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30results about How to "Avoid collection effects" patented technology
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Testing device of machine tool spindle dynamics of numerically-controlled machine tool in cutting state
ActiveCN103231279ARealize analysisAvoid Signal Acquisition EffectsMeasurement/indication equipmentsNumerical controlEngineering
The invention discloses a testing device of tool spindle dynamics of a numerically-controlled machine tool in a cutting state and belongs to the mechanical vibration and testing field. The testing device of the tool spindle dynamics of the numerically-controlled machine tool in the cutting state comprises the numerically-controlled machine tool, a signal collecting system and an analyzing system. According to the testing device of the tool spindle dynamics of the numerically-controlled machine tool in the cutting state, actual vibration of a machine tool spindle cutting tool is measured through an electrical vortex sensor, an axel center track of the machine tool spindle is drew, cutting stimulus signals the cutting tool actually bear are measured through a cutting force tester, and the test and the analysis of dynamic characteristics of the cutting tool in the actual cutting state are achieved in combination with the measured actual vibration of the cutting tool. The testing device of the tool spindle dynamics of the numerically-controlled machine tool in the cutting state has the advantages of solving the problem that the stability of the machine tool system in the actual cutting state cannot be measured and achieving real-time measure of the numerically-controlled machine tool in the actual cutting state.
Owner:BEIJING UNIV OF TECH
Collecting device of fog and automatic-sorting aerosol and application method thereof
InactiveCN101769831AImprove collection efficiencyAvoid collection effectsWithdrawing sample devicesInlet channelEvaporation
The invention discloses a collecting device of fog and automatic-sorting aerosol and application method thereof, which relates to technical field of integrated separate collection for collecting information of ground wet deposition and aerosol for meteorological detection. In the invention, both ends of an air inlet channel are repetitively connected with an air inlet, a fog absorbing network, the lower end of the fog absorbing network is connected with a fog gathering container, the lower end of the fog gathering container is connected with a fog meter which is provided with a sensor, one side of the fog absorbing network far away from the air inlet channel is provided with an air blower; a first aerosol collector, a second aerosol collector are respectively connected with an aerosol air channel, and an aerosol air channel controller is provided with a regulator; the data output end of the sensor is connected with a first data input end of a micro data processor, and a second data output end of the micro data processor is connected with the data input end of the regulator. The invention realizes purposes that the collecting efficiency is high, the affect of vertical rainfall and water evaporation under detection field environment on the fog collection can be effectively avoided, and the cost is reduced.
Owner:江苏江电电力设备有限公司
Fog collector and its application method
InactiveCN101000289AImprove collection efficiencyRemove collection effectsWithdrawing sample devicesEvaporationEngineering
The invention relates to fog gatherer to collect fog sample at outdoor. It is made up of rain water blocking cover, double layer mist water absorbing net, compiling utensil, connecting handle, arm. It has high mist water collecting efficiency, can effectively remove the influence for the collecting from vertical precipitation and moisture evaporation at outdoor, and supply simple and effective experimental installation for developing fog scientific research in the future.
Owner:NANJING UNIV
Flat enameled electromagnetic wire surface defect detection method based on deep learning
ActiveCN111398291AAvoid collection effectsReserve region of interestImage enhancementImage analysisMachine visionEngineering
The invention discloses a flat enameled electromagnetic wire surface defect machine vision detection method based on deep learning. The method comprises the following steps: 1, acquiring flat enameledelectromagnetic wire images: establishing a dark field environment, and acquiring a flat enameled electromagnetic wire image by using an area light source and a camera which are installed in a specified mode; 2, preprocessing the flat enameled electromagnetic wire image: segmenting an image of an area where the enameled wire is located by using a clustering algorithm; 3, identifying flaws of theflat enameled electromagnetic wire: training a convolutional neural network by using label data, and training a model to be called by a detection system to realize surface defect detection of the flatenameled electromagnetic wire. According to the method, the flat enameled electromagnetic wire image is acquired and preprocessed through a machine vision method, and the surface defects of the flatenameled electromagnetic wire are accurately identified through the convolutional neural network, so that the manpower input can be reduced, the detection cost is reduced, and the identification accuracy is improved.
