2015 results about "Metal membrane" patented technology

The invention discloses tempered low-emissivity coated glass, which comprises a tempered glass substrate and a composite metal film layer laminated on the substrate, and is tempered coated glass with three metal silver film layers. After a common glass substrate is plated with a composite metal film layer, toughening treatment is carried out, and after toughening treatment, all the metal film layers reflect, interfere and refract light, so that the glass is light blue in the sun, and the decoration and energy-saving effects are good; the visible light transmittance is high, the outdoor visible light reflectivity is low, the solar energy transmittance is low, and the solar energy reflectivity is high; the prepared hollow glass has better energy-saving effects of light control, heat insulation, heat preservation and the like, enables buildings to be closer to nature, is used for near-zero-energy-consumption buildings, enables the buildings to meet the requirements of the national standard GB55015-2021 General Standard for Energy conservation and Renewable Energy Utilization of Building, and has great contribution and significance on carbon neutralization and carbon peak reaching of the buildings.

The invention discloses coated glass for near-zero energy consumption buildings, which comprises a glass substrate and a composite metal film layer laminated on the glass substrate, and is coated glass with three metal silver film layers. According to the invention, one of the multiple composite metal film layers on a common colorless transparent float glass substrate reflects and interferes with light, so that the coated glass is light green (French green) in the sun, and has good decoration and energy-saving effects; the hollow glass is high in visible light transmittance, low in outdoor visible light reflectivity, low in solar energy transmittance and high in solar energy reflectivity, and can be made into hollow glass to achieve better energy-saving effects such as light control, heat insulation and the like, so that a building is closer to the nature and is fused with the nature.

The invention discloses light blue low-radiation coated glass for near-zero energy consumption buildings and a preparation method of the light blue low-radiation coated glass, the light blue low-radiation coated glass comprises a glass substrate and a composite metal film layer laminated on the glass substrate, and the light blue low-radiation coated glass is coated glass with three metal silver film layers. According to the invention, one of the multiple composite metal film layers on the common colorless transparent float glass substrate reflects and interferes with light, so that the coated glass is light blue in the sun and has good decoration and energy-saving effects; the hollow glass is high in visible light transmittance, low in outdoor visible light reflectivity, low in solar energy transmittance and high in solar energy reflectivity, and can be made into hollow glass to achieve better energy-saving effects such as light control, heat insulation and the like, so that a building is closer to the nature and is fused with the nature.

The invention discloses light gray low-emissivity coated glass for near-zero energy consumption buildings and a preparation method thereof, the light gray low-emissivity coated glass comprises a glass substrate and a composite metal film layer laminated on the glass substrate, and is coated glass with three metal silver film layers. According to the invention, one of the multiple composite metal film layers on the common colorless transparent float glass substrate reflects and interferes with light, so that the coated glass is light gray in the sun and has good decoration and energy-saving effects; the hollow glass is high in visible light transmittance, low in outdoor visible light reflectivity, low in solar energy transmittance and high in solar energy reflectivity, and can be made into hollow glass to achieve better energy-saving effects such as light control, heat insulation and the like, so that a building is closer to the nature and is fused with the nature.

The invention discloses light blue toughened glass, which comprises a toughened glass substrate and a composite metal film layer laminated on the substrate, and is toughened coated glass with three metal silver film layers. After a common glass substrate is plated with a composite metal film layer, toughening treatment is carried out, and after toughening treatment, the metal film layers reflect, interfere and refract light, so that the glass is light blue in the sun, is low-radiation coated toughened glass, and has good decoration and energy-saving effects; the visible light transmittance is high, the outdoor visible light reflectivity is low, the solar energy transmittance is low, and the solar energy reflectivity is high; the prepared hollow glass has better energy-saving effects of light control, heat insulation, heat preservation and the like, so that a building is closer to the nature, and the hollow glass is used for near-zero-energy-consumption buildings, so that the building meets the requirements of the national standard GB55015-2021 General Standard for Building Energy conservation and Renewable Energy Utilization.

