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43results about How to "Relaxed conditions of use" patented technology

Integrated portable confocal opto-acoustic microscopy imaging device and method

The invention belongs to the technical field of microscopy imaging, and discloses an integrated portable confocal opto-acoustic microscopy imaging device and a method. The imaging device comprises an opto-acoustic excitation light source, an acousto-optical confocal opto-acoustic detector, a photodiode, a miniature X-Y two-dimensional galvanometer, a spectroscope, a lens, a sample table, a double-channel parallel acquisition card and a computer with acquisition control software and two-dimensional galvanometer control software. The method includes steps that after the direction of laser light emitted from the opto-acoustic excitation light source is changed via the miniature X-Y two-dimensional galvanometer, the laser light is focused by the balsaming lens and irradiates on samples to excite opto-acoustic signals, the opto-acoustic signals are received by the acousto-optical confocal opto-acoustic detector, the incident angle of a light beam is continuously changed by the two-dimensional galvanometer so that the samples are scanned, and finally, an opto-acoustic image is rebuilt by maximum projection algorithm. A micro-chip laser device and the miniature X-Y two-dimensional galvanometer are integrated to form the portable confocal opto-acoustic microscopy imaging device, mobility is good, imaging speed is fast, and resolution ratio and contrast ratio are high.
Owner:SOUTH CHINA NORMAL UNIVERSITY

Static human heartbeat and respiration signal separation and reconstruction method based on OMP

The invention provides a static human body heartbeat and respiration signal separation and reconstruction method based on OMP. The method comprises the steps of firstly, acquiring distance informationof a human body target through analysis and calculation according to actual human body target detection data, and constructing a distance time graph; then performing direct current offset correctionon the I / Q signals, and calculating phase information through an arc tangent function; performing phase unwrapping on the detected to-be-detected human body target based on an extended DACM algorithmof derivation operation, solving the problem of phase ambiguity, and performing phase difference to enhance heartbeat signals; and using two two-stage cascaded four-order IIR band-pass filters for separating heartbeat signals from breathing signals, and finally completing separation and reconstruction of the breathing signals and the heartbeat signals through a compressed sensing theory and an OMPalgorithm. The invention innovatively provides the static human body heartbeat and respiratory signal separation and reconstruction method based on orthogonal matching pursuit, the influence of harmonic waves and noise on heart rate and respiratory rate estimation is effectively reduced, and the accuracy of final heartbeat and respiratory rate estimation is greatly improved.
Owner:CHONGQING UNIV OF POSTS & TELECOMM

Accurate displacement measurement device with real scales

InactiveCN102506718AImprove reliabilityRelaxation of conditions of useUsing optical meansMeasurement deviceLight source
An accurate displacement measurement device with real scales comprises a main scale (101), an auxiliary scale (201), a light source (301), a light path (401) and a signal processing circuit (203). The scales are encoded by using patter characteristics so as to avoid delta encoding and problems caused by the delta encoding. The accurate displacement measurement device particularly relates to a scale reading method which is used for substituting displacement measurement devices with grids of gratings, magnetic grids and the like as characteristics. An electronic scale produced by the device has real scales, thereby being capable of completely substituting traditional electronic scales.
Owner:黄继祥

Device for online measuring wall thickness of hot-rolled metal pipe by using gamma rays

The invention discloses a device for online measuring the wall thickness of a hot-rolled metal pipe by using gamma rays, which comprises a horizontally movable field measurement C-shaped box, a gamma ray detector, a charge coupled device (CCD) camera, a radioactive source, a field control box with a programmable logic controller (PLC) and a measurement signal conversion unit, an industrial personal computer main cabinet, an exchanger, a database server, a terminal set, a field cooling circulation water channel, a gas circuit and an infrared temperature measurer. The device realizes continuous automatic measurement on a hot-rolled metal pipe production line, and simultaneously can output control signals for realizing the automatic closed-loop control of a rolling mill. The CCD camera takes part in eccentricity correction calculation, so using restrictions to the measurement device are relaxed, and the measurement accuracy is improved and is lower than + / -0.2 percent. Simultaneously, measurement data is digitally transmitted, so the device realizes the long-distance and anti-interference transmission of the measurement signals and effectively solves the problems of long distance between a measurement field and an operating room and intensive field interference.
Owner:天津市核人仪器设备有限公司

