Patents
Literature
Hiro is an intelligent assistant for R&D personnel, combined with Patent DNA, to facilitate innovative research.
Hiro

259results about How to "Little outside influence" patented technology

Device detecting magnetic conduction component defect based on magnetic striction torsion wave

A device to detect defects of magnetic conducting structures based on magnetoconstriction torsional waves belongs to an ultrasonic nondestructive detector, which overcomes shortcomings of high guide wave attenuation of vertical mode and remarkable frequency dispersion effect. During detection, it is unnecessary to process surfaces of the structure. The present invention comprises a pulse signal generator, a power amplifier, a magnetoconstriction torsional wave sensor, a signal preprocessor, an A/D converter and a computer. Wherein, the magnetoconstriction torsional wave sensor is composed of an excitation unit and a receiving unit. The computer controls generation of pulse signals. The pulse signal is amplified by the power amplifier and then generates torsional waves in the structure through the excitation unit. The receiving unit receives the torsional wave from the structure, which is processed by the signal preprocessor and then converted into digital signals by the A/D converter. The computer obtains defect information of the structure. The present invention can conveniently excite and receive torsional waves, detect defects along axis of the structure and adapt to long-distance detection of clad pipes and cables with PE jacket.
Owner:HUAZHONG UNIV OF SCI & TECH +1

Prefabricated tube pile embankment structure and construction method thereof

The invention relates to a prefabricated tube pile embankment structure, which mainly comprises a prefabricated tube pile, a vertical drain tube, a shallow curing plate, a thin reinforcement concrete continuous plate, a rubble layer, a bubble concrete rolling-resistant layer, a concrete protection layer, a slag layer and a pavement structure, wherein the prefabricated tube pile penetrates through a soft soil layer and extends a relative bearing stratum; a weld seam protection device is arranged outside a prefabricated tube pile welding end plate; the shallow curing plate is arranged at the periphery of the top of the prefabricated tube pile; the thin reinforcement concrete continuous plate is arranged on the shallow curing plate; the top of the prefabricated tube pile is embedded in the thin reinforcement concrete continuous plate; the vertical drain tubes are pre-buried in the thin reinforcement concrete continuous plate and the shallow curing plate, the lower ends of the vertical drain tubes are externally coated with a reverse filter geotextile which is communicated with the rubber layer on the thin reinforcement concrete continuous plate; the bubble concrete rolling-resistant layer, the slag layer and the pavement structure are sequentially arranged on the rubble layer. The prefabricated tube pile embankment structure is high in bearing capacity, less in differential settlement, high in overall structure stability, and convenient to construct.
Owner:JIANGSU ZHONGRUI ROAD & BRIDGE CONSTR

A device and method for calibrating the transmission axis of a polarizer

The invention discloses an apparatus and a method for calibrating a transmission axis of a polaroid. A combination of two to-be-calibrated polaroids and two dielectrics is utilized to realize accurate calibration on a transmission axis of a polaroid; and the apparatus and the method can be applied to measurement and detection fields, wherein the fields are related to polarization and include a polarized optical system, an ellipse polarized measuring field, and a laser technology and the like. According to the method, on the basis of rotationally symmetrical principles of an axis of homology and an absorption axis of a polaroid, two measurements on a polarization angle from the front and back sides are carried out on a linearly polarized beam at any angle; and then axises of homology or absorption axises of measured polaroids can be obtained; and transmission axises of the polaroids can be determined by utilizing different characteristics of linearly polarized lights of a horizontal S and a vertical P when the linearly polarized lights reflect on interfaces of the two dielectrics, so that high precision calibration of the transmission axises of the polaroids can be realized.
Owner:SHANGHAI INST OF TECHNICAL PHYSICS - CHINESE ACAD OF SCI

High-temperature pressure and temperature compounded sensor and preparation method thereof

