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275results about How to "Achieve output" patented technology

Electric cylinder with built-in force sensor

The utility model belongs to the technical field of mechanical transmission, and particularly relates to an electric cylinder with a built-in force sensor, which comprises a lead screw assembly, a force sensor assembly and a force sensor assembly, the lead screw assembly comprises a nut and a screw rod, and the nut is movably sleeved on the outer side of the screw rod; the piston rod is fixedly connected with the nut; the bearing seat is arranged on the screw rod in a sleeving mode, the front end and the rear end of the bearing seat in the axial direction are connected with first bearings correspondingly, and the first bearings are connected with the screw rod; and the force sensor is arranged on the screw rod in a sleeving manner, and the force sensor is connected with the bearing seat. The axial tension and the axial pressure from the screw rod are transmitted to the bearing seat through the two first bearings respectively, and then the tension and the pressure are transmitted to the force sensor through the bearing seat respectively, so that output of pressure signals and pressure signals is realized.
Owner:JIANGSU HENGLI HYDRAULIC

Universal high-position stacking system all-in-one machine

The invention relates to the technical field of material stacking and conveying equipment, in particular to a universal high-position stacking system all-in-one machine which solves the problems that an existing traditional stacking machine is high in energy consumption, low in operation efficiency and the like in the operation process, and particularly, during high-position operation, the energy consumption is low. And energy consumption and equipment loss are further increased because challenges of gravity and stability need to be overcome. A universal high-position stacking system all-in-one machine comprises a stacking rack, a tray lifting mechanism and a material bag positioning and discharging mechanism, a steering mechanism is installed on the rear end face of the stacking rack, a material bag leveling mechanism is installed at the rear end of the steering mechanism, and the tray lifting mechanism is installed on the inner side of the bottom end of the stacking rack. According to the automatic stacking device, material bags are subjected to flattening, steering and position adjusting and positioning in the conveying and transferring process, automatic stacking operation of the material bags on trays can be effectively achieved, the trays can be output at different heights, the manual labor amount is effectively reduced, and the stacking efficiency and quality are improved.
Owner:WUXI DADONG MACHINERY MFG

Printing and dyeing sewage treatment equipment with filter screen cleaning function

The invention discloses printing and dyeing sewage treatment equipment with a filter screen cleaning function, which comprises a sedimentation tank for treating sewage, a partition plate is fixed in the sedimentation tank, the partition plate divides the sedimentation tank into a physical treatment cavity and a biological treatment cavity, and a through hole for sewage circulation is formed in the partition plate; a rotating shaft capable of rotating transversely penetrates through the partition plate, and a motor for driving the rotating shaft to rotate is mounted at the upper end of the sedimentation tank; the rotating shaft is divided into two parts by a partition plate, and a collector for filtering sewage and a mixer for mixing the sewage are respectively arranged on the two parts of the rotating shaft. According to the invention, suspended matters in sewage can be blocked by the filter strip, the rotating filter strip changes the matching position with the through hole, the suspended matters are easily separated from the filter strip, the outer side fan plate pushes the sewage to move towards the rotating shaft, the filter strip adheres to the suspended matters and moves into the annular hole, the suspended matters are remained in the receiving box, and the number of times of cleaning the suspended matters is reduced.
Owner:TONGXIANG YAMEI TEXTILE TECH CO LTD

Tower fault detection method and system

The invention discloses a tower fault detection method and system. The method comprises the following steps: establishing an initial tower finite element model; obtaining material attribute data of a to-be-measured tower, and establishing a target to-be-measured tower finite element model in combination with the initial tower finite element model; acquiring first data of a to-be-measured tower, and acquiring second data in combination with the finite element model of the target to-be-measured tower; and comparing the second data with the first historical data set, and carrying out fault detection on the to-be-detected tower. By establishing the tower finite element mechanism model, performing simulation analysis on the stress-strain states of the tower under different working conditions, and integrating the formed stress field and deformation field data to establish the data model, the real-time analysis of the stress state of the tower and the output of the field data are realized, and the efficiency of tower fault detection is improved.
Owner:GUIZHOU POWER GRID CO LTD