Integrated induction melting gas atomization powder manufacturing device and gas atomization powder manufacturing method

The invention provides an integrated induction melting gas atomization powder manufacturing device and a gas atomization powder manufacturing method. The integrated induction melting gas atomization powder manufacturing device comprises a gas atomization powder manufacturing device body. The gas atomization powder manufacturing device body comprises a supporting frame and a gas atomization crucible. A quarts tube used for collecting alloy powder is arranged on the supporting frame. One end of the quarts tube is connected with an alundum tube in which protective gas is led. The supporting frame is provided with an induction coil, and the gas atomization crucible is arranged in the induction coil. A nozzle is arranged at the bottom of the gas atomization crucible and faces the interior of the quarts tube. The axis of the nozzle of the gas atomization crucible is perpendicular to the axis of the quarts tube. An opening of the alundum tube faces the position of an outlet of the nozzle, and the opening end of the quarts tube is sealed through a stopper. The integrated induction melting gas atomization powder manufacturing device is simple in structure, small in occupied area and easy to assemble, the phenomenon that liquid blocks the nozzle cannot happen in the powder manufacturing process, meanwhile, the gas leading flow can be changed, and therefore the particle size distribution ratio of powder manufacturing is changed.
Owner:HARBIN INST OF TECH SHENZHEN GRADUATE SCHOOL

Preparation method of ceramic membrane with adsorption and interception functions

InactiveCN102260068AEnhanced adsorption performance and retentionGood adsorption effectWater/sewage treatment by sorptionClaywaresIonOrganic molecules
The invention provides a preparation method of a novel ceramic membrane with adsorption and interception functions. Combining modern adsorption technology and membrane technology, attapulgite is used to prepare a new type of ceramic membrane. Mix the attapulgite and deionized water evenly until it becomes a paste, pour it into a mold and press it into a circular ceramic sheet. It is first aged in a constant humidity environment for 3-7 days, taken out and dried in the natural environment of the laboratory for 2-5 days, sent to a muffle furnace for calcination, and after cooling, the surface is smoothed with sandpaper. configuration. The ceramic sheet is immersed in a sulfuric acid solution with a pH value of 2 to 6 for 8 to 24 hours, taken out, washed, soaked in deionized water for 8 to 24 hours, and dried under a dust-removing environment to form a ceramic film. The pore diameter of the ceramic membrane is 10-70nm, and it has adsorption performance and interception function at the same time. In addition to adsorption and retention of organic macromolecules, it also has good adsorption effect on small molecular organic substances and metal ions, and has the value of industrial promotion.
Owner:BEIJING UNIV OF CHEM TECH

Temperature error compensation method based on AI face distance detection

The invention provides a temperature error compensation method based on AI face distance detection, which belongs to the technical field of computer vision. The temperature error compensation method comprises the following steps of: step 1, preparing environment configuration; step 2, establishing a position corresponding relation; step 3, carrying out face detection in a visual image; step 4, calculating a face temperature; step 5, collecting data; 6, training a model and calculating a face distance; and step 7, perfecting a temperature compensation algorithm.
Owner:多维协同人工智能技术研究院(重庆)有限公司

Efficient chemical oxidation repairing method for organic polluted soil

The invention discloses an efficient chemical oxidation repairing method for organic polluted soil. The efficient chemical oxidation repairing method for the organic polluted soil comprises the following steps: mixing the organic polluted soil and water to prepare a slurry-state soil mixed solution; adding a binary compound organism-nonionic surfactant into the slurry-state soil mixed solution andthen adding an oxidizing agent; and performing oscillation in an oscillator and degrading the organic pollutant in the soil after oscillation treatment, wherein the oxidizing agent is SPC and the binary compound organism-nonionic surfactant is GLDA and Tween80. The efficient chemical oxidation repairing method for the organic polluted soil has the advantages of simple process condition, low operation requirement, high treatment efficiency and the like, and is suitable for repairing various kinds of organic polluted soil.
Owner:BEIJING GEOENVIRON ENG & TECH

