111 results about "Sensor materials" patented technology

The invention provides a multi-source data fusion intelligent control method for logarithmic curved surface machining, and relates to the technical field of data processing, and the method comprises the steps: 1, in a product machining process, through a geometric morphology detection sensor, a material characteristic perception sensor and a cutting state monitoring sensor, a cutting state is detected; obtaining multi-dimensional data reflecting the geometric morphology, the material characteristics and the cutting state of the curved surface, and forming a multi-source information stream; 2, carrying out real-time fusion on the multi-source information flow, and generating a comprehensive state description through space-time alignment and association of sensor data; the method comprises the following steps: converting data reflecting the geometric morphology of a curved surface into a point cloud set, identifying a feature point of a curvature mutation region as an original reference point, constructing two space reference straight lines, and calculating a space included angle between the two space reference straight lines to obtain an included angle region; through multi-source data fusion and intelligent control, the precision, efficiency and stability for logarithmic curved surface machining are improved, and the machining cost and the error rate are reduced.

The invention belongs to the technical field of preparation of sensor materials, and particularly relates to a room-temperature formaldehyde sensor material based on a catalytic principle as well as preparation and application of the room-temperature formaldehyde sensor material. The polyphenol is adsorbed on the surface of the semiconductor metal oxide through chelation, then noble metal ions are introduced, and the polyphenol on the surface of the semiconductor metal oxide can capture the noble metal ions and reduce and stabilize the noble metal ions on the surface of the semiconductor metal oxide; the noble metal nanoparticles are anchored on the surfaces of the semiconductor metal oxide nanoparticles, the original morphology of the semiconductor metal oxide is maintained, and the noble metal nanoparticles are loaded on the surfaces of the semiconductor metal oxide nanoparticles. The nano composite material not only has the intrinsic electrical and thermodynamic properties of semiconductor metal oxide, but also combines the catalytic characteristics of noble metal nanoparticles, so that the lower detection limit of formaldehyde is reduced to 3ppb, and the sensitivity of the sensor is remarkably improved. The preparation method of the room-temperature formaldehyde sensing material is simple and suitable for large-scale production, the raw materials are simple and easy to obtain, the cost is low, and the materials are environment-friendly.

The invention discloses a mechanical force-induced fluorescence discoloration sensor material as well as a preparation method and application thereof, and relates to the technical field of organic synthesis and fine chemical engineering. The preparation method comprises the following steps: step 1, carrying out heating reaction on 4-(1, 2, 2-triphenyl vinyl) benzaldehyde, 3-(2, 2-dicyano-1-(3, 4-diaminophenyl) vinyl) benzene-1-yl and a catalyst to prepare a compound 1-1; and 2, carrying out heating reaction on the obtained compound 1-1 and methyl iodide under the action of alkali and a solvent, and analyzing and purifying to obtain a compound 1-2. The compound disclosed by the invention is low in preparation cost, simple and convenient to operate and simple in method, the compound shows the material characteristic of mechanical force-induced fluorescence discoloration and can be applied to the fields of sensors, dyes, anti-counterfeiting and the like, and meanwhile, the synthesis method can be used for synthesis in the fields of fine organic chemical engineering such as luminescent materials, printing and dyeing technologies and the like.

The invention relates to a screening method and device of a lithium battery thermal runaway escape gas sensor. The method comprises the following steps: acquiring response recovery data obtained by performing a gas sensitive experiment on a plurality of sensors to be evaluated; according to the response recovery data, calculating to obtain a performance index; based on each performance index, executing a plurality of evaluation algorithms on each to-be-evaluated sensor to obtain a plurality of evaluation scores; performing fusion processing on the plurality of evaluation scores of each to-be-evaluated sensor to obtain a comprehensive evaluation score of each to-be-evaluated sensor; and selecting the to-be-evaluated sensor meeting a preset condition as a target sensor according to each comprehensive evaluation score. According to the method, multiple evaluation algorithms are adopted to evaluate a large number of sensor samples, and complex performance data are converted into visual quantitative scores, so that rapid comparison and screening among different types and batches of sensors are facilitated, and a sensor material or product with optimal performance can be found more accurately.