Single-excitation double-output multi-parameter measurement eddy current sensor

The invention discloses a single-excitation dual-output multi-parameter measurement eddy current sensor, which is characterized in that after the eddy current sensor is arranged on the surface of a tested piece, a sine excitation signal with certain frequency and power is introduced into an excitation coil, and a magnetic field generated by the excitation coil generates eddy current on the surface of the tested piece; in the actual detection process, the lift-off value of the eddy current sensor and the surface of the tested piece is changed due to mechanical vibration or random working conditions, impedance in the excitation coil is changed, and then the current value of a loop where the excitation coil and the capacitor are located is changed. The impedance change caused by lift-off can be represented by acquiring the voltage values at the two ends of the capacitor; the differential receiving coil receives a combined magnetic field of a primary magnetic field and an eddy current field under the combined action of the primary magnetic field and the eddy current field, and has a lift-off suppression effect to a certain extent, and the balance of the receiving coil is broken only when a defect is encountered, so that the defect is detected and represented by measuring a voltage signal of the receiving coil.
Owner:UNIV OF ELECTRONICS SCI & TECH OF CHINA

Intelligent oxygen supply adjusting system for mining working face

The invention relates to the technical field of mining oxygen supply regulation, in particular to a mining working face intelligent oxygen supply regulation system which comprises oxygen supply equipment, air purification equipment is arranged on one side of the oxygen supply equipment, one end of the oxygen supply equipment and one end of the air purification equipment are both connected with connecting pipes, and one sides of the two connecting pipes are jointly connected with air hole regulation equipment. And one side of the air hole adjusting equipment is connected with an air supply pipe, and fan equipment is installed at one end of the air supply pipe. Air can be effectively purified through the effect of the purification assembly, disassembly and replacement are convenient, the gas condition in the mine tunnel can be effectively monitored so that whether gas supply is conducted or not can be rapidly controlled, meanwhile, the oxygen content can be controlled, the safety in the mine tunnel is guaranteed, gas can be fully supplied to workers in the mine tunnel, and the working efficiency is improved. And fixed-point oxygen supply can be carried out according to the conditions in the mine tunnel, and the gas quality in the mine tunnel is improved.
Owner:CHINA SHENHUA ENERGY CO LTD SHENDONG COAL BRANCH +1

Document processing method and device based on rich text data, computer equipment, medium and product

The invention relates to a document processing method and device based on rich text data, computer equipment, a medium and a product. The method comprises the following steps: analyzing HTML (Hypertext Markup Language) contents in a rich text editor to obtain an HTML node tree; determining a document storage component and a style definition component of the template document according to the document format standard definition; traversing nodes of the HTML node tree, and mapping the nodes to a document storage component and a style definition component to obtain a document storage structure and a document style structure under the document format standard definition; and based on the document storage structure and the document style structure, generating an XML document under the document format standard definition, and processing the template document according to the XML document to obtain a target document. By the adoption of the method, data security can be guaranteed, the rich text editor content or the webpage content can be flexibly supported to be converted and inserted into the Word template, meanwhile, the template predefined style is reserved, and therefore the document requirement under the multi-service scene is met.
Owner:SHENZHEN COMTOP INFORMATION TECH

