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47results about How to "Easy to carry on site" patented technology
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Electronic mutual inductor test system and test method
The invention discloses an electronic mutual inductor test system and a test method. The electronic mutual inductor test system comprises a standard device, a signal conversion device, an error measuring device, a test power supply, a merging unit and a tested electronic mutual inductor, wherein the standard device is used for providing a standard signal serving as a test reference; the signal conversion device is used for receiving the standard signal and converting the standard signal into an analog signal which can be acquired by the error measuring device; the test power supply is used for outputting a primary voltage and a primary current for test use; the merging unit is used for receiving a digital signal output by the tested electronic mutual inductor and processing the digital signal; and the error measuring device is used for receiving the standard signal output by the signal conversion device and the digital signal output by the merging unit, and acquiring the ratio difference and the phase difference of the tested electronic mutual inductor. The electronic mutual inductor test system is particularly suitable for a field error test of the electronic mutual inductor, andhas the advantages of convenient test work, high reliability, small equipment volume, light weight, high test result accuracy and the like.
Owner:HEFEI POWER SUPPLY COMPANY OF STATE GRID ANHUI ELECTRIC POWER +1
Contact type automatic ice and snow depth measuring method
InactiveCN1448689AReliable dataEasy to carry on siteMechanical thickness measurementsElectrical/magnetic thickness measurementsPhysical hard workResting time
The automatic ice and snow thickness contact measuring method belongs to ice and snow thickness variance monitoring technology. Two detecting boards are made to face-to-face move automatically and vertically, and the distance between the reference point and the surface of ice or snow is detected to determine the thickness variance of ice or snow. The sensor for measuring the moving distance ofdetecting boards is either rotation speed sensor or magnetostricctive displacement sensor. The stay time for the detecting boards on ice or snow on the ice or snow interface is at most 10 sec to avoid no freezing with the detecting boards staying in reference position in rest time. The interval between two times of automatic measurement is optional in 0-60 min. The present invention can perform automatic in-situ measurement.
Owner:DALIAN UNIV OF TECH
Expandable modular multi-channel off-line programmer
ActiveCN105760186AEasy maintenanceEasy to replaceSoftware engineeringProgram loading/initiatingEngineeringUSB
The invention provides an expandable modular multi-channel off-line programmer. The expandable modular multi-channel off-line programmer comprises an off-line programmer main board and N off-line programmer daughter boards, wherein N is an integer larger than 1.The off-line programmer daughter boards are fixed to the off-line programmer main board in a pluggable mode. The N off-line programmer daughter boards are identical independent modules, are each provided with an independent first USB interface and an independent first SWD interface and can independently complete off-line programming of Flash3 memories of target chips and updating of source programs. The off-line programmer main board comprises a second USB interface and N second SWD interfaces, the second USB interface is connected with the first USB interfaces of the off-line programmer daughter boards, the second SWD interfaces are connected with the second SWD interfaces of the off-line programmer daughter boards, and through the off-line programmer main board, the multi-channel off-line programmer can complete transmitting and updating of source programs and off-line programming of target chips. The expandable modular multi-channel off-line programmer can break through the limitation of the number of off-line programming channels, and thus the requirement for volume production can be met in the large-scale chip programming process; due to the fact that all channels are relatively independent, module maintenance and replacement can be conveniently carried out if one channel fails.
Owner:GIGADEVICE SEMICON (BEIJING) INC +1
On-site full-automatic pressure and electric signal calibrator
ActiveCN102305689AReduce weightReduce volumeFluid pressure measurementPositive-displacement liquid enginesGas cylinderDisplay device
The invention discloses an on-site full-automatic pressure and electric signal calibrator. The on-site full-automatic pressure and electric signal calibrator comprises a shell, a power supply switch, a plurality of interfaces, a display, control components such as a keyboard and the like, a gas pressure generation unit, a power supply unit, a pressure detection unit, a gas pressure control unit and an electric signal detection unit, wherein the gas pressure generation unit is a miniature gas pressure pump which is communicated with atmosphere; the pressure output ends of the pressure control unit are communicated in parallel and are used for accommodating a pressure standard machine and a pressure joint of a meter to be detected; the pressure control unit is connected with the pressure standard machine in the pressure detection unit through signals; the electric signal detection unit is in signal connection with the pressure control unit and the meter to be detected in the pressure detection unit; and a battery can supply power to the power supply unit. The on-site full-automatic pressure and electric signal calibrator does not need external gas cylinders or alternating current (AC) power supplies, can automatically generate gas pressure and accurate standard pressure, can perform double detection and calibration of pressure and electric signals, has light self weight and small volume, is convenient to carry on site, and can automatically calibrate various on-site pressure meters.
