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52results about How to "Easy to detect" patented technology

Image processing apparatus and method, and storage medium

InactiveUS7372594B1Quality improvementDegradation of image qualityDigitally marking record carriersDigital computer detailsImaging qualityComputer graphics (images)
A pattern which does not appear at a flat portion in normal binarization processing is set as a code pattern, and a code formed from this pattern is attached. At this time, code attachment with little degradation in image quality is implemented by selecting an unnoticeable pattern.
Owner:CANON KK

Spectrum sensing algorithm based on variational mode decomposition

ActiveCN110061792AAccurate divisionFine divisionTransmission monitoringFrequency bandDecomposition
The invention discloses a spectrum sensing algorithm based on variational mode decomposition, and solves the problem that a signal at a receiving end is interfered by a noise background in the prior art. The method comprises the following steps of: 1, generating a simulation signal BPSK; 2, taking the mean value of the instantaneous frequencies of the components as a decomposition parameter, determining an optimal mode decomposition number K according to a change curve of the decomposition parameter, and setting an appropriate penalty factor alpha; 3, performing variational mode decompositionon the BPSK signal according to the obtained decomposition parameters; 4, respectively carrying out power spectrum estimation on the obtained L intrinsic modes; 5, taking the ratio of the sum of the spectral line intensities of the intrinsic modes to the sum of intensities of all the intrinsic modes as a test statistic; and 6, comparing the obtained test statistics with a judgment threshold, and making a final judgment. According to the method, the equivalent band-pass filtering characteristic and the Wiener filtering structure of variational mode decomposition are utilized, frequency bands are better divided, and denoising processing is better carried out; and compared with a traditional power spectrum segmented cancellation algorithm, the detection performance can be remarkably improved.
Owner:XIDIAN UNIV

Testing system for ring-digital and physical mixed real-time power simulation and test method thereof

InactiveCN104865847AEasy to detectSimulator controlFiberFour quadrants
The invention discloses a testing system for ring-digital and physical mixed real-time power simulation. A digital simulation work station is connected with an RTDS digital simulator through the Ethernet, the RTDS digital simulator is connected with an analog output interface card through fibers, and the analog output interface card is connected with a controller through hard wiring. The controller is connected with a four-quadrant linear power amplifier through hard wiring, and the four-quadrant linear power amplifier is connected with a power type physical model through a cable conductor to output voltage analog of the RTDS digital simulator to the power type physical model. The power type physical model is connected with a current measurement sensor, the current measurement sensor is connected with the analog input interface card through hard wiring, and the analog input interface card is connected with the RTDS digital simulator through fibers to return the current of the power type physical model to the RTDS digital simulator.
Owner:POWER GRID TECH RES CENT CHINA SOUTHERN POWER GRID +2

Computer display screen clamping device and operation method thereof

The invention relates to a computer display screen clamping device and an operation method thereof. The computer display screen clamping device comprises a base, clamping rods, guide frames, clamping sleeves, a placement frame, a mounting plate, a fixing plate, a fixing shaft, an adjusting plate, a connecting rod, a balance sleeve, a sliding sleeve, an operation rod and a positioning plate, wherein mounting supporting columns are arranged on the two sides of the base, the upper sides of the mounting supporting columns are connected with the clamping rods through mounting shafts, the clamping rods rotate on the mounting shafts, the inner sides of the clamping rods are connected with the clamping sleeves, the middles of the clamping sleeves are connected with protective pads, the inner sides of the mounting supporting columns are connected with the guide frames, the middles of the guide frames are connected with mounting sleeves, the inner sides of the mounting sleeves are connected with a plurality of guide wheels, the two sides of the base are connected with a mounting plate, the mounting plate is arranged between the mounting supporting columns, the upper side of the mounting plate is connected with the fixing plate, the middle of the mounting plate is connected with the lower side of the fixing shaft, and the upper side of the fixing shaft is connected with the fixing plate.
Owner:HARBIN VOCATIONAL & TECHN COLLEGE

Multi-angle lighting device and collecting system

InactiveCN108535265AEasy to detectLow costOptically investigating flaws/contaminationGlass coverThree-dimensional space
The invention relates to the technical field of glass cover plate detection, in particular to a multi-angle lighting device. The multi-angle lighting device comprises a light source module and a control module for controlling the on and off and / or brightness of the light source module, the light source module comprises a plurality of light source components which are disposed at different lightingangles in a three-dimensional space and all face the same lighting area. By virtue of the light source module which face the same lighting area and can light at different lighting angles in a three-dimensional space, and the control module controlling the on and off and / or brightness of the light source module, the collection imaging and defect detection at different angles of a product to be detected can be realized. The multi-angle lighting device has the advantages of low cost, stable performance and low omission factor.
Owner:SHENZHEN NANOVISION CORP