Multifunctional automobile combination switch handle structure

The utility model provides a multifunctional automobile combination switch handle structure comprising a housing, in which a slide block button, a conductive rubber plate, a first circuit board, a first knob, a first contact bridge, a second circuit board, a third circuit board, a second contact bridge and a second knob are successively arranged along the length direction. The sliding block button is used for pressing the conductive rubber plate downwards and then making contact with a conductive contact on the first circuit board, the first rotary knob drives the first contact bridge to make contact with a conductive contact on the second circuit board, and the second rotary knob drives the second contact bridge to make contact with a conductive contact on the third circuit board. The first circuit board, the second circuit board and the third circuit board are connected through flexible wires to form a flexible circuit board assembly. According to the utility model, the structural design problem that related functions of the windscreen wiper are integrated on the left side handle is solved, and a complete windscreen wiper switch gear function can be set in a narrow handle arrangement space.
Owner:HUANGSHAN AUTOMOBILE ELECTRIC EQUIP CO LTD

Tritium feeding system of fusion device and control method of tritium feeding system

The invention discloses a tritium feeding system of a fusion device and a control method of the tritium feeding system, and relates to the technical field of controlled nuclear fusion device feeding, and the tritium feeding system comprises a negative pressure containing operation space and a tritium gas transmission pipeline located in the negative pressure containing operation space; the tritium gas transmission pipeline is located in the negative pressure containing operation space, and a gas storage device, a first pressure controller and a first pipeline barometer are sequentially arranged on the tritium gas transmission pipeline in the gas transmission direction of the tritium gas transmission pipeline; the gas storage device is used for storing gas in the tritium gas transmission pipeline; the first pressure controller is used for controlling the internal air pressure of the tritium gas transmission pipeline; the first pipeline barometer is used for detecting the pipeline air pressure at the front end of the injection valve; and the air storage device is provided with a second pipeline barometer for detecting the air pressure in the air storage device. Under a low-pressure working mode and a conventional pressure intensity working mode, the tritium feeding efficiency can be guaranteed, and efficient injection is achieved.
Owner:SOUTHWESTERN INST OF PHYSICS

Linear polarization vortex beam generator and beam generation method thereof

The invention discloses a linear polarization vortex beam generator, and relates to the technical field of metasurfaces, a generating device is a silicon dioxide substrate, a plurality of rectangular columns and cubic columns are arranged on the substrate and distributed in a matrix mode, and the length and the width of each cubic column are composed of eight groups of different parameters. In addition, the cubic columns have different rotation angles according to different positions where the cubic columns are located. The beam generation method comprises the following steps: expanding a standard W-waveband waveguide port to realize TE01 mode output, and generating linear polarization vortex beam output under vertical incidence. The amplitude and the phase of the transmission electromagnetic field are changed by controlling the geometric dimension and the rotation angle of the rectangular column. The invention further discloses a light beam generation method of the linear polarization vortex light beam generator, the dual-function metasurface is simple in structure, light in weight and small in size, convenience is brought to generation of vortex light beams in practical application, and the dual-function metasurface can be used for generating deflection of quasi-light light beams and outputting of high-power special light beams.
Owner:SOUTHEAST UNIV

Linear direct drive type electro-hydraulic servo proportional valve of multi-flow series slide valve level structure

The utility model belongs to the technical field of mechanical engineering, and relates to a linear direct drive type electro-hydraulic servo proportional valve of a multi-flow series slide valve level structure, which comprises an end cover, a spring, a spring seat, a valve core, a valve sleeve, a shell, a controller and a proportional electromagnet, the valve element is slidably arranged in the valve sleeve, the valve sleeve and the valve element form a sliding valve level structure and are arranged in the shell, the end cover is arranged on the left side of the shell, the spring and the spring seat are arranged in the shell, the spring seat makes contact with the left end face of the valve element, one end of the spring makes contact with the spring seat, and the other end of the spring makes contact with the wall face of an inner hole of the end cover. An extension rod of the proportional electromagnet makes contact with the right end face of the valve element, the controller is arranged above the proportional electromagnet, electrically connected with the proportional electromagnet and used for controlling the extension length of the extension rod of the proportional electromagnet, two rows of square holes are formed in the outer circumferential face of the valve sleeve, one row of square holes are communicated with the load port A, and the other row of square holes are communicated with the load port B; a plurality of pressure equalizing grooves with different outer circle sizes are formed in the circumferential face of the valve element.
Owner:AVIC NANJING SERVO CONTROL SYST CO LTD

