82 results about "Scattering effect" patented technology

The invention discloses a real haze image defogging method based on a haze degradation model. The method comprises the following steps: constructing a haze degradation model fusing multiple scattering effects and multiple image degradation factors; using the haze degradation model to construct a training data set including the clear image and the corresponding pseudo haze image; constructing a defogging network for a real haze scene; training the defogging network by adopting the training data set until a preset loss function is converged; and inputting a to-be-defogged image into the trained defogging network to obtain a defogging result. According to the haze degradation model constructed by the invention, the difference between a synthetic domain and a real domain is effectively relieved; a designed space-frequency hybrid module improves the adaptability of the model to complex degradation characteristics; the prior-guided feed-forward network fully excavates and fuses dark channel prior information, and the sensing and modeling capability of the model to the haze area is effectively enhanced.

The invention relates to a method for determining the layer thickness of an at least partially transparent surface coating on the surface of a substrate, using a measuring device for emitting focused radiation. The invention is characterized in that the distance between the surface of the substrate and the measuring device for emitting focused radiation is changed by a relative movement between the measuring device and the substrate, wherein the image of the radiation is captured in different relative positions, wherein in the case of an image with a clear outline edge, focusing is inferred at the interface between the surface coating and the substrate and the current relative position is stored as the first position, and wherein in the case of an image surrounded by scattering effects, focusing is inferred at the interface between the surface coating and the air and the current relative position is stored as the second position, after which the difference between the first and second positions is used to determine theTaking into account the refractive index of the transparent surface coating, the layer thickness of the at least partially transparent surface coating is determined.

The invention relates to a film coating device, a film and a preparation method of the film. The film coating device comprises a vacuum chamber, a first-stage rotating disc, a second-stage rotating disc and a film coating source, wherein the first-stage rotating disc, the second-stage rotating disc and the film coating source are located in the vacuum chamber; according to the preparation device system, through the arrangement of the first-stage rotating disc and the second-stage rotating disc, deposition during thin film evaporation has a certain periodic characteristic, so that the expected scattering effect is generated, and the thickness of the scattering thin film only needs several microns when the expected scattering degree is generated; in addition, through the arrangement of the film coating source, the thin film with the high scattering rate can be obtained, the hardness and adhesive force of the obtained thin film can be improved, and the quality of the thin film is improved.

The application discloses a deep ultraviolet light emitting diode with light scattering structure and a preparation method thereof. The light emitting diode comprises, in sequence along a wafer epitaxial growth direction, a substrate layer, a buffer layer and an N-type semiconductor transmission layer; wherein the N-type semiconductor transmission layer has an upper and lower part in shape, a multi-quantum well active layer, a P-type semiconductor transmission layer and a P-GaN contact layer are sequentially arranged on the surface of the upper part of the N-type semiconductor transmission layer; and a horizontal direction light scattering structure layer and a vertical direction light scattering structure are respectively arranged in the inner part of the upper and lower parts of the N-type semiconductor transmission layer. The application improves the scattering effect of light in the N-type semiconductor transmission layer, breaks the light waveguide effect of the N-type semiconductor transmission layer, effectively blocks the light propagation to the metal n electrode, simultaneously scatters the light, improves the bottom light extraction efficiency of the deep ultraviolet LED and improves the light extraction efficiency.

The embodiment of the invention discloses a display system, and the system comprises an optical fiber scanning array which comprises a plurality of optical fiber scanning units, the optical fiber scanning units are densely arranged in the transverse direction of the optical fiber scanning array, the number of the optical fiber scanning units arranged in the transverse direction is far greater than the number of the optical fiber scanning units arranged in the longitudinal direction, and the number of the optical fiber scanning units arranged in the longitudinal direction is greater than the number of the optical fiber scanning units arranged in the longitudinal direction. The included angle between the adjacent optical fiber scanning units in the transverse direction and the display center is related to the divergence angle of the emitted light. The directional scattering screen is configured to perform directional scattering in the longitudinal direction; light emitted by the optical fiber scanning array forms a display space range for imaging on the other side of the directional scattering screen through the directional scattering effect of the directional scattering screen.