The invention discloses low-radiation coated tempered glass, which comprises a tempered glass substrate and a composite metal film layer laminated on the substrate, and is tempered coated glass with three metal silver film layers. After a common glass substrate is plated with a composite metal film layer, toughening treatment is carried out, and after toughening treatment, the metal film layers reflect, interfere and refract light, so that the glass is light green (French green) in the sun, and the decoration and energy-saving effects are good; the visible light transmittance is high, the outdoor visible light reflectivity is low, the solar energy transmittance is low, and the solar energy reflectivity is high; the prepared hollow glass has better energy-saving effects of light control, heat insulation, heat preservation and the like, so that a building is closer to the nature, and the hollow glass is used for near-zero-energy-consumption buildings, so that the building meets the requirements of the national standard GB55015-2021 General Standard for Building Energy conservation and Renewable Energy Utilization.

The invention discloses blue low-radiation coated glass for near-zero energy consumption buildings, which comprises a glass substrate and a composite metal film layer laminated on the glass substrate, and is coated glass with three metal silver film layers. According to the invention, one of the multiple composite metal film layers on the common colorless transparent float glass substrate reflects and interferes with light, so that the coated glass is light blue in the sun and has good decoration and energy-saving effects; the hollow glass is high in visible light transmittance, low in outdoor visible light reflectivity, low in solar energy transmittance and high in solar energy reflectivity, and can be made into hollow glass to achieve better energy-saving effects such as light control, heat insulation and the like, so that a building is closer to the nature and is fused with the nature.

The invention discloses coated toughened glass, which comprises a toughened glass substrate and a composite metal film layer laminated on the substrate, and is coated toughened glass with three metal silver film layers. According to the invention, after a common glass substrate is plated with the composite metal film layers, toughening treatment is carried out, and after the toughening treatment, the metal film layers reflect, interfere and refract light, so that the glass is light gray in the sun, and the decoration and energy-saving effects are good; the visible light transmittance is high, the outdoor visible light reflectivity is low, the solar energy transmittance is low, and the solar energy reflectivity is high; the prepared hollow glass has better energy-saving effects of light control, heat insulation, heat preservation and the like, so that a building is closer to the nature, and the hollow glass is used for near-zero-energy-consumption buildings, so that the building meets the requirements of the national standard GB55015-2021 General Standard for Building Energy conservation and Renewable Energy Utilization.

Provided herein are low resistance metallization stack structures for logic and memory applications and related methods of fabrication. The methods involve forming bulk conductive films on thin low resistivity transition metal layers that have large grain size. The bulk conductive films follow the grains of the low resistivity transition metal films, resulting in large grain size. Also provided are devices including template layers and bulk films.

The invention discloses a preparation method of low-radiation coated toughened glass, which comprises the following steps: sintering a target material, carrying out moisture removal and degassing pretreatment on glass, carrying out coating treatment and toughening treatment, and laminating a composite metal film layer on a toughened glass substrate to prepare the toughened coated glass with three metal silver film layers. According to the method disclosed by the invention, after a common glass substrate is plated with the composite metal film layers, toughening treatment is carried out, and after the toughening treatment, all the metal film layers reflect, interfere and refract light, so that the glass disclosed by the invention is light green (French green) in the sun, and the decoration and energy-saving effects are good; the visible light transmittance is high, the outdoor visible light reflectivity is low, the solar energy transmittance is low, and the solar energy reflectivity is high; the prepared hollow glass has better energy-saving effects such as light control, heat insulation and heat preservation, enables buildings to be closer to the nature, is used for near-zero energy consumption buildings, and enables the buildings to meet the requirements of the national standard General Standard for Building Energy conservation and Renewable Energy Utilization.

The invention discloses a preparation method of light gray tempered low-emissivity coated glass. The preparation method comprises the following steps: sintering a target material, carrying out moisture removal and degassing pretreatment on glass, carrying out coating treatment and tempering treatment, and laminating a composite metal film layer on a tempered glass substrate to prepare the tempered coated glass with three metal silver film layers. According to the method, after the common glass substrate is plated with the composite metal film layers, toughening treatment is carried out, and after toughening treatment, the metal film layers reflect, interfere and refract light, so that the glass is light gray in the sun, and the decoration and energy-saving effects are good; the visible light transmittance is high, the outdoor visible light reflectivity is low, the solar energy transmittance is low, and the solar energy reflectivity is high; the prepared hollow glass has better energy-saving effects such as light control, heat insulation and heat preservation, enables buildings to be closer to the nature, is used for near-zero energy consumption buildings, and enables the buildings to meet the requirements of the national standard General Standard for Building Energy conservation and Renewable Energy Utilization.

