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104results about How to "Save testing time" patented technology

Product on-line detector

The invention discloses a product on-line detector. The product on-line detector comprises a stander which is arranged on one side of a production line, wherein the stander is fixedly provided with a camera and at least one lighting lamp; at least one pair of sensors is symmetrically fixed on the two sides of the production line; a image pickup port of the camera is opposite to the production line; the light of the lighting lamp irradiates the region opposite to the image pickup port of the camera; the first pair of sensors is positioned to ensure that the area, of which the image needs to be picked up for the first time, of a product is exactly positioned under the image pickup port of the camera when the product triggers the pair of sensors; after the sensors are triggered, a signal is transmitted to an industrial personal computer; the movement of the product is sensed through the sensors; the industrial personal computer controls the camera to pick up image information of the product and determines the type of the product; furthermore, parameters of the camera and the working condition of the lighting lamp are adjusted according to the type of the product; after all subsequent pictures picked up by the camera are transmitted to the industrial personal computer, the industrial personal computer performs intelligent operation according to a preset program and acquires detection result information; a detection result is displayed by a display; and through the process, the product detection is finished on line, thus labor and detection time are greatly saved.
Owner:SUZHOU VISIONFAST MACHINE VISION TECH

Detection device for monitoring water quality on line and water quality on-line monitoring method

The invention provides a detection device for monitoring water quality on line. The detection device comprises a sampling device, a microorganism fixing device, and an electrochemical detection device wherein a sample inlet of the microorganism fixing device is connected with a sample outlet of the sampling device; the microorganism fixing device is a microbial film reactor; the microbial film reactor comprises a container and a microbial film arranged in the container; the microbial film comprises a microbial carrier and a microorganism attached to the microbial carrier; the microbial film reactor is placed in a thermostat; a sample inlet of the electrochemical detection device is connected with a sample outlet of the microbial film reactor; the electrochemical detection device comprises a detection pool, an electrode system, an electrochemical work station and a program control device; the electrode system is arranged in the detection pool; the electrochemical work station is connected with the electrode system; and the program control device is used for controlling the electrochemical work station. The invention further provides a water quality on-line monitoring method. When the on-line monitoring device detects the biochemical oxygen demand and the toxicity of the water sample, the result is accurate.
Owner:CHANGCHUN INST OF APPLIED CHEMISTRY - CHINESE ACAD OF SCI

Avionic device operating modal measuring method for vibration finite element model correction

The invention provides an avionic device operating modal measuring method for vibration finite element model correction. The method includes the following steps that firstly, response test points are arranged, and piezoelectric acceleration transducers are pasted, wherein the n response test points are arranged on a circuit board, and the piezoelectric acceleration transducers are pasted on the response test points respectively; secondly, an avionic device and a test device are installed, and an operating modal test platform is built; thirdly, time domain response data of the avionic device under the random vibration condition are acquired; fourthly, data processing is conducted through modal recognition software, and operating modal parameters of the avionic device are acquired. Through the steps, an avionic device operating modal measuring system for vibration finite element model correction is established, and the overall process from generation of random vibration signals to acquisition of the time domain response data and from generation of a time domain response data sample and a cross-spectrum function to recognition of the operating modal parameters of the avionic device is finished. According to the method, online modal recognition is achieved, and test time is saved and test cost is reduced.
Owner:BEIHANG UNIV

Preset automatic feeder test method for distribution network

The invention discloses a preset automatic feeder test method for a distribution network, relating to the technical field of power system automation and solving technical problems of labor consuming and time consuming. The preset automatic feeder test method comprises the steps as follows: compiling all test cases in sequence into a preset case, storing the preset case in test instruments, starting the test instruments for synchronous test, synchronously switching the test instruments into test state sections in a test process, and synchronously switching the test cases until all the test cases in the preset case are tested; and automatically generating corresponding electric data according to test state section data by the test instruments, outputting current, voltage and various state data through analog output terminals of the test instruments, making and executing a decision by a tested automatic feeder system according to the section data, and automatically responding to decision behavior of the tested system by the test instruments through control input terminals. The preset automatic feeder test method is suitable for automatic feeder test of the distribution network.
Owner:SHANGHAI WISCOM SUNEST ELECTRIC POWER TECH

