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Composite material and preparation method thereof
ActiveCN108079934ALarge specific surface areaIncrease loadOther chemical processesAluminium silicatesCarbon filmMicrosphere
The invention relates to a composite material and a preparation method thereof, and can be widely applied to the fields of batteries, environmental protection, adsorptive dehumidification, air conditioning, refrigeration, heat pumps, pressure-variable separation purification, hydrogen storage production and the like. The composite material comprises a supporting framework material, carbon microspheres and / or a carbon film and a loading material, the loading material comprises salt, an electrode material and a physical adsorbent, the carbon microspheres and / or the carbon film are / is firmly attached to the wall surfaces of pores in the supporting framework material, and the loading material is uniformly distributed inside the carbon microspheres and / or the carbon film, so that direct embedment of the loading material between carbon atoms is achieved, the anti-agglomeration inactivation capacity is obviously enhanced, and the service life is effectively prolonged; the composite material breaks through a limitation of the specific surface area of the original skeleton material, so that the specific surface area of the composite material can be effectively increased under the premise ofincreasing the loading capacity, and the adsorption, reaction or electron migration rate can be increased; the composite material conveniently achieves close contact between the adsorbent and a heat-exchanging wall surface by an extruding, bonding or brazing method, so that the contact heat resistance between the two is effectively reduced.
Owner:SHANDONG UNIV
Industrial-robot-based abrasive belt grinding device for profiles of controllable pitch propeller and manufacturing method of abrasive belt grinding device
The invention discloses an industrial-robot-based abrasive belt grinding device for profiles of a controllable pitch propeller and a manufacturing method of the abrasive belt grinding device and mainly solves the problems caused in numerically-controlled machine tool type manufacturing, such as high cost, instability in machining precision and low efficiency due to manual grinding, occupational hazards of polishing and the like. The device mainly comprises a six-freedom-degree industrial robot, an abrasive belt grinding mechanism and a numerical control rotary table, wherein the abrasive belt grinding mechanism which is arranged in a triangular structure is connected with an end joint of the robot through a flange; a motor achieves high-speed rotation of an abrasive belt driving wheel through a synchronous belt; a pneumatic mode drives a tension wheel to achieve abrasive belt tension; a workblank of the controllable pitch propeller is installed and clamped in the center of the rotary table; and a servo motor drives an output gear of a reduction box to be meshed with a gear ring of a slewing bearing so as to achieve continuous 360-degree rotating and indexing. The abrasive belt grinding device is ingenious in structural design and high in grinding rigidity and universality, reduces the production cost greatly and has excellent practical and promotional values.
Owner:UNIV OF ELECTRONICS SCI & TECH OF CHINA
Detection device for knife point dynamic characteristics of numerical control machine tool and method of detection device
ActiveCN105269404ALow costSimple structureMeasurement/indication equipmentsNumerical controlData information
The invention discloses a detection device for knife point dynamic characteristics of a numerical control machine tool and a method of the detection device. Mainly the problems that detection performance indexes of knife point dynamic characteristics of an existing numerical control machine tool are not comprehensive or accurate, and detection cost of instruments and cutting test pieces is high are solved. The detection device for the knife point dynamic characteristics of the numerical control machine tool comprises a supporting base, a connecting plate and an L-shaped supporting wall plate. The top of the supporting base is provided with displacement sensors in a penetrating manner through holes, wherein the displacement sensors are arranged in the manner that every two displacement sensors are perpendicular to each other; meanwhile, acquired temperature data of main heat sources of the machine tool are integrated so that a main shaft can acquire real-time location and posture information of a point of a knife point in the swinging or rotating process, and correlation calculation of accuracy and generation of compensating data are completed by automatically obtaining fused data information through a data collector and transmitting the fused data information to a computer at high speed to be recorded and analyzed. The detection device is ingenious in structural design, the knife point characteristic testing functions are comprehensive, universality is high, numerical control machining precision testing cost is greatly reduced, and good practical and popularization value is achieved.
