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65 results about "Ultrasonic scattering" patented technology
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Preparation method for modified diaphragm for lithium-sulfur battery, modified diaphragm and lithium-sulfur battery adopting modified diaphragm
InactiveCN105489818AImprove adsorption capacityIncrease battery capacityCell seperators/membranes/diaphragms/spacersFinal product manufactureLithium–sulfur batteryPolysulfide
The invention discloses a preparation method for a modified diaphragm for a lithium-sulfur battery, the modified diaphragm and the lithium-sulfur battery adopting the modified diaphragm. The preparation method for the modified diaphragm for the lithium-sulfur battery comprises the following steps of mixing a conductive agent with a nano-metal oxide at a mass ratio of 1:1-10:1 to obtain a uniformly-mixed coating material; uniformly mixing the coating material with a binder at a mass ratio of 1:1-5:1, and scattering the mixture into solvent; performing mechanical stirring or ultrasonic scattering to obtain uniformly-dispersed coating slurry; coating the surface of a diaphragm substrate with the obtained coating slurry, and performing vacuum drying to obtain the modified diaphragm for the lithium-sulfur battery. The modified diaphragm for the lithium-sulfur battery prepared by the method can effectively restrain a shuttle effect of polysulfide in a charge / discharge process of the lithium-sulfur battery and prolong the cycle life of the lithium-sulfur battery; and the lithium-sulfur battery adopting the modified diaphragm is high in capacity and good in cycling performance.
Owner:CHANGSHA RES INST OF MINING & METALLURGY
Nano-composite resin dental material for numerical control machine-shaping and preparation thereof
InactiveCN101244013AImprove mechanical propertiesGood clinical valueImpression capsDentistry preparationsNumerical controlHigh density
The invention discloses nano composite resin dental material used for numerical control forming and the preparation method, which comprises the following composition according to weight account: resin matrix A 25 to 36; resin matrix B 15 to 30; inorganic filler A 30 to 35; inorganic filler B 8 to 15; organic filler 0 to 2; initiator 0.8 to 1.4; reducing agent 0.8 to 1.4; inhibitor 0.01 to 0.05; coloring agent 0.001 to 0.007. The preparation method comprises the following: the resin matrix preparing; the initiation system mixture preparing; inorganic filler mixture preparing; mixed avoiding light, ultrasonic scattering, polymerization solidifying and shaping upon the mixture from the above steps with the organic filler, the inhibitor and the coloring agent. The nano composite resin dental material has the advantages of high density, good wear resistant performance and high hardness and more excellent performance than polymethyl methacrylate artificial tooth and simple preparation method. The preparation method is suitable for dentistry clinical application and popularization.
Owner:SOUTH CHINA UNIV OF TECH
High-resolution wave-theory-based ultrasound reflection imaging using the split-step fourier and globally optimized fourier finite-difference methods
InactiveUS20130251222A1Quality improvementImprove resolutionVibration measurement in solidsAnalysing solids using sonic/ultrasonic/infrasonic wavesFrequency waveImaging quality
Owner:TRIAD NAT SECURITY LLC
Ultrasound system and ultrasound diagnostic apparatus for imaging scatterers in a medium
InactiveUS20020049381A1Processing detected response signalHeart/pulse rate measurement devicesUltrasound imagingSonification
An ultrasound imaging system for imaging ultrasound scatterers, comprising a probe (208) for transmitting ultrasound waves and detecting ultrasound echoes reflected by said ultrasound scatterers, wherein said probe comprises a first group of transducer elements, labeled transmitting group (T), to transmit ultrasound waves, and a distinct second group of transducer elements, labeled receiving group (R), to detect ultrasound echoes reflected by said ultrasound scatterers. The system also comprises a processing system (202) comprising transmission and reception means, coupled to said probe (208), for providing coded signal to said transmitting group (T) and receiving signals from said receiving group (R) respectively; transmission beam-forming means (103) for focussing the ultrasound waves on a focus line, reception beam-forming means (105) for forming beam-summed received signals from signals received from the focus line and processing means for processing said beam-summed received signals to form decoded signals so as; and means for displaying an image (109) that is a function of said decoded signals.