Owner:BEIJING CONST INSTR TECH INC
Remote mechanical fault diagnosis system based on Android
InactiveCN107948251ALarge storage capacityImprove work efficiencyMachine gearing/transmission testingMachine bearings testingDigital signal processingComputer module
The invention provides a remote mechanical fault diagnosis system based on Android. The system is characterized by comprising a collecting end and a mobile terminal; each of the collecting end and themobile terminal is provided with a communication module for the data interaction between pieces of equipment; the collecting end further comprises a digital signal collecting module; the mobile terminal further comprises a digital signal processing module; the digital signal collecting module collects various detection data of to-be-detected equipment and transmits the detection data to the mobile terminal; the digital signal processing module generates a result diagnosis report after processing and analyzing the detection data. The system provided by the invention can be used for fast, efficiently and precisely detecting the mechanical faults and like problems of a bearing and a gear case.
Owner:WUHAN UNIV OF SCI & TECH
Portable multifunctional offline programmer
ActiveCN105679366AImprove operational efficiencyImprove running stabilityRead-only memoriesSoftware testing/debuggingUSBData interchange
The invention provides a portable multifunctional offline programmer. The portable multifunctional offline programmer comprises: a master control MCU module; a Flash memory, wherein large-capacity readable and writeable operation is arranged in the Flash memory, and the Flash memory is used for storing a Firmware program and a source program of the offline programmer; a USB interface used for exchanging data with other external devices; an SWD interface used for debugging the programs, carrying out offline programming and updating the source program; an instruction reception and execution module used for the offline programmer to execute all functions; and a running state display module used for displaying all running states of the offline programmer. The portable multifunctional offline programmer can realize offline program programming and update the programs in the hardware chip Flash memory, and also can be used as a program debugger.
Owner:GIGADEVICE SEMICON (BEIJING) INC +1
Display method of tempered martensitic steel carbide colour metallography and electrothermal metallographic chromogenic device special for display method
ActiveCN102364323ADisplay clearEasy to operatePreparing sample for investigationMetallographyCarbide
The invention discloses a display method of tempered martensitic steel carbide colour metallography, comprising the following steps of: (1) grinding and polishing the surface of a tempered martensitic steel sample to obtain a tempered martensitic steel metallographic sample; (2) heating the tempered martensitic steel metallographic sample in the oxidation atmosphere to 400-500 DEG C, keeping warm for 6-15 minutes, and forming an interference oxide-film, which makes the microstructure of metal and alloy to present different colors by the action of light, on the surface of the tempered martensitic steel sample, so as to display the tempered martensitic steel carbide color metallography. The method provided by the invention can be used to effectively display and raise the contrast between the T91 steel carbide and the matrix microstructure, so as to effectively observe the microstructure form of the martensitic steel.
Owner:ELECTRIC POWER RES INST OF GUANGDONG POWER GRID +1
Multi-range on-site full-automatic pressure calibrator
ActiveCN102305688AEasy to carryReduce weightFluid pressure measurementPositive-displacement liquid enginesGas cylinderDisplay device
The invention discloses an on-site full-automatic pressure calibrator. The on-site full-automatic pressure calibrator comprises a shell, a power supply switch, a plurality of interfaces, a display, control components such as a keyboard and the like, a gas pressure generation unit, a power supply unit, a pressure detection unit and a gas pressure control unit, wherein the gas pressure generation unit is a miniature gas pressure pump which is communicated with atmosphere; the pressure output ends of the pressure control unit are communicated in parallel and are used for accommodating a pressurestandard machine with multiple ranges and a pressure joint of a meter to be detected; the pressure control unit is connected with the pressure standard machine in the pressure detection unit through signals; and a battery can supply power to the power supply unit. The on-site full-automatic pressure calibrator does not need external gas cylinders or alternating current (AC) power supplies, can automatically generate gas pressure and accurate standard pressure, has light self weight and small volume, is convenient to carry on site, is suitable for various meters to be detected, and can automatically calibrate various on-site pressure meters.