The invention discloses a method for preparing low-radiation coated toughened glass, which comprises the following steps: sintering a target material, carrying out moisture removal and degassing pretreatment on glass, carrying out coating treatment and toughening treatment, and laminating a composite metal film layer on a toughened glass substrate to prepare light blue toughened coated glass with three metal silver film layers. According to the method, after a common glass substrate is plated with the composite metal film layers, toughening treatment is carried out, and after toughening treatment, the metal film layers reflect, interfere and refract light, so that the glass is light blue in the sun, and the decoration and energy-saving effects are good; the visible light transmittance is high, the outdoor visible light reflectivity is low, the solar energy transmittance is low, and the solar energy reflectivity is high; and the prepared hollow glass has better energy-saving effects such as light control, heat insulation and the like, so that a building is closer to nature.

The invention relates to the technical field of current collectors, in particular to a flame-retardant composite current collector and a preparation method thereof.The flame-retardant composite current collector is composed of a base film layer, metal film layers deposited on the two faces of the base film layer and flame-retardant layers formed by curing flame-retardant coatings and coated on the surfaces of the metal film layers; the preparation method comprises the following steps: S1, mixing the modified polypropylene resin, the reinforcing component, the antioxidant, the lubricant, the coupling agent and the compatilizer to obtain a mixture; s2, carrying out melt extrusion and tape casting on the mixture, and stretching through a two-way stretching process to form a base film layer; s3, metal film layers are deposited on the two faces of the base film layer, and hot press molding is conducted; s4, coating a flame-retardant coating, drying and curing to obtain the flame-retardant composite current collector, the prepared flame-retardant composite current collector has excellent flame retardance, excellent mechanical property and thermal aging resistance and high peel strength, the binding force of the metal film layer and the base film layer is firm, and the quality and safety of the composite current collector are effectively improved.

Metal films, such as molybdenum films are deposited on a semiconductor substrate having one or more recessed features in a deposition process modulated by addition of a halogen-containing compound (e.g., an alkyl halide). In some implementations, a pre-treatment of a substrate with a halogen-containing compound is performed prior to contacting the substrate with a metal-containing precursor and a reducing agent. In some embodiments, the pre-treatment is performed such that the halogen-containing compound modifies the surface of the substrate to a greater degree in a field region of the substrate and near the opening of the recessed feature, as compared to the bottom portion of the recessed feature, where the modification of the substrate inhibits deposition of the metal. As a result, deposition of metals with improved step coverage can be achieved. In some implementations, modulation of deposition by halogen-containing compounds is used to achieve bottom-up metal growth in recessed features.

The invention discloses a preparation method of tempered low-emissivity coated glass. The preparation method comprises the following steps: sintering a target material, carrying out moisture removal and degassing pretreatment on glass, carrying out coating treatment and tempering treatment, and laminating a composite metal film layer on a tempered glass substrate to prepare the tempered coated glass with three metal silver film layers. According to the method, after a common glass substrate is plated with the composite metal film layers, toughening treatment is carried out, and after toughening treatment, the metal film layers reflect, interfere and refract light, so that the glass is light blue in the sun, and the decoration and energy-saving effects are good; the visible light transmittance is high, the outdoor visible light reflectivity is low, the solar energy transmittance is low, and the solar energy reflectivity is high; the prepared hollow glass has better energy-saving effects of light control, heat insulation, heat preservation and the like, enables buildings to be closer to nature, is used for near-zero-energy-consumption buildings, enables the buildings to meet the requirements of the national standard General Standard for Energy conservation and Renewable Energy Utilization of Building, and has great contribution and significance on carbon neutralization and carbon peak reaching of the buildings.

The invention relates to the technical field of isotope production, in particular to a welding-free target capsule for isotope production and a manufacturing method of the welding-free target capsule. The welding-free target capsule comprises a target material used for generating isotopes under bombardment of high-energy particles; the first metal film covers one side of the target material; the second metal film covers the other side of the target material; wherein the first metal film and the second metal film are made of materials with ductility; the edge of the first metal film and the edge of the second metal film are attached to each other on the peripheral side of the target material and are folded into an annular sealing structure. In the invention, the metal film with good ductility is used as a coating material of the target material, and the sealing structure is formed by folding the connecting part of the metal film, so that the target capsule can be ensured to efficiently dissipate heat in a water-cooling environment, the manufacturing mode of the sealing structure can be improved, the manufacturing steps of the sealing structure are simple and easy to implement, and the manufacturing cost of the target capsule is further reduced.