Knowledge-driven medical image report structured processing method and device

The invention provides a knowledge-driven medical image report structured processing method and device, and the method is based on an image knowledge base constructed through the combination of various modes such as medical knowledge, large language model or rule matching, manual verification and the like, and the image knowledge base comprises complete medical image knowledge. Furthermore, the accuracy of the medical entity in the image report identified based on the medical knowledge in the image knowledge base is higher. And carrying out hierarchical combination on the medical entities with the cascade relationship in the same clause to realize the planning output of the structured information. And finally, for the medical entity information of all clauses in the image report, removing repeated and redundant entity information existing among different clauses to obtain structured information corresponding to the image report, and further improving the accuracy of the structured information in the image report.
Owner:RUIJIN HOSPITAL AFFILIATED TO SHANGHAI JIAO TONG UNIV SCHOOL OF MEDICINE

Intelligent storage and output equipment

The utility model discloses intelligent storage and output equipment which comprises a left storage device, a tray receiving device, a right storage device, a tray output device, a middle storage device and a movable taking and placing device. According to the intelligent storage and output equipment, through the design of the left storage device, the right storage device and the middle storage device, storage of material trays is achieved, and through the arrangement of the material tray receiving device and the material tray output device, the material trays can be input and output more rapidly and conveniently; besides, the movable taking and placing device can freely move among the left storage device, the middle storage device and the right storage device and can accurately grab and place the trays, so that storage and output of the trays can be automatically managed, and confusion and errors possibly occurring in a traditional storage mode are avoided; in addition, the management efficiency of the charging tray is improved, and the smooth production process is ensured.
Owner:GUANGDONG SONGWEI TECH CO LTD

Intelligent temperature, humidity and pressure sensor

ActiveCN222598871UImprove corrosion resistanceGuaranteed normal vibrationData acquisitionCommunication control
The utility model discloses an intelligent temperature, humidity and pressure sensor, which is characterized by comprising a shell structure, a connector, a protective cover, an analog board, a main board, a probe board, a pressure sensitive element and an upper cover structure, the analog board, the main board and the pressure sensitive element are accommodated in the shell structure, and the probe board extends out of one end of the shell structure, is in contact with the environment and is used for measuring environment temperature and humidity information; the main board is used for data acquisition and communication control, and the analog board is used for power conversion and analog current driving; the hollow part of the upper cover structure accommodates the connector, and the connector is protected on the opposite side through the protective cover; the pressure sensitive element is used for measuring environment pressure information; the pressure sensitive element and the probe plate output digital signals. Three laser welding connecting parts are arranged at the joint of the shell structure, between the upper cover structure and the shell structure and between the connector and the upper cover structure; and the interior of the shell structure is completely isolated from the external environment through a potting method.
Owner:AEROSPACE JICHUANG IOT RES INST (NANJING) CO LTD

Multi-output switching power supply and control method thereof

The invention provides a multi-output switching power supply and a control method thereof, the multi-output switching power supply comprises a primary power loop, an isolation transformer, a secondary power loop, N output branches and a control device, the primary power loop is connected with a primary winding of the isolation transformer; the primary power loop is connected with a primary winding of the isolation transformer, the secondary power loop is connected with a secondary winding of the isolation transformer, the secondary power loop is further connected with the N output branches, and the control device is connected with the primary power loop, the secondary power loop and the N output branches and used for controlling the primary power loop according to feedback signals of the N output branches. And the total energy transmitted from the primary winding to the secondary winding of the isolation transformer is adjusted, and the N output branches are controlled to be conducted in a time-sharing manner in a follow current period of the secondary power loop, so that the output of multiple voltages is realized with relatively low cost and complexity and relatively high efficiency.
Owner:ZHUHAI NANXIN SEMICON TECH CO LTD