The present application belongs to the field of automobile head-up display technology, and relates to a vehicle-mounted head-up display optical film with light scattering function and a preparation method thereof. The present application adopts a heat-sensitive shape memory idea, utilizes the light-sensitive characteristics and shape memory function of a light-heat effect type shape memory material, and sets a dynamic scattering layer scattering part. When the front sunlight is irradiated, the scattering part is raised, so that the sunlight is scattered to other directions through the scattering effect of light. Further, the scattering layer substrate is set as an encapsulated scattering solution. The shape memory material in the scattering solution is deformed and curled when irradiated by sunlight, absorbs and reflects part of the light, thereby further reducing the penetration of sunlight into the display film into the driver's line of sight. Moreover, reflective particles and light-absorbing particles are added in the scattering solution, further reducing the penetration of sunlight into the display film, thereby preventing or reducing sunlight from directly entering the driver's eyes from multiple aspects, and further improving the safety of driving.

The invention relates to high-fog and high-light-transmittance diffusion resin and a preparation method thereof, and belongs to the technical field of high polymer materials. A mixed system with certain refraction and scattering effects is formed by utilizing the incompatibility between polypropylene and polycarbonate, and the surface of talcum powder is coated with organic silicon and polypropylene chain segments, so that the nucleating effect of the talcum powder can be exerted, the transparency and mechanical strength of the material are improved, and the mechanical property of the material is improved. The compatibility of the talcum powder and a resin system can also be improved, the dispersion uniformity of the talcum powder is further improved, so that the light transmission uniformity and the mechanical property are improved, and the organic silicon layer and the polypropylene layer coated on the surface of the talcum powder can enable light to be refracted and penetrated for multiple times, so that the light dispersion effect and the dodging and light transmission effects are improved.

This application discloses a driving substrate and a display panel. The driving substrate includes a substrate, a first gate, a buffer layer, an active layer, a gate insulating layer, a second gate, an interlayer dielectric layer, a source, and a drain. The active layer includes a first active sublayer and a second active sublayer sequentially disposed on the buffer layer. The band gaps of the first and second active sublayers are different. Since the active layer includes a first active sublayer and a second active sublayer with different band gaps, the first and second active sublayers form a heterojunction. Due to the bending of the band gap at the heterojunction interface, a two-dimensional electron gas is formed at the contact interface between the first and second active layers. The two-dimensional electron gas is confined to move within a two-dimensional plane, thereby reducing the scattering effect of ionized impurity centers and thus exhibiting good transport properties, effectively improving the carrier mobility of the driving substrate.

This invention relates to the field of laser particle size analyzer technology, and more particularly to a method for measuring particle refractive index in a laser particle size analyzer. By modulating a solution containing particles of different concentrations as the measurement sample, and acquiring concentration measurement data sequences and scattered light intensity data sequences in real time, while dynamically adjusting the laser particle size analyzer parameters based on the real-time calculated signal-to-noise ratio and concentration variation coefficient, the method achieves the ability to acquire high-quality scattered light data under multiple concentration conditions. This effectively overcomes the data distortion problem that may occur in single-concentration measurements due to inter-particle complex scattering effects or weak signals. Through systematic concentration sequence design and real-time parameter optimization, a rich and reliable data foundation is provided for subsequent refractive index inversion, improving the accuracy and reliability of the measurement results. This method solves the technical problem that existing methods for determining particle refractive index mainly rely on experience, resulting in strong subjectivity and difficulty in guaranteeing accuracy.

Embodiments of this disclosure provide a method, apparatus, and storage medium for electron beam exposure correction. The method includes: determining a first dose distribution for electron beam exposure by performing electron beam proximity effect correction on a target pattern based on a predetermined dose distribution, the first dose distribution indicating a set of dose adjustment values ​​for compensating for scattering effects during electron beam exposure on the target pattern; determining a second dose distribution for electron beam exposure by performing electron beam haze effect correction on the target pattern based on the first dose distribution, the second dose distribution indicating a set of dose adjustment values ​​for compensating for haze effects during electron beam exposure on the target pattern; and determining a target dose distribution for electron beam exposure by performing electron beam proximity effect correction on the target pattern based on the first and second dose distributions.

