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74results about How to "The data result is accurate" patented technology

Apparatus for high-temperature creep test and stress relaxation test of rubber elastomer

The invention relates to an apparatus for a high-temperature creep test and a stress relaxation test of a rubber elastomer. A stress loading part is positioned right above a temperature control part; a clamp comprises an upper pressing plate and a lower pressing plate which correspond to each other in the vertical direction, wherein the upper pressing plate is horizontally suspended in a high-temperature test box by virtue of a connecting rod, and the lower pressing plate is movably installed in the high-temperature test box; an upper crossbeam is positioned above a lower crossbeam; two ends of the upper crossbeam are fixed on a side plate, and two ends of the lower crossbeam are fixed on the side plate by virtue of a slide apparatus which can slide up and down along the side plate and can be positioned; a straight shaft vertically penetrates through the upper crossbeam, the upper end of the straight shaft is fixedly provided with a weight disc, and the lower end of the straight shaft pushes against the upper surface of the lower crossbeam; a pressure sensor is connected with a connecting rod penetrating through the top of the high-temperature test box; a displacement sensor is fixed on the side plate; and a drive part comprises a ball screw pair consisting of a ball screw and a bearing, the bearing is installed on a base, the ball screw is engaged with the bearing, and the ball screw is detachably connected with the lower crossbeam by virtue of a fixed bracket.
Owner:ZHEJIANG UNIV OF TECH

Tensile bond strength testing method

The related tension and bond strength testing method for adhesive and polyphenyl plate comprises: cutting target plate into cubic block as sample, coating adhesive on one surface and then another surface, curing for 10-20day; dipping into water for 40-60day, taking out to dry for 2h; then, sticking sample surface with adhesive to smooth steel plate, forcing tensile force to test its strength. This invention has reliable principle, high accuracy and precise result.
Owner:QINGDAO TECHNOLOGICAL UNIVERSITY

Automobile tyre fixture

The invention discloses an automobile tyre fixture, which comprises a fixture body, wherein two telescopic rods are arranged inside the clamp body, the two telescopic rods extend outwards or contract inwards from both ends of the fixture body simultaneously, stroke lengths of the two telescopic rods extending outwards or contracting inwards are identical, the end heads of the two telescopic rods are symmetrically provided with tyre positioning mechanisms, each tyre positioning mechanism comprises a positioning plate and a positioning shaft perpendicularly connected with the positioning plate, each positioning plate is fixedly connected with the end head of the corresponding telescopic rod, each positioning shaft is sleeved with a tread connecting part in contact connection with a tread of a tyre, each positioning plate is further provided with a measuring equipment connecting part, and the measuring equipment connecting parts on the end heads of the two telescopic rods are positioned on the same horizontal plane. The automobile tyre fixture is simple in structure and convenient to operate, realizes the effect of taking the tyre of an automobile wheel as a benchmark, facilitates subsequent measurement equipment to measure an automobile wheel toe-in, ensures that data results of other subsequent measurement works are real and precise, and improves the subsequent adjustment precision of the automobile wheel toe-in.
Owner:NANJING WOYU MECHANICAL & ELECTRICAL EQUIP CO LTD

Big-data analysis system

The invention relates to a big-data analysis system. According to the system, various data collection manners can be utilized to collect data; an encrypted data signal is formed by the collected datathrough encryption processing; the encrypted data signal is transmitted to a data storage module through a data transmission module; the encrypted data signal is transmitted to a data analysis serverby the data storage module; and in the data analysis server, firstly, the encrypted data signal is decrypted through a data decryption module, detection, marking, classification and analysis are sequentially carried out on a decrypted data signal through a data detection module, a data marking module, a data classification module and a data analysis module, then a data analysis result is obtained,the data analysis result obtained by the data analysis module is evaluated through an evaluation module, and finally, deviation correction is carried out on an unqualified data analysis result through a correction module. Accuracy of the big-data analysis system is improved.
Owner:北京天平检验行有限公司