The invention discloses an alginate-based high-entropy metal oxide as well as a preparation method and application thereof, and belongs to the technical field of gas sensor materials. The preparation method comprises the following steps: mixing a high-entropy metal salt solution of at least five metal sources with an alginate solution to prepare alginate-based high-entropy metal aerogel, and then wrapping the alginate-based high-entropy metal aerogel with carbon cloth and rapidly heating the alginate-based high-entropy metal aerogel by using a Joule thermal method to obtain the nanosheet-shaped alginate-based high-entropy metal oxide. The material can be used for high-sensitivity detection of ethanol gas. The preparation method provided by the invention is green, simple and rapid, has a good sensing response effect in ethanol gas detection, and the sensing material has good stability, can be recycled for multiple times, and has a good application prospect.

The invention belongs to the technical field of sensor materials and malathion detection, and relates to a nano-silver modified covalent organic framework composite material, a preparation method and application thereof, and an electrochemical aptamer sensor. The preparation method comprises the following steps: S1, dissolving 1, 3, 5-tri (4-aminophenyl) benzene and 2, 5-divinyl-1, 4-phthalaldehyde in acetonitrile, adding a catalyst to carry out condensation reaction, standing, separating, washing and drying to obtain a covalent organic framework material; s2, dispersing the covalent organic framework material and silver nitrate in water, adding sodium citrate after ultrasonic dispersion, and washing and drying to obtain the nano-silver modified covalent organic framework composite material. The nano-silver modified covalent organic framework composite material prepared by the invention shows excellent crystallinity, extremely high porosity and good conductivity, and realizes high-sensitivity, rapid and accurate quantitative analysis of malathion in traditional Chinese medicinal materials.

The invention provides a method for optimizing a detection sensing material for trace characteristic gas in transformer oil, and belongs to the technical field of detection of gas in transformer oil, and the method comprises the following steps: firstly, obtaining basic data of candidate materials, including material composition, atomic structure, electron energy band structure and theoretical gas sensing performance parameters; and establishing a sensing performance prediction model considering the material composition and structure, and training a material-performance correlation model by using a machine learning algorithm. A large number of theoretical material data sets are generated through computer traversal, and multi-dimensional clustering analysis is performed on candidate materials to obtain a clustering center. And carrying out laboratory performance testing by taking a clustering center corresponding material as a to-be-tested set, and collecting actual performance data. And carrying out multi-generation iterative optimization on the material with the optimal performance by adopting a genetic algorithm to finally obtain the transformer oil trace characteristic gas detection sensing material. The problem that an existing gas sensing material is difficult to meet harsh requirements of an electric power system on online detection of a transformer in the aspects of sensitivity, selectivity and stability is solved.

The invention relates to an adsorption and health state estimation method of a modified material in lithium ion battery thermal runaway gas, and belongs to the technical field of battery health management. The method comprises the following steps: S1, constructing a gas sensor material, namely an indium selenide (InSe) single layer, and constructing a CuO-InSe single layer through copper oxide (CuO) modification; s2, calculating adsorption energy, an energy band gap and transfer charges based on a density functional theory; s3, calculating the desorption time of the adsorption system at different temperatures according to the adsorption energy, wherein the desorption time is used for proving the potential of CuO-InSe as an adsorbent of CO, C2H2 and C2H4 and a sensor of CO2; a quantitative model for fitting the energy band gap and the adsorption energy with the CO partial pressure is established, the lithium ion battery health state estimation is realized based on the model, and a solid theoretical basis and a practical model are provided for predicting the failure stage of the lithium ion battery and designing an intelligent early warning system.

The invention discloses an ecological environment monitoring method based on big data. The method comprises the following steps: acquiring a water body in a to-be-monitored area; performing data acquisition on the water body starting nano composite material to obtain a large amount of original data; transmitting the large amount of original data to a big data center; the server of the big data center classifies the large amount of original data according to the format of transmission equipment number-collection time-collection spatial position and stores the data in a database; preprocessing the mass data in the database to obtain a standard data set in which multiple indexes are associated with time and space; and performing data analysis on the standard data set to obtain components of the water body sample. For water body monitoring, the response speed of a sensor material to pollutants such as heavy metal ions and pesticide residues is low, and the water quality change condition cannot be timely and accurately reflected, so that innovation and breakthrough are performed from the aspects of physical and chemical materials to construct a more perfect ecological environment monitoring system.

