohm layer. A mesa is disposed on the P-ohm layer. The mesa, from bottom to top, comprises a P-waveguide layer, a light-emitting layer, an N-waveguide layer, an N-current spreading layer, an N-buffer layer, and an N-ohm layer. A P-electrode is disposed on the P-ohm layer below the mesa; an N-electrode is disposed on the N-ohm layer above the mesa. Electrode pads are disposed directly above both the P-electrode and the N-electrode. By setting electrode pads, the soldering required in packaging production is combined with the electrode structure, eliminating the need for solder paste application on the substrate, thus achieving chip-substrate interconnection and facilitating modular production of the packaged chip. This effectively improves the problems of weak chip-substrate bonding strength, high coefficient of thermal expansion, cumbersome manufacturing, and high production costs in chip packaging.

The utility model relates to the technical field of sound insulation boards, in particular to a building sound insulation board which comprises a multi-layer composite sound insulation board, and the multi-layer composite sound insulation board is sequentially provided with a first aluminum alloy board, sound absorption foam, a second aluminum alloy board and a gypsum board in an abutting mode from inside to outside. Sound-absorbing foam is adaptively embedded in a side baffle A on the periphery of the outer side of the first aluminum alloy plate, the outer side of the sound-absorbing foam is adaptively embedded in a side baffle B of the second aluminum alloy plate, an angle bead B and an angle bead A are integrally arranged on the top faces of the side baffle B and the side baffle A respectively, and a plurality of sliding blocks are adaptively embedded in any two pairs of opposite angle bead B and angle bead A bodies. The sliding blocks fix the sound absorption foam by locking the first aluminum alloy plate and the second aluminum alloy plate. The multi-layer composite sound insulation board is convenient to construct and good in sound insulation effect.

The utility model discloses a kind of radar material level meter automatic detection mechanism, it is related to the technical field of calibration measurement, including darkroom and radar material level meter, the darkroom one end outer wall is connected with mounting plate, the darkroom is co-opened with the communicating hole for installing and placing radar material level meter with mounting plate, the movable reflector plate is provided in the darkroom, range finder is installed in the darkroom located radar material level meter one side outer wall, measuring hole is opened in the darkroom for range finder measurement use, the bottom of the darkroom is equipped with the seventh axle track, supporting frame is slidably connected on the seventh axle track. The utility model is set by PLC Test distance, can accurately position the position of reflector plate, reduce the positioning error caused by human factor, improve the precision of ranging detection, increase manual range finder, after reflector plate moves to specified position, manually click range finder calibration current reflector plate distance accuracy, further ensure the reliability of detection data.

This disclosure relates to porous matrices for acoustic impedance matching and improved touch sensing and fingerprint imaging. The invention discloses the use of acoustic impedance matching to improve the accuracy of ultrasonic touch sensing and fingerprint imaging. Acoustic impedance mismatch between the ultrasonic transducer array and the sensing plate can be reduced to maximize energy transfer and minimize parasitic reflections. Reduction of acoustic impedance mismatch can be achieved using: (i) a composite epoxy resin having a higher acoustic impedance than epoxy resin alone; (ii) one or more matching layers having an acoustic impedance approximately equal to the geometric mean of the acoustic impedance of the sensing plate and the acoustic impedance of the transducer array; (iii) holes or perforations in the sensing plate; or (iv) a geometry formed in the sensing plate. Furthermore, an absorbent layer can be used to suppress parasitic reflections.

The utility model relates to the technical field of high-frequency power coupling transmission, and discloses a power feed-in coupling coil based on a high-frequency cavity, which comprises a bottom plate, the top of the bottom plate is provided with a radio frequency cavity, the left and right sides of the radio frequency cavity are respectively provided with a power optimization mechanism, the top of the bottom plate is fixedly connected with a plurality of fixing plates, and the fixing plates are fixedly connected with the radio frequency cavity. The top of the fixed plate is fixedly connected with a bunching mechanism, the power optimization mechanism comprises a winding coupling coil, the front side of the winding coupling coil is fixedly connected with cables, the front sides of the two cables are fixedly connected with a hardware optimization module, and the top of the bottom plate, namely the front side of the hardware optimization module, is provided with a power distribution module. And a total power module is arranged at the top of the bottom plate, namely the right side of the power distribution module. According to the utility model, the purpose of enhancing the stability and the working reliability of the device is achieved, the phase adjustment precision is improved, and the power transmission efficiency of the device is improved.