Owner:UNIV OF ELECTRONICS SCI & TECH OF CHINA
Gain programmable vision buffer amplifier circuit with SAG compensation
InactiveCN101330278AReduce volumeLow costTelevision system detailsGain controlProgrammable circuitsCapacitance
The invention relates to a programmable gain circuit with SAG compensation for a video frequency buffer amplifier. An operational amplifier U1 of the circuit is connected with the programmable gain circuit with feedback and SAG compensation, wherein, the output end of the operational amplifier U1 is connected with a resistance R4 and a capacitance C4; the resistance R4 is connected with a capacitance C5 of the operational amplifier U1; the capacitance C4 is connected with a resistance R5 and an output resistance R6; the resistance R5 is connected with the capacitance C5 and a resistance R8; and the resistance R8 is connected with an equivalent resistance R7 of the programmable gain circuit. Compared with the circuit of the conventional video frequency buffer amplifier, although a component is added, the volume and the cost are reduced due to the reduced capacity of an output capacitance. The programmable gain circuit has the advantages of simple structure, small volume and cheap circuit, and the circuit device can effectively ensure the transmission quality of video frequency, and the gain can be adjusted according to demands.
Owner:TIANJIN YAAN TECH CO LTD
Personal trainer fitness management system and method based on thermal imager and smart bracelet
ActiveCN108877885AImprove user experienceFlexible and easy wayPhysical therapies and activitiesSensing radiation from moving bodiesTraining planEngineering
The present invention relates to a personal trainer fitness management system and method based on a thermal imager and a smart bracelet. The personal trainer fitness management system comprises: a thermal imager configured to obtain a shell temperature; a smart bracelet configured to obtain a heart rate value of a fitness user; a smart sound configured to obtain the fitness user's voice and personal trainer voice; a camera configured to obtain a face image; a storage; and a controller configured to communicate with the thermal imager, the smart bracelet, the sound box and the storage. The personal trainer fitness management system and method can automatically obtain the current physical state of the user, can determine the user's fatigue grade, can regulate the training plan according to the user's fatigue grade, employ the thermal imager to obtain the fitness user's shell temperature, employ the smart bracelet to obtain the fitness user's heart rate and can determine the fitness user's fatigue grade according to the fitness user's shell temperature and heart rate to further regulate the pre-determined training plan so that the mode is flexible and convenient and the user usage experience is improved with no need for manual participation.
Owner:绍兴东巍体育科技有限公司
Method of preparing multistage silicon nano component
InactiveCN1919720ARealize preparation and processingHigh resolutionNanostructure manufactureSemiconductor/solid-state device manufacturingImage resolutionScanning electron microscope
The invention discloses a preparing method of multi-grade silicon nanometer tool, which comprises the following steps: 1) proceeding scanning probe oxidization for Si-H surface of silica base through scanning probe microscope, obtaining nanometer oxide pattern, 2) placing the silica in the each-direction unlike erosion liquid to react, obtaining the product.
Owner:PEKING UNIV
Finger vein information security management platform
ActiveCN104394173AAvoid inconvenienceEnhanced authenticationTransmissionSubcutaneous biometric featuresInformation security managementLocal memories
A finger vein information security management platform comprises a finger vein intelligent terminal, a communication network, a server, a client access port and an identity authentication terminal, wherein the finger vein intelligent terminal is connected with the server through the communication network; the client access port is connected with the server through the communication network; the identity authentication terminal is connected with the server through the communication network; the server is a cloud server; the finger vein intelligent terminal comprises a finger vein recognizing device and a shell; the finger vein recognizing device comprises a control main board; the control main board is connected with a finger vein collector, a voice player, an audio collector, a video collector, a capacitive touch screen, a wireless communication module, an LED display lamp and an RFID (radio frequency identification device) reader-writer; a local memory module and an alarm card are arranged on the control main board; the alarm card is connected with the voice player. The finger vein information security management platform has the advantages of high security and good convenience and quickness.