Owner:KONINKLIJKE PHILIPS ELECTRONICS NV
Ultrasonic scattering coefficient optimal computation method for crack direction recognition
ActiveCN104280455AAnalysing solids using sonic/ultrasonic/infrasonic wavesProcessing detected response signalFull matrixMeasurement precision
The invention relates to an ultrasonic scattering coefficient optimal computation method for crack direction recognition, belonging to the field of nondestructive examination. According to the method, an ultrasonic phased array detection system is used for acquiring full-matrix data of a crack defect; firstly, the acquired data are used for performing full-focusing imaging on the defect to determine the position of the defect and then a scattering coefficient space distribution of the crack defect is computed to determine an angle of the crack; the quantity of wafers included in a sub array and the quantity of wafers between adjacent sub arrays greatly affect the measurement precision of the crack angle. A plurality of evaluation indexes are used for evaluating the quantity of a crack angle measurement result according to the quantities of the wafers included in different sub arrays and the wafers between the adjacent sub arrays, and the measurement result is comprehensively evaluated by a main component analysis method to obtain an optimal measurement result; corresponding parameters, namely the quantities of the wafers included in the sub arrays and the quantity of the wafers between the adjacent sub arrays, are optimal detection parameters.
Owner:BEIJING UNIV OF TECH
Preparation method for modified diaphragm for lithium-sulfur battery, modified diaphragm and lithium-sulfur battery adopting multiple layers of modified diaphragms
ActiveCN105489814AImprove electrochemical performancePromote circulationCell seperators/membranes/diaphragms/spacersFinal product manufactureMass ratioLithium–sulfur battery
The invention discloses a preparation method for a modified diaphragm for a lithium-sulfur battery, the modified diaphragm and the lithium-sulfur battery adopting multiple layers of the modified diaphragms. The preparation method comprises the following steps of only uniformly mixing a conductive agent with a binder at the mass ratio of 1:1-5:1, then scattering the mixture into solvent; performing mechanical stirring or ultrasonic scattering to obtain uniformly-dispersed coating slurry; coating the surface of a diaphragm substrate with the obtained coating slurry, and performing vacuum drying to obtain the modified diaphragm for the lithium-sulfur battery. The lithium-sulfur battery adopting multiple layers of the modified diaphragms prepared by the method is good in electrochemical performance, low in cost and suitable for industrial production.
Owner:CHANGSHA RES INST OF MINING & METALLURGY
Preparation method of graphene-enhanced epoxy resin adhesive
InactiveCN105086905ALow costEasy to prepareNon-macromolecular adhesive additivesMacromolecular adhesive additivesEpoxyEnvironmental resistance
The invention provides a preparation method of a graphene-enhanced epoxy resin adhesive, and relates to the preparation method of the epoxy resin adhesive. The preparation method aims at solving the problems that an existing epoxy resin adhesive is small in shearing strength, low in tensile strength, low in elasticity and low in hardness. According to the preparation method, graphene is uniformly dispersed in an epoxy resin matrix through a vacuum drying and ultrasonic scattering method, and the graphene-enhanced epoxy resin adhesive is prepared. The preparation method specifically includes the following steps of firstly, preparing graphene through a chemical oxidoreduction method; secondly, scattering graphene in the epoxy resin matrix; thirdly, preparing a graphene-enhanced epoxy resin adhesive connector. Compared with pure epoxy resin, the preparation epoxy resin adhesive is more excellent, easy to operate, low in cost, environmentally friendly, high in bonding strength, and more beneficial for being applied to fields with high requirements for the bonding technology.
Owner:HEILONGJIANG UNIV
Methods of monitoring cellular death using low frequency ultrasound
A method of detecting cellular damage within a subject comprises transmitting low frequency ultrasound (20 MHz or below) into a selected site within the subject wherein the selected site has been exposed to a stress capable of causing cellular death at the selected site. At least a portion of ultrasound backscattered from the ultrasound transmitted into the selected site is received. The received backscattered ultrasound is compared to a control backscatter measurement. An increase or a decrease in intensity or spectral slope of the received backscattered ultrasound when compared to the control backscatter measurement indicates cellular death or damage at the selected site within the subject.