Low, slow and small target detection method based on FDA-MIMO radar

InactiveCN110865362AEasy to detectAvoid performance lossRadio wave reradiation/reflectionEngineeringLikelihood-ratio test
The invention discloses a low, slow and small target detection method based on FDA-MIMO (Multi-Input Multi-Output) radar. The detection method comprises the following steps of: constructing a multi-input multi-output frequency diversity array to transmit and receive electromagnetic wave signals under a multipath condition; performing discrete sampling on the demodulated received signals to construct an echo observation data matrix which is expressed as a vector form; then introducing a target fluctuation model, and deriving an FDA-MIMO radar low, slow and small target detector by adopting a generalized likelihood ratio test method, so that the detection probability of a target can be effectively improved under a certain false alarm probability; and finally, comparing FDA-MIMO, MIMO and FDAradar detection performances so as to simulation verify that the detection effect of the FDA-MIMO radar is more significant. Through combination of the advantages of the FDA radar and the MIMO radar,the influence of the low-altitude multipath effect on target detection can be effectively suppressed, the performance loss caused by fluctuation of a target RCS can be well overcome, and a large space diversity gain is obtained.
Owner:GUILIN UNIV OF ELECTRONIC TECH

Product inspection equipment for high-precision mold production

InactiveCN110579347AEasy to detectImprove reliabilityApparatus for force/torque/work measurementMachine part testingArchitectural engineeringHinge angle
The invention discloses product inspection equipment for high-precision mold production. The equipment comprises a first U-shaped frame and a second U-shaped frame which are hinged to each other. First electric telescopic rods are hinged to the two sides of the second U-shaped frame. The ends, away from the second U-shaped frame, of the two first electric telescopic rods are hinged to the two sides of the first U-shaped frame respectively. A same metal cylinder is hinged to one end of the inner wall of the first U-shaped frame. An adjusting threaded rod is connected to the bottom end of the metal cylinder in a threaded mode. A hinge block is hinged to the bottom end of the adjusting threaded rod. A supporting disc is welded to the bottom end of the hinge block. A groove strip is welded tothe top end of the metal cylinder. A slideway is fixed to one side of the groove strip through a bolt, and two sliding blocks are arranged on the slideway in a sliding mode. The equipment is convenient to transfer. The inclination angle of the slideway can be conveniently adjusted. Opening and closing inspection of a mold can be performed at different inclination angles, and the reliability of theinspection result can be improved. Through the arrangement of a tension detection mechanism, the tension required for opening and closing a mold can be conveniently detected.
Owner:上海亿准精密模具有限公司

In-vivo platelet instant label-free detection system and detection method

PendingCN106037757AAvoid waiting timeEasy to detectBlood characterising devicesCatheterA diamondComputer hardware
The invention discloses an in-vivo platelet instant label-free detection system. The detection system comprises a signal acquisition unit, a signal receiving unit and a signal processing unit, wherein the signal acquisition unit comprises a diamond MEMS sensor which is arranged in vivo; the diamond MEMS (micro-electro-mechanical system) sensor comprises a PC diamond thin film and electrodes which are arranged on the PC diamond thin film and are formed by conductive diamonds; the signal acquisition unit is used for acquiring kinetics signals of electrode process of platelet near-wall time-space distribution; the signal receiving unit is connected to the signal acquisition unit and is arranged in vitro, and the signal receiving unit is used for receiving the signals acquired by the signal acquisition unit; and the signal processing unit is connected to the signal receiving unit and is arranged in vitro, and the signal processing unit is used for quantitative characterization of platelet time-space distribution in accordance with the signals received by the signal receiving unit. The detection system and the detection method disclosed by the invention, which adopt in-vivo detection, can avoid an operation of extracting blood for in-vitro detection, so that the detection is facilitated; through label-free detection, the detection system and the detection method are safe and nondestructive to the blood; and through instant detection, the problem of an existing detection method which is asynchronous in waiting time as well as detection and result acquisition.
Owner:MAGASSIST INC

Black tea fermentation quality index detection method based on electrical characteristic parameters