The invention discloses an anti-dazzle semitransparent organic photovoltaic glass window based on thermal nanoimprint lithography and a preparation method of the anti-dazzle semitransparent organic photovoltaic glass window, and belongs to the technical field of photovoltaic building integration. A submicron grating structure is prepared on the surface of a ternary blending active layer through a thermal nanoimprint process, and a device structure with a metasurface light field regulation effect is formed after spin coating of an electron transport layer and evaporation of a metal top electrode. By introducing a grating structure and utilizing diffraction and scattering effects, energy of reflected light is redistributed to a non-mirror direction, zero-order mirror reflection is remarkably inhibited, glare is effectively inhibited, light pollution is reduced, and meanwhile, the polarization degree of the reflected light is reduced and the visual comfort is improved by differentially modulating S and P polarized light; for transmission light, the grating excites multi-order diffraction, resulting in angle dispersion of a light beam propagation path, increase of the optical path of light in the active layer, and enhancement of photon capture and absorption, thereby significantly improving the short-circuit current density and power conversion efficiency of the device while ensuring high light transmission.

The invention discloses a p-type copper doped antimony bismuth tellurium thermoelectric material, a preparation method, a module and a system, and belongs to the technical field of thermoelectric materials. The chemical formula of the material is Bi < 0.5 > Sb < 1.5 > Te < 3 > Cu < x >, wherein x is equal to 0.0025. A trace amount of copper element is accurately doped into a Bi0. 5Sb1. 5Te3 matrix, so that the carrier concentration is remarkably improved, the bipolar effect is inhibited, and meanwhile, the lattice thermal conductivity is effectively reduced by utilizing point defects and the phonon scattering effect of second-phase CuTe, so that collaborative optimization of electrical and thermal properties is realized. The average dimensionless thermoelectric figure of merit (ZT) of the material in a temperature zone of 30-100 DEG C is up to 1.46, which is superior to that of the existing commercial material. The preparation method combines vacuum melting, ball milling and spark plasma sintering (SPS) processes, and is simple and convenient in process and high in repeatability. And further high-pressure torsion (HPT) post-treatment can further refine the grains and reduce the heat conductivity. The material is particularly suitable for an energy recovery and self-energized monitoring system of converter valve low-temperature waste heat.

The invention discloses a thermosensitive intelligent device capable of regulating and controlling sunlight reflectivity in a large range and a preparation method of the thermosensitive intelligent device, and belongs to the field of intelligent materials and energy-saving buildings. The device is composed of an upper thermosensitive phase change layer and a lower sunlight reflecting layer. Wherein the lower layer takes polyvinylidene fluoride (PVDF) as a matrix, Al2O3 and SiO2 nanoparticles with two different sizes are doped, and a composite structure with a multi-stage scattering effect is formed through curing, so that the full-band sunlight reflecting capacity can be remarkably improved. And the upper layer is a reversible thermochromic interlayer formed by dissolving crystal violet lactone (CVL), bisphenol A and tetradecanol in a transparent substrate. The core mechanism is that at low temperature, the lower layer can serve as a light trap layer, light absorption of the upper layer is enhanced through multiple reflections, and the heating efficiency is improved; at high temperature, the upper layer becomes transparent, the overall reflectivity of the device is dominated by the lower layer, and efficient refrigeration is achieved. The device can regulate and control the sunlight reflectivity (greater than 60%) according to the environment temperature, and has a good application prospect in the field of energy conservation.

The application provides an EUV photoresist topography and roughness control method and device based on automatic parameter optimization, related products, and relates to extreme ultraviolet lithography technology and semiconductor manufacturing field. The method comprises constructing a random exposure model, simulating secondary electron random walk and scattering effect, and establishing a near neighbor condensation crosslinking mechanism based on lattice topological constraints; a discrete random development model is constructed based on the Gillese ratio algorithm, and the competitive reaction between the developing solution and the metal oxide core is simulated; the quantum yield, the electron blur length, and the number of development critical sites are used as optimization variables, a fitness function is constructed based on the three-dimensional topographic feature parameters of the photoresist, and the target parameter combination is calculated and output by an optimization algorithm. The application can realize fine control of photoresist topography and effective suppression of roughness, and improve the process window and manufacturing yield of extreme ultraviolet lithography.

This invention discloses a universal detection method applicable to coal with multiple particle sizes. It includes: first, acquiring a coal sample set under a target scenario, along with the corresponding near-infrared diffuse reflectance spectra and analytical properties of each coal sample, where all coal samples in the set have the same particle size; second, determining the property analysis model and reference wavelength based on the near-infrared diffuse reflectance spectra and analytical properties of each coal sample in the set; finally, acquiring the near-infrared diffuse reflectance spectrum of an unknown coal sample, preprocessing the spectrum using the reference wavelength to obtain the corresponding standardized spectrum, and inputting it into the property analysis model, which then outputs the analytical properties of the unknown coal sample. The method proposed in this invention is applicable to coal particle sizes ranging from ultrafine powder, medium particles, and coarse particles to in-situ rough surfaces and in-situ smooth surfaces, significantly eliminating spectral scattering effects caused by the physical state of the sample and improving the accuracy of quantitative coal quality analysis.