The invention discloses a method for improving the micro LED mesa morphology by using multilayer masks and segmented etching, and belongs to the technical field of semiconductor processing technologies. The method comprises the following steps: firstly, depositing a SiO2 mask layer on the surface of an epitaxial layer, and then obtaining a photoresist through hole structure through spin coating, exposure and development; then, a chromium metal film layer is deposited and then lifted away from the photoresist, and a patterned chromium metal film layer is prepared; taking the patterned chromium metal film layer as a mask, and etching to prepare a patterned SiO2 mask layer; etching the patterned chromium metal film layer and the upper region of the epitaxial layer by using an etching gas with a high Cl2 / BCl3 flow ratio, and etching the patterned SiO2 mask layer and the lower region of the epitaxial layer by using an etching gas with a low Cl2 / BCl3 flow ratio; by adjusting the time of the two etching processes and the flow parameters of the etching gas, the time point when the chromium metal film layer is consumed can be controlled, and the effects of controlling the up-down diameter of the table top and controlling the etching angle are achieved.

The utility model discloses a crystal film fluidized bed treatment system aiming at high-hardness water treatment, the system mainly comprises a crystallization fluidized bed and a multi-layer flat film microfiltration device, and the crystallization fluidized bed device is of an inner-layer and outer-layer cylinder structure and is provided with a slag discharge pipe, a water inlet pipe, an annular dosing pipe, an inclined pipe enhanced separation device and a water outlet pipe; the multi-layer flat membrane microfiltration equipment is provided with a water inlet pipe, a water outlet pipe, a buffer water tank, a cleaning mechanism, a metal membrane, a sludge tank and the like; when the system runs, high-hardness raw water firstly enters the crystallization fluidized bed for softening treatment, and then enters the multi-layer flat membrane microfiltration equipment for further removing hardness and turbidity after treatment; the adopted system combining the crystallization fluidized bed and the flat membrane microfiltration equipment can effectively remove the hardness and turbidity of water, flocculation and coagulation agents do not need to be added, the adverse effect of the coagulation agents on a subsequent membrane system is effectively avoided while the operation cost of the system is reduced, the hardness and turbidity of the water can be effectively removed, and the service life of the system is prolonged. Various ions in the water are synchronously removed.

The invention relates to the technical field of polypropylene capacitance films and preparation methods thereof, in particular to a high-temperature-resistant polypropylene capacitance film and a preparation method thereof.The preparation method comprises the steps that a base film sheet comprising a first edge layer, a second edge layer and a heat-resistant layer is prepared through a three-layer co-extrusion extruder, and the heat-resistant layer is located between the first edge layer and the second edge layer; stretching the base film sheet to form a capacitance film base film; and plating a metal film on the surface of the capacitance film base film to obtain the capacitance film. According to the high-temperature-resistant polypropylene capacitor film prepared by the method, the heat-resistant layer can fundamentally improve the high-temperature-resistant performance of the base film of the capacitor film, so that the overall high-temperature-resistant performance of the capacitor film is improved, and the production is simple. Besides, metal ions and ash content are not introduced, the breakdown voltage of the capacitor film product is not reduced, the first edge layer and the second edge layer do not influence the processing performance of the high-temperature-resistant polypropylene capacitor film and the control of the surface roughness, and the subsequent process is not influenced.

A module includes: a substrate having a first surface; a first component mounted on the first surface; a first sealing resin layer disposed to cover a side surface of the first component and the first surface; and a redistribution layer covering a surface of the first sealing resin layer on a side far from the substrate. The redistribution layer includes: a first metal film disposed to correspond to a projection area of the first component; a first insulating film covering a surface of the first metal film on a side far from the substrate; and a first group of conductor vias passing through the first insulating film and protruding from the first metal film in a direction away from the substrate.