Unmanned plane-based atmosphere pollution data acquisition device

The invention discloses an unmanned plane-based atmosphere pollution data acquisition device. Multi-directional fine sampling tubes arranged in the invention effectively agree with the diversity of the advance route of an unmanned plane, and guarantee the three-dimensional sampling when the orientation of the unmanned plane is uncertain in order to realize abundant samples and guarantee the first step of accurate data, various detectors are combined to carry out omnibearing analysis of the samples in order to prevent damages of too many fine particles to other detectors and obtain comprehensive, visual and accurate data results, a particle detector which is a common PM2.5 detector, data detected by the detectors in random detection working environment are most accurate, the peripheral surface of an unmanned plane body is provided with a solar cell panel, and a solar cell is arranged to make the unmanned plane continuously work in sufficient sunshine environment and store electric energy for realizing certain endurance working ability in cloudy or rainy days. The device has reasonable design, and has better effects than traditional devices.
Owner:贵州点点云数字技术有限公司

Method for detecting dynamic queue length of vehicles

The invention discloses a method for detecting the dynamic queue length of vehicles. The method comprises the following processes traveling tracks of the vehicles in a detection area are tracked, thepositions and speed of the vehicles are obtained, and zoning management is conducted by using a lane as a unit; the speed of the vehicles and the distance between the two adjacent vehicles in the samelane are compared with a set dynamic queue speed threshold and dynamic queue distance threshold, and whether the vehicles belong to a dynamic queue or not is determined; and the dynamic queue lengthis calculated according to dynamic queues of lanes. According to the method for detecting the dynamic queue length of the vehicles, track tracking detection is conducted on the vehicles in the lanes,the length of the queuing vehicles in the lanes are dynamically calculated, so that the data result is more actual and accurate, and an accurate basis is provided for traffic intelligent management; and the method can further calculate the queuing length of the lanes, and the queuing length is output according to the lanes.
Owner:NANJING HURYS INTELLIGENT TECH CO LTD

Torsional strength testing torsion testing machine

The invention relates to a torsional strength testing torsion testing machine, which comprises a rack and an operation table, wherein the rack is provided with the operation table and a guide rail, the guide rail is provided with a test operation table, the test operation table is provided with an operation rod and an emergency stop component, an opening / closing rod is arranged beside the operation rod, positioning blocks are arranged between the test operation table and the guide rail and are positioned on the bottom portion of the test operation table, and the positioning block is made from an alloy steel material. According to the present invention, the top portion of the guide rail is provided with the baffle, such that the distance between the clamping jaw and the clamping member can be well controlled, the impact of the clamping jaw on the clamping member due to the over high force applying is prevented, the use safety of the clamping jaw and the clamping member is ensured, and the damage on the clamping jaw and the clamping member is avoided; and the hand wheel drives the screw rod to control the movement of the clamping jaw, such that the movement speed is uniform, and the torsional strength testing result of the electric cable is accurate.
Owner:JIANGSU TIANHUI TESTING MACHINE CO LTD

Device and method for testing frost heaving parameter of soil under standard compaction work

The invention discloses a device and method for testing a frost heaving parameter of soil under standard compaction work. The device includes a steel base plate; a separable iron tube is arranged on the steel base plate, a soil sample is in the separable iron tube, and an organic glass tube is arranged on the periphery of the separable iron tube; the separable iron tube, the steel base plate, the organic glass cylinder and a lantern ring are fastened through a fastening device; a water temperature sensor is arranged in the soil sample, and a water temperature data collector is connected with on the outside; a displacement sensor is arranged above the soil sample, and of a displacement data collector is connected on the outside; the two data collectors are connected to a main control computer; and the inner wall of the organic glass tube is coiled with a copper pipe, and the organic glass tube is connected to a cycle refrigeration apparatus through a plastic hose. The device can test frost heaving ratio, moisture migration, temperature transfer of the soil sample under standard compaction work and various conditions, and can quickly remove the frozen soil sample, and observe the soil surface and dissected internal freezing texture, so as to obtain the change rule of frost heaving ratio, and rule of moisture migration and heat transfer.
Owner:CHANGAN UNIV