Owner:SUNNYBROOK HEALTH SCI CENT
Nano silver prepared through low-temperature reducing of reducing sugar, preparing method of nano silver and application of nano silver to conductive ink
InactiveCN106735290ASecurity advantageEnvironmental advantagesTransportation and packagingMetal-working apparatusWater basedCarbonization
The invention discloses nano silver prepared through low-temperature reducing of reducing sugar, a preparing method of the nano silver and application of the nano silver to conductive ink. The preparing method comprises the steps that water is added in the reducing sugar and polyvinylpyrrolidone to prepare a solution A; a sodium hydroxide solution is added to silver nitrate to adjust PH to prepare a solution B; and the solution B is added in the solution A, and after the reaction is over, centrifugal scattering, ultrasonic oscillation cleaning, drying and grinding are conducted, and then nano silver powder is obtained. The nano silver powder is mixed with a connecting agent and an addition agent, and water-based UV conductive ink is obtained after ultrasonic scattering. The glucose can be adopted as a reducing agent, and very large beneficial effects are achieved in the aspects of safety, environment friendliness, sustainability and the like. The glucose is utilized for low-temperature reducing of the silver nitrate, and the defect of degeneration and carbonization of the glucose at the high temperature can be overcome. Ultrasonic waves are adopted for cleaning nano silver suspension liquid, residues of the reducing agent are avoided, the conductive performance of the prepared conductive ink is better, and the conductive ink can be well applied to many fields of RFID antenna printing and the like.
Owner:SOUTH CHINA UNIV OF TECH
Liquid metal nanoparticles with core-shell structure and preparation method thereof
InactiveCN109482859AGood dispersionSmall particle sizeMaterial nanotechnologyTransportation and packagingMaterials preparationNanoparticle
The invention relates to a liquid metal nanoparticles with a core-shell structure and a preparation method thereof. According to the liquid metal nanoparticles with the core-shell structure, the liquid metal is mixed with a high-viscosity organic material, after ultrasonic scattering, fine liquid which is uniformly dispersed on the upper layer is taken out, and continuously carrying out ultrasonicscattering, until the liquid metal nanoparticles with the core-shell structure are prepared. According to the method, the liquid metal nano-particles is prepared, the particle size is small, the sizedistribution is centralized, the preparation process is simple, fast and efficient, the cost is low, the implementation is easy, the prepared nano-particles can stably exist and still have no obviousagglomeration and sedimentation after being placed for more than 100 days, so that a good foundation for material preparation is provided for application of the liquid metal nano-particles.
Owner:TECHNICAL INST OF PHYSICS & CHEMISTRY - CHINESE ACAD OF SCI
Treatment instrument system
A treatment instrument system according to the present invention includes: an endoscope having a treatment instrument channel; an ultrasound probe inserted through the treatment instrument channel of the endoscope; an ultrasound observing apparatus having a blood flow display function and a distance measuring function; a treatment instrument having, at a distal end portion, an ultrasound scattering portion for scattering ultrasound; and an over tube having an endoscope insertion path through which the endoscope can be inserted and a treatment instrument insertion path through which the treatment instrument can be inserted, and having, at a distal end portion, an ultrasound scattering portion for scattering ultrasound.
Owner:OLYMPUS CORP
Ultrasonic scatterer, ultrasonic imaging method and ultrasonic imaging apparatus
InactiveUS20050004469A1Improve spatial resolutionUltrasonic/sonic/infrasonic diagnosticsWave based measurement systemsUltrasonic scatteringUltrasound probe
The ultrasonic scatterer of the invention comprises gas-containing particles having an average particle size of 0.01 μm to 10 μm, the ultrasonic imaging method of the invention comprises transmitting an ultrasonic wave continuing for ten cycles or more; transmitting an ultrasonic wave continuing for four cycles or more and less than ten cycles after a predetermined period passes, and the ultrasonic imaging apparatus of the invention comprises transmitting means for sending a driving signal to the ultrasonic probe so as to transmit, to a subject, an ultrasonic wave continuing for four cycles or more and less than ten cycles after a predetermined period passes subsequently to transmitting, to the subject, of an ultrasonic wave continuing for ten cycles or more.