The invention provides a high-temperature pressure and temperature compounded sensor and a preparation method thereof. The invention improves the structure of the previous patent of the inventor: silicon sapphire force sensor and the preparation method thereof. The manufacturing method comprises the following steps of manufacturing a platinum thermal resistor having same materials with a strain resistance leading-through platinum welding disc and a platinum welding disc of an internal leading-through at one corner of a non-stress area on a same sapphire wafer with a silicon strain resistor; adopting a welding metal foil strip to replace the original elastic metal contact or the internal leading-through in other forms, thus preparing the high-temperature pressure and temperature compoundedsensor with strong vibration resistance and large acceleration resistance. The method solves the problem that the high reliability can not be met when the pressure and the temperature are measured ata same point in the prior art. The high-temperature pressure and temperature compounded sensor remains the advantages of the existing silicon sapphire force sensor; furthermore, compared with the similar product, the high-temperature pressure and temperature compounded sensor has the advantages of more reasonable manufacturing technology, quick operation, low relative cost, high production efficiency and the like, and obviously improves the high reliability of the measurement under the severe conditions.
Owner:SHENYANG SENSOR TECH INST

Field estimation method and simulation estimation method for flatness and comfort of bituminous pavement

InactiveCN104573343AGood choiceReasonable evaluation of comfortSpecial data processing applicationsData informationLongitude
The invention discloses a field estimation method and a simulation estimation method for flatness and comfort of a bituminous pavement. Various data information, such as time, experimental vehicle speed, the acceleration speed data of each test point, longitude and latitude of each test road section, and image data of a test lane, in a test process can be collected in real time by a data collecting instrument adopted by the field estimation method; relatively complete data information facilitates data selection and provides theoretic data basis for subsequent performance change of road. According to the simulation estimation method, a built finished vehicle model is very close to the movement rule of a practical vehicle, so that the movement character under motivation of road roughness can be better simulated; the operation speed of a software model on a computer is 4 to 6 times faster than the actual speed, the roughness of a tested road can be quickly estimated, the estimation method is relatively few in outdoor operation and relatively low in external influence, human and material resources can be effectively saved, the mounting process of a testing apparatus is avoided, and the estimation method is more simple and convenient and shorter in required time.
Owner:CHANGAN UNIV

Electronic silicone oil fan clutch

An electronic silicone oil fan clutch comprises a shell, a front cover, an oil storage cover, a driving shaft plugged in the shell and a driving board arranged on the driving shaft, and is characterized by also comprising a valve ring, a mandril, a resetting member and an electromagnetic valve; the valve ring is fixed on the tail of the mandril, axially penetrates through the hollow driving shaft and moves back and forth; the electromagnetic valve is connected with an engine electronic control unit by a wire bundle, generates magnetic field after powered up to suck the mandril to move forwards to realize control on openness degree of the oil outlet hole by the valve ring. Compared with the prior art, the invention has the advantages that various information is collected by the electronic control unit through preset parameters, according to the magnitude of current transmitted by the electronic control unit, the clutch generates a magnetic field corresponding to the magnitude, so that the mandril drives the valve block to move to realize connection and disconnection of silicone oil between an oil storage cavity and a meshing cavity, thus being capable of notifying in advance, and having the advantages of fast response, little influence by external, diverse control factors and high control preciseness.
Owner:WARNER SHENGLONG NINGBO CO LTD

Method for rapidly identifying black shank resistance of tobaccos

The invention belongs to the field of crop disease resistance identification and especially a method for rapidly identifying the black shank resistance of tobaccos. The method for rapidly identifying the black shank resistance of the tobaccos is capable of effectively overcoming the defects of exiting identification, and comprises the following steps: step 1, culturing tobacco black shank bacteria; step 2, taking tobacco seeds to be tested and sterilizing the surface; and step 3, performing germination rate and morbidity statistics and performing disease resistance evaluation. The method is capable of saving manpower and material resources and also greatly reducing the identification time; the resistance level to the black shank is not limited by the growth seasons; besides, the method is simple in identification operation steps and relatively low in test room requirement conditions; according to the method, the purpose of rapidly identifying the black shank resistance of the tobaccos at low cost and high flux is achieved; the method is suitable for identifying the black shank resistance of a large batch of germplasm materials in tobacco breeding study; and as a result, the anti-disease germplasm resource screening, the resistance hereditary character study and the anti-disease variety breeding and popularization/application can be accelerated.
Owner:TOBACCO RES INST HENAN ACADEMY OF AGRI SCI

Echo-free isolation box for testing of millimeter wave alternating current radiometer