Device and method for testing ultrasonic vibratory rock-breaking effective work

The invention discloses a device and a method for testing ultrasonic vibratory rock-breaking effective work and belongs to the technical field of ultrasonic vibratory percussive drilling in geologicalengineering. The device comprises an automatic pressurization system, an ultrasonic vibration system and a temperature measurement system, wherein a hydraulic control cabinet controls the automatic pressurization system to work, so that an amplitude-change pole in the ultrasonic vibration system descends and passes through a working hole positioned in the center of a thermal cover in the temperature measurement system, and an ultrasonic generator is started; and the ultrasonic generator transmits a signal to an ultrasonic transducer, the ultrasonic transducer receives the signal and convertsthe signal into mechanical vibration to be transferred to the amplitude-change pole so as to apply constant pressure to a rock sample, and then an experiment is conducted. According to the device andthe method disclosed by the invention, work converted into heat energy in the ultrasonic vibratory rock-breaking process is measured by utilizing a temperature difference of drilling fluid before andafter the experiment, and the effective work of the broken rock is determined according to total work of the ultrasonic vibration system, so that a relation between the rock breaking energy consumption and the breaking effect is achieved. The device and the method have important and profound significances for researching the ultrasonic vibratory rock-breaking theory and method and developing the drilling tool.
Owner:JILIN UNIV

Agitating test device

The invention provides an agitating test device, belongs to the technical field of pharmaceutical chemicals, and the agitating test device is used for solving the problems that the existing agitating test has no special device, is more inconvenient and has inaccurate detection result and large errors. The agitating test device comprises a supporting frame and a vertically-arranged agitating input shaft; the agitating input shaft is positioned on the supporting frame; the lower end part of the agitating input shaft is fixedly connected with a connecting piece which is fixedly connected with a ventilating agitating rod assembly; the supporting frame is fixedly connected with a motor; the rotary shaft of the motor is connected with the upper end of the agitating input shaft; and the agitating test device further comprises an air inlet mechanism, an air flow detection element and a rotary speed control unit; the air inlet mechanism is provided with an air inlet pipe and can be communicated with the ventilating agitating rod assembly; the air flow detection element can detect an air flow state in the air inlet mechanism; and the rotary speed control unit can control the high and low rotary speeds of the motor. The agitating test device has the advantages of simplicity and convenience for operation, labor-saving property, accurate detected data result and smaller errors.
Owner:ZHEJIANG CHENGXIN PHARMA & CHEM EQUIP

Scale identification method and device and computer storage medium

The invention discloses a scale identification method and device and a computer storage medium. The method comprises the steps of obtaining an original scale image; carrying out contour fitting processing on the original scale image to obtain a fitted scale image; acquiring boundary scale data corresponding to the fitting scale image according to the fitting scale image; obtaining pointer position data, corresponding to the fitting scale image, of a pointer; performing modeling processing on the fitting scale image according to the pointer position data and the boundary scale data to obtain a target scale image; and calculating a pointer reading according to the target scale image. The method effectively solves the problem that in the prior art, the error rate is high due to the fact that a pointer type scale instrument directly takes an obtained oval scale instrument as a circle to calculate the pointer reading, and the recognition accuracy of a pointer type scale instrument recognition machine on the pointer reading is effectively improved.
Owner:BEIJING SHIHE TECH CO LTD

Gravity-magnetic interface inversion-based geodetic heat flow estimation method

The invention discloses a gravity-magnetic interface inversion-based geodetic heat flow estimation method. The method includes the following steps that: (S1) inversion is carried out on gravity and magnetic data through an improved Parker-Ordenburg interface inversion algorithm, so that a Curie surface and a Moho surface can be obtained, wherein the Curie surface and the Moho surface are calculated through inversion algorithms described in the descriptions of the invention; and (S2) a geothermal target area is evaluated through the Curie surface and the Moho surface. According to the inversionalgorithms of the Curie surface and the Moho surface, h0 is the average depth of an upper interface and lower interface; Delta h2 and Delta H1 are the difference values of the upper interface and thelower interface, and the average depth; s is an iteration step length; rho0 is the residual density of an earth surface geological medium; omega is a circular wave number; F [] is the Fourier transform of a gravity anomaly; Delta g is the gravity anomaly; G is a gravitation constant; a is the index of the change of density along with depth; Delta z is a magnetic anomaly; mu 0 is vacuum magnetic conductivity; and b is the index of the change of magnetic susceptibility along with depth. With the method of the invention adopted, the precision and resolution of interface inversion can be enhanced, and calculation efficiency is improved. The method has very high practical value and promotional value.
Owner:JILIN UNIV