Owner:南通远景电工器材有限公司
Gas drilling shaft bottom near-bit continuous impact focus nipple
The invention relates to a gas drilling shaft bottom near-bit continuous impact focus nipple, comprising a nipple body, a cylinder body, a piston (3) and a gas distribution device, wherein the cylinder body is arranged in a shell (1), the piston (3) is arranged in the cylinder body, a lower gas inlet passage (8) is formed between the cylinder body and the shell (1), a lower gas chamber (2) is formed between the lower end of the piston (3) and the inner wall of the shell (1), the lower gas inlet passage (8) is communicated with the lower gas chamber (2), an upper gas inlet passage (9) is formed at the bottom (7) of the cylinder body, an upper gas chamber (6) is formed between the upper end of the piston (3) and the cylinder body, the upper gas inlet passage (9) is communicated with the upper gas chamber (6), and the gas distribution device is arranged at the upper part of the cylinder body. According to the focus nipple, a focus in seismic exploration is applied to a shaft bottom near a bit, a focus linear (Chirp) scanning technology can be combined with a Mini-SOSIE technology, and the focus excites the ground to generate linear scanning pulse signals through a pulse coding technology, so that the excitation quality of seismic wave is improved.
Owner:SOUTHWEST PETROLEUM UNIV
Under-screen fingerprint collection method and device, electronic equipment and storage medium
PendingCN110945526AQuality improvementAvoid collection effectsPrint image acquisitionAmbilightExposure
The invention provides an under-screen fingerprint collection method and device, electronic equipment and a storage medium. The under-screen fingerprint collection method comprises the steps: collecting a first fingerprint image of a user under the irradiation of a light source; determining the target exposure time of the image sensor according to the pixel value of the first fingerprint image; controlling the exposure time of the image sensor to be the target exposure time; and under the target exposure time, collecting a second fingerprint image of the user. According to the embodiment of the invention, the exposure time of the image sensor is adjusted according to the current environment, and the fingerprint image of the user is continuously acquired at the target exposure time, so thatthe quality of the fingerprint image can be effectively improved, and the influence of ambient light on fingerprint acquisition under a screen is avoided.
Owner:SHENZHEN GOODIX TECH CO LTD
Double-gantry surgical robot used for joint replacement based on bone surface coordinate mapping
PendingCN109998686AImprove carrying capacityEasy to fixSurgical manipulatorsSurgical robotsLaser rangingSurgical robot
The invention relates to a double-gantry surgical robot used for joint replacement based on bone surface coordinate mapping. The robot includes an operation table, and primary and auxiliary gantry mechanical arms and a laser ranging sensor are installed on the operation table. At the same time, a joint fixing device is installed on a cross beam corresponding to the auxiliary gantry mechanical arm.The joint fixing device includes a fixation plate, a gradienter is installed on the fixation plate, and the fixation plate is connected with a primary coordinate collection needle and a secondary coordinate collection needle at the same time. Therefore, high-precision collaborative operation is achieved through the primary coordinate collection needle and the secondary coordinate collection needle which are mutually independent, a bone surface coordinate can be 'mapped' to the outside of the body, the influence of periosteum coverage, bleeding, body fluid and the like on bone coordinate pointacquisition during joint replacement is avoided, more accurate position reference is provided, and high-precision joint replacement is completed.