ActiveCN104635217ALow costShort distance in length directionWave based measurement systemsRadiometerEngineering
The invention discloses an echo-free isolation box for testing of a millimeter wave alternating current radiometer. The echo-free isolation box comprises a metal frame and a three-frame inclined angle adjusting frame; the metal frame is a cuboid, wherein an opening is formed in the middle of each of the two opposite surfaces of the cuboid in the length direction, and the three-frame inclined angle adjusting frame and a target simulator are respectively arranged in the two openings; the top surface of the metal frame is provided with an opening which is provided with a shielding door; a wave absorbing material is arranged on the inner side of the metal frame. The echo-free isolation box provides a favorable testing environment for complete machine testing and signal simulation of a projectile-borne millimeter wave alternating current radiometer, also provides a method for measuring an included angle of a terminal sensitive projectile millimeter wave alternating current radiometer, has the advantages of low cost, small size, convenience in use, high performance, good electromagnetic shielding property and the like and is little affected by outside.
Owner:NANJING UNIV OF SCI & TECH

Energy-saving cooling system of wind generating set frequency converter

The invention provides an energy-saving cooling system of a wind generating set frequency converter. The energy-saving cooling system comprises the frequency converter, a pipeline pump, a cooling liquid pipe, a hot liquid divider, a cold liquid divider, a high-level liquid collection box and two sets of radiating pipes, wherein the frequency converter, the pipeline pump and the cooling liquid pipe are located in a tower; the pipeline pump is connected with a heating component in the frequency converter through the cooling liquid pipe; one end of the hot liquid divider is connected with the high-level liquid collection box through the first set of radiating pipes; the other end of the hot liquid divider is connected with the heating component inside the frequency converter through the cooling liquid pipe; one end of the cold liquid divider is connected with the pipeline pump through the cooling liquid pipe; the other end of the cold liquid divider is connected with the high-level liquid collection box through the second set of air cooling radiating pipes; the top face of a cabin on the top of the tower is provided with an exhaust skylight of which an opening is back on to a wind wheel. According to the energy-saving cooling system, natural wind makes full contact with the surfaces of the radiating pipes inside the tower and takes heat energy away, cooling liquid with heat energy of the heating component of the frequency converter inside the radiating pipes is cooled rapidly, the good cooling effect is achieved without an air blower, energy sources are saved greatly, and environment noise of a whole wind power plant is lowered greatly.
Owner:王承辉

Battery pack unit battery voltage detection circuit

The invention discloses a battery pack unit battery voltage detection circuit which comprises a high-voltage analogue switch array. The input end of the high-voltage analogue switch array is connected with the two ends of a unit battery to be detected, and the output end of the high-voltage analogue switch array is connected with a high-common-mode input error amplifier. The high-common-mode input error amplifier is used for converting a high-common-mode battery signal into a differential signal with the low voltage as a reference voltage to perform detection. When the voltage of the unit battery to be detected in the battery pack is detected, a corresponding set of high-voltage switches connected to battery positive and negative plate in the high-voltage analogue switch array are switched on, and a battery voltage signal is directly output to the high-common-mode input error amplifier. When the voltage of the unit battery to be detected in the battery pack is detected, the high-voltage switches connected to the battery positive and negative plate are switched on, and the battery voltage signal is output to the high-common-mode input error amplifier. Compared with a traditional detection circuit, the high-voltage detection circuit saves chip area and meanwhile improves the detection precision.
Owner:中科芯时代科技有限公司

Gate opening detection device

The invention discloses a gate opening detection device. The device consists of a measuring rod, a long-stroke displacement sensor, an anti-sway component and a mounting bracket, wherein the long-stroke displacement sensor is used for detecting the actual position of the measuring rod in an opening or closing process of a gate for acquiring a gate opening electric signal; the long-stroke displacement sensor is arranged on the edges on the two sides of the gate; the measuring rod matched with the long-stroke displacement sensor is arranged inside or outside a water retaining working surface of a gate structure; the mounting frame is fixed on a side wall of a gate wall; and the mounting bracket is connected with the long-stroke displacement sensor through the anti-sway component. The gate opening detection device has less conversion links, little outside influence, high detection accuracy, safety, reliability and low cost, is easy to manufacture, adopts a rigid structure, improves the adaptive capacity to a severe environment, and is convenient to install and maintain due to the adoption of external arrangement.
Owner:长江设计集团有限公司 +1

Quality control method in pot-type fermentation technique process of Pixian broad bean paste