Radar-based vehicle queuing length detection method and system

The invention provides a radar-based vehicle queuing length detection method and system. The method comprises the steps of obtaining the coordinates and instantaneous speed of a target vehicle at an intersection in a preset coordinate system, and the preset coordinate system being built with a radar installed at the intersection as an original point; determining a lane where the target vehicle is located and a current acceleration based on the coordinates and the instantaneous speed of the target vehicle; judging the state of the lane according to the lane where the target vehicle is located and the current acceleration; and if the lane is in the stop state, recording a tracked and lost target in the lane, and adding the lost target into a queuing area of the lane to calculate the queuing length of the lane. According to the method, the acceleration is used for judging the state of the intersection at the moment, meanwhile, the defect that static and low-speed targets are difficult to recognize by a radar is utilized, tracking loss of vehicles serves as key information to achieve calculation of the vehicle queuing length, and the data result is more real and accurate.
Owner:巍泰技术(武汉)有限公司

Method for measuring critical voltage of solid-liquid interface slip under electric field

The invention discloses a method for measuring a critical voltage of a solid-liquid interface slip under an electric field, and the method can be used for measuring the critical voltage when the solid-liquid interface slip occurs in the presence of a frictional force under the electric field. The method for measuring the critical voltage is as follows: using a contact angle measuring instrument toobtain advancing angle values of a droplet to be tested under different voltages using an increasing method to obtain apparent contact angle values under different voltages, calculating a maximum solid-liquid interface acting force and a maximum solid-liquid interface friction force according to a formula, and comparing the maximum solid-liquid interface acting force and the maximum solid-liquidinterface friction force to obtain the critical voltage when the solid-liquid interface slip occurs, when the solid-liquid interface acting force is equal to the maximum solid-liquid interface friction force for the first time, the corresponding voltage is the critical voltage of the solid-liquid interface slip. The method is simple in test, data required for the whole test can be measured by thecontact angle measuring instrument, the operation is simple, and test results are accurate.
Owner:四川民惠科技有限公司

Experimental device and experimental method for simulating frost heaving of accumulated water in tunnel lining

The invention belongs to the technical field of frost heaving experimental equipment, and particularly relates to an experimental device and an experimental method for simulating frost heaving of accumulated water in a tunnel lining. The experimental device comprises a simulation lining and simulation surrounding rock which are integrally located in a frame, a groove body for containing accumulated water is formed in the simulation lining, the simulation surrounding rock seals the groove body, and a distance measurer is arranged between the simulation surrounding rock and the simulation liningand used for reflecting the swelling amount of accumulated water frost heaving in the groove body. A pressure sensor is arranged at the bottom of the tank body and used for feeding back expansion force of accumulated water frost heaving in the tank body. The distance measurer and the pressure sensor are electrically connected with the data acquisition equipment. The experimental method using theexperimental device can well simulate the tunnel lining accumulated water frost heaving process, real-time change information is obtained, data processing is carried out in combination with processingequipment, and the formed test result has great reference value for engineering quality.
Owner:HENGSHUI ZHONGTIEJIAN ENG RUBBER +1

High speed test rotating table wireless data acquisition instrument system

The invention discloses a high speed test rotating table wireless data acquisition instrument system, and relates to the technical field of test and electronic test and data acquisition. The high speed test rotating table wireless data acquisition instrument system comprises a wireless unvarnished transmission device, a detection device, a DSP control module, a data acquisition module, a sensor, adata storage module, a voltammeter, a power supply and mobile electronic equipment. The detection device is installed and electrically connected on the sensor. The sensor is electrically connected with the data acquisition module. The data acquisition module is electrically connected with the DSP control module. The DSP control module is electrically connected with the data storage module and thewireless unvarnished transmission device. The wireless unvarnished transmission device is wirelessly connected with the mobile electronic equipment. The power supply is electrically connected with the wireless unvarnished transmission device, the detection device, the DSP control module, the data acquisition module, the sensor and the voltammeter. The high speed test rotating table wireless dataacquisition instrument system is simple in structure, small in size, complete in function, flexible in operation mode, high in accuracy and accurate in obtained data.
Owner:芜湖博高光电科技股份有限公司