Atmosphere lamp and vehicle

The utility model provides an atmosphere lamp and a vehicle. The atmosphere lamp comprises a support, a light guide assembly, a transmission assembly and a light-emitting part. The light guide assembly comprises a light guide strip which is installed on the support and arranged opposite to the light-emitting part. A guide rail is arranged on the support. The transmission assembly is slidably installed on the guide rail. The light-emitting part is installed on the transmission assembly, and the transmission assembly is used for driving the light-emitting part to move along the guide rail, so that light emitted by the light-emitting part moves along the light guide strip while penetrating through the light guide strip. According to the utility model, when the light-emitting part arranged on the transmission assembly moves along the guide rail, the light emitted by the light-emitting part moves along the light guide strip arranged opposite to the light-emitting part and is emitted out through the light guide strip, so that the output of lamplight interaction information is realized through the on-off of the light-emitting part or the change of the relative position between the light-emitting part and the light guide strip. According to the utility model, the light atmosphere building effect of the atmosphere lamp is also ensured under the condition of ensuring the dynamic precision and continuity of light.
Owner:GUANGZHOU AUTOMOBILE GROUP CO LTD

Wide tuning range Class C inductance-capacitance voltage-controlled oscillator

The invention provides a Class C inductance-capacitance voltage-controlled oscillator with a wide tuning range, which belongs to the technical field of voltage-controlled oscillators and is composed of an LC resonance circuit and a negative resistance area circuit which are connected in parallel. The LC resonant circuit comprises an on-chip symmetrical spiral inductor, a switched capacitor array, a first variable capacitance tube CV1 and a second variable capacitance tube CV2; the negative resistance area circuit comprises a tail current tube M, a first filter capacitor C1, a second filter capacitor C2, a first cross coupling triode Q0, a second cross coupling triode Q1, a first resistor R0, a second resistor R1, a first filter inductor L3 and a second filter inductor L4; the negative resistance area circuit is connected with the LC resonance circuit; through the switched capacitor array and the two variable capacitance tubes which are matched with each other, the wide tuning range frequency output is realized, and through improving the structure of the switched capacitor array, the anti-interference performance is enhanced, and the phase noise is optimized at the same time.
Owner:UNIV OF ELECTRONICS SCI & TECH OF CHINA

Portable cylinder valve dismounting clamp

The utility model belongs to the technical field of gas cylinder inspection equipment, and particularly relates to a portable gas cylinder valve dismounting clamp which comprises a groove-shaped frame body, an opening of the groove-shaped frame body faces one side, the bottom end of the frame body is connected with one end of a chain, and the other end of the chain is detachably connected with the top end of the frame body. A clamping block is arranged in the frame body, can be driven by a driving mechanism to eject towards the opening direction of the groove-shaped frame body to clamp the gas cylinder, and can be retracted; a bottom beam is fixedly connected to the bottom of the frame body and used for being treaded and fixed by people. The device is portable, light in weight and convenient to carry; the gas cylinder is wrapped by the chain, the contact area with a cylinder body is large, stress is uniform, wrapping force is higher after force is applied, the gas cylinder is prevented from rotating, and the cylinder valve can be disassembled by one person.
Owner:山东国安特种设备检验检测有限公司

Packaging film cutting device

The utility model provides a packaging film cutting device, which belongs to the technical field of packaging cutting, and comprises a cutting platform, a feeding roller assembly, a transmission roller assembly and a cutting support are arranged on the cutting platform, an electric telescopic rod is arranged on the cutting support, and the transmission roller assembly is arranged on the cutting support. The output end of the electric telescopic rod is connected with a cutting knife set, the cutting knife set comprises a knife holder, a movable groove matched with a cutting knife head is formed in the bottom of the knife holder, a sliding groove is formed in the top end of the movable groove, a sliding block matched with the sliding groove is arranged at the top end of the cutting knife head, and a through hole is formed in the middle of the cutting knife head. A movable shaft is arranged in the middle of the movable groove, the movable shaft penetrates through the through hole and is used for being movably connected with the cutting tool bit in the tool apron, and the portion, at one end of the right side of the movable groove, of the movable shaft is sleeved with a reset spring. The cutting device can solve the problem that effective cutting cannot be carried out by means of pure pressing cutting.
Owner:QINGDAO ENER PACKAGING TECH