Owner:SUZHOU DIANHE MEDICAL TECH
Pulse signal synchronization integration measurement apparatus and method resisting random noise
InactiveCN106053961AStable chargingReduce the amount requiredPulse characteristics measurementsVoltage amplitudeCapacitance
The invention brings forward a pulse signal synchronization integration measurement apparatus and method resisting random noise, for realizing pulse signal intensity measurement which has a synchronization feature and may has a high pulse pile-up probability. The content mainly comprises a fixed charge reverse charging integration circuit and a synchronization gated data acquisition circuit, and a measurement method for reducing and deducting random noise pulses. The fixed charge reverse charging integration circuit comprises an integration circuit and a fixed charge reverse charging circuit, wherein the integration circuit is used for charging a capacitor and converting intensity information of detected pulse signals into voltage amplitude information; and the fixed charge reserve charging circuit triggered by level is used for limiting output voltages of the integration circuit within a linear scope, and reverse charging pulses can be delayed so as to avoid influences on data acquisition. In terms of the measurement method, the intensity of random noise signals is measured by use of a time-sharing measurement method, the random noise pulses are further deducted in a data processing process.
Owner:NORTHWEST INST OF NUCLEAR TECH
Battery testing fixture
PendingCN107515318AClosely connectedAvoid collection effectsMeasurement instrument housingElectrical batteryStructural engineering
Disclosed is a battery testing fixture. The battery testing fixture comprises a bottom plate, a stand column fixed onto the bottom plate, and a fixing assembly, wherein the fixing assembly can move up and down relative to the stand column and be fixed onto the stand column through a connector for pressing a battery on the bottom plate and being electrically connected with the battery. By means of the fixing assembly which can slide relative to the stand column and can be fixed onto the stand column, the battery testing fixture is applicable to batteries in various sizes, thereby being flexible in application.
Owner:BEIJING PRIDE NEW ENERGY BATTERY
System of recognizing quality of amphisarca in high speed based on machine vision
InactiveCN1203304CHigh speed acquisitionAvoid collection effectsMaterial analysis by optical meansSortingCcd cameraNon invasive
Owner:SHANGHAI JIAOTONG UNIV
A collection device for mist water and automatic classification aerosol and its application method
InactiveCN101769831BImprove collection efficiencyAvoid collection effectsWithdrawing sample devicesEvaporationEngineering
The invention discloses a collection device of fog water and automatic classification aerosol and its application method, which relates to the technical field of integrated classification collection of ground wet deposition and aerosol information collected for meteorological detection. The two ends of the air inlet channel of the present invention are respectively connected to the air inlet and the mist absorbing net, the lower end of the mist absorbing net is connected to the mist collecting dish, the lower end of the mist collecting dish is connected to the mist meter, and the mist meter is provided with a sensor , a fan is set on the side of the mist absorbing net away from the air intake channel; the first aerosol sampler and the second aerosol sampler are respectively connected to the aerosol gas circuit controller, and a regulator is set on the aerosol gas circuit controller; the sensor The data output end of the micro data processor is connected with the first data input end of the micro data processor, and the second data output end of the micro data processor is connected with the data input end of the controller. The invention realizes the purpose of high collection efficiency, can effectively avoid the influence of vertical precipitation and water evaporation on the mist collection in the environment of the observation field, and reduce the cost.
Owner:江苏江电电力设备有限公司
Device and method for identifying surface defects of metal wire
PendingCN111855678AAvoid collection effectsAcquisition stableOptically investigating flaws/contaminationRegion of interestEngineering
The invention discloses a device and a method for identifying surface defects of a metal wire. The device comprises a cavity and a labeling unit, wherein the cavity is connected with a control terminal, and the two ends of the cavity are closed. A group of image acquisition units are arranged on the inner wall of the cavity at intervals, a first through hole is formed in one end face of the cavity, a second through hole is formed in the other end face of the cavity, a metal wire enters the cavity through the first through hole and penetrates out of the cavity through the second through hole, the labeling unit is located near the second through hole through which the metal wire penetrates out of the cavity, and the image acquisition units arranged on the inner wall of the cavity are connected with a control terminal. The method comprises the steps of: (1) image acquisition; (2) target positioning; (3) ROI (Region of Interest) extraction; (4) image normalization; (5) defect detection; and (6) result output. The device has the advantages that the cost is low, the practicability is good, and the networking is easy. The method is convenient to operate, and can improve the recognition efficiency and the recognition accuracy, reduce the labor intensity of workers and reduce the production cost.