The invention relates to the technical field of optical elements, in particular to an optical filter applied to a medical communication sapphire window. The optical filter comprises a substrate, a main film system, a secondary film system and a metal film system, the main film system is located on one side of the substrate, the secondary film system is located on the other side, opposite to the main film system, of the substrate, the metal film system is located on the upper side of the main film system, the secondary film system is located on the other side, opposite to the main film system, of the substrate, and the metal film system is located on the lower side of the main film system. The main film system comprises four high-refractive-index film layers and four low-refractive-index film layers which are sequentially and alternately overlapped from the substrate to the outside according to the structure of the main film system, and the secondary film system comprises four high-refractive-index film layers and four low-refractive-index film layers which are sequentially and alternately overlapped from the substrate to the outside according to the structure of the secondary film system. The metal film system comprises three layers of Ti, Ni and Au metal film layers which are sequentially and alternately overlapped from the main film system to the outside according to the structure of the metal film system, and the optical filter can realize high transmittance and uniform signal intensity within the wavelength range of a communication channel of 1200-1700 nm, so that high communication efficiency is realized.

Provided herein are low resistance metallization stack structures for logic and memory applications and related methods of fabrication. In some embodiments, thin metal oxynitride or metal nitride nucleation layers are deposited followed by deposition of a pure metal conductor. The nucleation layer is amorphous, which templates large pure metal film grain growth and reduced resistivity. Further, certain embodiments of the methods described below convert most or all of the metal oxynitride nucleation layer to a pure metal layer, further lowering the resistivity.

The invention discloses a metal film thickness measuring method, device and equipment, a polishing method and a storage medium, and the method comprises the steps: detecting the thickness of a metal film on a wafer through an eddy current sensor, and obtaining a measurement signal outputted by the eddy current sensor; obtaining a measurement temperature; obtaining a measurement thickness value according to the measurement signal and the base value signal; obtaining a thickness compensation value according to the measured temperature and the base value temperature; and determining the thickness of the metal film according to the measured thickness value and the thickness compensation value. According to the method and the device, the thickness compensation value for compensating the measurement signal obtained by detection of the eddy current sensor is determined through the measurement temperature and the base value temperature when the thickness of the metal film on the wafer is detected, the influence of the working environment temperature on the eddy current sensor can be eliminated to a great extent, and the precision of metal film thickness detection is further improved.

The invention relates to an antireflection film, an optical conduction assembly, a camera module and electronic equipment. The antireflection film is provided with a light inlet side and a light outlet side and comprises a first mixture film layer, a metal film layer, a second mixture film layer and an inorganic compound film layer which are sequentially stacked in the direction from the light inlet side to the light outlet side. The first mixture film layer and the second mixture film layer are made of aluminum oxide-praseodymium oxide mixed oxide. According to the antireflection film, the materials and the arrangement of the film layers are designed, so that the film layers can be matched with one another, the transmittance of the antireflection film is effectively improved, the reflectivity of the antireflection film is reduced, and the spectral bandwidth of the antireflection film is widened.

The invention relates to a test method of an organic electrochemical transistor tuning dual-mode flexible band-pass filter. The IPC classification number is G01N3 / 32. According to the organic electrochemical transistor tuning dual-mode flexible band-pass filter, the thickness of a silver metal film is gradually increased from the inner edge to the outer edge of a leading-out end part, connected with a filter functional area, of the organic electrochemical transistor tuning dual-mode flexible band-pass filter, and the thickness is gradually increased to 2-3 times from the thickness of the filter functional area; and an interface stress tolerance area between the silver metal film layer and the polyimide film is gradually transferred to the leading-out end part and presents a gradual change trend. When bending, folding and twisting tests are carried out on the flexible band-pass filter, the problems that the leading-out end part is cracked, fractured, peeled off and the like earlier than the functional area of the filter can be avoided, so that the mechanical property of the flexible band-pass filter can be accurately, objectively and completely tested in the whole test process; and the condition that the leading-out end part is damaged in advance when the mechanical property of the filter is not completely tested is avoided.

The invention discloses a quantum sensor based on an optical fiber type diamond NV color center and a preparation method of the quantum sensor. The quantum sensor comprises diamond particles used for generating the diamond NV color center emitting fluorescence; the multimode optical fiber is used for bearing diamond particles and transmitting optical signals; the diamond particles and the multimode optical fiber form a metal microcavity through silver plating on the surfaces, the metal microcavity is used for binding light to circulate and converge in the cavity, the diamond particles and the multimode optical fiber are coupled, the metal Ag film is plated on the surfaces of the diamond particles and the multimode optical fiber to form a metal microcavity structure, the binding light continuously circulates and converges in the cavity, and therefore the binding light can be effectively restrained. The laser excitation efficiency and the fluorescence collection efficiency are effectively improved, the signal intensity detected by the photoelectric detector is enhanced, and high-precision quantum information detection of NV color center spin characteristics and the like is realized, so that ultra-high spatial resolution detection of a physical field is effectively served.