Owner:FUJIFILM CORP
Method for measuring absolute stress of concrete under uniaxial stress by applying ultrasonic scattering wave method
ActiveCN107449664AAccurate measurement of absolute stressEfficient detectionMaterial strength using tensile/compressive forcesMechanicsUltrasonic scattering
The invention discloses a method for measuring absolute stress of concrete under uniaxial stress by applying an ultrasonic scattering wave method. The method comprises the following steps: firstly, providing a standard concrete test block which is consistent with a to-be-tested concrete member, and performing an ultrasonic scattering wave test in a first loaded mode; secondly, drawing original waveform diagrams in various load states and a relationship curve of scattering wave travel-time difference change rate and stress; thirdly, performing the ultrasonic scattering wave test on the to-be-tested concrete member in a second loaded mode, wherein the second loaded mode is contained in the first loaded mode; fourthly, drawing original waveform diagrams of the to-be-tested concrete member in various load states and a relationship curve of the scattering wave travel-time difference change rate and the stress; fifthly, finding the initial position of the relationship curve of the scattering wave travel-time difference change rate and the stress of the to-be-tested concrete member on the curve of the standard concrete test block, wherein the stress value corresponding to the initial position is the absolute stress. The method can evaluate the absolute stress of the to-be-tested concrete member.
Owner:RES INST OF HIGHWAY MINIST OF TRANSPORT
Preparing method for zirconium boride dispersion strengthening tungsten powder
The invention discloses a preparing method for zirconium boride dispersion strengthening tungsten powder, and relates to metal tungsten powder preparing. In the preparing method, deionized water, ammonium metatungstate and nano zirconium boride particles are prepared into a solution according to the needed proportion, after being subjected to uniform stirring and ultrasonic scattering, the solution is injected into liquid nitrogen, a frozen precursor is obtained, the frozen and dried precursor is roasted in the argon atmosphere with the temperature ranging from 400 DEG C to 600 DEG C, reduction of (500 DEG C-650 DEG C)*2h+ (700 DEG C-900 DEG C)*1 h is conducted in the hydrogen atmosphere, the temperature rise rate is (2-10) DEG C / min, the hydrogen flow is (0.1-1.0) L / min, and the dispersion strengthening tungsten powder is obtained. A tungsten base body obtained through the tungsten powder is sintered, particles are evenly dispersed in the interiors of crystal grains and grain boundaries, the size of the particles is the nano level, an obtained block is subjected to the mechanical test, and it is proved that the mechanical performance of the block is obviously improved. The dispersion strengthening tungsten prepared through the method has very high grain-boundary strength; and meanwhile, compared with traditional metal carbide and rare earth oxide dispersion particles, zirconium boride dispersion strengthening can reach a higher strengthening and toughening effect under the smaller adding amount.
Owner:UNIV OF SCI & TECH BEIJING
Ultrasonic focused river sediment concentration on-line measurement method
ActiveCN106769734AIncrease sound energyHigh sensitivityParticle suspension analysisScattering attenuationUltrasound attenuation
The invention discloses an ultrasonic focused river sediment concentration on-line measurement method which comprises the following steps: setting up a set of ultrasonic focused river sediment concentration on-line measurement devices taking a focused ultrasonic probe as a core; debugging a measurement system before measuring and starting the measurement devices for measuring; performing a symbolic dynamic filter analysis on acquired signals, so as to obtain parameter concentration measure related to river sediment concentration; establishing a relationship diagram between the concentration measure and the river sediment concentration, so as to obtain a measurement model. According to the measurement method disclosed by the invention, the ultrasonic scattering attenuation in the measurement process can be effectively reduced, the sensitivity and the accuracy of the measurement system are improved, the defects of low sensitivity and big error with a part of scope caused by calculation of an attenuation average are improved, and the measurement method can be widely applied to measurement of concentration of suspended sediment in multi-river regions.