Owner:宁波锐智汇峰智能科技有限公司
Universal Adapter For Exercising Sticks
InactiveUS20080064574A1Flexible and easy wayReduce manufacturing costSpace saving gamesMovement coordination devicesEffective lengthEngineering
The present invention relates to a universal adapter for exercising sticks comprising a mounting means for stably and detachably securing at least an exercising stick in place, such that said adapter functions and forms as an extension of said stick when in use. The mounting means preferably comprises of an elongated member into which a stick-holding means is slidably, tensionally and adjustably mounted, such that said mounting means is capable of providing a varying resistive force against the pushing action of a user when in use, and an extension for increasing the stick's effective length, especially when used in combination and to complement a stationary exercising device such as, among others, a stepper, twister, treadmill, stationary bike, stair climber and combination thereof. This invention is useful to a person who is in an actual or simulative action of stepping, climbing, walking, skiing, or similar actions serving as an aid, balancer, stabilizer, or an exerciser especially for the arms and upper body.
Owner:NARDONE MOAMAR
Double-grating spectrometer system for distinguishing N2 molecule rotation-vibration Raman spectrum
ActiveCN105784116AAchieve recordFlexible and easy wayRaman/scattering spectroscopyRadiation pyrometryFrequency spectrumSpectrograph
The present invention discloses a double-grating spectrometer system for distinguishing a N2 molecule rotation-vibration Raman spectrum. The double-grating spectrometer system comprises a signal feeding unit, an optical dispersion unit and a signal detection unit. The signal feed unit employs cluster fibers to feed signal light in the optical dispersion unit; the optical dispersion unit includes two groups of single-grating dispersion systems with cascade quasi-Littrow structure layout; and the signal detection unit is configured to distinguish and record spectrum signals after dispersion in the pass band range. Under the ultraviolet laser radiation with wavelength of 354.8nm, the Stokes rotation-vibration Raman spectrum center generated by N2 molecules has a wavelength of 386.8nm, and each spectral line of the O branch spectrum and the S branch spectrum symmetrically distributed at two sides are arranged at regular intervals on the frequency spectrum. The double-grating spectrometer system for distinguishing a N2 molecule rotation-vibration Raman spectrum is able to extract signals of each branch spectral line of the O branch spectrum and the S of the N2 molecule rotation-vibration Raman spectrum, realize the distinguishing and detection of the N2 molecule rotation-vibration Raman spectrum and generates great inhibition of optical signals closed to 354.8nm.
Owner:WUHAN UNIV
Air conditioner control method and system based on NFC
PendingCN113686001AAvoid poor contactImprove control accuracy and efficiencyMechanical apparatusSpace heating and ventilation safety systemsRF moduleSerial port
The invention provides an air conditioner control method and system based on NFC. The air conditioner control system comprises an air conditioner and a control device operated by a user to control operation of the air conditioner, the air conditioner is provided with an NFC radio frequency module and an MCU control module, and the control device is provided with an NFC label module used corresponding to the NFC radio frequency module; the NFC label module responds to user selection operation to determine a first control instruction used for controlling the air conditioner to enter a target running state; when the control device is close to the air conditioner, the NFC radio frequency module obtains the first control instruction through an active mode and sends the first control instruction to the MCU control module through serial port communication; and the MCU control module analyzes the first control instruction and instructs an internal control module of the air conditioner to execute the instruction content of the first control instruction obtained through analysis according to protocol agreement, so that the air conditioner enters a target running state. Therefore, the operation state of the air conditioner is controlled in a more flexible and convenient mode, and the control accuracy and efficiency of the air conditioner are improved.