Owner:BEIJING CONST INSTR TECH INC
Portable tester for braking torque of elevator brake in use
The invention provides a portable tester for braking torque of an elevator brake in use. The tester can quantitatively and accurately inspect the braking torque of a static elevator in use and provide a reliable basis for comprehensive inspection of the elevator. The tester comprises a tuning gear and a control system, wherein the turning gear comprises a turning hand wheel and multiple different specifications of detachable small wheels coaxial with the turning hand wheel; the small wheels are in multiple relation with the radius of the turning hand wheel, and a torque sensor and a touch display are mounted on the turning hand wheel; the control system comprises an input / output system and a computer chip control system. The tester is portable, field measurement by elevator inspectors is facilitated, the measuring process is convenient and quick, measured data are scientific and accurate, no damage is caused to the tested elevator, and the safety is high.
Owner:河南省特种设备安全检测研究院商丘分院
A thermal power plant negative pressure side system leakage point accurate positioning method
ActiveCN109816656AFast positioningImprove detection efficiencyImage analysisFluid-tightness measurement using lightAnti jammingEngineering
The invention discloses a thermal power plant negative pressure side system leakage point accurate positioning method. The method is characterized by comprising the following steps of firstly, adopting an infrared image acquisition device to carry out infrared image shooting on a suspected leakage point position of a negative pressure side system of a thermal power plant; reading an infrared imaging video of the detected equipment through an upper computer processing system, carrying out graying processing, denoising processing and image enhancement processing on the extracted sample image, carrying out a moving template method to identify the image space position of the vacuum leakage point part in the image, and finally accurately determining the leakage point position of the vacuum pipeline. Compared with an existing method, the method has the advantages of being high in positioning speed, high in detection efficiency, high in anti-jamming capability, free of pollution to the environment, free of a large number of external devices, convenient to carry on site, obvious in defining of a leakage area, short in detection time and low in detection cost.
Owner:LIAONING TECHNICAL UNIVERSITY
Multi-range on-site full-automatic pressure calibration instrument
ActiveUS20150323409A1Easy to carryOvercome defectsPump testingPositive displacement pump componentsGas cylinderDisplay device
Provided is a multi-range field full-automatic pressure and electric signal calibrating instrument, comprising: control components such as a shell, a power switch, multiple-interfaces, a display, a keyboard, and a gas pressure generating unit, a power supply unit, a pressure detecting unit, a gas pressure control unit and an electric signal detecting unit; the pressure output end of the pressure control unit is in parallel connection with pressure joints which are used for installing multiple pressure standard meters and detected meters with different ranges; the pressure control unit is in signal connection with the pressure standard meters; the electric signal detecting unit is in signal connection with the pressure control unit and the detected meters; the power supply unit can supply power by batteries. The calibrating instrument does not need to be externally connected with a gas cylinder and an alternating current power supply and can automatically generate a gas pressure and generate an accurate standard pressure; the design of the multi-range pressure standard meter can be suitable for various detected meters; the double detection and calibration for pressure and electric signals can be implemented; the weight and volume of the instrument are small; and the multi-range field full-automatic pressure and electric signal calibrating instrument is convenient to carry in the field and can carry out automatic calibration on various field pressure instruments.