ActiveCN107505358AQuick checkSensitive and real-time detectionMaterial impedanceMaterial resistanceElectricityRelative standard deviation
The invention relates to the technical field of food detection and particularly relates to a black tea fermentation quality index detection method based on electrical characteristic parameters. The detection method comprises the steps of respectively putting different fermentation degrees of tea into an electric characteristic testing system to measure electric characteristic parameters of parallel-connection equivalent capacitance, complex impedance, resistance, reactance, loss factors, phase position loss angles and the like; detecting quality indexes of sense grade, theaflavin, thearubigins, theabrownin and the like at the same time; establishing a database by utilizing the electric characteristic parameters and the quality indexes; performing feature electric characteristic parameter screen on the data in the database; establishing a black tea fermentation quality prediction model; utilizing an appropriate relative standard deviation value as an index of prediction capacity of the model. The detection method disclosed by the invention overcomes the defects of manual sense evaluation and physical-chemical detection, improves objectivity and precision of black tea fermentation quality evaluation, achieves automatic, intelligent and precise fermentation control and shows very good practical significance and application prospect in tea quality index detection.
Owner:TEA RES INST CHINESE ACAD OF AGRI SCI

Method and system for enhanced modulation of video signals

ActiveUS20050047595A1Easy to detectIncrease changeTelevision system detailsSupplementary picture signal insertionScan lineCarrier signal
A method for encoding a carrier signal in a video signal, the video signal having one or more frames, the frames each having a first field and a second field, the first field and the second field of each frame having a plurality of scan lines, each having a plurality of pixels with an intensity value indicating brightness, the method comprising selectively designating the plurality of scan lines of the first field of the one or more frames as up lines or down lines, calculating an optimum amount of adjustment to the pixels of the up lines and the down lines, and selectively increasing the intensity value of pixels of the up lines and decreasing the intensity value of pixels of the down lines by the optimum amount of adjustment thereby modulating the video signal with a carrier signal and creating a modulated video signal.
Owner:ADVOCADO INC

Method for evaluating antimicrobial activity of andrographis paniculata

ActiveCN103792259AStrong specificityQuick checkMaterial heat developmentAndrographis paniculataDrug
The invention discloses a method for evaluating antimicrobial activity of andrographis paniculata. According to the method, the antimicrobial activity of andrographis paniculata is evaluated by antibacterial rate I%, wherein the I% is calculated according to the following formula (1):I%=(t2-t0) / t0*100%(1), t0 refers to the time to peak of a second exponential growth phase in a growth and metabolism thermogram of bacteria which is not subjected to pharmacological intervention, t2 refers to the time to peak of a second exponential growth phase in a growth and metabolism thermogram of bacteria which is subjected to intervention of andrographis paniculata, and the concentration of a test solution of the andrographis paniculata interfering growth and metabolism of the bacteria ranges from 0.4mg / mL to 4 mg / mL, preferably 3mg / mL. The method provided by the invention can be used for qualitatively analyzing the antimicrobial activity of andrographis paniculata produced in different production areas, different preparation methods, different production batches or different growth time, and the like.
Owner:302 MILITARY HOSPITAL OF CHINA

Aviation infrared video multi-target detection and tracking method and device

ActiveCN109859250AImplement trackingEasy to detectImage analysisAviationComputer vision
The embodiment of the invention provides an aviation infrared video multi-target detection and tracking method and device. The method comprises the steps of obtaining an aviation infrared video; detecting the positions of multiple targets in the aviation infrared video by using a self-adaptive threshold method to obtain the positions of the multiple targets in the aviation infrared video; and tracking the positions of the multiple targets in the aviation infrared video by using a kernel correlation algorithm, and obtaining the motion tracks of the multiple targets in the aviation infrared video. According to the embodiment of the invention, the multi-target detection and tracking of the aviation infrared video are skillfully combined, and the positions of the multiple targets are independently stored by adopting a certain data storage structure, so that the automatic detection dynamic detection and tracking of the multiple targets in the aviation infrared video are realized.
Owner:BEIJING YUETU DATA TECH DEV CO LTD

High-frequency radar target detection method based on sparse recovery space-time spectrum estimation

ActiveCN107229040AMajor application abilityGood application effectWave based measurement systemsMultiple targetSingle station
The invention provides a novel high-frequency ground wave radar target detection method. For the problem of underutilization of time-space two-dimensional information of a time-space cascade scheme, a time-space joint estimation theory is introduced to optimize detection process; and for the problem of insufficient snapshots in time-space joint estimation, a multi-snapshot sparse recovery theory is introduced. The provided wide-beamwidth high-frequency ground wave radar target detection method based on sparse recovery space-time spectrum estimation solves the technical problem of target detection in a single-station high-frequency ground wave radar sea clutter area and meanwhile, optimizes multi-target detection performance under an intensive ship background.
Owner:WUHAN UNIV