System for testing optical thin film damage threshold

The invention relates to a system for testing optical thin film damage threshold. The system comprises a pulse laser, an attenuator, a converging lens, a window mirror, a beam splitting mirror, a total reflection mirror, an energy meter, a first image collecting device and a second image collecting device, wherein light beams emitted from the laser transmit to the converging lens after attenuation by the attenuator, the light beams converged by the converging lens sequentially pass through the window mirror and the beam splitting mirror for transmission and are reflected by the total reflection mirror and then enter into the optical thin film to be tested, the light beams reflected by the window mirror enter into the first image collecting device, the light beams reflected by the beam splitting mirror enter into the energy meter, and the second image collecting device collects image information on the surface of the optical thin film to be tested. The system for testing optical thin film damage threshold is accurate in testing result, easy to install and adjust, and wide in application.
Owner:BEIJING GK LASER TECH

Direct-current motor endurance tester for new energy bicycle

The invention discloses a direct-current motor endurance tester for a new energy bicycle. The direct-current motor endurance tester comprises a main rack body, a fixed motor clamp, a load simulator and a road surface simulator. The load simulator consists of a jacking cylinder and a pressure sensor. The fixed motor clamp includes a fixed rod and a support frame; the middle end of the fixed rod isconnected to the support frame in a rotation manner; and one end of the fixed rod is connected with a to-be-tested motor and the other end is connected with the pressure sensor fixedly. The jacking cylinder is able to apply a load to the to-be-tested motor. The road surface simulator consists of a transmission wheel, an axle, a support column and a magnetic powder brake; the axle is connected to the support column in a rotation manner; the transmission wheel is fixedly connected to the axle; the transmission wheel is abutted against a tire; and the magnetic powder brake is arranged at one endof the axle and is able to provide twisting forces in different directions for the axle, thereby simulating various road surface situations. Therefore, the working environment of the actual working ofthe motor can be simulated and the accuracy of the test result can be improved.
Owner:JINHUA ZHUOYUAN IND

Stone-like coating detection method

The invention discloses a stone-like coating detection method. The stone-like coating detection method comprises the following steps of a: evenly applying a transparent undercoat on three experiment boards under the environments of the normal pressure and the temperature of 20-30 DEG C, naturally air-drying at the normal temperature, and evenly spraying a stone-like coating on the dry undercoat on the experiment board; b: maintaining the experiment boards sprayed with the stone-like coating in the step a for 16-20 hours under the environments of low temperature and high humidity, wherein the environment temperature is 3-8 DEG C, and the relative humidity is 70-90% RH; c: vertically placing the experiment boards maintained in the step b in a water flushing apparatus under the environments of the normal pressure and the temperature of 20-30 DEG C, washing the experiment boards with water flow for 2-6 hours at the flow velocity of 100-200 ml / min, wherein the temperature of the water flow is 20-30 DEG C; d: placing the experiment boards washed in the step c in a blast apparatus under the environments of the normal pressure and the temperature of 20-30 DEG C, and air-drying the experiment boards for 1-3 hours at the air speed of 2.5-4.5 m / s; and e: recording the detection result of the experiment boards air-dried in the step d. The stone-like coating detection method can rapidly and accurately detect the properties of low-temperature high-humidity water-white resistance.
Owner:佛山市顺德区巴德富实业有限公司

Tensile bond strength testing method

The related tension and bond strength testing method for adhesive and polyphenyl plate comprises: cutting target plate into cubic block as sample, coating adhesive on one surface and then another surface, curing for 10-20day; dipping into water for 40-60day, taking out to dry for 2h; then, sticking sample surface with adhesive to smooth steel plate, forcing tensile force to test its strength. This invention has reliable principle, high accuracy and precise result.
Owner:QINGDAO TECHNOLOGICAL UNIVERSITY

Experimental device and experimental method for measuring roadway ventilation thermal resistance in mine fire period

The invention discloses an experimental device and an experimental method for measuring roadway ventilation thermal resistance in a mine fire period. The experimental device comprises a ventilator, afirst steel pipe, a combustion furnace, an electric heating pipe, a holding furnace, an inlet wind speed sensor, an inlet pressure sensor, an inlet temperature and humidity sensor, a second steel pipe, an outlet wind speed sensor, an outlet temperature and humidity sensor, an outlet pressure sensor, a pressure acquisition module, a temperature and humidity acquisition module, a wind speed acquisition module, a data storage module and a temperature rise control module. The experimental method for measuring roadway ventilation thermal resistance in the mine fire period comprises the steps of: step 1, establishing the experimental device; step 2, checking whether the connection of the experimental device is normal, and checking sealing performance; step 3, igniting combustibles, and storing data; step 4, heating by using an electric heating pipe, and recording data; step 5, arranging experimental data; step 6, and drawing a curve. The experimental device and the experimental method are ofgreat significance to formulating underground disaster prevention measures for mines and selecting ventilation decisions and disaster avoidance routes in catastrophe periods.
Owner:LIAONING TECHNICAL UNIVERSITY