This application discloses an embedded whole-cell biosensor, its fabrication method, and its application in machine learning-assisted mercury ion detection, belonging to the field of sensor materials and detection technology. This sensor encapsulates *E. coli* expressing green fluorescent protein (GFP) in a polyacrylamide / hyaluronic acid (PAAM / HA) hydrogel matrix, enabling highly selective and sensitive detection of mercury ions. It effectively eliminates interference from competing metal ions and can be completely regenerated through EDTA-2Na treatment, allowing for repeated use without performance loss. It maintains a stable fluorescence response for up to three weeks, possesses excellent biocompatibility and biodegradability, minimizing the risk of secondary contamination, and facilitates rapid on-site analysis.

In an embodiment a method includes providing a substrate with an electrical functional layer comprising a plurality of functional regions, wherein the functional regions are electrically addressable independently from each other, wherein the plurality of functional regions comprises at least a first group of functional regions and a second group of functional regions, wherein the first group is different from the second group, and wherein at least one functional region is part of the first group and of the second group and performing a multiple-mask process by applying a first mask on the electrical functional layer, wherein the first mask exposes the functional regions of the first group and covers all other functional regions, applying a first sensor material over the exposed functional regions by sputtering, removing the first mask, applying a second mask on the electrical functional layer, wherein the second mask exposes the functional regions of the second group and covers all other functional regions, applying a second sensor material over the exposed functional regions by sputtering and / or performing a functionalizing treatment in the exposed functional regions and removing the second mask.

The present invention discloses a drilling device for directional branch drilling, which relates to the field of geological drilling and includes a spliced ​​pipe, wherein a first connecting portion is provided at one end of the spliced ​​pipe, and a second connecting portion is symmetrically provided at the other end of the spliced ​​pipe. Adjacent spliced ​​pipes are connected by a hinge assembly provided at the first connecting portion, and a limit torsion spring is provided at the hinge between the first connecting portion and the adjacent spliced ​​pipe. An electric bending assembly is also provided to cooperate with the connection between the two adjacent spliced ​​pipes. When adjacent spliced ​​pipes are connected, the first connecting portion cooperates with the second connecting portion and is connected through the hinge assembly, resulting in a secure connection. The electric bending assembly can cause the spliced ​​pipe to bend at the splicing portion and cause the limit torsion spring to bend, thereby facilitating the spliced ​​pipe equipped with sensor material to bend and enter the directional drilling hole, and facilitating the equipment to pass through the bend of the directional drilling hole. After the detection is completed, the electric bending assembly can be restored to its original state, and the limit torsion spring causes the device to reset, thereby reducing the failure rate of the equipment.

A tin-zinc oxide composite material sensor relates to the field of gas sensor technology, particularly a gas sensor material comprising a highly moisture-resistant gas-sensitive material and its preparation method. The preparation method includes the following steps: a. ultrasonic treatment; b. autoclave heating; c. obtaining zinc oxide nanoparticles; d. magnetic stirring; e. autoclave heating; f. obtaining a tin-zinc oxide composite material; g. cleaning and air drying; h. preparing a paste-like slurry; and i. low-temperature drying to complete the fabrication of a planar gas sensor. The gas sensor provided by the present invention offers high accuracy and simple operation. The inclusion of the highly moisture-resistant nano-gas-sensitive material helps address the low sensitivity of metal oxide semiconductor gas sensors in transformer oil and their susceptibility to moisture molecules in the air.

The application discloses a large-size high-precision torque sensor elastomer, which comprises C, Si, Mn, P, S, Cr, Ni, Mo and Fe. The preparation method comprises a vacuum arc furnace smelting process, a forging and post-forging normalizing and high-temperature tempering process, a rough machining process, a quenching and tempering heat treatment process, a cold treatment process and a finishing process, wherein the finishing process is performed according to the size requirement of the sensor elastomer parts, and a vibration aging stress relief process. The application removes residual stress and strengthens and stabilizes the sensor material structure through three aging processes of heat treatment aging, cold treatment aging and external field vibration aging. The elastomer prepared by the method combines good structure stability, a small thermal expansion coefficient and excellent comprehensive performance, can meet the use requirements of large-size high-precision torque sensor elastomers of different specifications, can work in different atmospheric environments, and can be used for mass production of elastomer materials.