InactiveCN107223872AGood controllability of fermentation conditionsImprove controllabilityFood scienceBiotechnologyAspergillus oryzae
The invention provides a quality control method in a pot-type fermentation technique process of Pixian broad bean paste. The method comprises the following steps: A, preparing broad bean paste fragments: washing, steaming, and cooling by airing broad bean fragments, inoculating the broad bean fragments with aspergillus oryzae powder so as to obtain a broad bean starter materials, sending the starter materials to a fermentation pot, and adding lactobacillus powder and microzyme powder to the pot for fermentation so as to obtain the broad bean paste fragments; B, preparing capsicum blank: crushing capsicums, adding the crushed capsicums to a capsicum blank fermentation pot, and adding lactobacillus powder to the capsicum blank fermentation pot so as to obtain the capsicum blank; and C, feeding the broad bean paste fragments into the capsicum blank fermentation pot, uniformly mixing the broad bean paste with the capsicum blank in a mass proportion of 4:6, adding microzyme powder into the mixture, conducting uniform mixing, and conducting fermentation of 45-75 days so as to obtain the Pixian broad bean paste. For meeting quality requirements, the method improves an aroma and a fresh taste of the product, shortens a manufacturing cycle of the Pixian broad bean paste, and avoids pollution of pathogenic bacteria in the manufacturing process. The manufacturing occupies a small amount of land, and the method is applicable to large-scale industrial production so as to meet market demand quantity of the Pixian broad bean paste.
Owner:SICHUAN GAOFUJI FOOD

Deep-water foundation construction method for large-span continuous beam adjacent to existing railway line

The invention discloses a deep-water foundation construction method for a large-span continuous beam adjacent to an existing railway line. A deep-water foundation for construction comprises an underwater abutment and a plurality of drilled piles, wherein the underwater abutment is positioned on an underwater base rock on one side of the existing operating railway line, and the drilled piles are used for supporting the underwater abutment. The deep-water foundation construction method includes the steps: firstly, excavating an underwater foundation pit mounted at the bottom of a cofferdam by setting up an excavation platform, mounting an impact drill, moving the excavation platform and performing first impact, synchronous slag removal, second impact and synchronous slag removal; secondly, constructing the drilled piles and the underwater abutment by surveying and setting out, lowering a cofferdam, mounting a steel casing, sealing the bottom of the cofferdam, constructing the drilled piles, drawing water in the cofferdam, cutting off the steel casing and constructing the abutment. The steps are simple, the method is reasonable in design, simple and convenient in construction, good in use effect, safe and reliable in construction process and less in external influence, and the deep-water foundation construction process can be simply, conveniently and rapidly finished.
Owner:CHINA RAILWAY 20 BUREAU GRP

Fluorescent microsphere suitable for rapid immunology detection and preparation method thereof

The invention relates to a fluorescent microsphere in the field of biology engineering technology, and especially relates to a fluorescent microsphere suitable for rapid immunology detection and a preparation method thereof. In the first step, polymer particles comprising fluorescence molecules, and an olefin monomer having functional groups that have modification functions, are used as raw materials for the inner core and the outer shell respectively; and polymer microspheres, external surfaces of which have functional groups having modification functions, are prepared through a microemulsion polymerization method. In the second step, according to a ratio of 1% (w / v) to 5% (w / v), the polymer microspheres prepared in the first step are slowly injected into an acetone or dichloromethane solution comprising fluorescence molecules; the polymer microspheres are swelled and the fluorescence molecules penetrate into the polymer microspheres; and then the fluorescent microspheres are prepared after steps of centrifuging to remove supernate, cleaning, adding water and suspending. The preparation method is simple. The product can be used for preparing precise and quantified immune chromatography test strips, and is suitable for detection technology fields of medical diagnosis, biological detection, environmental detection, food safety monitoring, and detection of different-species.
Owner:杭州艾策医疗技术有限公司

Normal pressure micro glow discharge desorption mass spectrum ion source based on magnetic field constraint and mass spectrometer