Test machine for testing aligning torque of manually operated recliner of automobile seat

The invention relates to a test machine for testing the aligning torque of a manually operated recliner of an automobile seat. The test machine for testing the aligning torque of the manually operated recliner of the automobile seat is characterized by comprising a testing device and a framework device which are connected with each other. The testing device comprises a lower worm gear case, a lower worm gear case hand wheel, a rotating seat, a base board, a rotating fixed block, a rotating shaft, an upper worm gear case, an upper worm gear case hand wheel, a sensor rotating framework, a force sensor, a fixed plate, a sense displayer and an automatic angle measurer. The framework device comprises a recliner mounting seat base board, a recliner mounting seat, a recliner lower board, a recliner upper board, a simulation framework sensor stress board and a simulation backrest framework. The lower worm gear case and the rotating seat are fixed on the base board, the upper worm gear case and the framework device are fixed on the fixed plate, the base board, the rotating fixed block, the fixed plate, the sensor rotating framework and the force sensor are arranged from bottom to top in sequence, and the base board, the center axis of the rotating shaft and the fixed plate are parallel to one another. The test machine for testing the aligning torque of the manually operated recliner of the automatic seat is simple in design, reasonable, compact, accurate, reliable and long in service life. Further, the test machine can be used for testing the aligning torque of the manually operated recliner of the automobile seat conveniently.
Owner:ZHEJIANG LONGSHENG AUTO PARTS TECH CO LTD

Motor parameter online identification method

The invention belongs to the technical field of motor control, and particularly relates to a motor parameter online identification method; according to the method, an acquisition device arranged on amonitoring motor is included; the acquisition device comprises an acquisition unit used for acquiring signal parameters of the motor, a storage unit used for storing the collected signals, and a comparison unit used for comparing the collected signals; the interference parameters of the highest value and the lowest value are removed, and the average value is taken to be compared the real-time dynamic standard parameters of the motor, so that parameter state of the motor at the moment can be recognized, the result is closer to an expected value, and the influence on the parameter result of themotor is reduced; and in addition, a rotation speed acquisition module and a temperature acquisition module which are used for acquiring the rotor rotation speed of the motor and the temperature of the motor respectively are further provided, so that the operation condition of the motor can be assisted and judged, and whether the motor breaks down and is affected by the outside or not is judged, and the data collected under the affected state can be screened so as to ensure that the received data result is more accurate.
Owner:江苏罗宾康自动化科技有限公司

Data prediction method and device based on fusion model, equipment and storage medium

The invention relates to the field of artificial intelligence, and provides a data prediction method and device based on a fusion model, equipment and a storage medium. The method comprises the steps that prediction is carried out through a fusion model of an empirical formula source model and a neural network source model, a better function model is obtained through the empirical formula source model, then function model parameters in a calculation formula are obtained based on the neural network source model, and finally a predicted value calculated by hypothesis data is subtracted from the predicted value of the current real-time data, so that the obtained data result is more accurate. And a prediction result with guidance and reference is provided for the user.
Owner:PING AN TECH (SHENZHEN) CO LTD

Constant temperature device based on phase-change material

The invention relates to the technical field of temperature control, and discloses a constant temperature device based on a phase-change material. The constant temperature device comprises a constanttemperature container, a heater, temperature sensors and a controller; the body of the constant temperature container is of a double-layer structure, and the double-layer structure is filled with thephase-change material; the heater is packaged in the double-layer structure and can heat the phase-change material; the temperature sensors are packaged in the double-layer structure and can detect the temperature of the phase-change material in real time; and the controller is electrically connected with the heater and the temperature sensors, wherein the according to the temperature of the phase-change material detected by the temperature sensors , the controller compares the temperature of the phase-change material with the preset temperature of the phase-change material, and the heater iscontrolled to start and stop according to a comparison result. The constant temperature device has the advantages that the constant temperature environment precision is high, the structure is simple,the device is easy to operate, energy consumption is reduced, and the cost is lowered.
Owner:南通东昌环保设备科技有限公司