Polymer-based multilayer foaming composite damping material and preparation method thereof

The invention relates to a polymer-based multilayer foaming composite damping material and a preparation method thereof. The damping material is formed by alternately arranging structural polymer layers and foaming polymer layers in a layered manner so as to form a high damping performance material having high strength and good toughness, wherein the structural layer comprises a strong rigidity polymer, and is used for controlling the size of gas bubble, limiting the thickness of the foaming layer and ensuring the good mechanical property of the whole material, the foaming layer comprises a thermoplastic elastomer, and can form uniform and dense gas bubbles so as to form the good damping performance polymer foaming layer, a large number of contact interfaces are formed between the foaminglayer and the structural layer, the layer structure remains good, and the interface improves the damping performance of the material through interlayer shearing. According to the present invention, the number of the micro-layers can be controlled and adjusted from two layers to thousands of layers, and the volume ratio of the structural layer to the foaming layer can be controlled as needed; and through the co-action of the foaming layer and the interlayer interface, the damping performance of the material is improved, and the material has characteristics of good mechanical property, no toxicity, no harm, environment protection and low cost of the required raw material.
Owner:苏州上品嘉新材料科技有限公司

Steel wire drawing and centering device for steam turbine assembly

The invention relates to a steel wire drawing and centering device for steam turbine assembly. The device has simple structure, is convenient to use and can adjust the steel wire more accurately. The device in the invention comprises a steel wire drawing frame, wherein the steel wire drawing frame is arranged on a support through a steel wire frame supporting plate and comprises a bottom plate; the bottom plate is provided with an adjusting device; a steel wire fixing frame is connected with the adjusting device; and the steel wire fixing frame is provided with a steel wire pulling block.
Owner:SHANDONG QILU ELECTRIC MOTOR MFG

Synergistic natural gas

The invention relates to a synergistic natural gas; each cubic meter of natural gas contains 6 to 10ml of synergistic additive; and the synergistic additive is mixed from potassium permanganate, nitromethane, hydrogen peroxide, sodium bicarbonate and solvent water. Every 1000 mass parts of water is mixed with 3 to 5 parts of potassium permanganate, 3 to 5 parts of nitromethane, 3 to 5 parts of hydrogen peroxide and 2 to 3 parts of sodium bicarbonate. The mixed gas provided by the invention has high heat under the same pressure condition, improves the heat efficiency to reach above 3000DEG C, realizes low loss of the same heat, and can realize low-cost use; and the high burning temperature realizes very significant advantages in industrial application (e.g. metal cutting, punching and the like); because the gas can be lit only by naked fire, the user conditions are relaxed and the use is safer; and the product can reduce the emission of waste gas, has better emission reduction effect, and realizes the purposes of cleanliness and environment protection.
Owner:李勇伯

Gamma-MnO2 loaded mixed non-metal ore clay low-temperature denitration catalyst and preparation method thereof

The invention belongs to the field of denitration catalyzing, and provides a gamma-MnO2 loaded mixed non-metal ore clay low-temperature denitration catalyst and a preparation method thereof. According to the catalyst, mixed non-metal ore clay is adopted as a carrier, an active component gamma-MnO2 is loaded, and the gamma-MnO2 loaded mixed non-metal ore clay low-temperature denitration catalyst is prepared. The catalyst is simple in preparation process, the prepared catalyst can achieve the effects of increasing the specific area, the pore volume and the aperture, and the strength of the catalyst is increased, so that the catalyst is easy to form and convenient to mount. In addition, the non-metal ore clay is low in price, and therefore the cost of the catalyst is greatly reduced.
Owner:CHANGZHOU UNIV

Instrumental magnitude conversion method for star sensor based on infinite-dimension space