Owner:CHINA JILIANG UNIV
Treatment instrument system
ActiveUS8167808B2Suture equipmentsUltrasonic/sonic/infrasonic diagnosticsEndoscopeUltrasound scattering
Owner:OLYMPUS CORP
Preparation method of magnetic sepharose gel microspheres
ActiveCN103007844ASmall magnetic responsivenessSmall particle sizeOther chemical processesOrganic/organic-metallic materials magnetismActive agentMicrosphere
The invention discloses a preparation method of magnetic sepharose gel microspheres. The preparation method comprises the following steps: (1) preparing ferrous powder with scattered active agent: adding the ferrous powder into surface active agent water solution, heating and mechanically stirring; washing and drying the obtained product to obtain the ferrous powder with scattered active agent; and (2) preparing the magnetic sepharose gel microspheres: dissolving an emulsifying agent span80 into liquid paraffin for preheating; taking sepharose gel and the ferrous powder with scattered active agent, adding secondary distilled water to prepare sepharose solution, conducting ultrasonic scattering and heating and dissolving; adding the dissolved sepharose solution into span80-containing liquid paraffin solution; after the reaction is finished, cooling a sample and conducting slow and mechanical stirring; separating the sample, and washing to obtain the magnetic sepharose gel microspheres. By adopting a reversed phase suspension embedding method, the prepared magnetic sepharose gel microspheres are strong in magnetic responsibility, and have a good effect on the separation and purification of protein.
Owner:无锡百运纳米科技有限公司
Grain characteristic-based improved split spectrum method in cast iron ultrasonic flaw detection
InactiveCN104251887AImprove signal-to-noise ratioHigh detection sensitivityProcessing detected response signalNoiseUltrasound scattering
The invention aims to provide a new method for ultrasonic flaw detection of a pressure-bearing cast iron device, namely a grain characteristic-based improved split spectrum method in ultrasonic flaw detection of the pressure-bearing cast iron device, wherein compared with a conventional cast iron flaw detection, the method enables a system to obtain higher signal-to-noise ratio, faster response time and higher flexibility. Because an internal organizational structure of cast iron is not uniform and the grain size is larger, when ultrasonic waves are used for flaw detection, attenuation of the ultrasonic waves is larger when in propagation, sporadic reflection is prone to generate, and forest-like or grass-like echoes are produced, resulting in poor flaw detection sensitivity. The method utilizes effects of an average grain size and an crystal orientation angle (an included angle of the acoustic wave incident direction and the grain axis) of the cast iron internal grain characteristics on ultrasonic scattering and attenuation, a noise time-frequency characteristic and a flaw echo frequency dispersion characteristic with obvious grain characteristics are caused, optimized split spectrum parameters are obtained through analysis of noise and echo signals, and thus with utilization of the split spectrum technology, the scattering noise can be well reduced and the ultrasonic echo signal sensitivity can be well improved.
Owner:CHINA SPECIAL EQUIP INSPECTION & RES INST +1
Ultrasonic non-destructive characterization method for structure uniformity of non-uniform medium
ActiveCN112083068AEasy to implementImprove robustnessAnalysing solids using sonic/ultrasonic/infrasonic wavesMaterial analysis using wave/particle radiationEngineeringSupport vector regression machine
The invention discloses an ultrasonic non-destructive characterization method for the structure uniformity of a non-uniform medium, and belongs to the technical field of ultrasonic non-destructive detection and evaluation of materials. Directed at the problems of complex ultrasonic scattering mechanism and difficulty in effective decoupling of tissue uniformity information caused by multiphase, nonhomogeneity, irregular scatterer morphology and large size change range in the ultrasonic non-destructive characterization process of the structure uniformity of the non-uniform medium, the ultrasonic non-destructive characterization method for the structure uniformity of the non-uniform medium adopts the ultrasonic pulse echo technology, and combines wavelet transform multi-scale analysis and asupport vector regression machine learning algorithm for non-destructive characterization on the non-uniform medium structure uniformity. The characterization method has the advantages of easy implementation, high robustness, high characterization precision and the like, overcomes the limitation that a traditional fitting method and a regularization method are difficult to deal with complex nonlinearity and ill-posedness problems of a physical mechanism, and has good application and popularization prospects.