Electromechanical product design method and system based on deep learning of part database

The invention relates to the field of mechanical and electrical product design, and provides a mechanical and electrical product design method and system based on deep learning of a part database, and the method comprises the following steps: building a part database; establishing an initial hybrid design optimization model, and training and testing the initial hybrid design optimization model through the part database to obtain a hybrid design optimization model; obtaining mechanical and electrical product design demands, obtaining a plurality of demand part model index data corresponding to the mechanical and electrical product design demands based on the mechanical and electrical product design demands and the part assembly demand analysis model, and inputting the plurality of demand part model index data into the hybrid design optimization model, outputting a plurality of mechanical and electrical product 3D models corresponding to the mechanical and electrical product design requirements; and producing a corresponding mechanical and electrical product according to the mechanical and electrical product 3D model. A part database including part model index data, a part assembly scheme and a mechanical and electrical product 3D model is established, and a hybrid design optimization model is established by using a deep learning network, so that the mechanical and electrical product 3D model meeting the requirement can be automatically generated according to the mechanical and electrical product design requirement given by a user; and intelligent design of mechanical and electrical products based on the full-life-cycle data of the products is realized.
Owner:WUHAN UNIV OF TECH

Grate cooler working condition prediction method combining intrinsic orthogonal decomposition and deep learning

The invention discloses a grate cooler working condition prediction method combining intrinsic orthogonal decomposition and deep learning, and belongs to the technical field of digital twinning. The prediction method comprises the following steps: simulating a grate cooler flow field through a CFD technology to obtain a large amount of sample data, and combining an intrinsic orthogonal decomposition method with a multilayer back propagation neural network to predict the working condition of a grate cooler; therefore, rapid prediction of the flow field of the grate cooler is achieved, the problems of high cost and long time of CFD simulation calculation are solved, meanwhile, prediction data and actual sensor detection values are in butt joint through a coupling filtering correction algorithm, the problem that errors exist between simulation prediction values and field detection values is solved, and the prediction accuracy of the flow field of the grate cooler is improved. And actual deployment and guidance optimization production of the reduced order and digital twin model of the grate cooler in a factory are realized.
Owner:HEFEI CEMENT RESEARCH AND DESIGN INSTITUTE CO LTD

A high voltage and high current connector

The present invention belongs to the technical field of connectors, and in particular, relates to a high-voltage and high-current connector, including a plug assembly and a socket assembly; the plug assembly includes a first shell portion, a second shell portion, a plug insulator, a terminal jack assembly and a tail buckle, and the inner hole axis of the first shell portion and the inner hole axis of the second shell portion are not on the same straight line; the plug insulator is installed in the first shell portion, the terminal jack assembly is installed in the plug insulator, the terminal jack assembly is connected to one end of the cable, and the other end of the cable is connected to the outside world. The socket assembly includes a socket shell, a socket insulator and a terminal pin, the socket insulator is installed in the socket shell, and the terminal pin is installed in the socket insulator. The socket shell extends into the second shell portion, and the terminal pin is connected to the terminal jack assembly, so that the terminal pin is electrically connected to the cable. There is a certain angle between the first shell portion and the second shell portion of the plug assembly, which makes the connector smaller and reduces the occupied space.
Owner:SHENZHEN BUSBAR SCI TECH DEV

A performance simulation analysis method and system for a platinum recovery device