The invention discloses an instrumental magnitude conversion method for a star sensor based on an infinite-dimension space. The method comprises the following steps: 1) using an infinite-dimensional vector in the infinite-dimensional space to describe a star spectral illuminance function and a band spectral response function; 2) obtaining the functional relation between the infinite-dimensional vector and the magnitude of each band through modeling analysis; 3) selecting the optimal band combination according to the band selection rule and establishing the corresponding redundant equations; 4) and solving the redundant equations by using the optimization algorithm with limited step size and direction and finally obtaining the instrument magnitude. The redundant equations of the multi-band magnitude data are solved to calculate the instrument magnitude so as to effectively reduce conversion error and improve conversion accuracy. As for the band selection rule, the optimal data source band combination can be automatically selected for different instrument bands so as to have good universality to a certain extent and be popularized for the conversion of other instrument stars of different bands.
Owner:BEIHANG UNIV

Multi-level double-pore structure composite photocatalyst, preparation and application thereof

The invention discloses a multi-level double-pore structure composite photocatalyst, preparation and application thereof. The composite photocatalyst consists of a tree-shaped mesoporous SiO2 template, TiO2, Au nanoparticles and a mesoporous SiO2 shell layer. The invention overcomes the defect that conventional TiO2 catalyst can only degrade organic dye molecules in an ultraviolet waveband, effectively broadens the use conditions of TiO2 photocatalyst, and also utilizes the metal-semiconductor synergistic effect to inhibit photoelectron-hole recombination so as to improve the catalytic efficiency; the photocatalyst has a multi-level double-pore structure, greatly improves the openness of a catalytic site while enhancing the loading capacity of a functional element, facilitates the interaction of the photocatalyst and substrate molecules so as to improve the photocatalytic efficiency, meanwhile, the structure can improve the stability of the catalyst, and the catalyst can be repeatedlyand efficiently used, thus avoiding the waste of product.
Owner:ZHEJIANG UNIV OF TECH

Checking method based on vibration positioning GIS partial discharge equipment

The invention provides a checking method based on vibration positioning GIS partial discharge equipment. The method is characterized in that a device is composed of following component of (1) a cylindrical cavity used for experiment and provided with a fixing hole, (2) a standard vibration signal generator, and (3) a to-be-checked detection device based on the vibration positioning GIS partial discharge equipment. The used method comprises the steps of firstly, using a generating method for converting coordinates of the cylindrical cavity into plane coordinates, marking points A of the coordinates like the attached map 1, secondly, utilizing the to-be-measured partial discharge positioning equipment for solving partial discharge coordinates, thirdly, repeatedly executing the step two, fourthly, solving mean values A' of the solved multiple sets of coordinates, comparing the mean values A' with the points A of the coordinates, and performing checking and debugging until the testing range is within a circle with the points A as the circle center and the radius of 10 cm. According to the method, the checking speed is high, a large amount of manpower and a large number of material resources can be saved, and the method plays an obvious role in checking of a production enterprise in the GIS partial discharge equipment.
Owner:BEIJING UNIV OF TECH

Bearing fault detection device and detection method

The invention relates to a bearing fault detection device. The device comprises a workbench, a direct-current gear motor device, a bearing seat, a laser self-mixing interference device, a data collection and analysis device and a computer, wherein the direct-current gear motor device, the bearing seat and the laser self-mixing interference device are all arranged on the workbench, a to-be-detectedbearing is installed on the bearing seat, the direct-current gear motor device is connected with the bearing, the laser self-mixing interference device is arranged on the side face of the bearing seat and is connected with the data collection and analysis device, and the data collection and analysis device is connected with the computer. The bearing fault detection device has the advantages of being capable of performing non-contact measurement, easy to operate, high in interference resistance, high in sensitivity, high in measurement precision, loose in application condition, low in cost andthe like.
Owner:LINGNAN NORMAL UNIV

Method for recycling viscose fiber acidic wastewater by using two-stage special membrane