Owner:GUILIN UNIV OF ELECTRONIC TECH
A biofeedback device and system for pelvic floor muscle rehabilitation training
ActiveCN111297355BFunctionalAvoid collection effectsDiagnostic recording/measuringSensorsMuscle strengthPelvic diaphragm muscle
The invention provides a biofeedback device for pelvic floor muscle rehabilitation training, which includes a biofeedback device body, the biofeedback device body includes electrode sheets, a main control board, a housing and a power supply assembly, and the electrode sheets include several Electrode sheet and several stimulating electrode sheets. The invention also relates to a biofeedback system for rehabilitation training of pelvic floor muscles. The present invention uses the piezoelectric acquisition electrode sheet made of pressure sensing material to collect the muscle strength signal of the pelvic floor muscle, conducts electric stimulation through the stimulating electrode, and has the function of collecting the muscle strength signal of the pelvic floor muscle and the electric stimulation function at the same time. For closed-loop stimulation of pelvic floor muscles, the main control unit analyzes the collected signals and gives feedback on the stimulation mode. The present invention avoids the influence of electrical stimulation pulses on the collection, directly collects the muscle strength level that reflects the pelvic floor function, and is more adaptable to the differences of different individuals, thereby achieving a better control effect.
Owner:SUZHOU INST OF BIOMEDICAL ENG & TECH CHINESE ACADEMY OF SCI
Solar cell satellite-mounted equipment and cell test method
PendingCN114715440AHigh precisionImprove comprehensiveness and accuracyPhotovoltaic monitoringCosmonautic vehiclesElectrical batterySatellite
The invention discloses solar cell satellite-mounted equipment and a cell testing method, and belongs to the technical field of aerospace power supplies, and the solar cell satellite-mounted equipment is characterized by comprising a mounting piece connected with a satellite; the carrying solar cell piece is mounted on the upper surface of the mounting piece; the temperature sensor is mounted on the upper surface of the mounting piece and is used for testing the on-orbit temperature of the solar cell; the illumination sensor is mounted on the mounting piece and is used for monitoring on-orbit illumination angle data of the solar cell piece; the solar cell test system is used for receiving current and voltage data of the temperature sensor, the illumination sensor and the solar cell, and storing and processing the data; the communication module performs data interaction with a satellite; a solar cell piece, a temperature sensor, an illumination sensor and a solar cell test system are carried for data communication. The device has the function of independently and simultaneously acquiring data of multiple sub-batteries, and can acquire current, voltage, battery temperature, illumination angle and test time data on a complete I-V curve in one period.
Owner:CHINA ELECTRONIC TECH GRP CORP NO 18 RES INST +1
Icing galloping integrated monitoring system
PendingCN114370898ARealize real-time monitoring and early warningAvoid collection effectsUsing optical meansIntegrated monitoringImage detection
The invention relates to an icing galloping integrated monitoring system. In the system, an icing galloping data linkage APP is connected with an image acquisition module, an icing image detection module, a galloping alarm module and an online energy taking module; the icing galloping data linkage APP sends a picture, collected by the image collection module, of the power transmission line wire to the icing image detection module; a temperature and humidity sensor and a lens glass heating assembly are arranged in the image acquisition module; the icing image detection module determines the icing thickness of the power transmission line wire according to the picture; the galloping alarm module collects galloping data of the transmission line conductor, determines a galloping characteristic quantity according to the galloping data, and triggers a galloping alarm signal when the galloping characteristic quantity exceeds a galloping set threshold value; meanwhile, the galloping characteristic quantity is sent to an icing galloping data linkage APP; and the icing galloping data linkage APP performs monitoring and uploading according to the icing thickness and the galloping characteristic quantity. According to the invention, real-time monitoring and early warning of the icing galloping phenomenon of the power transmission line are realized.