Tomography system inside blood vessel

ActiveCN104856652ASimple structureEasy to detectDiagnostics using lightCatheterTomographyCatheter
The invention discloses a tomography system inside a blood vessel. The tomography system comprises an imaging catheter, an optical fiber movement controller, a tomography module, a data collecting module and a data processing and displaying module which are connected in sequence. The light emitted by the tomography module is transmitted to the imaging catheter through the optical fiber movement controller, the light is concentrated on a target blood vessel wall through the imaging catheter, and the optical fiber movement controller drives the imaging catheter to conduct rectilinear motion inside a target blood vessel at the same time of rotating at a high speed. The reflected light of different layers of the target blood vessel wall is collected and transmitted to the optical fiber movement controller and the tomography module in sequence by the imaging catheter, the tomography module demodulates the received reflected light into intensity information and then converts the intensity information into electrical signals, the data collecting module collects and transmits the electrical signals to the data processing and displaying module, and the data processing and displaying module processes, generates and displays cross-section image information of the blood vessel. By means of the tomography system inside the blood vessel, the high-speed tomography of the blood vessel can be achieved.
Owner:NANJING WOLFMAN MEDICAL TECH CO LTD

Improved YOLOv3 minimum remote sensing image target detection method and device and storage medium

ActiveCN111462050ADetection speedEasy to keepImage enhancementImage analysisData setEngineering
The invention relates to the technical field of target detection, in particular to an improved YOLOv3 minimum remote sensing image target detection method and device and a storage medium. According tothe invention, an additional bottom-up and transverse connection path is added to the FPN module to improve the performance of the low-resolution feature; a top-down and bottom-up feature pyramid network is constructed, a bidirectionally combined pyramid feature layer is fused and applied to target detection of a remote sensing image, the dimension of a network model is reduced by adopting 1 * 1convolution, and the detection speed of the network is improved. And finally, quantitative and qualitative comparative analysis is carried out on VEDAI and NWPU VHR remote sensing vehicle data sets and the most advanced YOLOv3 network. The result shows that the detection performance of the improved network is obviously improved compared with the original network, the detection speed of the networkis hardly changed, and the problems of low target detection rate, high false alarm rate and low detection speed of the minimum remote sensing image at the present stage are solved.
Owner:UNIV OF SHANGHAI FOR SCI & TECH

Disconnection fault detection method based on wide-area synchronous intelligent sensor

PendingCN111007355AConstruction saves time and effortRealize detection and localizationFault location by conductor typesContinuity testingEngineeringCurrent amplitude
The invention relates to a disconnection fault detection method based on a wide-area synchronous intelligent sensor. Three-phase current amplitude and phase periodically reported by a wide-area synchronous intelligent sensor are monitored in real time; once obvious disconnection fault characteristics occur, three-phase current waveforms of all wide-area synchronous intelligent sensors installed along a fault line with the disconnection characteristics at the current moment are called, automatic verification and confirmation are carried out, and finally a disconnection fault is detected and positioned. The method solves the problems of disconnection fault detection and positioning of the power distribution network at present.
Owner:苏州银蕨电力科技有限公司

Fixing method of high-activity glucose oxidase

ActiveCN109270143AHigh activityHigh oxygen permeabilityMaterial analysis by electric/magnetic meansBiocompatibility TestingWater soluble
The invention discloses a fixing method of high-activity glucose oxidase. Glucose oxidase is added into a water soluble photosensitive resin monomer solution containing a silane coupling agent, the glucose oxidase is buried in the net structure of the cured photosensitive resin through photopolymerization. The oxygen permeation rate of the cured resin film is greatly increased by adding the silanecoupling agent into the water soluble photosensitive resin, and accordingly the activity of fixed glucose oxidase is effectively improved. The fixing method steps are simple, all reagents applied inthe method have the good biocompatibility, and the prepared sensor has the good detection effect and high response speed on glucose.
Owner:SOUTHEAST UNIV

Electrochemical luminescence method taking covalent organic framework as coreactant and application of arsenite radical detection