Owner:BEIJING CONST INSTR TECH INC
RPLDECT rail potential limiting apparatus electrical apparatus characteristics tester
ActiveCN105911391AEnsure personal safetyReduce volumeElectrical testingCurrent limitingInput control
The invention provides a RPLDECT rail potential limiting apparatus electrical apparatus characteristics tester which comprises a housing in which following components are connected in a successive order through lines: a power supply input control unit, a power supply isolation and regulation unit, a power supply voltage doubling, current rectifying and voltage boosting unit, a high voltage current limiting unit, a high voltage output control unit, a high voltage conduction millivolt maintaining and synchronizing unit and a millivolt output unit. The power supply input control unit is further connected to an auxiliary power supply unit. The high voltage output control unit, the high voltage conduction millivolt maintaining and synchronizing unit and the millivolt output unit are connected to a data accessing, displaying and recording unit. The millivolt output unit is further connected to a millivolt power supply generating and setting unit which acts on the millivolt. With the invention, in the construction and delivery of a steel rail potential limiting apparatus for a power grid of a rail traffic system as well as in the maintenance of the apparatus, it is possible to obtain relevant accurate electric characteristic parameters about the apparatus so as to provide effective data for the safety of concerned people around a rail transportation facility.
Owner:THE 1ST ENG CO LTD OF CHINA RAILWAY CONSTR ELECTRIFICATION BUREAU GRP
High pressure bidirectional miniature electric gas pump
ActiveUS20150322936A1Easy to carryOvercome defectsPump testingPositive displacement pump componentsElectrical batteryGas cylinder
Provided is a multi-range field full-automatic pressure and electric signal calibrating instrument, comprising: control components such as a shell, a power switch, multiple-interfaces, a display, a keyboard, and a gas pressure generating unit, a power supply unit, a pressure detecting unit, a gas pressure control unit and an electric signal detecting unit; the pressure output end of the pressure control unit is in parallel connection with pressure joints which are used for installing multiple pressure standard meters and detected meters with different ranges; the pressure control unit is in signal connection with the pressure standard meters; the electric signal detecting unit is in signal connection with the pressure control unit and the detected meters; the power supply unit can supply power by batteries. The calibrating instrument does not need to be externally connected with a gas cylinder and an alternating current power supply and can automatically generate a gas pressure and generate an accurate standard pressure; the design of the multi-range pressure standard meter can be suitable for various detected meters; the double detection and calibration for pressure and electric signals can be implemented; the weight and volume of the instrument are small; and the multi-range field full-automatic pressure and electric signal calibrating instrument is convenient to carry in the field and can carry out automatic calibration on various field pressure instruments.
Owner:BEIJING CONST INSTR TECH INC
Sampling method for particle-size test of ultrahigh-pressure insulating oil
InactiveCN104132827AEasy to sampleNo pollution in the processWithdrawing sample devicesBottleClean environment
The invention provides a sampling method for the particle-size test of ultrahigh-pressure insulating oil. The sampling method is characterized by adopting the following steps: (1) a latex pipe with a glass pipe at the tail end is connected to a sampling valve, the sampling valve is opened for washing a sampling pipeline; (2) a special sampling bottle for the particle size test is arranged on a working platform surface in a clean environment, a sealing cover of the sampling bottle is removed, a clean cover with a hole at the top part seals and covers the sampling bottle, and the glass pipe is inserted to the bottom part of the sampling bottle from the hole in a sealing manner; (3) the sampling valve is opened, an oil sample flows into the sampling bottle to the position 0.5-1cm away from the sealing cover of the sampling bottle, the sealing cover is lifted to the bottom surface of the sealing cover and is slightly higher than a bottle opening of the sampling bottle, so that the oil sample overflows but does not come into contact with the bottom surface of the sealing cover and the overflowing of the oil sample is maintained for 3-8S; (4) the clean cover with the glass pipe is taken away, and then the clean sealing cover of the sampling bottle covers the sampling bottle, thus finishing the sampling. The sampling method provided by the invention has the beneficial effects that the operation is simple, the ultrahigh-pressure insulating oil can be sampled conveniently, no pollution is caused in the sampling process of the insulating oil, and further the accuracy of a detection result is guaranteed.