Owner:SICHUAN HONGMEI INTELLIGENT TECH CO LTD
Tour verification test system for power transmission and transformation condition based maintenance test device
ActiveCN103135084AFlexible and convenientSave inspection costCurrent/voltage measurementData processingGeneral purpose
A tour verification test system for a power transmission and transformation condition based maintenance test device is composed of an industrial control computer, a test standard device, a data acquisition module and a data processing module. The test standard device is connected with the industrial control computer through a controller area network (CAN) bus, and a data acquisition card, a digital multimeter and a manual input unit of the data acquisition module are respectively connected with the test standard device. The data processing module comprises a PCI, a general purpose interface bus (GPIB) interface and a universal serial bus (USB) interface. A data processing template base and a certificate template base are respectively connected with a data processor. The data acquisition card, the digital multimeter and the manual input unit are respectively connected with the PCI, the GPIB interface and the USB interface, and the data processor is connected with the industrial control computer. The tour verification test system for the power transmission and transformation condition based maintenance test device has the advantages of being high in reliability, stability and integration density, convenient to use on site and the like, and can be used for on-site verification tests of the transmission condition based maintenance test device for a long time in an non-interruption mode.
Owner:STATE GRID SICHUAN ELECTRIC POWER CORP ELECTRIC POWER RES INST +6
a resolution n 2 Double Grating Spectrometer System for Molecular Vibration-rotational Raman Spectroscopy
ActiveCN105784116BAchieve recordFlexible and easy wayRaman/scattering spectroscopyRadiation pyrometryFrequency spectrumSpectrograph
Owner:WUHAN UNIV
Heat radiation method for circulation electrical cabinet
InactiveCN110247322AAchieve modularityMiniaturizationSubstation/switching arrangement cooling/ventilationEvaporationEngineering
The invention discloses a heat radiation method for a circulation electrical cabinet. More than one heat pipe (1) are connected with the circulation electrical cabinet (2), an evaporation section (3) of the heat pipe (1) extends into an inner circulation chamber (6) of an electric cabinet in which a heat radiation component (5) is mounted, and is connected with the heat radiation component (5), a condensation section (4) of the heat pipe (1) is located outside the inner circulation chamber (6) of the electric cabinet, the evaporation section (3) of the heat pipe (1) is used for collecting heat generated through operation of the heat radiation component (5) and transferring the collected heat to the condensation section (4) outside the circulation chamber in the circulation electrical cabinet (2), and the heat is dissipated from the condensation section (4) of the heat pipe (1) to the atmosphere outside the circulation cabinet (2). The heat radiation method is advantaged in that a heat radiation terminal is separated with an internal circulation back board body, influence of heat radiation on the internal circulation chamber environment is reduced, and stability of operation of a thermal device is improved.
Owner:NANJING ESTUN AUTOMATION CO LTD
Front wall heating surface structure of CDQ (Coke Dry Quenching) waste heat boiler
InactiveCN103307590AIncrease heat absorptionImprove water cycle safetyBoiler water tubesAbsorption capacityWater circulation
The invention discloses a front wall heating surface structure of a CDQ (Coke Dry Quenching) waste heat boiler. In order to solve the problem of water circulation faults of a conventional water-cooled wall of a CDQ waste heat boiler, the front wall heating surface structure of the CDQ waste heat boiler comprises a water-cooled wall section and a lateral washing section; a pipe at the water-cooled wall section extends to the interior of a gas duct at the tail part of a waste heat boiler to form the lateral washing section; the axial line of a pipe at the lateral washing section forms an inclined angle of not larger than 30 degrees with the horizontal plane; and one end of the pipe at the lateral washing section is communicated with the pipe at the water-cooled section, and the other end is fixed on a lower interconnecting box close to a front wall or a rear wall. The pipe on the water-cooled wall of the front wall of the CDQ waste heat boiler extends to the interior of the gas duct at the tail part of the waste heat boiler to form the lateral washing section, so that the heat absorption capacity of the front wall heating surface is increased, and the water circulation safety of the front wall heating surface is improved.