The invention discloses a method for recycling viscose fiber acidic wastewater by using a two-stage special membrane, belonging to the technical field of recycling of acidic wastewater. The method ischaracterized by comprising the steps of treating raw water of viscose fiber acidic wastewater by using a pretreatment system; treating the water produced by pretreatment by means of a first stage special reverse osmosis membrane system so as to intercept part of sulfate radicals in the water, and improving the pH value of the water produced by the first stage special reverse osmosis membrane system at the same time; adjusting the pH value of the water produced by the first stage special reverse osmosis membrane system to 7-8.5, and then treating the water by using a secondary common reverse osmosis membrane system; enabling the water produced by the secondary common reverse osmosis membrane system to reach the desalination standard, and directly sending the water to a process workshop forrecycling. The method provided by the invention effectively solves the problem of water resource waste caused by the direct sewage treatment up-to-standard discharge in the prior art, reduces the sewage treatment and discharge costs; furthermore, the method also solves the problem that in the prior art, the pH of the acidic wastewater is adjusted to be neutral by using caustic soda directly, so that a large amount of alkali liquid is consumed, and the recycling cost is accordingly too high.
Owner:XINXIANG CHEM FIBER

Miniature piling machine

The invention relates to a minitype piling device, which comprises a base, a frame, a windlass and a pile hammer, wherein a steel wire rope of the windlass is connected with the pile hammer through a guiding pulley on the upper part of the frame, the frame is lower than 2.20 m, and a pile hammer guiding mechanism is arranged in front of the frame. The pile hammer guiding mechanism comprises an overground guide rod arranged on the upper part of the base and an underground guide rod arranged on the lower part of the base, a hanging ring is arranged on the top of the pile hammer, a pothook provided with a long control handle is matched with the hanging ring, and the end part of the steel wire rope of the windlass is hinged with the middle part of the pothook body. Aiming at the base sedimentation problem of silt groundsill or soft soil groundsill equipment of transformer substations, the minitype piling device is developed under the requirements that limited safety height is 2.2 m and the power is not cut off, and breaks through a forbidden zone that piling is difficult in a running transformer substation in a special construction environment when basic reinforcement is carried out. The minitype piling device is easy to operate, and has small volume and favorable adaptability to the reinforcement and correction of the base sedimentation of industrial production devices.
Owner:杨敏

Inorganic dechlorinating agent, preparation method and application thereof

The invention discloses an inorganic dechlorinating agent, a preparation method and an application thereof, the inorganic dechlorinating agent comprises a basic carrier, the basic carrier is coated with a rare earth oxide layer to form a composite carrier, the composite carrier is coated with an active component layer, the basic carrier is Al2O3, and the active component is alkali metal oxide; based on the total amount of the inorganic dechlorinating agent, the molar fraction of each component is as follows: 1-50% of alkali metal oxide, 0.5-5% of rare earth oxide and the balance of Al2O3; the rare earth oxide interacts with the surface of Al2O3, an alkali stable structure is formed on the surface of Al2O3, alkali metal is inhibited from acting with Al2O3 to generate sodium aluminate, the pore structure of alumina is better reserved, meanwhile, the rare earth oxide interacts with sodium oxide, sodium oxide is stabilized, loss of active components is prevented, more sodium oxide exists in the form of sodium hydroxide and better reacts with HCl, and therefore, the chlorine capacity is improved.
Owner:润和科华催化剂上海有限公司

Expansion joint for high-temperature feed bin

PendingCN107906294AImprove thermal expansion and contraction resistanceImprove stabilityPipeline expansion-compensationThermal insulationEngineeringThermal expansion
The invention belongs to the technical field of high-temperature silo design, and specifically relates to a high-temperature silo expansion joint, which includes: an inner elastic component, a connecting body and an outer elastic sheet, wherein the inner elastic assembly includes: a connecting support plate and an inner elastic sheet, Both ends of the connecting support plate are respectively connected to the upper and lower walls of the high-temperature silo, a supporting opening is provided in the middle of the connecting supporting plate, and the supporting opening extends horizontally to the Inside the high-temperature silo, the inner elastic sheet is arranged in the support opening; one end of the connecting body is connected to the connecting support plate and communicates with the support opening, and the other end is provided with the outer elastic sheet . The present invention releases the stress generated by the deformation of the high-temperature silo through the inner elastic sheet and the outer elastic sheet arranged inside and outside the silo, improves the thermal expansion and contraction resistance and the overall stability of the high-temperature silo, thereby improving the high-temperature The service life of the silo.
Owner:SHENWU TECH GRP CO LTD