Owner:STATE GRID CORP OF CHINA +1
Remotely controlled continuous casting billet nail jet device and method
InactiveCN103111594AEnsure safetyReduce lossCasting parameters measurement/indication devicesRemote controlPower switching
The invention discloses a remotely controlled continuous casting billet nail jet device and method, which belong to the technical field of continuous casting for steelmaking. The method is characterized by comprising the following steps of: fixing the nail jet device on one side of the to-be-measured surface of a continuous casting billet before start according to measurement requirements, and vertically aligning a guide hole in the front end of the nail jet device with the to-be-measured surface of the continuous casting billet; connecting a power supply of the nail jet device within five minutes before jet, wherein at the moment, operators and field staff withdraw to a safety zone; switching on a power switch of a remote controller within one minute before jet, counting down and waiting a jet instruction; and pressing down a jet button on the remote controller when the jet time is reached, and triggering the nail jet device to make special steel nails enter the billet. The device can perform accurate remote control operation on the continuous casting billet nail jet, and has the characteristics of scientific design, high safety, low billet loss and the like. The method is easy and feasible, and can realize safe and accurate operation according to different position measurement requirements.
Owner:UNIV OF SCI & TECH BEIJING
A scalable modular multi-channel off-line programmer
The invention provides an expandable modular multi-channel off-line programmer. The expandable modular multi-channel off-line programmer comprises an off-line programmer main board and N off-line programmer daughter boards, wherein N is an integer larger than 1.The off-line programmer daughter boards are fixed to the off-line programmer main board in a pluggable mode. The N off-line programmer daughter boards are identical independent modules, are each provided with an independent first USB interface and an independent first SWD interface and can independently complete off-line programming of Flash3 memories of target chips and updating of source programs. The off-line programmer main board comprises a second USB interface and N second SWD interfaces, the second USB interface is connected with the first USB interfaces of the off-line programmer daughter boards, the second SWD interfaces are connected with the second SWD interfaces of the off-line programmer daughter boards, and through the off-line programmer main board, the multi-channel off-line programmer can complete transmitting and updating of source programs and off-line programming of target chips. The expandable modular multi-channel off-line programmer can break through the limitation of the number of off-line programming channels, and thus the requirement for volume production can be met in the large-scale chip programming process; due to the fact that all channels are relatively independent, module maintenance and replacement can be conveniently carried out if one channel fails.
Owner:GIGADEVICE SEMICON (BEIJING) INC +1
Portable turnout operation device and turnout operation method
ActiveCN113942541AThe overall structure is simple and reliableLight structureElectric devices for scotch-blocksControl engineeringAlternating current
The invention provides a portable turnout operation device, and belongs to the technical field of railway construction engineering. According to the technical scheme, the portable turnout operation device comprises a power supply circuit and a turnout switching circuit, the power supply circuit comprises an alternating current power supply interface and a bridge rectifier Q1, the two input ends of the bridge rectifier Q1 are AC1 and AC2 respectively, and the two output ends of the bridge rectifier Q1 are DC1 and DC2 respectively; the turnout switching circuit comprises a double-pole double-throw switch K1, a positioning indication lamp DB, a reverse indication lamp FB, a four-pole double-throw switch K2 and external terminals X1-X4. The switch combination of the K1 and the K2 corresponds to the communication relation between the external terminals X1-X4 and AC1, AC2, DC1 and DC2. The external terminals X1-X4 respectively correspond to corresponding terminals on a turnout switch machine, and the switch combination comprises a positioning action, an anti-position action, a positioning expression and an anti-position expression. The circuit has the advantages of being simple and reliable in structure, small in size and easy to carry, debugging whether action circuit switching of the turnout switch machine is good, and indicating whether the circuit is correct.
Owner:中铁十四局集团电气化工程有限公司
Charging hydraulic tool
ActiveCN105459031ALess investmentEasy to carry on sitePortable power-driven toolsEngineeringMechanical engineering
The invention provides a charging hydraulic tool which comprises a handle, a hydraulic driving part and an end part structure, wherein the end part structure comprises a working head; a replaceable working component is arranged on the working head; the charging hydraulic tool further comprises a connecting mechanism used for connecting the hydraulic driving part with the end part structure; and the connecting mechanism adopts a rotatable component, and can enable the end part structure to rotate by 360 degrees while transmitting a jacking action force of the hydraulic driving part. The charging hydraulic tool can realize multiple operation functions, is convenient to use, and has a wide application prospect, and moreover, the end part structure can rotate by multiple angles.