Owner:CHANGSHA BOILER PLANT
Multifunctional intelligent control LED (Light-Emitting Diode) lamp
InactiveCN102791064AGuaranteed recyclingFlexible and easy wayElectric light circuit arrangementEnergy saving control techniquesElectricityEngineering
The invention discloses a multifunctional intelligent control LED (Light-Emitting Diode) lamp, belonging of the technical field of an LED lamp. The technical essentials are as follows: the multifunctional intelligent control LED lamp comprises a shell, wherein the shell is internally provided with a control module and a power supply module; the control module is electrically connected with the power supply module; the power supply module is electrically connected with an external electric supply; the upper part of the shell is connected with an aluminum alloy heat radiation body and the aluminum alloy heat radiation body is internally provided with an insulating base platform; the aluminum alloy heat radiation body is provided with an LED lamp plate and the LED lamp plate is electrically connected with the control module; the LED lamp plate is provided with a wireless signal receiver; and the wireless signal receiver is electrically connected with the control module. The invention aims to provide the multifunctional intelligent control LED lamp which has a simple structure, is convenient to use, and can be controlled to be switched-on / off through a plurality of manners; and the multifunctional intelligent control LED lamp can be used for indoor and outdoor illumination.
Owner:MEIZHOU JIANGNAN ELECTRICAL APPLIANCE
Gain programmable video buffer amplifier circuit with sag compensation
InactiveCN101330278BReduce volumeLow costTelevision system detailsGain controlCapacitanceAudio power amplifier
The present invention relates to a programmable gain video buffer amplifier circuit with SAG compensation. The operational amplifier U1 of the circuit is connected to a programmable gain circuit with feedback and SAG compensation, wherein the output terminal of the operational amplifier U1 is connected to a resistor R4 and a capacitor C4. The resistor R4 is connected to the capacitor C5 of the operational amplifier U1, the capacitor C4 is connected to the resistor R5 and the output resistor R6, the resistor R5 is connected to the capacitor C5 and the resistor R8, and the resistor R8 is connected to the equivalent resistor R7 of the gain programmable circuit. Compared with the conventional video buffer amplifier circuit, although the present invention has increased components and parts, the volume and cost of the output capacitor are reduced due to the capacity reduction, the overall circuit has the advantages of simple structure, small volume and low cost, and the circuit device It can effectively guarantee the quality of video transmission, and the gain can be adjusted as needed.
Owner:TIANJIN YAAN TECH CO LTD
A personal training fitness management system and method based on a thermal imager and a smart bracelet
ActiveCN108877885BImprove user experienceFlexible and easy wayPhysical therapies and activitiesSensing radiation from moving bodiesTraining planSimulation
Owner:绍兴东巍体育科技有限公司
A kind of automatic reset device of sewing machine bottom thread detection sensor and sewing machine
ActiveCN107345344BGuaranteed accuracyImprove accuracyBobbin-winding devicesControl engineeringElectrical and Electronics engineering
The invention provides an automatic reset device of a baseline detection sensor of a sewing machine and the sewing machine, belongs to the technical field of mechanical sewing machines, and aims at solving the problem that a rotating hook is inconvenient to change due to the fact that the space between a sensor and the rotating hook is small in an existing baseline detection device. The automatic reset device of the baseline detection sensor of the sewing machine comprises a sensor fixing frame, a sensor arranged on the sensor fixing frame, and a reset mechanism, wherein the reset mechanism is capable of making the sensor in a detection state or a hook changing state; the detection state is that the sensor is close to and opposite to the rotating hook; and the hook changing state is that the sensor and the sensor fixing frame are far away from the rotating hook for a period of time to make space for changing the hook. The automatic reset device of the baseline detection sensor of the sewing machine has the advantages that the hook is convenient to change and the baseline allowance detection accuracy is high.
Owner:JACK SEWING MASCH CO LTD
Automatic reset device of baseline detection sensor of sewing machine and sewing machine
ActiveCN107345344AGuaranteed accuracyImprove accuracyBobbin-winding devicesEngineeringSewing machine
The invention provides an automatic reset device of a baseline detection sensor of a sewing machine and the sewing machine, belongs to the technical field of mechanical sewing machines, and aims at solving the problem that a rotating hook is inconvenient to change due to the fact that the space between a sensor and the rotating hook is small in an existing baseline detection device. The automatic reset device of the baseline detection sensor of the sewing machine comprises a sensor fixing frame, a sensor arranged on the sensor fixing frame, and a reset mechanism, wherein the reset mechanism is capable of making the sensor in a detection state or a hook changing state; the detection state is that the sensor is close to and opposite to the rotating hook; and the hook changing state is that the sensor and the sensor fixing frame are far away from the rotating hook for a period of time to make space for changing the hook. The automatic reset device of the baseline detection sensor of the sewing machine has the advantages that the hook is convenient to change and the baseline allowance detection accuracy is high.