Tipping-bucket optical rain gauge

A tipping-bucket optical rain gauge is formed by an optical measuring area and a mechanical double-tipping-bucket rain measuring area. The optical measuring area comprises a light source protection box and a light pipe protection box. A rain gauge measuring cylinder is arranged in the mechanical double-tipping-bucket rain measuring area. The light source protection box and the light pipe protection box are arranged horizontally. The mechanical double-tipping-bucket rain measuring area is vertically arranged below the optical measuring area. A rain gauge receiver, an upper metering device and alower metering device are successively arranged in the rain gauge measuring cylinder from top to bottom. The amount of precipitation and precipitation microscopic parameters are measured simultaneously, a data result is accurate, and simultaneously, mutual confirmation inspection is reached, and false alarm is avoided.
Owner:NANJING UNIV OF INFORMATION SCI & TECH

Oil field tank field grounding grid fault detection device

The invention discloses an oil field tank field grounding grid fault detection device, and belongs to the technical field of power system safety diagnosis devices. According to the technical scheme, the oil field tank field grounding grid fault detection device comprises a measurement module, a data processing unit, a man-machine interaction module and a power supply unit, wherein the data processing unit is used for receiving input information of the man-machine interaction unit, receiving the measurement information of the measurement unit, converting the measurement information of the measurement unit into a measurement result, outputting the measurement result to the man-machine interaction module, calculating a corrosion fault result by utilizing the received input information and measurement information, and outputting the calculated corrosion fault result to the man-machine interaction module. The beneficial effects are that the oil field tank field grounding grid fault detection device provided by the invention is convenient to carry, can meet the requirements of trenchless detection, is high in precision, is convenient and quick in measurement, and is quick in data transmission and processing.
Owner:CHINA PETROLEUM & CHEM CORP +1

Machine vision teaching system and method for Newton ring experiment

The invention relates to an image acquisition and processing technology, in particular to a machine vision teaching system and method for a Newton ring experiment. The system comprises a microscopic reading instrument, a Newton ring acquisition camera, a scale acquisition camera, a drum wheel acquisition camera, a hardware board card, a VGA display screen, a first support, a second support and a third support. The microscopic reading instrument is respectively connected with the Newton ring acquisition camera, the scale acquisition camera and the drum wheel acquisition camera through the firstsupport, the second support and the third support. The hardware board card is electrically connected with the Newton ring acquisition camera, the scale acquisition camera, the drum wheel acquisitioncamera and the VGA display screen. The system has visual image display, can quickly and accurately find the center of the Newton ring, effectively reduces experiment accidental errors, and converts the errors into system errors. Pixel-level scale measurement is carried out to obtain estimated bit data in manual measurement, so that the data precision is improved; and a buzzer gives an alarm, so that return errors caused by manual operation are avoided, and a data result is more accurate.
Owner:WUHAN UNIV

Reciprocating type oblique impact slide tester

ActiveCN105891110ACombined performance conclusions are accurateAccurate test conclusionUsing mechanical meansMaterial analysisReciprocating motionEngineering
The invention discloses a reciprocating type oblique impact slide tester. The reciprocating type oblique impact slide tester is characterized by comprising a punch, a sample table, a supporting plate and a rocker, the preset relative position relation between the rocker and the supporting plate is kept through a fixing mechanism when the punch does not exert pressure on the sample table within a cycle of reciprocation, the rocker is driven by the punch to rotate around a bearing when the punch exerts pressure on the sample table, and the rocker rotates around the bearing through the fixing mechanism when the punch stops exerting pressure on the sample table so that the preset relative position relation between the rocker and the supporting plate can be restored and kept till the punch exerts pressure on the sample table again. By means of the tester, the stress state under the material working condition can be effectively simulated, the failure mechanism of obtained failed thin film materials is better matched with the failure mechanism of thin films in the actual working state, and the thin film combination performance result obtained according to the failed thin film materials has higher reference application value.
Owner:HUAZHONG UNIV OF SCI & TECH
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