Owner:DALIAN UNIV OF TECH
Circulating multi-stage ultrasonic scattering method
The invention discloses a cyclic multistage ultrasonic disperse method, wherein the invention serially connects multistage ultrasonic dispersers with different powers and frequencies, continuously pumps the mixed liquid in a liquid groove into an inlet of a first-stage ultrasonic disperser, and feeds the mixed liquid dispersed by the first-stage ultrasonic dispersers into a second-stage and a third-stage ultrasonic dispersers via the pressure of pump to be dispersed, and the invention processes aforementioned steps to realize multistage ultrasonic disperse until reaching preset disperse demand. The invention can break the accumulated slag in fuel oil into uniform ones, and reduce energy consumption via high-efficiency cyclic multistage ultrasonic disperser, with small volume, simple maintenance and high disperse efficiency.
Owner:HANGZHOU DIANZI UNIV
Ultrasonic scatterer, ultrasonic imaging method and ultrasonic imaging apparatus
InactiveUS7338451B2Ultrasonic/sonic/infrasonic diagnosticsWave based measurement systemsUltrasonic imagingUltrasound probe
Owner:FUJIFILM CORP
Acceleration and enhancement methods and system for ultrasound scatterer structure visualization
ActiveUS20160133020A1Quality improvementImprove resolutionUltrasonic/sonic/infrasonic diagnosticsImage enhancementSonificationComputer science
The present invention provides an acceleration and enhancement methods for ultrasound scatterer structure visualization. The method includes: obtaining an ultrasonic image, calculating all values of the ultrasonic signal points in each mth window centered at a nth signal point to obtain a plurality of original statistical values anxm, obtaining a plurality of mth statistical values by averaging value of original statistical values in the same window, calculating a plurality of mth weighting values based on the statistical values by different weighting formulas, multiplying each weighting value with the original statistical values corresponding to the various size of windows, summing up to obtain an ultrasound structure scatterer value of the nth ultrasonic signal point, and generating an ultrasound scatterer structure image based on a matrix of the ultrasound scatterer values. The present invention further combined interpolation method can reduce the computation time and retain the 80% accuracy.
Owner:AMCAD BIOMED CORP
Defect classification method and system based on ultrasonic phased array imaging
ActiveCN114359193AAccurate scatteringAccurately reflectImage analysisAnalysing solids using sonic/ultrasonic/infrasonic wavesPhased arrayUltrasound scattering
The invention provides a defect classification method and system based on ultrasonic phased array imaging, and belongs to the field of nondestructive detection.The method comprises the steps that ultrasonic phased array imaging is adopted for a to-be-detected sample piece to obtain ultrasonic full-matrix data; performing full-focusing processing on the ultrasonic full-matrix data, performing color coding according to the signal amplitude, and obtaining an image of the sample piece to be detected; preprocessing an image of a to-be-detected sample, inputting the preprocessed image into the classification prediction model, and obtaining defect classification of the to-be-detected sample; a method for training the classification prediction model comprises the following steps of: acquiring simulation data by simulating ultrasonic phased array imaging by utilizing a defect ultrasonic scattering data finite element simulation method; after full-focusing processing is carried out on the simulation data, a simulation image is obtained; preprocessing the simulation image and then performing data enhancement; carrying out image feature extraction on the simulation image by adopting a convolutional neural network; and inputting the image features into a full connection layer, and training a classification prediction model by taking defect classification as output. According to the invention, the accuracy of defect classification is improved.