Owner:JACK SEWING MASCH CO LTD
A kind of composite material and preparation method thereof
ActiveCN108079934BLarge specific surface areaIncrease loadOther chemical processesAluminium silicatesCarbon filmMicrosphere
The invention relates to a composite material and a preparation method thereof, which can be widely used in fields such as batteries, environmental protection, adsorption dehumidification, air conditioning, refrigeration, heat pumps, pressure-changing separation and purification, and hydrogen storage manufacturing. The composite material is composed of a supporting framework material, carbon microspheres and / or carbon membranes and load materials. The loading materials include salts, electrode materials and physical adsorbents. The carbon microspheres and / or carbon membranes are firmly attached to the pore walls of the supporting framework materials. The material is evenly distributed in the carbon microspheres and / or carbon film, which realizes the direct embedding of the loading material between the carbon atoms, the anti-agglomeration and deactivation ability is significantly enhanced, and the service life is effectively improved; the composite material breaks the ratio of the original skeleton material The surface area limitation can effectively increase the specific surface area of the composite material under the premise of increasing the load capacity, and strengthen the adsorption, reaction or electron transfer rate; the composite material is convenient to achieve the adsorption between the adsorbent and the heat exchange wall by extrusion, bonding or brazing. The close contact can effectively reduce the contact thermal resistance between the two.
Owner:SHANDONG UNIV
Method of preparing multistage silicon nano component
InactiveCN100572261CRealize preparation and processingHigh resolutionNanostructure manufactureSemiconductor/solid-state device manufacturingScanning electron microscopeSilicon oxide
The invention discloses a method for preparing a multilevel silicon nanometer device. The method comprises at least one cycle of the following steps: 1) using a scanning probe microscope to carry out scanning probe oxidation on the Si-H surface to be processed on the silicon substrate to obtain a nanoscale oxide pattern; 2) performing step 1) to obtain The silicon chip with the oxide pattern is placed in an anisotropic etching solution for reaction to obtain the required multi-level silicon nanometer element. The method for preparing multilevel silicon nano-devices of the present invention combines the advantages of high resolution and flexible operation of the scanning probe microscope and the relatively mature chemical wet etching technology (anisotropic wet etching technology) in the microelectronics industry , to achieve the preparation and processing of multi-level nanostructures. The method has high resolution, strong controllability, low cost, and simple operation, which provides a flexible and convenient way for the processing and preparation of multilevel nano-devices, and has broad application prospects in the field of nano-devices.
Owner:PEKING UNIV
A dual-grating spectrometer system for simultaneous detection of triple-phase water raman spectrum signals
ActiveCN105928618BFlexible and easy wayFlexible and convenient accessRadiation pyrometrySpectrum generation using diffraction elementsLinear dispersionSignal light
The invention discloses a double-grating spectrometer system capable of detecting three-phase-state water Raman spectral signals simultaneously. The system comprises a signal feed-in unit, an optical dispersion unit and a signal detection unit. The signal feed-in unit uses a fiber in the core diameter of 0.6mm and numerical aperture of 0.12 to feed conducted signal light into the optical dispersion unit; the optical dispersion unit comprises two cascaded grating dispersion systems of quasi-Littrow structural layout, can transmit and disperse passband signal light in the range 393.0-424.0nm in the focal plane efficiently in the linear dispersion rate of 1.0mm nm <-1>, and generates inhibition superior to 6 magnitude orders for outband light near 354.8nm; and the signal detection unit can distinguish and record the passabnd signal light after dispersion in the spectral precision of 0.8nm. In 354.8nm UV laser radiation, vibration-rotation Raman spectral regions of gas-sate, liquid-state and solid-state water correspond to the ranges of 395-409nm, 396-410nm and 401-418nm respectively; the passband spectral range covers the vibration-rotation Raman spectral regions of the three-phase-state water, the three-phase-state water Raman spectral signals are detected simultaneously, and substantial inhibition is generated for optical signals near 354.8nm.