This invention provides a fully automatic sock inspection and sorting machine, including a frame. A sock-supporting rotating assembly is mounted on the frame to open the heel of the sock and rotate it 360° horizontally. A detection component is mounted on the side of the sock-supporting rotating assembly. The detection component includes a detection module for acquiring image information of the sock heel at a first height and a first tilt angle, and at a second height and a second tilt angle, for defect detection. This invention utilizes the sock-supporting rotating assembly to open the heel of the sock, while the detection component can adjust its height and tilt angle, thereby achieving defect detection of both the sock leg and the heel, further improving detection accuracy. Furthermore, by dividing the sock into upper and lower parts for inspection, the influence of sock length on the detection results is reduced.

The invention provides a grooved pipe fitting installation quality judgment method based on image recognition, and relates to the technical field of image recognition, and the method comprises the steps: collecting a multi-angle surface grayscale image of a to-be-detected grooved pipe fitting in an installation process; performing inversion matching on the gray level distribution characteristics and edge texture characteristics of each pixel point at the joint of the grooved pipe fittings, and identifying abnormal pose contours of connection of the grooved pipe fittings at multiple angles; determining defect pixel points in the installation defect area according to defect edge lines in all the edge texture features and defect comparison coefficients in the installation defect image, performing defect type marking on all the abnormal pose contours through the defect pixel points, and determining an installation quality score corresponding to each defect type according to all defect influence levels; and judging the installation quality of the grooved pipe fitting according to the installation quality score, and outputting a corresponding defect position when the installation quality is unqualified. According to the invention, the installation defects of the grooved pipe fitting can be positioned and identified, so that the accuracy of installation quality judgment is improved.

The utility model provides a tail light and electric motor car relates to car lamp technical field. The utility model provides a tail light includes bottom shell, light source subassembly and lamp shade, bottom shell is connected with lamp shade, and the end surface of lamp shade has the even light area, and the side wall has the light leakage prevention area, light source subassembly includes the substrate and a plurality of light source spare, the substrate is located between bottom shell and lamp shade, and is installed in bottom shell, a plurality of light source spare interval distribution, and all install in the end surface of substrate towards lamp shade, the light emitting angle of light source spare is arranged as alpha, 90 DEG >= alpha >= 30 DEG, with the distance of the light emitting angle coincidence of two light source spare adjacent is P, with the distance between the end surface of substrate and lamp shade is H, H >= P. The utility model provides a tail light solves the technical problem of low brightness or high development design cost in prior art.

This invention provides a self-cleaning coating composition, a self-cleaning coating, and a method for preparing the same. The self-cleaning coating composition comprises a carbon nanotube dispersion, a first nano-silica dispersion, a second nano-silica dispersion, and hexamethyldisilazane; wherein the first nano-silica dispersion comprises first nano-silica, the second nano-silica dispersion comprises second nano-silica, and the average particle size difference between the first and second nano-silica is 40–60 nm. This invention utilizes two different hydrophobic nano-silica particles with an average particle size difference within this range to construct a suitable nano-roughness, while simultaneously increasing the porosity of the coating by adding a small amount of nanotubes. The roughness construction enhances the self-cleaning performance of the coating, while the micropore construction reduces light reflection, improves the light transmittance of the self-cleaning coating, and provides excellent self-cleaning function.

This utility model discloses a heating element-embedded defogging glass sight glass, relating to the field of glass defogging technology. The utility model includes a mounting base; the front of the mounting base has a mounting opening, inside which a composite sight glass body is placed; a clamping frame is fixedly connected to the front of the mounting base, and a pop-out component is provided on the back of the mounting base; the pop-out component includes an outer frame, inside which multiple evenly distributed mounting holes are formed along the circumference, and each mounting hole has a movably fitted push rod; a sealing plate is fixedly connected to the side of the outer frame facing away from the mounting base, and a push-out spring is movably fitted inside the mounting holes; the composite sight glass body includes two transparent sight glass panes, with a heating element sandwiched between the two transparent sight glass panes. This utility model, by combining a composite sight glass body with an embedded heating element and an anti-fogging composite film, can quickly remove fog; furthermore, the pop-out component allows for quick assembly and disassembly of the composite sight glass body, thereby improving maintenance efficiency.