This invention discloses an underwater target reflectance inversion method based on an underwater transmission model, comprising: acquiring the original digital values ​​of the underwater target collected by a hyperspectral camera; combining the built-in radiometric calibration parameters of the hyperspectral camera; converting the original digital values ​​into radiance based on the sensor pre-calibration response characteristics; physically modeling the water absorption effect, scattering effect, and path radiation effect during underwater light propagation to determine the linear mapping relationship between radiance and target reflectance; constructing a training radiative transmission model using a non-negative linear regression model; using a calibrated target with known reflectance as a sample to train the radiative transmission model between the original digital values ​​and the target reflectance, and solving for the mapping parameters between the two; and based on the original digital values ​​and mapping parameters of the underwater target to be reconstructed, using the trained radiative transmission model to invert and obtain the true reflectance of the target, thus completing the spectral reconstruction.

This invention relates to the field of copper alloy materials technology, and more particularly to a Cu-Fe-Re alloy based on controlled deformation and its preparation method. The alloy composition, by weight percentage, includes: 10%~20% iron, 0.2%~1.0% rare earth elements, and the balance being copper and unavoidable impurities; the rare earth elements are selected from one or more of cerium, lanthanum, and yttrium. Based on rare earth refinement, this invention, through precise control of the deformation amount, transforms the precipitated iron phase from coarse dendrites to dispersed droplets, which, after further deformation, evolve into a fibrous structure. The gaps between iron phases are significantly reduced, and the distribution becomes more compact. The optimized selection of the deformation amount achieves the best match between dislocation strengthening and second-phase strengthening. Simultaneously, in terms of electrical conductivity, by controlling the dislocation density and second-phase morphology, the electron scattering effect is minimized, achieving a synergistic improvement in strength and conductivity. The introduction of rare earth elements can purify grain boundaries, refine the as-cast structure, and improve the distribution of the second phase.

Provided in the present invention are a power semiconductor device and a manufacturing method therefor. The power semiconductor device comprises: a substrate, an epitaxial layer, a first doped region and a second doped region which have opposite conductivity types, a gate electrode, an electrode layer, and an insulating medium. The epitaxial layer is configured with a trench, and comprises a first epitaxial layer and a second epitaxial layer which have opposite conductivity types, wherein the first epitaxial layer is arranged between the second epitaxial layer and the substrate, and the trench penetrates through the second epitaxial layer and partially extends into the first epitaxial layer. The first doped region is formed in the second epitaxial layer and located on two opposite sides of the trench. The second doped region extends from the second epitaxial layer through an interface between the second epitaxial layer and the first epitaxial layer, partially extends into the first epitaxial layer, is located on the two opposite sides of the trench, and connects the first doped region to the first epitaxial layer so as to form a conductive channel. By means of epitaxially growing the second epitaxial layer on the first epitaxial layer, the implantation dosage for subsequently forming the second doped region, which has the same conductivity type as the second epitaxial layer, can be reduced so as to weaken the scattering effect, thus improving mobility.

The invention provides an X-ray composite radiation shielding material and a preparation method and application thereof, and belongs to the technical field of radiation protection. The photoelectric effect and the scattering effect of X-rays in the material are remarkably enhanced by using high atomic number elements contained in the metal oxide, so that the transmittance of the X-rays is effectively reduced. Meanwhile, the oxide material has good chemical stability and environmental friendliness, and the toxicity and aging problems caused by a traditional lead-based shielding material can be avoided. The prepared composite radiation shielding material has the advantages of being low in cost, light in weight, easy to process, good in flexibility, non-toxic, environmentally friendly and the like, the shielding efficiency of an X-ray shielding coating reaches up to 70% or above when the X-ray photon energy is 70 kV or below, and the generated secondary reflectance can be reduced by 35-80% compared with lead.