The present invention provides a performance simulation analysis method and system for a platinum recovery device, which belongs to the field of data processing technology, and specifically comprises: determining the recovery deviation under different recovery material samples by comparing the deviation between the simulation results of a matching simulation model under different control schemes and the recovery results of corresponding historical recovery processing times; when there is no recovery material sample whose recovery deviation does not meet the requirements, obtaining the recovery data and recovery deviation of different types of recovery material samples, and determining a reliable simulation model in combination with the matching coefficients of different matching simulation models, adjusting the control variables of different operation links, and outputting process optimization suggestions under different types of recovery material samples based on the deviation between different simulation processing results and the deviation of different control variables, thereby ensuring the efficiency of platinum recovery analysis and processing.
Owner:ZHEJIANG JINTAILAI ENVIRONMENTAL PROTECTION TECH CO LTD

Laminated thermoelectric-piezoelectric hybrid energy collector

The invention provides a laminated thermoelectric-piezoelectric hybrid energy collector. The collector comprises a laminated thermoelectric conversion unit and a piezoelectric conversion unit. The thermoelectric conversion unit comprises a heat-conducting sheet, a thermoelectric material, a conductive copper sheet, a load resistor and a wire. The piezoelectric conversion unit comprises a substrate layer cooling fin, a piezoelectric plate and a mass block. According to the hybrid energy collector, the thermoelectric conversion unit and the piezoelectric conversion unit are integrated, the thermoelectric energy converter and the piezoelectric energy converter are combined into a hybrid energy collection device, environmental waste heat and environmental wind energy are converted into electric energy at the same time, the manufacturing cost of the energy collector is reduced, and meanwhile the environmental energy utilization efficiency is improved. According to the device, heat energy generated by the waste heat discharging device and environmental wind energy can be fully utilized at the same time for recycling power generation capacity, high energy collection efficiency is achieved, the device is simple and stable, the practicability of the device is improved, and good application prospects are shown in the field of energy collection.
Owner:SHANGHAI DIANJI UNIV

Qualitative detection method and quantitative detection method of salmonella based on RPA-CRISPR / Cas12a

The invention discloses a qualitative detection method and a quantitative detection method of salmonella based on RPA-CRISPR / Cas12a (recombinase polymerase amplification-CRISPR / CRISPR / Cas12a). The qualitative detection method comprises the following steps: reacting a mixed system at least comprising an RPA reagent, a salmonella upstream primer, a salmonella downstream primer, a CRISPR / Cas12a system and a to-be-detected sample to obtain a reaction product of the to-be-detected sample; and detecting the reaction product of the to-be-detected sample by adopting a fluorescence detection method or an electrochemical test paper detection method, and qualitatively detecting the salmonella in the to-be-detected sample according to an absorption peak at 500-520nm of a fluorescence spectrum or a T line and a current value of electrochemical test paper. According to the salmonella detection method provided by the invention, potential pollution risks in a traditional step-by-step reaction process are avoided, and meanwhile, the detection method shows high stability, relatively high specificity, excellent sensitivity and excellent field detection capability.
Owner:HEFEI UNIV OF TECH

Spray type glue dispensing gun and rebound type glue dispensing gun

The invention discloses a spray type glue dispensing gun and a rebound type glue dispensing gun, and relates to the technical field of plastic dripping. According to the spray type glue dispensing gun, gas and liquid raw materials are injected into the jet flow shell A at the same time, when the spray type glue dispensing gun is used, the piston rod A circularly pushes the raw materials in an inner cavity of the jet flow shell A to be sprayed out in an atomized mode under the action of the gas, so that a larger area can be covered by spraying out each time, and the plastic dripping efficiency is higher when large-area plastic dripping operation is carried out; according to the springback type glue dispensing gun, the piston rod C is far away from the sealing ring through pushing of raw materials, so that an inner cavity of the second shell B communicates with an inner cavity of the first shell B, and output of the raw materials is achieved; and the piston rod C automatically rebounds and abuts against the sealing ring through the elastic effect, so that the inner cavity of the second shell B and the inner cavity of the first shell B are disconnected, automatic closing is achieved, the piston rod C does not need to be pushed by an air source to move, and more cost is saved.
Owner:欧水胜