Owner:STATE GRID ZHEJIANG HANGZHOU CITY FUYANG DISTRICT POWER SUPPLY CO LTD +2
Device and method for detecting dissolved oxygen in water
InactiveCN107144665AQuickly learn and masterEasy to carry on siteMaterial analysis by observing effect on chemical indicatorChemical analysis using titrationWater qualityEngineering
The invention discloses a device and method for detecting dissolved oxygen in water, comprising bottle A, bottle B, bottle C, water sample collection buffer barrel and four-way connecting pipe, characterized in that the bottle A and bottle B are vacuum state, bottle A, bottle B and bottle C are respectively connected to the top of the water sample collection buffer barrel through four-way connecting pipes, and the water sample collection buffer barrel is connected to the sampling port. By filling the test solution in advance and performing vacuum treatment, it is easy to carry and quickly detect on-site. It reduces the errors caused by man-made and experimental instruments during the operation, and can directly read the dosage and accurately calculate the dissolved oxygen content. Using the device and detection method to measure dissolved oxygen in water is convenient for on-site detection, simple to operate, accurate in reading, and has strong ability to resist water quality interference when detecting turbid water quality.
Owner:E TECH ENERGY TECH DEV CORP
On-site full-automatic pressure calibrator
ActiveCN102305690BEasy to carryReduce weightFluid pressure measurementPositive-displacement liquid enginesGas cylinderDisplay device
Owner:BEIJING CONST INSTR TECH INC
Contact type automatic ice and snow depth measuring method
InactiveCN1186587CReliable dataEasy to carry on siteMechanical thickness measurementsElectrical/magnetic thickness measurementsPhysical hard workResting time
Owner:DALIAN UNIV OF TECH
Dielectric loss testing device for extra-high voltage large-capacitance equipment
PendingCN110244131ASafe and stable operationReduce volumeDielectric property measurementsPenicillinHigh voltage igbt
The invention discloses a dielectric loss testing device for extra-high voltage large-capacitance equipment, and the device mainly comprises a frequency conversion module, a boosting module and a dielectric loss testing module, and the frequency conversion module, the boosting module and the dielectric loss testing module are sequentially connected in series; and wherein the dielectric loss testing module adopts a penicillin bridge, a bridge arm CA is an equivalent circuit formed by connecting a tested product CX and a tested product RX in parallel or in series, a bridge arm CB is an air standard capacitor CN, a bridge arm AD is a non-inductive variable resistor R3, a bridge arm BD is formed by connecting a non-inductive resistor R4 and a variable capacitor C4 in parallel, and a galvanometer is connected between AB. The frequency conversion module is used for carrying out frequency conversion on alternating current and then the boosting module is used for boosting the alternating current to 10 kV. The dielectric loss testing device for extra-high voltage large-capacitance equipment is small in size, light in weight and convenient to carry on site, and when an extra-high voltage CVT medium-voltage capacitor is used for a medium loss test, alternating-current 10 kV voltage can be applied to the tested product, so that the requirements of regulations are met, and the safe and stable operation of the extra-high voltage CVT is guaranteed.
Owner:STATE GRID ANHUI ULTRA HIGH VOLTAGE CO +1
A support device used in the beveling stage of a ship plate and its application method
ActiveCN110052848BEasy to carry on siteEasy to installWelding/cutting auxillary devicesAuxillary welding devicesStructural engineeringPassenger vessel
The invention discloses a support device used in the beveling stage of a ship plate. The support device includes: a support platform, which is arranged close to the edge of the ship plate and is used to support a cutting machine. The support platform is close to the A fixing device is connected to one side of the edge of the ship board, and the fixing device is used to connect the support platform to the ship board and keep the upper surface of the support platform coplanar with the upper surface of the ship board ; and the slide bar. The beneficial effect of the invention is to avoid the problem of poor straightness when cutting the end, and it is easy to carry, effectively reducing the safety problem caused by the hand-held cutting machine when the semi-automatic cutting machine cuts to the end of the plate, and is widely applicable to various large and medium-sized containers Ships, LNG carriers, LPG carriers, chemical tankers, ro-ro ships, floating storage tankers, product tankers, crude oil tankers, bulk carriers, passenger ships, special work ships, military ships and military auxiliary ships.