Owner:WUHAN UNIV
An arc surface center measuring instrument and center measuring method
ActiveCN105115379BSimple structureEasy to carryMechanical measuring arrangementsMeasuring instrumentPetroleum engineering
The invention relates to an arc surface center measuring instrument and a center measuring method. At present, there is no measuring instrument that can quickly obtain the center position of the arc surface. The arc surface center measuring instrument of the present invention is characterized in that it includes a direction indicator plate, two legs of equal length, a marking pen, and a central shaft sleeve for fitting the marking pen, and is used to clamp the two legs to keep the two legs. Elastic clips with legs tangent to the measured arc surface at the same time, central shaft card slot, locking bolts for axial positioning of the marker pen set in the central shaft sleeve, and for connecting the direction indicator wheel, The connecting bolts of the two legs, the slot of the central axis and the central axis sleeve. The center measurement method of the present invention is characterized in that: the two legs are simultaneously tangent to the arc surface of the measured tube, and the marking pen is inclined to one side of the arc surface center measuring instrument for marking, and the arc in this direction can be found. The center point of the face. The method of measuring the center line and center point of the arc surface of the present invention is flexible, simple and efficient.
Owner:HUADIAN ELECTRIC POWER SCI INST CO LTD
Finger vein information security management platform
ActiveCN104394173BAvoid inconvenienceEnhanced authenticationTransmissionSubcutaneous biometric featuresVeinLED display
A finger vein information security management platform, comprising a finger vein smart terminal, a communication network, a server, a client access terminal, and an identity authentication terminal; the finger vein smart terminal is connected to a server through a communication network, and the client access terminal and the server are connected through connected to a communication network; the identity authentication terminal is connected to a server through a communication network; the server is a cloud server; the finger vein smart terminal includes a finger vein recognition device and a shell; the finger vein recognition device includes a control board, and the control The main board is connected to the finger vein collector, voice player, audio collector, video collector, capacitive touch screen, wireless communication module, LED display light and RFID reader; the control board is provided with a local storage module and an alarm card, so The above alarm card is connected with the voice player. The system has the advantages of high safety, convenience and quickness.
Owner:宁波锐智汇峰智能科技有限公司
A method for making microfluidic chip molds by using numerical control engraving technology combined with paraffin substrates
ActiveCN109016274BReduce hardnessNo breakageCeramic shaping apparatusNumerical controlMachined surface
The invention discloses a method for manufacturing a micro-fluidic chip die through combination of a numerical control carving technology and a paraffin substrate, and belongs to the field of micromachining. According to the method, a micro-fluidic chip pattern drawn through drawing software is etched on the paraffin substrate, and a paraffin female die is formed; the surface coating technology isutilized for improving the smoothness of the surface of the paraffin female die; and finally, the micro-fluidic chip die is manufactured through a pouring die inversing method. According to the method, on one hand, the characteristic that the hardness of paraffin is low is utilized, the phenomenon of cutter fracture is not likely to happen when an ultrafine-diameter cutter is used for machining amicro pipeline or micro cavity structure, and accordingly the micro-fluidic chip die with the finer structure can be prepared; and on the other hand, operation is simple, only the steps of AutoCAD chip design, carving machine machining, surface coating, pouring die reversing and the like are needed, the micro-fluidic chip die machining time can be greatly shortened, and the micro-fluidic chip diemachining cost can be greatly reduced. The method for manufacturing the micro-fluidic chip die is suitable for small-batch production or laboratory level machining of micro-fluidic chips.