The invention relates to a scintillation detection system, which belongs to the technical field of X-ray signal detection, solves the technical problems of weak anti-interference capability and low signal-to-noise ratio of X-ray detection, and consists of a plurality of detection units which are serially arranged, each detection unit comprises an incident channel, a transmission channel, a reflection channel, a light collection channel, a scintillator, a scintillator support, an optical fiber light transmission beam, a photoelectric detector and an electromagnetic shielding box. The incident channel, the transmission channel, the reflection channel and the light collection channel are connected with one another to form a vacuum chamber. The center of the scintillator is located on a convergent point of central axes of the four channels. The surface of the scintillator is perpendicular to the central axis of the light collection channel. The incident end of the optical fiber light transmission beam is connected with the light collection channel, and the emergent end is connected with the photoelectric detector which is located in the electromagnetic shielding box. Light emitted by the scintillator reaches the incident end surface of the optical fiber light transmission beam, and the light intensity is uniformly distributed. The low-intensity X-ray detector is used for low-intensity X-ray detection under strong background interference.

The application provides a parabolic antenna. The parabolic antenna comprises a feed source assembly, a support rod and a parabolic reflector. The feed source assembly comprises a feed source cover and a PCB oscillator arranged in the feed source cover. The two ends of the support rod are connected to the focal point of the parabolic reflector and the feed source cover respectively. The feed source cover comprises a first sub-cover and a second sub-cover which are connected to each other. The first sub-cover is farther away from the support rod than the second sub-cover. In the direction towards the support rod, the first sub-cover is in a cylindrical shape with a diameter which is first tapered and then expanded. The second sub-cover is in a cylindrical shape or in a cylindrical shape with a diameter which is expanded by less than or equal to 5%. The shape of the connection between the first sub-cover and the second sub-cover changes abruptly. The parabolic antenna has a simple structure, a small number of parts, a low cost, high electrical performance and high environmental reliability.

The invention relates to the technical field of electric connectors, in particular to a feed-through connector which comprises a feed-through insertion piece, a coaxial cable, a coaxial connector with the characteristic impedance of 50 ohms, an epoxy resin sealing layer and a connecting plug. The feed-through insertion piece is made of an insulating high-molecular polymer material and comprises an installation body, the installation body is provided with a first side and a second side which are oppositely arranged in the axial direction, an installation channel penetrating in the axial direction is formed in the installation body, and a plurality of bolt holes are formed in the installation body; the mounting channel comprises a first hole section and a second hole section which are sequentially communicated in the axial direction, the hole diameter of the first hole section is larger than that of the second hole section, and the connecting plug is fixedly arranged on the first side of the mounting body and coaxially and correspondingly arranged with the mounting channel; and stable coaxial transmission and sealing insulation effects can be realized while the mechanical connection reliability is maintained.

The present application relates to a kind of multi-channel acoustic black hole sound absorption structure and silencer, belong to noise control technical field, the defects of current acoustic black hole sound absorption structure are solved, including shell, the side of shell is open, the open side of shell is used to receive incident sound wave, partition is equipped in shell to separate the space in shell into multiple sound absorption channels, multiple rib plates are equipped in each sound absorption channel, the outer end of rib plate is fixed with the inner side of shell, rib plate is perpendicular to the incident direction of sound wave, multiple rib plates are spaced along the incident direction of sound wave, and along the incident direction of sound wave, the width of multiple rib plates gradually increases, the inner end of multiple rib plates is set power law function distribution, the inner end of multiple rib plates is bonded with the outer side of porous plate and is fixedly connected with porous plate, the sound absorption structure of the present application can better realize ultra-wideband sound absorption.

The invention discloses a unipolar and bipolar pulse generating device for electric field ablation and a control method, and relates to the technical field of electric field ablation. The unipolar and bipolar pulse generating device comprises a high-voltage charging module, a half-bridge series pulse generating module and a driving control module; the high-voltage charging module provides high-voltage electric energy for the half-bridge series pulse generation module; the driving control module is connected with the half-bridge series pulse generation module and is used for controlling the on-off of a switch of the half-bridge series pulse generation module; one end of the load matching and protection module is connected with the half-bridge series pulse generation module, and the other end is connected with a load to realize pulse matching transmission and safety protection. The technical scheme that unipolar and bipolar can be freely switched is adopted, dual optimization of the ablation effect and operation safety is achieved, ablation pretreatment is conducted in a bipolar mode, and an ablation blind area caused by the single unipolar electric field direction is eliminated through alternate positive and negative pulses.