ActiveCN111896596APromote sustainable developmentIncreased sensitivityChemiluminescene/bioluminescenceMaterial electrochemical variablesElectrochemiluminescenceElectrochemistry
The invention discloses an electrochemical luminescence method taking a covalent organic framework as a coreactant and application of arsenite radical detection, which belong to the technical field ofelectrochemiluminescence sensing. The surface of a glassy carbon electrode is coated with a mixed solution of a covalent organic framework Tp-Bpy COF and chitosan; (AC)29 is assembled to the surfaceof an electrode through an amide reaction, and (GT)29 is connected to the electrode through DNA complementary hybridization to prepare a (GT)29 / (AC)29 / Tp-Bpy COF modified electrode which has a strongcathode ECL signal in Ir(bpy)3. When Ru(bpy)3<2+> is embedded into (GT)29 / (AC)29 double chains through electrostatic interaction, ECL of Ru(bpy)3<2+> is enhanced, and ECL of Ir(bpy)3 is weakened. WhenAs(III) is present, the ECL signal of Ir(ppy)3 is enhanced, and the ECL signal of Ru(bpy)3<2+> is reduced; the ratio of the ECL signals of Ir(ppy)3 and Ru(bpy)3<2+> and the concentration of As(III) have a linear relationship; and an ECL method based on a Tp-Bpy COF co-reactant effect and an ECL-RET effect between Ru(bpy)3<2+> and Ir(ppy)3 is constructed, and is used for ultra-sensitive detectionof As(III).
Owner:NANCHANG UNIV

Method for transitioning a device controller of an electronic device

ActiveUS20210124814A1Easy to operateEasy to detectDigital data authenticationPrint image acquisitionControl theoryFinger detection
The present invention relates to a method for transitioning a device controller comprised with an electronic device from an at least partly inactive mode to an at least partly active mode, wherein the method comprises: determining the area portion of a finger detecting structure being touched by an object; determining a force applied on the fingerprint sensing device. When the area portion of the finger detecting structure being touched by the object exceeds a predetermined threshold area portion, and the force exceeds a predetermined threshold force value, transitioning, using the pre-processing module, the device controller from the at least partly inactive mode to the at least partly active mode. The invention also relates to such an electronic device.
Owner:FINGERPRINT CARDS IP AB

Small sample target detection method and system based on support and query samples

The invention discloses a small sample target detection method and system based on support and query samples, comprising support sample and query sample feature extraction, support sample weighting based on query sample guidance, query feature enhancement based on support sample guidance, scoring and screening of candidate boxes, and mixed loss function calculation. A small sample learning mechanism is introduced into a deep target detection framework, and a set of small sample target detection system with high accuracy is established. The method is simple in framework, convenient to use, high in expandability and high in interpretability, and results of small sample target detection of two mainstream visual attribute data sets exceed those of an existing method. The method can provide basic framework and algorithm support for the target detection technology in the military and industrial application field, and can be easily expanded to other small sample learning tasks.
Owner:ZHEJIANG LAB +1

Maintenance system for gear flaw detection

ActiveCN110514737AMake sure to meshReliable design basisAnalysing solids using sonic/ultrasonic/infrasonic wavesMaterial magnetic variablesElectric machineThreaded rod
The invention discloses a maintenance system for gear flaw detection. The system comprises a base, a case and a flaw detector, the case is fixedly mounted at the upper end of the base, a PLC is fixedly mounted on one side of the outer wall of the base, a box door is hinged to one side of the outer wall of the machine box, a first motor and two bearing seats are fixedly installed in one side of thebottom end in the machine box, a threaded rod is rotatably installed between the two sets of bearing seats, a threaded sliding seat is installed on the outer portion of the threaded rod in a threadedmode, and a supporting rod is fixedly installed at the upper end of the threaded sliding seat through a containing and carrying plate. According to the invention, a driving gear is installed, staticnondestructive flaw detection operation can be carried out on the gear, hidden structural dangers existing in gear production and machining can be found in time, structural flaw detection operation can be carried out on the gear under the dynamic operation condition, and therefore the stress and deformation conditions of the gear structure under the operation state can be mastered, and the detection effect is effectively improved.
Owner:BEIJING MAGNETIC FLUX EQUIP MFG