Owner:BEIJING GUOWANG FUDA SCI & TECH DEV
Lens mount, distal module, endoscope and method
The invention is applicable to the technical field of endoscopes, and provides a lens mount, a far-end module, an endoscope and a method, a light source assembly accommodating part and a camera shooting assembly accommodating part are arranged in the axial direction of a lens mount body, and the light source assembly accommodating part and the camera shooting assembly accommodating part are arranged adjacently; the side wall of the lens mount body is provided with a side opening part, the side opening part is communicated with the light source assembly accommodating part, and the light source assembly accommodating part is used for accommodating a light source assembly; the bottom surface of the lens mount body is provided with a first bottom surface opening part, the first bottom surface opening part is communicated with the camera shooting assembly accommodating part, and the camera shooting assembly accommodating part is used for accommodating a camera shooting assembly. According to the lens mount, the far-end module, the endoscope and the method provided by the invention, the camera shooting unit and the light source unit can be prevented from being damaged, and the light source unit is convenient to mount.
Owner:HUNAN VATHIN MEDICAL INSTR CO LTD
Tropical rainforest mold collecting device
PendingCN112457973AHeight adjustablePrevent dumpingBioreactor/fermenter combinationsBiological substance pretreatmentsMicroorganismPetri dish
The invention relates to the technical field of mold collecting devices, and discloses a tropical rainforest mold collecting device. The tropical rainforest mold collecting device comprises a supporting rod, a lifting rod is movably connected with the interior of the supporting rod in a sleeving manner, a fixing mechanism is fixedly installed on the outer side of the supporting rod, and a horizontal platform is fixedly installed on the top face of the lifting rod. According to the tropical rainforest mold collecting device, when a forward and reverse motor runs, a rotating shaft can be drivento rotate through rotation of the output end, during rotation of the rotating shaft, a plurality of connecting blocks and covers connected with the connecting blocks can rotate around the rotating shaft simultaneously, therefore, the covers are automatically opened, and meanwhile, a plurality of culture dishes can naturally settle to collect microorganisms; after one to three minutes, the forwardand reverse motor is controlled to rotate reversely, and therefore, the rotating shaft rotates reversely to drive the covers to cover the upper portions of the culture dishes; and through automatic opening and closing of the covers, the influence of human body operation on mold settlement collection can be effectively avoided.
Owner:北方夜视科技研究院集团有限公司
Fog collector and its application method
InactiveCN100554922CImprove collection efficiencyAvoid collection effectsWithdrawing sample devicesExperimental researchEvaporation
The invention belongs to the technical field of ecological engineering. A fog water collector suitable for collecting fog water samples in the field environment was designed. The mist collecting device is mainly composed of a rainwater retaining cover, two layers of mist absorbing nets, a mist collecting dish, a connecting handle and a supporting foot. It has high fog water collection efficiency, and can effectively remove the influence of vertical precipitation and water evaporation on fog water collection in the field environment, and provides a simple and efficient experimental device for carrying out research activities on fog water in the future.
Owner:NANJING UNIV
Super-long collision avoidance control method for double-altitude three-row roller way
PendingCN113751508AControl super long collision avoidanceSmall amount of calculationRoll mill control devicesMeasuring devicesReal time acquisitionData transmission systems
The invention discloses a super-long collision avoidance control method for a double-altitude three-row roller way, and relates to the technical field of steel production. The method comprises the following steps: double-altitude three-row roller way rough rolling discharge length data and double-altitude standard billet three-row roller way rough rolling discharge length data are collected in real time, and a data transmission system is reconstructed; and a network quality inspection unit is additionally arranged in the data transmission system, the double-altitude three-row roller way rough rolling discharge length data received by the data transmission system is compared with the double-altitude standard steel billet three-row roller way rough rolling discharge length data, and the double-altitude three-roller-way delay stop correction time is adjusted according to the ratio. According to the method, the ultra-long collision avoidance of the double-altitude three-row roller way can be quickly, accurately and simply controlled in real time, and the adjustment precision of the double-altitude three-row roller way delay stop correction time is greatly improved through the control adjustment mode; and the accurate stop position and the accurate stop time of red steel materials on the three-row roller way after rough rolling of double-altitude billet with different lengths can be more accurately controlled.