Owner:HUDONG ZHONGHUA SHIPBUILDINGGROUP
Insulation box for transformer DC resistance tester
PendingCN108982923AEasy to carryExtended service lifeResistance/reactance/impedenceMeasurement instrument housingElectrical resistance and conductanceSocial benefits
The invention discloses an insulation box for a transformer DC resistance tester. The insulation box comprises a box body formed by hinging a box base and a box cover; a heating plate, an intelligenttemperature controller and an electric leakage protection power supply plug, wherein the intelligent temperature controller and the electric leakage protection power supply plug are arranged at adaptive positions in the box cover. The transformer DC resistance tester is arranged in the box base, and at least one heating plate is arranged at the adaptation position of the side wall adjacent to thetransformer DC resistance tester. The electric leakage protection power supply plug, the intelligent temperature controller and the heating plate are connected in series through a wire. According to the requirement for the running environment temperature of the instrument, the temperature adjusting is carried out, the heat preservation in the box can be carried out, the temperature adjusting speedis high, the size is small, and the carrying is convenient, and time and labor are saved. The trouble brought to the work due to the environment is thoroughly solved. A lot of purchasing instrument funds are effectively reduced for enterprises, and good economic and social benefits are achieved.
Owner:YINGKOU ELECTRIC POWER SUPPLY COMPANY OF STATE GRID LIAONING ELECTRIC POWER SUPPLY +1
Full-automatic steel rail accurate grinding machine
InactiveCN109877687ASimple structureReduce weightGrinding feed controlGrinding machinesEngineeringGrinding wheel
The invention provides a full-automatic steel rail accurate grinding machine which comprises a fixing frame and a grinding device arranged on the fixing frame. The fixing frame comprises a fixing transverse frame and fixing vertical frames, the grinding device comprises a grinding motor, a rotating shaft of the grinding motor is connected with a grinding wheel, a moving belt is arranged between the two moving vertical frames, the moving belt is moved left and right through a reciprocating motor, the grinding wheel is connected with a feed motor through a speed reduction moving transmission device, the fixing vertical frames are provided with a control processor for controlling the grinding motor, the feed motor and the reciprocating motor, and the two ends of the moving belt are provided with proximity switches. According to the automatic steel rail accurate grinding machine, the structure is simple, the components are clear in division of work, the weight is low, workers can carry themachine on site, on-site carrying is convenient, a grinding curve is automatically generated through an eddy current sensor, a temperature sensor and the control processor, the grinding path is controlled, the grinding speed is high, grinding precision is high, the steel rail connector maintenance speed can be improved, and steel rail connector maintenance quality is ensured.
Owner:成都瑞威交通科技有限公司
Electronic mutual inductor test system and test method
The invention discloses an electronic mutual inductor test system and a test method. The electronic mutual inductor test system comprises a standard device, a signal conversion device, an error measuring device, a test power supply, a merging unit and a tested electronic mutual inductor, wherein the standard device is used for providing a standard signal serving as a test reference; the signal conversion device is used for receiving the standard signal and converting the standard signal into an analog signal which can be acquired by the error measuring device; the test power supply is used for outputting a primary voltage and a primary current for test use; the merging unit is used for receiving a digital signal output by the tested electronic mutual inductor and processing the digital signal; and the error measuring device is used for receiving the standard signal output by the signal conversion device and the digital signal output by the merging unit, and acquiring the ratio difference and the phase difference of the tested electronic mutual inductor. The electronic mutual inductor test system is particularly suitable for a field error test of the electronic mutual inductor, andhas the advantages of convenient test work, high reliability, small equipment volume, light weight, high test result accuracy and the like.