The application provides a flexible SERS sensor for sweat marker detection and a preparation method and application thereof.The SERS sensor is a composite structure of a Janus nanofiber membrane and a gold nanoparticle film; the Janus nanofiber membrane is composed of a hydrophilic fiber layer and a hydrophobic fiber layer, and the gold nanoparticle film is closely attached to the surface of the hydrophilic layer of the Janus nanofiber membrane.The SERS sensor has a one-way microfluidic transmission performance, can effectively collect sweat in the hydrophilic layer, and can keep the hydrophobic layer almost dry, thereby enhancing the skin comfort.The preparation method and structure of the SERS sensor are simple, and the SERS sensor has the characteristics of lightness, thinness, softness, stretchability, wearability, high sensitivity, high selectivity, good stability and the like, so that the SERS sensor becomes an excellent SERS sensor material, can measure the pH level and the concentration of lactic acid, uric acid and the like in sweat, and provides real-time data support for health management and disease prevention.

The invention proposes an optical temperature sensor head, which comprises an optical fiber and a sensor material optically connected to the free end of the optical fiber. The free end of the optical fiber has an overmolding made of a plastic material, which engages on the free end of the optical fiber and forms a protection body. In the protection body a transparent window is arranged. The window permits an optical connection to the free end of the optical fiber. Luminescent radiation from the sensor material can enter into the optical fiber. The effect of the protection body is that the temperature sensor head is mechanically stable and insensitive to environmental influences. The invention also proposes a temperature sensor device having such a temperature sensor head. Finally, the invention proposes an electrical machine, which has a winding with winding wires, which are connected to the proposed temperature sensor head.

The application discloses a preparation method of hollow double-shell ZnSnO3 / SnO2 heterojunction sensor material and application of the material in selective detection of triethylamine, and belongs to the technical field of gas sensors. The preparation method of the hollow double-shell ZnSnO3 / SnO2 heterojunction sensor material comprises the following steps: ZnSn(OH)6 / SnO2.nH2O microsphere precursors are prepared by using a coprecipitation method; the ZnSn(OH)6 / SnO2.nH2O microsphere precursors are added into an organic solvent to perform a solvothermal reaction, and then are calcined to obtain the hollow double-shell ZnSnO3 / SnO2 heterojunction sensor material. The hollow double-shell ZnSnO3 / SnO2 heterojunction sensor material can be used for high-response detection of triethylamine at a low working temperature, has excellent selectivity and stability, and can be used for actual monitoring application of food freshness.

This invention discloses a ruthenium-doped chromium phosphide material, its preparation method, and its applications, belonging to the field of sensor material application technology. The chemical formula of this material is Cr. 1‑x Ru x P, where 0.2

Salmon meat is prone to spoilage during transportation and storage due to its rich protein and fatty acid content. During the spoilage process, the released volatile organic compounds (VOCs) can vary greatly, mainly including trimethylamine (TMA), dimethylamine (DMA), formaldehyde (HCHO), and ammonia (NH3). In this study, an array of quartz crystal microbalance (QCM) gas sensors was established, which was modified with graphene oxide (GO), Mxenes (Ti3C2T X ), hydroxylated multi-walled carbon nanotubes (MWCNTs), and graphdiyne oxide (GO P ), respectively, to detect TMA, DMA, HCHO, and NH3 in salmon meat, respectively. The results showed that the four kinds of sensor materials modified QCM sensors had good sensitivity, selectivity and repeatability for the corresponding target gas. Finally, the freshness of salmon meat was detected using the sensor array. The sensor response data was visualized by principal component analysis (PCA), and the first two principal components (PCs) explained 98.8% of the total contribution variance. A further discriminant model was established using quadratic support vector machine (QSVM), and the classification result was 100%. To further describe, the detection results were compared with the total volatile base nitrogen (TVB-N) content to judge the freshness of salmon meat.

A method for manufacturing an electrochemical cell, in particular an electrolysis cell or a fuel cell, comprising several superimposed layers and / or layers, is proposed, comprising a membrane (1), characterized by the following steps a) at least partial application of at least one sensor material (3) to a surface (2) of the membrane (1) and / or a subgasket surrounding the membrane (1), b) Stacking the layers and / or layers and c) Joining the individual layers and / or layers, preferably by pressing or screwing. Furthermore, the invention relates to a control unit that is configured to carry out a method or individual steps of a method.