Owner:YANGCHUN NEW STEEL CO LTD
Multifunctional production line for bean products
The invention discloses a multifunctional production line for bean products. The multifunctional production line comprises a cleaning inner cylinder, wherein four sets of supporting rods are annularly, evenly and fixedly mounted at the upper end of the outer surface of the cleaning inner cylinder, a cleaning cylinder is arranged on outer surfaces of lower ends of the supporting rods, semi-arc grooves are formed in positions, in contact with the supporting rods, of the cleaning cylinder, a rotating disc is fixedly connected to single ends of one set of the supporting rods, a fixing block is rotatably connected to the outer surface of the rotating disc, a fixing rod is fixedly connected to the outer surface of the upper end of the rotating disc, a first motor is fixedly connected to one end of the fixing rod, and a stirring rod is fixedly mounted at an output shaft end of the first motor. According to the multifunctional production line for the bean products, broken soybeans and floating impurities are collected through a net bag device, a baffle in the device can be used for opening and closing an opening of the net bag frame through water flow, the broken soybeans and the floating impurities are prevented from flying out of a net bag frame opening again after being collected, and therefore, the collecting effect is improved.
Owner:刘小芬
Matrix-pin-type bone surface coordinate mapper
PendingCN111227937ADense arrangementAvoid deformationSurgical navigation systemsSurgical robotsPhysicsLaser ranging
The invention relates to a matrix-pin-type bone surface coordinate mapper which comprises an outer sleeve, wherein measurement pins are disposed in the outer sleeve, a plurality of elastic limiting assemblies are disposed in the outer sleeve, each measurement pin is sleeved inside each elastic limiting assembly, the measurement pins consist of multiple protective pins and multiple collection pins,the diameter of each protective pin is larger than the diameter of each collection pin, pressure applying assemblies are installed in the outer sleeve, and a working end of each pressure applying assembly is corresponding to the tail end of each collection pin. In this way, the measurement pins are constituted through coordination of the protective pins and the collection pins, a cohesion effectof the collection pins can be realized by the protective pins, arrangement is denser and deformation is avoided, and coordinates obtained are more accurate. Effective flexible pressurizing can be satisfied through use of the mapper in cooperation with an air gun. With high universality, the mapper is applicable to various orthopedics robot operations and can be expanded to other surgical operations. A range fed back by the measurement pins can be collected accurately through existence of a laser range finder, so effective bone surface coordinate points can be acquired.
Owner:SUZHOU DIANHE MEDICAL TECH
Lens mount, distal module, endoscope and method
The invention is applicable to the technical field of endoscopes, and provides a lens mount, a far-end module, an endoscope and a method, the lens mount is provided with a camera module accommodating part along the axial direction of a lens mount body, and the camera module accommodating part comprises a camera working channel and an illumination working channel; the side wall of the lens seat body is provided with a camera module opening part, the camera module opening part comprises a first opening part and a second opening part which are adjacent to each other, the first opening part is communicated with the camera working channel, the second opening part is communicated with the illumination working channel, the first opening part is used for installing a camera module, and the second opening part is used for installing an illumination working channel. And the lighting module is arranged in the second opening part. According to the lens mount, the far-end module, the endoscope and the method provided by the invention, the camera shooting unit and the illumination unit can be more conveniently mounted, and the camera shooting unit and the illumination unit cannot be damaged.