Owner:HUAZHONG UNIV OF SCI & TECH +1
Ultrasonic measurement system and detection method for detecting deep structural fissures
PendingCN107290429AIrrelevantQuantitative Feature ScaleAnalysing solids using sonic/ultrasonic/infrasonic wavesConvertersFrequency spectrum
The present application discloses an ultrasonic measurement system and a detection method for detecting deep structural fissures. By utilizing the detection method, the size of a deep sub-wavelength-scale linear micro-fissure of a material can be quantitatively detected. After being excited by ultrasonic pulses, the micro-fissure deep in the material can generate ultrasonic scattering and reflection; after being received by an ultrasonic transducer, ultrasonic signals pass through a signal amplifier and an analog-to-digital converter and are stored in a computer; and a power spectrum of the ultrasonic signals is obtained by computing. A spectrum parameter, namely a power spectrum slope, can be obtained by carrying out linear fitting on low-frequency bands of the power spectrum, the spectrum slope and the diameter of the micro-fissure are in one-to-one correspondence, and the diameter of the sub-wavelength micro-fissure can be quantitatively evaluated by computing the slope. Because the quantitative detection method needs a low working frequency, the method provides a non-invasive, non-ionizing, cheap and safe method for evaluating the scale of the deep micro-fissure.
Owner:WUXI HAIYING ELECTRONICS MEDICAL SYST
High-heat-conduction-performance graphene metal composite multi-layer radiator and preparing method thereof
ActiveCN107314353AImprove cooling efficiencySimple processElectrolytic coatingsLighting heating/cooling arrangementsUltrasonic dispersionMaterials science
The invention discloses a high-heat-conduction-performance graphene metal composite multi-layer radiator and a preparing method thereof, and belongs to the technical field of heat dissipation. The radiator comprises a metal base layer, a graphene film layer evenly deposited on the surface of the metal base layer, and a welding part. The preparing method of the high-heat-conduction-performance graphene metal composite multi-layer radiator comprises the following steps that graphene powder and an additive are added in an absolute ethyl alcohol solution, and evenly-scattered graphene dispersion liquid is obtained through ultrasonic scattering; equal-thickness strip-shaped metal sheets are adopted and subjected to surface treatment through dilute nitric acid, deionized water, absolute ethyl alcohol and ultrasonic waves, and then the equal-thickness strip-shaped metal sheets serve as a cathode; the cathode and an anode are jointly immersed in the graphene dispersion liquid to be subjected to electrophoretic deposition; then after the metal base layer is tightly rolled into a multi-layer cylinder from one end, the other end of the metal base layer is welded and fixed to the outer side of the cylinder to be subjected to annealing treatment, and the cake-shaped graphene metal composite multi-layer radiator is formed through cutting in the direction perpendicular to the axial direction of the cylinder. The radiator is high in heat dissipation efficiency, the technology is simple, energy saving and environment friendliness are achieved, cost is low, and the heat dissipation efficiency is high.
Owner:鄂尔多斯市紫荆创新研究院
Process and device for efficiently treating mixed raw material biogas slurry
PendingCN113173664ASmall sizeThe effect of high-efficiency air flotation separationWater/sewage treatment with mechanical oscillationsTreatment involving filtrationFiltrationDrip irrigation
The invention discloses a process and a device for efficiently treating mixed raw material biogas slurry. The process for efficiently treating the mixed raw material biogas slurry comprises the following steps: S1, primary filtration; S2, ultrasonic scattering; S3, primary dosing and flocculation; S4, secondary dosing and flocculation; S5, efficient air flotation; and S6, efficient filter pressing. The device for the process for efficiently treating the mixed raw material biogas slurry comprises a grille dirt cleaner, an ultrasonic generator, a doser, an air floater and a filter press, wherein the output end of the ultrasonic generator is connected with the water inlet of the air floater through a dosing pipeline, the doser is communicated with the middle of the dosing pipeline through a first branch, and the doser is communicated with the dosing port of the air floater through a second branch. According to the invention, the diameter of suspended matter particles in the treated biogas slurry is controlled to be 63 microns or below, the indexes of the biogas slurry meet the requirements of various indexes of NY / T2596-2014 biogas manure, the requirement for using the biogas slurry by using a drip irrigation pipe network is met, and the national call about drip irrigation development is complied with.