Owner:CHONGQING UNIV
A circuit test system for power transmission and transformation state maintenance test equipment
ActiveCN103135084BSave inspection costMeet the needs of useCurrent/voltage measurementElectric power transmissionData acquisition
Owner:STATE GRID SICHUAN ELECTRIC POWER CORP ELECTRIC POWER RES INST +6
Front wall heating surface structure of CDQ (Coke Dry Quenching) waste heat boiler
InactiveCN103307590BAvoid scour wearIncrease heat absorptionBoiler water tubesWater circulationQuenching
The invention discloses a front wall heating surface structure of a CDQ (Coke Dry Quenching) waste heat boiler. In order to solve the problem of water circulation faults of a conventional water-cooled wall of a CDQ waste heat boiler, the front wall heating surface structure of the CDQ waste heat boiler comprises a water-cooled wall section and a lateral washing section; a pipe at the water-cooled wall section extends to the interior of a gas duct at the tail part of a waste heat boiler to form the lateral washing section; the axial line of a pipe at the lateral washing section forms an inclined angle of not larger than 30 degrees with the horizontal plane; and one end of the pipe at the lateral washing section is communicated with the pipe at the water-cooled section, and the other end is fixed on a lower interconnecting box close to a front wall or a rear wall. The pipe on the water-cooled wall of the front wall of the CDQ waste heat boiler extends to the interior of the gas duct at the tail part of the waste heat boiler to form the lateral washing section, so that the heat absorption capacity of the front wall heating surface is increased, and the water circulation safety of the front wall heating surface is improved.
Owner:CHANGSHA BOILER PLANT
Abrasive belt grinding device and processing method for controllable pitch propeller profile based on industrial robot
The invention discloses a controllable pitch propeller surface abrasive belt grinding device and a processing method thereof based on an industrial robot, which mainly solves the high cost of CNC machine tool processing, unstable processing accuracy and low efficiency caused by manual grinding, and Grind issues such as occupational hazards. The device mainly consists of a six-degree-of-freedom joint industrial robot, an abrasive belt grinding mechanism device, and a rotary table. The joints at the end of the robot are connected to the abrasive belt grinding mechanism device arranged in a triangular structure through a flange, and the motor drives the abrasive belt through a synchronous belt. The high-speed rotation of the wheel, pneumatically pushes the tensioner wheel to realize the tightening of the abrasive belt, and the blank workpiece of the adjustable pitch propeller is installed and clamped in the center of the rotary table, and the output gear of the reduction box is driven by the servo motor to mesh with the driving ring gear of the slewing ring to realize continuous 360° ° Rotation and indexing. The invention has ingenious structural design, high grinding rigidity, strong versatility, greatly reduces production cost, and has good practical and popularization value.
Owner:UNIV OF ELECTRONICS SCI & TECH OF CHINA
Device and method for detecting dynamic characteristic accuracy of CNC machine tool tip
ActiveCN105269404BLow costSimple structureMeasurement/indication equipmentsNumerical controlData information
The invention discloses a CNC machine tool tip dynamic characteristic accuracy detection device and a method thereof, which mainly solve the problems of incomplete and inaccurate detection performance indicators of the existing CNC machine tool tip dynamic characteristic, high detection cost of instruments and cutting specimens, and the like. The CNC machine tool tool tip dynamic characteristic accuracy detection device includes a support, a connecting plate and an L-shaped support wall plate. Displacement sensors arranged vertically in pairs are installed on the top of the support through holes in a penetrating manner. At the same time, through the main heat sources of the integrated machine tool Acquisition of temperature data at the center, realizing real-time information acquisition of the position and orientation of the tool tip point during the spindle swing or rotation movement, automatic acquisition of fused data information through the data collector, high-speed transmission into the computer for recording and analysis, and completion of accuracy-related calculations and compensation data generate. The invention has ingenious structural design, comprehensive tool tip characteristic testing functions, strong versatility, greatly reduces the cost of testing the precision of numerical control machining, and has good practical and popularization value.
Owner:UNIV OF ELECTRONICS SCI & TECH OF CHINA
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