Owner:HUNAN VATHIN MEDICAL INSTR CO LTD
An anti-random noise pulse signal synchronous integration measurement device and method
InactiveCN106053961BReduce the amount requiredReduce distractionsPulse characteristics measurementsVoltage amplitudeCapacitance
The invention brings forward a pulse signal synchronization integration measurement apparatus and method resisting random noise, for realizing pulse signal intensity measurement which has a synchronization feature and may has a high pulse pile-up probability. The content mainly comprises a fixed charge reverse charging integration circuit and a synchronization gated data acquisition circuit, and a measurement method for reducing and deducting random noise pulses. The fixed charge reverse charging integration circuit comprises an integration circuit and a fixed charge reverse charging circuit, wherein the integration circuit is used for charging a capacitor and converting intensity information of detected pulse signals into voltage amplitude information; and the fixed charge reserve charging circuit triggered by level is used for limiting output voltages of the integration circuit within a linear scope, and reverse charging pulses can be delayed so as to avoid influences on data acquisition. In terms of the measurement method, the intensity of random noise signals is measured by use of a time-sharing measurement method, the random noise pulses are further deducted in a data processing process.
Owner:NORTHWEST INST OF NUCLEAR TECH
Voiceprint detection device and method
ActiveCN110530494AAvoid collection effectsEliminate distractionsVibration measurement in solidsEngineeringAir conduction
The embodiment of the application discloses a voiceprint detection device and method. The voiceprint detection device comprises a first pickup sensor unit, a second pickup sensor and a main control analysis unit. The first pickup sensor unit collects a first voiceprint signal of a testee by means of contacting the testee. The second pickup sensor unit collects a second voiceprint signal conductedthrough air; and the main control analysis unit is used for comparing the first voiceprint signal with the second voiceprint signal when the testee makes sounds, and determining whether the voiceprintis one of the same person or not. With a solid conduction method, the influence of an open indoor environment and a noise environment on voiceprint collection is avoided.
Owner:SPEAKIN TECH CO LTD
Camera assembly, mobile terminal and body temperature measuring method based on camera
PendingCN114143427AWith collection functionWith temperature detection functionTelevision system detailsColor television detailsLight sensingOptical axis
The invention discloses a camera assembly, a mobile terminal and a body temperature measuring method based on a camera, the camera assembly comprises an image sensing layer, the light sensing side of the image sensing layer is provided with a visible light acquisition area and an infrared light acquisition area; the lens is arranged in the light incident direction of the image sensing layer; and the micro lens layer is arranged between the image sensing layer and the lens, one side, facing the lens, of the micro lens layer is provided with an infrared cut-off area and an infrared anti-reflection area, and the infrared cut-off area and the infrared anti-reflection area respectively correspond to the visible light acquisition area and the infrared light acquisition area in position in the optical axis direction. According to the camera assembly and the mobile terminal, the influence of infrared light on image acquisition is avoided, meanwhile, the material cost is reduced, the camera assembly has the image acquisition function and the body temperature detection function at the same time, and the use experience of a user of the mobile terminal loaded with the camera assembly is remarkably improved.
Owner:GEER TECH CO LTD
A gas drilling bottom near the drill bit continuous shock source nipple
Owner:SOUTHWEST PETROLEUM UNIV
A sound line detection device and method
ActiveCN110530494BAvoid collection effectsEliminate distractionsVibration measurement in solidsNoiseComputer science
The embodiment of the present application discloses a voiceprint detection device and method, including a first sound pickup sensor unit, a second sound pickup sensor, and a main control analysis unit; the first sound pickup sensor unit collects the tester's data by contacting the tester. The first voiceprint signal; the second pickup sensor unit collects the second voiceprint signal conducted through the air; the main control analysis unit is used to compare the first voiceprint signal with the second voiceprint signal when the tester speaks , to determine whether it is the voiceprint of the same person. The present application avoids the influence of open indoor environment and noise environment on voiceprint collection by the method of solid conduction.