A real-time monitoring device for river bank collapse based on pressure sensing technology

The invention discloses a real-time river bank collapse monitoring device based on a pressure sensing technology. The monitoring device comprises a pressure sensing module, a central processing module, a data transmission module and a power supply module; The pressure sensing module comprises horizontal and / or inclined line type pressure induction modules for measuring the collapse depth, the central processing module can convert a pressure value transmitted by the pressure sensing module into collapse width data of water front via a preset algorithm and store the data, and the data transmission module transmits riverbank collapse distance information to a remote terminal. Density difference among the soil, water and air as well as the pressure sensing technology is used to establish relation between the water front collapse width and data of pressure measurement points, vertical to the river, buried in the riverbank, the data of the pressure measurement points is converted into the water front collapse width data which is stored in real time and sent to the remote terminal, and collapse bank is monitored in an intelligent and informational way.
Owner:WUHAN UNIV

A method of checking and locating gis partial discharge equipment based on vibration

The invention provides a checking method based on vibration positioning GIS partial discharge equipment. The method is characterized in that a device is composed of following component of (1) a cylindrical cavity used for experiment and provided with a fixing hole, (2) a standard vibration signal generator, and (3) a to-be-checked detection device based on the vibration positioning GIS partial discharge equipment. The used method comprises the steps of firstly, using a generating method for converting coordinates of the cylindrical cavity into plane coordinates, marking points A of the coordinates like the attached map 1, secondly, utilizing the to-be-measured partial discharge positioning equipment for solving partial discharge coordinates, thirdly, repeatedly executing the step two, fourthly, solving mean values A' of the solved multiple sets of coordinates, comparing the mean values A' with the points A of the coordinates, and performing checking and debugging until the testing range is within a circle with the points A as the circle center and the radius of 10 cm. According to the method, the checking speed is high, a large amount of manpower and a large number of material resources can be saved, and the method plays an obvious role in checking of a production enterprise in the GIS partial discharge equipment.
Owner:BEIJING UNIV OF TECH

Flue gas atomization evaporation process and system for high-salt wastewater based on ash waste-heat recovery

A flue gas atomization evaporation process for high-salt wastewater based on ash waste-heat recovery comprises the following specific steps: the high-salt wastewater is treated by a deep filtration device; out-going water of the deep filtration device 1 is further treated by a pH adjusting device; out-going water of the pH adjusting device is softened by a softening device; out-going water of thesoftening device is introduced into the front section of an air-cooling mechanical slag removal device and a return type heating tube located at the bottom of a boiler through a waste-water conveyingpump, and is preheated by ash waste heat; and a spray nozzle sprays the preheated high-salt wastewater onto a horizontal flue between an air preheater and a dust catcher for flue-gas atomization evaporation. According to the invention, maximum preheating is carried out on the high-salt wastewater by recycling the ash waste heat and the characteristics of the return type heating tube, thereby not only greatly relaxing the use conditions of the flue gas atomization evaporation treatment technology, but also avoiding waste of high-level heat energy and improving the heat utilization efficiency ofpower plants.
Owner:ZHENGZHOU NORMAL UNIV

Production of tripheny-stannic chloride

Production of triphenyl tin tetrachloride is carried out by reacting tin with chlorine gas to obtain tin tetrachloride, lattice vector reacting magnesium with chlorobenzene in furanidine solvent, taking alkyl halide as initiating agent to obtain phenyl-magnesium-chloride, displacement reacting phenyl-magnesium-chloride with tin tetrachloride in methylbenzene solvent to obtain tin tetraphenyl, and disproportionation reacting tin tetraphenyl with tin tetrachloride to obtain the final product. It is cheap, has more yield, better safety coefficient and circulation usage.
Owner:江苏春江农化有限公司