Owner:HEFEI POWER SUPPLY COMPANY OF STATE GRID ANHUI ELECTRIC POWER +1
Distance-adjustable contact method detection device
PendingCN110702781AImprove efficiencyFull Coverage GuaranteedMaterial magnetic variablesAssembly disassemblyMagnetic poles
The invention discloses a distance-adjustable contact method detection device, which comprises a contact device I, a contact device II, a connecting device and a handle device, wherein the contact device I and the contact device II are connected by means of the connecting device, and the distance between the contact device I and the contact device II can be freely adjusted by means of the handle device installed on the contact device I and the contact device II; the contact device I and the contact device II are each provided with a contact rod by means of a fixed supporting device and a sliding supporting device, the contact rods are externally insulated magnetic pole rods, and the fixed supporting device and the sliding support device generate a magnetic field on the surface of a workpiece for detection after being electrified. The distance-adjustable contact method detection device is compact in structure, assembled in an accessory mode, convenient to assemble and disassemble, and convenient to carry on site. The distance-adjustable contact method detection device has the advantages that the distance can be flexibly adjusted, is convenient in adjustment during field detection, can realize single-person operation, sprays magnetic suspension while conducting magnetization, and improves the efficiency.
Owner:SHANDONG MECHANICAL ENG TESTING CO LTD
Device and method for quickly evaluating paraffin inhibition rate of paraffin remover and inhibitor for field use
The invention discloses a device and a method for quickly evaluating the paraffin inhibition rate of a paraffin remover and inhibitor for field use. The device comprises a self-heating tank (1), a sample bottle (2), a spiral glass coil (3), a liquid collection graduated test tube (4) and a support (5), the sample bottle (2) is fixed at the top of the support (5), the spiral glass coil (3) is fixed to the middle position of the support (5), the liquid collection graduated test tube (4) is fixed at the bottom of the support (5), the self-heating tank (1) is also fixed at the bottom of the support (5), the lower end of the sample bottle (2) is connected with the spiral glass coil (3), and the spiral glass coil (3) is arranged right above the liquid collection graduated test tube (4).
Owner:PETROCHINA CO LTD
Preparation method and application of capillary array for rapid occult blood detection
The invention relates to a preparation method and application of a capillary array for rapid occult blood detection. The capillary array realizes rapid, sensitive and high-flux visual detection for occult blood under a capillary phenomenon of automatic suction of a sample according to the development reaction that hemoglobin in the occult blood catalyzes an encapsulation substrate. Firstly, a porous hydrogel-encapsulated peroxidase catalytic reaction substrate is modified on the inner wall of a capillary, thus preparing the visually colorimetric capillary array to automatically suck the sample under the capillary action of the capillary; the capillary can be enabled to display blue colors in different degrees according to the development reaction that the hemoglobin in the occult blood sample catalyzes the porous hydrogel-encapsulated peroxidase catalytic substrate on the inner wall, so that the hemoglobin content of the sample can be directly, quickly, quantitatively or visually determined; and the preparation method has the characteristics of rapidness, sensitivity, high flux, small use amount of the sample, low cost, visualization and the like.
Owner:QUFU NORMAL UNIV
Footprint extraction device based on linear scanning imaging mode
PendingCN114010187ARealize image scanningImprove the extraction effectTelevision system detailsColor television detailsLinear ScanWave band
The invention discloses a footprint extraction device based on a linear scanning imaging mode, the device comprises a light splitting optical path imaging system and a combined light source, the combined light source provides a multi-angle and multi-band light source for the light splitting optical path imaging system; the light splitting optical path imaging system comprises an imaging surface, a plurality of reflectors and at least one dichroic light splitting sheet, and light irradiates the reflectors from the imaging surface and then enters the imaging device through the dichroic light splitting sheet. According to the invention, through light distribution of the light sources with different wavebands, footprint image scanning in different view fields can be realized, and the footprint extraction effect and integrity are greatly improved.
Owner:DALIAN EVERSPRY SCI & TECH
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