Provided in the present application is an optical lens, relating to the field of myopia prevention and control. The optical lens comprises a lens body and an optical module; side portions of the lens body include a convex surface and a concave surface which are opposite to one another; the optical module comprises at least two of a first optical element, a second optical element, and a third optical element which are connected to the side portions of the lens body, and has distribution features corresponding to the distribution of visual function cells on the ocular fundus of a lens wearer so as to provide multiple optical signal stimuli; the first optical element is an optical device having a scattering effect, the second optical element is a multi-point defocusing optical device, and the third optical element exhibits a continuous cylindrical lens structure. The optical lens of the present application integrates a scattering effect, multi-point defocusing technology, and a cylindrical lens structure; the optical lens can correspond to the ocular fundus visual function cell distribution patterns of various groups of people and provide multiple optical signal stimuli in a high-density visual function cell region close to the center of a light spot, allowing the lens to be adapted to different groups of people and improving a myopia prevention and control effect.

The invention discloses a broadband spectrum microscopic system based on Fourier single-pixel simultaneous imaging, and relates to the technical field of UVA-near infrared two-region multispectral synchronous imaging. The system comprises a broadband spectrum light source, a microscopic module, a Fourier structured light generation device, a scattering medium homogenization module, a multi-channel narrow-band detector array, a multi-channel data acquisition system and a calculation imaging processing unit. By arranging and combining a plurality of narrow-band single-point detectors and combining the scattering effect of ground glass, efficient synchronous acquisition and space uniform distribution of UVA to near-infrared two-region multispectral signals are realized, and the problems of complex hardware, low time resolution, spectral crosstalk, incomplete view and the like in traditional multispectral imaging are solved. According to the system, the Fourier single-pixel imaging principle is utilized, through the synergistic effect of structured light coding and a single-pixel detector, the view field consistency of multispectral images is ensured on the hardware level, later registration is not needed, meanwhile, the system has high sensitivity, low cost and compactness, and the system is suitable for high-resolution wide-spectrum microscopic imaging in the fields of biomedicine, material science and the like.

The utility model relates to the field of fishing gears, in particular to bionic bait which comprises a noctilucent body and hologram paper wrapping the surface of the noctilucent body, and nylon threads wrapping the whole noctilucent body and the hologram paper are wound on the outer surfaces of the noctilucent body and the hologram paper. After the structure enters water, the noctilucent body continuously emits a basic light source, the laser paper reflects external natural light, a fish luring light source is supplemented when noctilucent light is insufficient, and the nylon threads on the outer layer conduct composite optical modulation on reflected light of the laser paper and emitted light of the noctilucent body through multiple refraction and scattering effects.

The invention discloses a method for reducing the stimulated Raman scattering effect of liquid water and application of the method, and belongs to the technical field of water-guided laser processing. The method specifically comprises the following steps: adding potassium iodate into liquid water to obtain a potassium iodate aqueous solution; according to the invention, potassium iodate (KIO3) is added into liquid water, so that the stimulated Raman scattering effect of 532 nm green laser propagating in water can be greatly reduced, and the effect is better than that of pure water, KCl, NaCl and other substances. When the concentration of potassium iodate is 0.28 mol / L, the effect is optimal, and the stimulated Raman scattering energy can be reduced to about 30% of that of pure water. The solution is applied to a coupling water cavity of a water-guided laser instead of pure water, and stimulated Raman scattering of water can be reduced, so that the energy transmission efficiency is improved, the light beam quality is improved, the system stability is enhanced, the design difficulty is reduced, the processing efficiency and precision are guaranteed, and the solution has an important application prospect in the field of high-energy water-guided laser processing.

The invention relates to the technical field of VR, in particular to an electron beam generation method and device based on VR and a medium, and the method comprises the steps: generating a corresponding original electron beam 3D model in a VR environment based on electron beam parameters; determining a position mapping relation between a predefined VR environment and the original 2D image data; performing image fuzzy processing and image brightness processing according to the electron beam parameters to obtain updated 2D image data; and mapping the updated 2D image data as a texture to the surface of the original electron beam 3D model, and generating a standard electron beam 3D model in a VR environment. An electron scattering effect is simulated through image blurring processing, an edge blurring effect conforming to a physical rule is generated, and intensity distribution is mapped through image brightness processing, so that an electron beam in a VR environment presents a real optical characteristic that the center is bright and the edge is gradually weak, and the fidelity visualization of the physical attribute of the electron beam is realized.