Owner:SPEAKIN TECH CO LTD
Simulated medical electron linear accelerator for teaching
InactiveCN111672033AReduce use costNo lossX-ray/gamma-ray/particle-irradiation therapyLight beamEngineering
The invention discloses a simulated medical electron linear accelerator for teaching, relates to the technical field of teaching equipment, and aims to solve the complex technical problem. The accelerator specifically comprises a frame structure, a shaftless rotating mechanism, an accelerating mechanism and an image collecting mechanism, wherein the frame structure comprises a base, a vertical plate and a first shell cover; the vertical plate and the first shell cover are fixedly installed on the outer wall of the top of the base; the inner wall of the vertical plate is rotationally connectedwith a rotating ring; and the shaftless rotating mechanism is arranged on the outer wall of the side, close to the first shell cover, of the rotating ring. The tungsten wire heating principle is usedfor generating electrons, the electrons are accelerated by an accelerating coil and hit on a tungsten sheet to generate photons, and the photons form a conical light beam through a collimator; due tothe fact that the energy of the conical light beam decreases progressively from the center line position of the conical light beam to the periphery, the energy can be homogenized and then emitted outthrough the collimator for radiotherapy; and the whole process is relatively concise under the condition of ensuring the reliability, and the use cost is relatively low.
Owner:SHANDONG FIRST MEDICAL UNIV & SHANDONG ACADEMY OF MEDICAL SCI
A dynamic test device for machine tool spindle under cutting state of CNC machine tool
ActiveCN103231279BRealize analysisAvoid Signal Acquisition EffectsMeasurement/indication equipmentsNumerical controlEngineering
The invention discloses a testing device of tool spindle dynamics of a numerically-controlled machine tool in a cutting state and belongs to the mechanical vibration and testing field. The testing device of the tool spindle dynamics of the numerically-controlled machine tool in the cutting state comprises the numerically-controlled machine tool, a signal collecting system and an analyzing system. According to the testing device of the tool spindle dynamics of the numerically-controlled machine tool in the cutting state, actual vibration of a machine tool spindle cutting tool is measured through an electrical vortex sensor, an axel center track of the machine tool spindle is drew, cutting stimulus signals the cutting tool actually bear are measured through a cutting force tester, and the test and the analysis of dynamic characteristics of the cutting tool in the actual cutting state are achieved in combination with the measured actual vibration of the cutting tool. The testing device of the tool spindle dynamics of the numerically-controlled machine tool in the cutting state has the advantages of solving the problem that the stability of the machine tool system in the actual cutting state cannot be measured and achieving real-time measure of the numerically-controlled machine tool in the actual cutting state.
Owner:BEIJING UNIV OF TECH
A multi-gap gear-rotor system test platform
ActiveCN109839268BSimple structurePracticalMachine part testingVibration testingGear wheelClassical mechanics
The invention relates to a multi-gap gear rotor system test platform which comprises a driven gear, a driving gear, a work table base, driven gear frame support blocks, a driven gear frame, a three-axis acceleration sensor and a drive device. The work table base is L-shaped. A mounting post used for mounting a driven gear frame support block is arranged on the horizontal surface of the L shape. Agroove is arranged on the upper end of each mounting post. A driving gear shaft is fixed by upper and lower bearing plates on the vertical surface of the L shape. The driving gear is arranged on the upper part of the driving gear shaft. The lower part of each driven gear frame support block matches the groove of a mounting post in shape, and is fixed in the groove. The upper part is a cylinder used for mounting the driven gear. A number of driven gear frame support blocks are arranged, and the radius of the cylindrical parts of a number of driven gear frame support blocks is different. Due tothe driven gear frame support blocks with multiple specifications and precision, the platform has the advantages of more convenient operation, being more precise and lower processing cost.
Owner:HEBEI UNIV OF TECH
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