The invention discloses a normal pressure micro glow discharge desorption mass spectrum ion source based on magnetic field constraint. The normal pressure micro glow discharge desorption mass spectrum ion source based on magnetic field constraint comprises an ion source body used for generating normal pressure micro glow discharge, a Helmholtz coil used for providing a uniform magnetic field for restraining a micro glow discharge plasma and a sample ion, and an annular electrode used for generating a static electric field to assist in focusing charged particles, wherein the ion source body is located in the magnetic field generated by the Helmholtz coil, and ion current generated by the ion source body passes an electric field generated by the annular electrode. The invention further discloses a mass spectrometer adopting the normal pressure micro glow discharge desorption mass spectrum ion source based on magnetic field constraint. The normal pressure micro glow discharge desorption mass spectrum ion source based on magnetic field constraint and the mass spectrometer are low in energy consumption, small and exquisite in appearance, simple in structure and easy and convenient to operate, have little influence on the outside, are high in signal enhancement degree, are free of sample pretreatment, carry out analysis quickly, can reach the purpose of harmless analysis, and are clean and free of pollution.
Owner:SICHUAN UNIV

Low-temperature and low-salt tank type fermenting preparation method of broad bean sauce halves

The invention discloses a low-temperature and low-salt tank type fermenting preparation method of broad bean sauce halves. The method comprises the following steps of A, pretreatment of broad bean halves; B, preparation of a fermenting material of the broad bean halves; C, tank type fermenting of the fermenting material of the broad bean halves: sending the fermenting material of the broad bean halves into a fermenting tank, controlling the water content in the fermenting material of the broad bean halves in the fermenting tank to be smaller than or equal to 50% and the content of edible salt to be 8 to 11%, and fermenting by controlling the temperature to 15 to 20 DEG C; after fermenting for 13 to 15 days, adding lactobacillus powder; after 3 to 4 days, adding saccharomyces rouxii powder and torulopsis powder to continue to ferment; fermenting for 76 to 180 days in total, so as to obtain the broad bean sauce halves. The method has the advantages that the quality requirements are met, the fragrance and delicate flavor of a product are further improved, and the problem of pollution in the preparation process is solved; the particular flavor of the traditional fermented sauce halves is reserved, the land occupation area is small, the method is suitable for large-scale industrialized production, and the market demand amount of Pixian bean halves is met.
Owner:SICHUAN GAOFUJI FOOD

Double-shield position detection device, double-shield position detection method, double-shield guide system and double-shield guide method

The invention discloses a double-shield position detection device. The device comprises a laser, a light sensing target and a controller; the laser is installed on the front end surface of a tight supporting shield; the light sensing target is installed on the rear end surface of a front shield; a shooting device is arranged in the light sensing target; laser light emitted by the laser comes to the light sensing target; and the laser and the shooting device are connected with the controller. According to the double-shield position detection device, the laser is arranged on the front end surface of the tight supporting shield, and the light sensing target is arranged on the rear end surface of the front shield; and when a double-shield TBM is used for curved tunneling, a light spot image isshot and processed through the shooting device arranged in the light sensing target, and a light spot offset of the rear end of the front shield is obtained, so that horizontal and vertical offsets of the front shield are obtained, and the accuracy of data is improved. In addition, the invention further provides a double-shield position detection method adopting the double-shield position detection device, a double-shield guide system and a double-shield guide method adopting the double-shield guide system.
Owner:CHINA RAILWAY CONSTR HEAVY IND

Self-adaptive flexible discharging plasma device

InactiveCN107949137ARealization of surface-bonding discharge treatmentMedium thinPlasma techniqueEngineeringHigh pressure
In a self-adaptive flexible discharging plasma device, a dielectric body A is arranged at an upper part of a base, a lower surface of the dielectric body A has viscosity, a high-voltage electrode is arranged at an upper part of the dielectric body A and is connected with a high-voltage power supply via a wire, a dielectric body B is arranged on an upper surface of the high-voltage electrode, a lower surface of the dielectric body B has viscosity, a photocatalytic material is arranged on an upper surface of the dielectric body B, a dielectric body C is arranged at an upper part of the photocatalytic material, a lower surface of the dielectric body C has viscosity, a ground electrode is arranged on an upper surface of the dielectric body C, and through holes with same diameters are uniformlyformed in the ground electrode. The self-adaptive flexible discharging plasma device can be applicable to an irregularly-shaped processing object, surface contact discharging process is achieved, energy consumption is low, discharging along a surface can be blocked by a medium, the discharging catalytic recombination processing efficiency is improved, the repeated service lifetime of the self-adaptive flexile discharging plasma device is prolonged, and the processing efficiency of the self-adaptive flexile discharging plasma device is improved.
Owner:DALIAN NATIONALITIES UNIVERSITY
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products