The invention discloses a multifunctional full-automatic aggregate silt content determination method and device, and relates to the technical field of sensor material detection. The device comprises a mounting frame, a guide rail arranged on the mounting frame, a sliding piece arranged on the guide rail, a cargo carrying table fixedly connected with the sliding piece, a material collecting barrel arranged on the cargo carrying table, sieve holes formed in the material collecting barrel and a water receiving barrel arranged at the bottom of the mounting frame. The moving assembly is arranged on the mounting frame and comprises a first motor, a rotating wheel connected with the first motor in a matched manner, a rotating rod connected with the rotating wheel, an upper crank and a lower crank which are rotationally arranged on the rotating rod, and a moving seat arranged on the mounting frame; and a flushing assembly; the whole measurement process, including flushing, shaking of the shaking screen and drainage, is automatically completed by a motor and a mechanical structure, so that the traditional operation mode of manual flushing, shaking and drainage is thoroughly changed, and operators are liberated from heavy, repeated and boring labor.

The invention discloses a preparation method of a biomass carbon-based flexible conductive film and application of the biomass carbon-based flexible conductive film in a sensor, and belongs to the technical field of sensor materials. According to the method, firstly, sodium hydroxide, sodium hypochlorite and phosphoric acid are adopted for conducting multi-stage chemical pretreatment on the apocynum venetum straw, lignin, hemicellulose and inorganic impurities in the apocynum venetum straw can be removed through sodium hydroxide treatment, the internal structure of the apocynum venetum straw is looser, and more micropore structures can be formed; sodium hypochlorite treatment is used for further removing residual lignin, promoting the rearrangement and graphitization process of carbon atoms and improving the graphitization degree of the carbon material; the apocynum venetum straws treated by phosphoric acid are beneficial to formation of more microporous and mesoporous structures; the preparation method comprises the following steps: firstly preparing an apocynum venetum straw carbon material, then combining with a carbonization process, remarkably optimizing the microstructure of the apocynum venetum straw carbon material, forming a uniform multi-stage pore channel and improving the graphitization degree, and finally combining the apocynum venetum straw carbon material with polyurethane to prepare the biomass carbon-based flexible conductive film with excellent conductivity.

The application relates to a preparation method of a SnO2 / SnS2 composite formaldehyde gas sensor, and relates to a formaldehyde gas sensor preparation method.The preparation process comprises SnO2 preparation and sulfidation treatment, and a subsequent washing and drying step is combined to prepare a SnO2 / SnS2 porous hollow spherical composite structure.The material is a hollow spherical structure, the surface is loose and porous, has a high specific surface area and a large number of active sites; in addition, an n-n heterostructure is formed between the SnO2 hollow sphere and SnS2 nanoparticles, and excellent detection performance is exhibited on formaldehyde gas. The sensor device prepared by the application has the advantages of small size, high sensitivity, high sensitivity on formaldehyde gas at room temperature, good selectivity, long-term stability, and an ultralow detection limit. In addition, the SnO2 / SnS2 hollow sphere composite structure sensor material preparation process is simple and stable, and has a wide application prospect in formaldehyde detection.

Electrically conductive sensor substrate (1) comprising at least one electrically conductive sensor material in combination with an electrically non-conductive support, with at least two areas, a first, transparent area which serves as a sensor and reacts upon touch and / or approach with analog value changes which can be detected as analog electrical signals and a second, further area which provides digital signals, wherein the sensor substrate has conductors which lead from the first area to at least one component which is arranged on and / or on the second area, and wherein the component converts analog value changes of the sensor into digital signals.

The invention belongs to the technical field of sensor materials, and relates to a c-MOF composite material and a preparation method and application thereof, the preparation method comprises the following steps: (1) providing a substrate, and preparing a bottom electrode on the surface of the substrate through photoetching patterning; (2) growing a metal oxide on the surface of the substrate in situ; and (3) growing a c-MOF material on the surface of the metal oxide in situ to form a multi-stage controllable heterojunction structure so as to obtain the c-MOF composite material. According to the preparation method provided by the invention, the metal oxide can be quickly and controllably grown, the c-MOF material is grown on the surface of the metal oxide in situ, a multi-stage controllable heterojunction structure is formed, more reaction active sites are provided for gas response, high sensitivity, low detection limit and long-term stability at low working temperature are realized, and the preparation method is suitable for various application scenes and has wide application prospects. The method is simple in process, mild in condition, low in production cost and beneficial to large-scale popularization and application.