Automatic adhesive dispensing process for lens waterproofing

InactiveCN109174575AEasy alignmentSimple gland designLiquid surface applicatorsCoatingsStructure propertyAdhesive
The present invention discloses an automatic adhesive dispensing process for lens waterproofing, and belongs to the technical field of lens assemblies. The process includes an adhesive dispensing device and an adhesive dispensing method. The adhesive dispensing device includes an adhesive dispensing jig for placing a lens therein and an adhesive dispensing gland disposed above the adhesive dispensing jig. The adhesive dispensing jig is cylindrical. A size of the inner wall of the adhesive dispensing jig matches a size of the lens. 3 notches are formed at the upper end of the adhesive dispensing jig. The adhesive dispensing jig is annular. 3 convex angles are formed on the adhesive dispensing gland. The adhesive dispensing device matches the adhesive dispensing method of the present invention; and with special glue, operation and detection are convenient and fast, the processed product has a stable structure property, and the working efficiency and the product qualified rate are greatlyimproved.
Owner:HENAN TONGCHENG OPTOELECTRONICS CO LTD

Method for preparing mercury-free ammonium detection test paper

InactiveCN101887055AEasy to makeEasy to carryAnalysis using chemical indicatorsNitrosoSodium phosphates
The invention relates to a method for preparing mercury-free ammonium detection test paper, and belongs to the field of analytical chemistry. Based on filter paper of 1 square centimeter, the ammonium test paper consists of 0.5 to 5.6 milligrams of soaked phenol, 0 to 0.1 milligram of sodium nitroprusside, 0.35 to 4.5 milligrams of disodium hydrogen phosphate, 3.0 to 10 milligrams of sodium phosphate, 0.3 to 4.6 milligrams of sodium hypochlorite and 0.15 to 0.5 milligram of sodium hydroxide. The reagent content of the ammonium test paper is only one percent of that in other ammonium ion test methods. The test paper of the invention has the advantages of simple manufacturing, convenience to carry, simple, convenient and rapid operation, vivid detection, high selectivity and capability of judging the ammonium ion content of a sample by visually comparing the color of the developing test paper with that of a standard color card. Reagents used by the method are ordinary chemical reagents which are non-toxic, safe and reliable and can be used for testing the ammonium content of various nitrogen fertilizers, soil, crop hydroponics nutrient solution, different kinds of ammonium-containing solution and sewage.
Owner:UNIV OF JINAN

Solar grid forestry fire monitoring early warning system

InactiveCN107240217AEasy to detectEasy to collectBatteries circuit arrangementsForest fire alarmsSmoke detectorsElectricity
The invention discloses a solar grid forestry fire monitoring early warning system. The solar grid forestry fire monitoring early warning system comprises a power supply distributor and a monitoring chamber, the monitoring chamber further comprises a monitoring display screen, a wireless communicator and an early warning alarm apparatus, the monitoring display screen, the wireless communicator and the early warning alarm apparatus are all electrically connected with the power supply distributor, the power supply distributor is electrically connected with a storage battery, the storage battery is electrically connected with a solar battery panel, the wireless communicator is connected with a forest grid area monitoring camera and a smoke detector through a wireless communication signal, and an exhaust hole is formed in the upper surface of the smoke detector. Through the design of a collecting pipe at the outer side of the smoke detector and an air collecting fan at the end close to the collecting pipe, air near the smoke detector is conveniently and quickly collected, whether a fire is generated or not near the smoke detector is further timely and effectively detected, the detection efficiency is conveniently improved, and detection is conveniently conducted when the fire is not further expanded.
Owner:CHIZHOU ZHONGYOU ECOLOGICAL AGRI DEV CO LTD

Preparation method of flexible gas sensor for fabric

PendingCN113552182AStay flexibleKeep breathableMaterial resistanceTextiles and paperAlcoholPorous carbon
The invention relates to a preparation method of a flexible gas sensor for a fabric. The preparation method comprises the following steps of 1, selecting an area on the fabric as a sensor processing area, 2, preparing a coating solution according to the mass ratio of alcohol-soluble phenolic resin to poloxamer being larger than 1: 2 and smaller than or equal to 2: 1, the mass ratio of the sum of the mass of the alcohol-soluble phenolic resin and the mass of the poloxamer to absolute ethyl alcohol being 1: 4, 3, placing the coating solution in a vacuum box for degassing treatment, spin-coating the sensor processing area of the fabric with the degassed coating solution, and placing the fabric spin-coated with the coating solution in a vacuum drying box for vacuum heating and drying, 4, ablating the area, spin-coated with the coating solution, of the dried fabric by using a carbon dioxide laser to obtain porous carbon, and respectively adhering electrode plates to two ends of the area where the porous carbon is located. The gas sensor is combined with the fabric, so that the flexibility and the air permeability of the fabric are kept, and the manufacturing cost of the intelligent protective clothing is reduced.
Owner:HEBEI UNIV OF TECH
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