Website security detection method and device

The invention discloses a website security detection method and device. The website security detection method comprises the steps that a website is obtained; website programs used by the website are identified based on website fingerprint information of the website, and loophole detection is conducted on the website according to the website programs; lastly, a detection result is returned. By means of the website security detection method and device, the cost of the loophole detection on the website can be reduced obviously, the loophole detection speed can be increased, and the rate of missing report can be decreased.
Owner:ALIBABA GRP HLDG LTD

Enterobacter sakazaii colour development culture medium, detection kit and detection method

The invention provides a fluorogenic culture medium of Enterobacter sakazakii, a test kit and a test method thereof, and relates to a method for testing microbe and a composition used by the method. The fluorogenic culture medium comprises the compositions as follows: 8 to 20 grams of peptone, 4 to 7 grams of beef extract powder, 4 to 7 grams of sodium chloride, 1.0 to 2.0 grams of cholate, 12 to 20 grams of agar, 0.05 to 0.5 grams of X-a-glucopyranoside, 0.01 to 0.04 grams of Na2CO3, 0.3 to 2.0 grams of ferric ammonium citrate, and 0.3 to 2.0 grams of sodium thiosulfate. The test kit consists of the fluorogenic culture medium of Enterobacter sakazakii, an enriched liquid A ,namely buffer peptone water culture medium, and an enriched liquid B, namely modified lauryl sulfate pancreas peptone broth. The test kit is configured simply, and the test method has high sensitivity in detection, so the method is suitable for treating large flux samples.
Owner:GUANGDONG HUANKAI MICROBIAL SCI & TECH

Memory wafer test method and memory tester

ActiveCN105070320AAvoid large leakage current damageAvoid damageStatic storageMemory chipShort-circuit test
The invention provides a memory wafer test method and a memory tester. According to the test method, before wafer probing such as function test is performed, firstly, a simultaneous-test memory chip on a wafer is subjected to grouping short-circuit test; whether the wafer fails or not is judged; the memory tester only starts after the wafer passes the short-circuit test; and the wafer probing is performed, so that the condition that a probe card and the like can be damaged by heavy leakage current of a failed wafer when the tester is directly used for probing on the failed wafer is avoided; meanwhile, a damaged chip can be found and removed as early as possible; the average test time of the wafer test is reduced; and the test cost is reduced. The memory tester provided by the invention is additionally provided with a grouping management unit; the grouping management unit can perform probe grouping on the probe card; and pins of a tested memory chip in the group are grounded for short-circuit test, so that the tester can be protected, and the condition that the probe card and the like can be damaged by great leakage current of the failed wafer when the tester is directly used for probing on the failed wafer is avoided.
Owner:SHANGHAI HUAHONG GRACE SEMICON MFG CORP

Determination reagent for cholesterol in high density lipoprotein and preparing method thereof

This invention relates to a test agent and its process method to test the cholesterin in the lipoprotein with high intensity in blood serum. This invention aims to provide an improvement of the agent and its process method by which we can get the agent able to automatic biochemical analysis device in each type. The technique project and the contents are the flowing: a, high combining enzyme compound; b, surface activity agent; c, some antiseptic agent, stabilization agent and color source.
Owner:浙江伊利康生物技术有限公司

Triple fluorescent quantitative PCR detection material and kit for distinguishing African swine fever virus wild strains from CD2V and/or 360-505R gene deleted strains

The invention discloses a triple fluorescent quantitative PCR detection material and kit for distinguishing African swine fever virus wild strains from CD2V and / or 360-505R gene deleted strains. The detection material comprises primers and probes, and the nucleotide sequences are shown as SEQ ID NO: 1-9. According to the invention, triple fluorescent quantitative PCR amplification is carried out on African swine fever virus P72, CD2V and 360-505R genes by utilizing three groups of primer probes, so that the detection cost and the detection time for identifying different genes are reduced; whether gene deletion exists in the strain or not can be distinguished; the detection material and kit have high specificity and sensitivity; and for traditional qPCR enabling only one gene to be amplified each time, the provided mode has the following advantages: three genes are amplified at the same time in each PCR reaction, and the cost is reduced by about 2 / 3.
Owner:SOUTH CHINA AGRI UNIV +1

Double-fluorescent PCR detection primer, probe, reaction liquid and kit capable of detecting pathogens of respiratory tract