The invention discloses a silicon carbide-based carbon monoxide gas sensor material, a chip and a preparation method thereof, and belongs to the technical field of MEMS sensors. The sensor chip mainly takes silicon carbide as a substrate, utilizes the heterojunction effect of titanium dioxide and tin dioxide, and is combined with Pt noble metal as a catalyst. The polystyrene microspheres are used as a template to prepare a multi-layer three-dimensional porous structure, so that the gas adsorbability and active sites are increased, the sensitivity of the gas sensor is improved, and the gas sensor has the characteristics of high temperature resistance, high stability, sensitive response and the like.

The present invention provides an ionization pressure sensor that achieves high sensitivity and low drift through a body capacitance strategy, as well as a preparation method and application thereof. First, the present invention provides a preparation method of an ionization composite material based on epoxy groups, specifically, uniformly dispersing material A, material B and material C in a solvent; curing after evaporating the solvent; wherein, material A is an ionic liquid with epoxy groups, including epoxy ionic liquid 1 and / or epoxy ionic liquid 2; material B includes an organic polyamine compound or a polyetheramine; material C is a conductive filler, and further, the prepared ionization composite material is used as a sensor material layer to obtain an ionization pressure sensor that can simultaneously take into account high sensitivity and low drift. The present invention solves the contradiction between the high sensitivity and low drift of the current ionization pressure sensor, and the obtained high-sensitivity, low-drift ionization pressure sensor has broad application prospects in technical fields such as human-computer interaction and wearable medical devices.

This invention discloses a pressure measurement system for a sealed reaction vessel, comprising a reaction vessel body, a pressure tapping module, a measurement module, a signal processing module, an early warning module, and a power supply module. By optimizing the location of the pressure tapping ports and the design of the pressure tapping pipeline, this invention avoids interference from turbulent flow fields, liquid and gas accumulation, pipeline blockage, and thermal expansion and contraction of the pressure-tapping medium, significantly improving pressure measurement accuracy. Through the use of redundant backup designs for main and backup pressure tapping ports and measurement branches, it avoids pressure monitoring interruptions caused by single-point failures, effectively preventing safety accidents and improving system reliability. By optimizing sensor materials and sealing structures and adding anti-interference mechanisms, it enhances the system's tolerance to harsh conditions such as high temperature, strong corrosion, and strong vibration, ensuring continuous and stable system operation, reducing maintenance costs, and comprehensively guaranteeing the reaction efficiency, product quality, and production safety of the sealed reaction vessel.

The application belongs to the field of electrochemical biosensors, and discloses a preparation method of an electrochemical biosensor for multi-modal sweat detection, and specifically proposes a single-electrode multi-functional arrangement method in a three-electrode system. The preparation method comprises the selection and modification of electrode materials, the assembly of sensors, and the integration of a signal acquisition and analysis system, by preparing a sensor material with high sensitivity and high selectivity, and then printing and assembling the sensor material into a portable device through screen printing to realize the simultaneous detection of multiple biomarkers in sweat. Through innovative material design and process optimization, the sensor can not only obtain real-time information of multiple biomarkers in sweat, but also provide reliable data analysis, and has excellent long-term stability and anti-interference ability in actual application. The technology provides an effective and reliable solution for real-time health monitoring.

The application discloses a flexible strain sensor material with high stability of monitoring signals and a preparation method and application thereof, and the preparation method comprises the following steps: S1, polyvinylpyrrolidone, conductive filler and organic solvent are mixed, the organic solvent is removed by volatilization after being uniformly mixed, and conductive nano filler is obtained; S2, the conductive nano reinforcing filler is mixed with methyl vinyl silicone rubber, nano silicon dioxide, hydroxyl silicone oil, vinyl silicone oil and vulcanizing agent, and mixing is performed to obtain a mixed material; and S3, vulcanization is performed on the mixed material in two stages, the vulcanization temperature in the second stage is 20-30 DEG C higher than that in the first stage, and the flexible strain sensor material is obtained. The flexible strain sensor material with high sensitivity, good mechanical properties and stable monitoring signals is prepared in a high-efficiency, pollution-free and low-cost mode, is suitable for engineering structure health monitoring under size deformation, and has a wide application prospect.