The invention belongs to the field of nano biosensors, and discloses an in-situ preparation method of a silicon-gold-aptamer nanowire array for escherichia coli detection, which comprises the following steps: preparing a nanowire array material on a silicon wafer by using an in-situ synthesis method, loading gold nanoparticles and escherichia coli aptamers on the nanowire array in situ by using a chemical reduction method, and preparing the silicon-gold-aptamer nanowire array. A metal film is plated on the back surface of the silicon wafer, and the surface is connected with a circuit when the silicon wafer is used, so that an electric signal generated by the silicon-gold-aptamer nanowire array in a test is input into the circuit through conduction of the silicon wafer. The escherichia coli aptamer can specifically adsorb escherichia coli in a test solution to the surface of a material and generate current response linearly related to the concentration of a bacterial solution, and the sensor has good sensitivity due to the huge surface area of the in-situ synthesized electrode with the nano array structure. The high-performance nano biosensor provides a novel practical method for on-site rapid detection of food-borne pathogenic bacteria.

The present invention discloses a magnetic field and temperature sensor of a metallized fiber grating cascade F-P structure, comprising a laser light source (1), an optical fiber circulator (2), a sensing probe (3), a first signal processing module (4), and a second signal processing module (5), wherein the sensing probe (3) comprises an optical fiber grating (3-1), an aluminum metal film (3-2), a magnetic fluid (3-3), a capillary glass tube (3-4), an epoxy resin (3-5), and a single-mode optical fiber (3-6); the optical fiber grating and the single-mode optical fiber are axially aligned and arranged at a micrometer interval in the capillary glass tube to form an F-P cavity; the F-P cavity filled with magnetic fluid utilizes the adjustable refractive index characteristics of the magnetic fluid to change the equivalent cavity length of the F-P cavity, thereby realizing magnetic field measurement; the metallized optical fiber grating utilizes the grating thermal expansion effect and the increased sensitivity of the metal film to change the grating period, thereby realizing temperature measurement; and the double parameter measurement of magnetic field and temperature is realized by measuring the drift of the reflection spectrum and the transmission spectrum.

The invention discloses a multi-mode reconfigurable diamond solar-blind ultraviolet photoelectric transistor and a preparation method thereof, and aims to solve the problem of separation of sensing, storage and calculation frameworks of an existing artificial vision system. According to the diamond solar blind ultraviolet photoelectric transistor, a terminal is arranged on the surface of a diamond substrate, a first metal film layer is deposited on the upper surface of the diamond substrate to serve as a first contact electrode, the first contact electrode is Schottky contact, and a second contact electrode is a metal probe. The second contact electrode is in needle point contact with the upper surface of the diamond substrate, a second metal film layer is deposited on the lower surface of the diamond substrate to serve as a third contact electrode, and the third contact electrode is Schottky contact. According to the reconfigurable diamond solar blind ultraviolet photoelectric transistor, different functions of an avalanche detector, an optical memory, visual synapse and the like are integrated in one device, and large gain rising of the diamond detector and multi-mode intelligent sensing of a single device are achieved.

The invention discloses a metal diaphragm capacitor composite vacuum gauge, and relates to the technical field of vacuum gauges, the metal diaphragm capacitor composite vacuum gauge comprises a vacuum gauge body and a control module, the lower side of the vacuum gauge body is fixedly connected with a lower sealing block, the lower side of the lower sealing block is fixedly connected with a connecting pipe, and the connecting pipe is communicated with the interior of the vacuum gauge body. The upper side of the inner wall of the vacuum gauge body is fixedly connected with an electrode, the lower side of the electrode is provided with a capacitor diaphragm, the electrode is not in contact with the capacitor diaphragm, a buffer cavity is formed in the connecting pipe, a buffer mechanism is arranged in the buffer cavity, and a detection mechanism is arranged on the outer side of the connecting pipe. According to the invention, through the arrangement of the connecting pipe, the gas channel and the stop block, high-speed gas upwelling can be effectively blocked when gas flow recoil occurs, instantaneous impact on the capacitor diaphragm is relieved, reading deviation or device damage caused by diaphragm deformation quantity overrun is avoided, and the system has the characteristics of high practicability and improvement of the adaptability of the system to complex working conditions.