Owner:常州思特恩节能科技有限公司
Preparing method for aluminum base graphene and carbon nano tube composite heat dissipation material
ActiveCN107313102AImprove cooling efficiencyHigh mechanical strengthElectrolytic coatingsHeat-exchange elementsCarbon nanotubeUltrasonic dispersion
The invention relates to a preparing method for an aluminum base graphene and carbon nano tube composite heat dissipation material, and belongs to the technical field of heat dissipation material preparing. The method comprises the steps that equivalent graphene, carbon nano tube powder and aluminum salt are added in an absolute ethyl alcohol solution, and evenly-scattered graphene and carbon nano tube mixed electrophoresis liquid is obtained through ultrasonic scattering; and after being subjected to surface treatment through dilute nitric acid, deionized water, absolute ethyl alcohol and ultrasonic waves, aluminum base sheets serve as a cathode; graphite sheets serve as an anode, and the cathode and the anode are immersed in the mixed electrophoresis liquid to be subjected to electrophoretic deposition; then, the aluminum base sheets are stacked into multiple layers from one end, cold press forming is conducted, the other ends of the aluminum base sheets wrap the outer face of a pressed and formed sample by one circle, and the other ends of the aluminum base sheets are welded and fixed to the side face of the sample; and annealing treatment is conducted at the nitrogen atmosphere, and accordingly the aluminum base graphene and carbon nano tube composite heat dissipation material is obtained. According to the method, the technology is simple, energy saving and environment friendliness are achieved, cost is low, and the prepared composite heat dissipation material is high in heat dissipation efficiency and high in mechanical strength.
Owner:鄂尔多斯市紫荆创新研究院
Turbidity sensor based on ultrasound measurements
ActiveUS20180188210A1Robust and reliable for measuringLow costTariff metering apparatusVolume/mass flow measurementSonificationTransducer
A turbidity measurement device for measuring turbidity of a fluid flowing in a flow tube. A first transducer transmits ultrasonic signals through the fluid in the turbidity measurement section so as to provide a first ultrasonic standing wave between the first and second section ends. A receiver transducer receives the ultrasonic scattered response from particles in the fluid flowing through the turbidity measurement section. A control circuit operates the transducers and generates a signal indicative of the turbidity of the fluid in response to signals received from the receiver transducer. Preferably, the device may comprise a second transducer for generating a second ultrasonic standing wave with the same frequency, and further the two transducers may be used to generate a measure of flow rate by means of known ultrasonic techniques. This flow rate may be used in the calculation of a measure of turbidity. Both turbidity facilities and flow rate facilities may be integrated in a consumption meter, such as a heat meter or a water meter.
Owner:KAMSTRUP
Implantable ultrasonic conduction and drug delivery device
ActiveCN110384875AImprove efficacyLow efficacy of treatmentUltrasound therapyMedical devicesTissue fluidDrug administration
Owner:刘泽英
System and method for positioning damage of HDPE (High-Density Polyethylene) film of refuse landfill
PendingCN113702505AShort detection cycleStrong timelinessAnalysing solids using sonic/ultrasonic/infrasonic wavesMaterial analysis using acoustic emission techniquesSelf excited oscillationMechanical engineering
The invention discloses a system and a device for positioning damage of an HDPE (High-Density Polyethylene) film of a refuse landfill. The system and the device utilize the scattering characteristic of ultrasonic waves. By means of wave piezoelectric patches laid on the upper surface of a to-be-detected area of an HDPE film in a regular plane geometry mode, a wave piezoelectric patch generator controls half of the piezoelectric patches to generate ultrasonic waves in a self-excited oscillation mode, and preferably, in order to prevent mutual interference of detection systems, the piezoelectric patches on the designated opposite sides receive ultrasonic signals. Scanning is completed according to the process, an analog quantity damage signal is obtained, time-energy density characteristics are extracted through analog-to-digital conversion and wavelet analysis, damage positioning is achieved by combining probability imaging according to the energy density difference when damage exists or not, a damage alarm is given out through system control, and the damage position can be displayed. The system can solve the problems that an existing naked film detection method is low in timeliness, gas leaks, and the manual workload is large, active detection of the HDPE film is achieved through the vibration inducing piezoelectric plate, and the omission ratio is effectively reduced.
Owner:HEBEI UNIV OF ENG
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