The invention discloses an insulation surface roughness measuring method and device based on the terahertz wave scattering effect, and the method comprises the steps: preparing a plurality of insulation standard test pieces with different surface roughness, and calibrating the surface root mean square height Rq of the test pieces through a particle analyzer; obtaining terahertz time domain reflection signals of a plurality of test points on the surface of each insulation standard test piece, extracting reflection peak intensity and calculating corresponding reflectivity R; establishing a mapping relation between the composite reflectivity R of the broadband terahertz wave on the insulating surface and the surface root mean square height Rq based on the terahertz wave scattering effect, and forming a roughness measurement model; and carrying out terahertz reflection measurement on a to-be-measured insulation standard test piece to obtain the surface reflectivity, substituting the surface reflectivity into the roughness measurement model, and inverting the surface root mean square height Rq and the surface three-dimensional morphology of the to-be-measured insulation standard test piece.

The application is an underwater image super-resolution reconstruction method based on dynamic window and state space cooperation. The method comprises a shallow feature extraction module, a deep feature extraction module and an image reconstruction module, through the construction of a double-path feature interaction mechanism, the alternative learning of a dynamic window attention module and a visual state space module is adopted, the cooperative optimization of local detail enhancement and global context modeling is realized. A dynamic channel gate feedforward network is innovatively designed, through a channel weight dynamic adjustment mechanism guided by a global average pooling, adaptive fusion of multi-scale features is realized. The method effectively solves the problems of blur and contrast reduction of underwater images caused by scattering effect, the PSNR is 28.21dB in the x3 task of the USR-248 dataset, which is 0.35dB higher than that of SRFormer, the experimental results show that the model has excellent performance in objective evaluation index and subjective evaluation, and remarkable effect is achieved in detail recovery, which has significant technical effect and industrial application value.

The utility model relates to target chamber technical field, specifically disclose a kind of multi-beam irradiation target chamber, including cylinder, cylinder two ends are provided with front end cap and rear end cap, front end cap is located in the one end of cylinder near beam source, and is provided with several beam source connecting cylinders on front end cap, beam control mechanism is set between beam source connecting cylinder and beam passage, the other end of beam passage extends to the region where target material is located, and target material is set in cylinder by target material positioning mechanism. Through the one-to-one correspondence of multiple beam source connecting cylinders and the beam passage in cylinder, the independent on-off control of multi-beam can be realized;Through the setting of target material positioning frame and arc clamping block, both the stability of target material in the irradiation process is ensured, and the convenient replacement of target material can be realized. The problem that the space intersection between different beams when the multi-beam passes through the rigid channel in the conventional target chamber can cause serious scattering effect and non-intended energy deposition superposition;And target material switching and attitude adjustment difficulty.

The invention relates to the field of radar scattering signal interference analysis, and particularly discloses a maritime high building communication interference analysis method based on radar detection, which comprises the following steps: constructing an electromagnetic simulation environment model comprising a building, a radar and a communication system; configuring a plurality of simulation scenes with different radar angles and powers; simulating radar beam irradiation, tracking a scattering path, and identifying and extracting scattering fingerprints of a plurality of scattering centers; clustering the scattering centers based on a spatial proximity and electromagnetic consistency principle to form an equivalent scattering source and generate a distribution diagram of the equivalent scattering source; calculating the interference power of each equivalent scattering source at the communication node, and judging whether a scattering interference risk exists or not by combining the communication signal strength; and outputting the risk scene information. According to the method, refined modeling and efficient processing of the complex scattering effect of the building are achieved, interference source distribution can be revealed, the interference risk can be quantitatively evaluated, and technical support is provided for offshore electromagnetic compatibility design and interference investigation.

This invention relates to the field of hydrogen detection technology, and in particular to a low-concentration hydrogen detector and detection method based on a nano-palladium-nickel alloy, which can achieve high sensitivity and rapid response for detecting low-concentration hydrogen at room temperature. The detector includes: a nano-sensitive chip module with a palladium-nickel alloy-based nano-sensitive thin film, wherein the nano-sensitive thin film has a suspended micro / nano waveguide structure, and hydrogen is adsorbed and converted into a resistance change signal based on the surface scattering effect of the suspended micro / nano waveguide structure; a signal modulation circuit electrically connected to the nano-sensitive chip module, used to convert the resistance change signal into a differential voltage signal; and an intelligent calculation module electrically connected to the signal modulation circuit, used to perform inversion calculation on the differential voltage signal and output the hydrogen concentration value.