Mixed dimethyl ether gas

The invention relates to mixed dimethyl ether gas which comprises dimethyl ether. 250-280 milliliters of additive solutions are added to one cubic meter of the mixed dimethyl ether gas; the additive solutions are prepared by mixing a first solution and a second solution; the first solution is prepared by mixing the following materials in parts by weight: 3-5 parts of potassium permanganate, 4-6 parts of aluminium trichloride, 2-3 parts of sodium hydroxide, 3-5 parts of petroleum ether and 1 part of ferrocene with pure water; the second solution is prepared by mixing 1.5-2.0 ml of hydrogen peroxide and 2-3 ml of acetone with the pure water. The mixed dimethyl ether gas provided by the invention can be used for enhancing the heat value of dimethyl ether under the condition of same pressure by adding the additive solutions, is less in heat consumption, can be used for realizing the low-cost usage, is widened in using condition and safer because the mixed dimethyl ether gas can be ignited by using a naked flame, and can be used for reducing the discharge of waste gas, enhancing the emission reduction effect and realizing the purposes of cleanness and environmental friendliness.
Owner:王海涛

Integrated portable confocal opto-acoustic microscopy imaging device and method

The invention belongs to the technical field of microscopy imaging, and discloses an integrated portable confocal opto-acoustic microscopy imaging device and a method. The imaging device comprises an opto-acoustic excitation light source, an acousto-optical confocal opto-acoustic detector, a photodiode, a miniature X-Y two-dimensional galvanometer, a spectroscope, a lens, a sample table, a double-channel parallel acquisition card and a computer with acquisition control software and two-dimensional galvanometer control software. The method includes steps that after the direction of laser light emitted from the opto-acoustic excitation light source is changed via the miniature X-Y two-dimensional galvanometer, the laser light is focused by the balsaming lens and irradiates on samples to excite opto-acoustic signals, the opto-acoustic signals are received by the acousto-optical confocal opto-acoustic detector, the incident angle of a light beam is continuously changed by the two-dimensional galvanometer so that the samples are scanned, and finally, an opto-acoustic image is rebuilt by maximum projection algorithm. A micro-chip laser device and the miniature X-Y two-dimensional galvanometer are integrated to form the portable confocal opto-acoustic microscopy imaging device, mobility is good, imaging speed is fast, and resolution ratio and contrast ratio are high.
Owner:SOUTH CHINA NORMAL UNIVERSITY

Phase permeability modifier for oil field fracturing and preparation method thereof

ActiveCN106632840BPermeability has little effectIncrease productionDrilling compositionSoil scienceFracturing fluid
The invention relates to the technical field of oilfield fracturing fluid additives, and discloses a phase permeability modifier for oilfield fracturing and a preparation method thereof. The phase permeability modifier for oilfield fracturing is prepared from the following raw materials: an emulsifying agent, diesel oil, an initiator, a polymeric monomer and water. A reservoir or middle and high water cut oilfields with complicated oil-water relationships can realize the effects of reducing the oil well water yield, improving the oil pump capacity and achieving water control and oil increase, so that the productivity of oil is improved; the phase permeability modifier is a long-chain high-molecular polymer, can effectively increase the water-phase permeability, is little in influence on oil-phase permeability, and has high selectivity water control performance; besides, the phase permeability modifier has high back-displacement performance and relatively high adsorption capacity; compared with the prior art, the drag reduction phase permeability modification performance is more excellent, and the oil well yield can be increased by more than 10%; and moreover, the phase permeability modifier is simple in production and loose in using condition, so that the phase permeability modifier can be widely applied to fracturing production increasing technique of oil-water layer reservoir phase permeability fracturing.
Owner:BC P INC CHINA NAT PETROLEUM CORP +1
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