A dual-spectrum camera based on FPGA

The present invention discloses a dual-spectrum camera based on FPGA, including a super starlight-level night vision full-color sensor, an infrared cutoff filter switching module, an SCCB interface, an infrared lighting device and an image processing device. The infrared lighting device realizes near-infrared light illumination for infrared exposure of the dual-spectrum camera under weak light conditions; the infrared cutoff filter switching module switches the light entering the super starlight-level night vision full-color sensor to visible light or infrared light; the super starlight-level night vision full-color sensor receives the driving control of the image processing device based on the SCCB interface, realizes the photoelectric conversion of visible light and the photoelectric conversion of infrared light to obtain image data; the image processing device is realized based on FPGA, and is used to drive and control the super starlight-level night vision full-color sensor, the infrared cutoff filter switching module and the external lighting device, and receive the image data output by the super starlight-level night vision full-color sensor.
Owner:ZHEJIANG WUZHEN STREET TECH CO LTD

Filling mechanism for producing metal surface treating agent

The utility model provides a filling mechanism for producing a metal surface treating agent, which comprises a longitudinally arranged rack, driving rollers are symmetrically and rotatably arranged on the front side and the rear side of the upper end of the rack, a conveying belt is connected between the two driving rollers, a material barrel is arranged on the right side of the rack, a discharge port at the lower end of the material barrel is connected with a discharge pipe, and the lower end of the discharge pipe is connected with a conveying belt. The discharging pipe is connected with a gear pump, and a gear shaft of the gear pump and the transmission roller on one side are connected with an alternate driving assembly driven by a servo motor, so that quantitative output of the discharging pipe can be achieved, and fixed-distance conveying of the conveying belt is achieved and alternate operation is achieved. The quantitative filling device has the advantages that quantitative filling can be automatically and repeatedly completed, the filling barrel is conveyed in place, a gear pump does not need to be manually started and stopped, and time and labor are saved.
Owner:WANGSHI PAINTING TECHNOLOGY (NINGBO) CO LTD

On-chip tunable femtosecond light source based on integrated electro-optical frequency comb

The invention belongs to the field of laser, and discloses an on-chip tunable femtosecond light source based on an integrated electro-optical frequency comb, which comprises an intensity modulator (9), a first phase modulator (10) and a second phase modulator (11) which are integrated on the same chip and are connected in sequence, the three paths of radio frequency driving signals respectively provide radio frequency driving signals for the intensity modulator, the first phase modulator and the second phase modulator; the intensity modulator performs intensity modulation on the wavelength-tunable continuous optical signal to generate a flat-topped optical pulse sequence; the first phase modulator and the second phase modulator are used for performing quadratic phase modulation on the flat-topped optical pulse sequence to generate a broadband electro-optical frequency comb; the dispersion optical fiber is used for carrying out pulse compression on the electro-optical frequency comb so as to generate femtosecond optical pulses. Compared with an existing femtosecond pulse light source generation system, the femtosecond pulse light source generation system has the advantages of being simple in structure, high in integration level, tunable in pulse width and repetition frequency, low in cost and the like.
Owner:HUAZHONG UNIV OF SCI & TECH

A 1P switch-based power collection system and collection method

The present invention discloses a power collection device and a power collection method based on a 1P switch, which utilizes a DAC value generation and calibration method at each point of a standard 220V voltage waveform and an analog voltage waveform generation method to solve the problem of power collection on a 1P switch without voltage loop access, and realizes power, energy, effective value, power, etc. calculation on the 1P switch.
Owner:FUJIAN NETPOWER TECH DEV CO LTD +2