The invention discloses a double-fluorescent PCR detection primer, a probe, reaction liquid and a kit capable of rapidly detecting 16 pathogens of the respiratory tract. The kit comprises pre-subpackaged PCR reaction liquid, RT-PCR enzyme, a positive quality control product and a negative quality control product, wherein the pre-subpackaged PCR reaction liquid is provided with a primer and a TaqMan probe for detecting at least two of the following pathogens: respiratory syncytial virus, enterovirus, coronavirus NL63, coronavirus HKU1, coronavirus 229E, coronavirus OC43, parainfluenza virus type I, parainfluenza virus type II, rhinovirus, parainfluenza virus type III, human bocavirus, human metapneumovirus, mycoplasma pneumoniae, chlamydia pneumoniae, adenovirus and legionella pneumophila. The kit is convenient to operate, and can be used for at most screening 16 syndrome pathogens of the respiratory tract within 2 hours, so that the detection time and cost are greatly saved. The kit has the greatest advantages of simplicity in operation and strong practicability, and can be easily popularized in laboratories of the ports.
Owner:SHENZHEN INT TRAVEL HEALTHCARE CENT +1

RF electromagnetic field and radio immunity test system and method of electric energy meter

ActiveCN105022020ARealize synchronous recordingHigh precisionElectrical measurementsAudio power amplifierEngineering
The invention discloses an RF electromagnetic field and radio immunity test system of an electric energy meter. The system comprises a tester body, a signal generator, an EMI receiver, a rotary table and antenna tower controller and an electric energy meter calibrating device, wherein the tester body is connected with the rotary table and antenna tower controller via a router, the electric energy meter calibrating device is connected to the tested electric energy meter via a filter, the rotary table and antenna tower controller is connected with a rotary table and an antenna tower, the EMI receiver is connected with an RF switch and a stop band filter, the RF switch and the stop band filter are connected with the router and the antenna simultaneously, the signal generator is connected with the RF switch, and the RF switch is connected with a power amplifier. Due to utilization of the network synchronization technology, immunity test of the RF electromagnetic field, synchronous recording of errors of the electric energy meter, multifunctional electromagnetic field test and RF interference suppression test are automatically integrated, monitoring data is collected and analyzed in real time, the operation and detection cost and the detection time are greatly reduced, and the accuracy of test data is effectively ensured.
Owner:国网山东省电力公司营销服务中心(计量中心) +2

Adjustable pipe center transillumination device

The invention introduces an adjustable pipe center transillumination device, which comprises a radiation source, an exposure head, a source protection cavity, positioning bolts, a first bracket, a second bracket, and a radiation source conveying pipe. Each bracket comprises a hollow tube with thread, a reset spring, a front support ring, a rear support ring, three supporting arms, a fastening adjusting ring with thread; each supporting arm comprises a front supporting leg, a rear supporting leg and a guide wheel; two ends of each supporting leg are respectively fixed on shaft ends of a fixing ring and of the guide wheel; and the second bracket is located behind the first bracket, and connected with the first bracket through threads. The invention has good effect and efficiency improved by 10 times compared with an original double wall single image method, and can save a large amount of construction and detection time, greatly reduce the difficulty of a nondestructive detection, and ensure realization of the whole project goals due to the short radiation time; therefore, the device provided by the invention solves a bottleneck problem of technical pipeline detection construction for a high pressure hydrogenation device or a similar device.
Owner:BC P INC CHINA NAT PETROLEUM CORP +1

Optical module for local loopback module

ActiveCN108880674ASave on testing costsSave testing timeFibre transmissionLoopbackVIT signals
The present invention discloses an optical module for a local loopback module. The optical module can simulate test application environments in different power consumption conditions to accurately collect feedback related information in real time and is suitable for network devices with various different modulation types and rate in different link attenuation conditions so as to shorten the test time and reduce the test cost while improving the test precision and the accuracy. The optical module comprises a plurality of interfaces, an attenuator circuit ATT, a CDR module, a micro control unit(MCU), a multi-path control switch and a plurality of load resistors which are packaged according to a preset protocol, wherein the MCU is configured to set an initialization modulation module and a power consumption grade of the optical module according to the preset protocol to control the CDR module to employ a PAM-4 modulation mode or an NRZ modulation mode and switch the rate of each signal interface according to the modulation mode; and moreover, a corresponding load power consumption value is controlled to be set, and the CDR module is controlled to establish network mapping between input / output signal interfaces.
Owner:成都新易盛通信技术股份有限公司 +1

Method for real-time quantitative polymerase chain reaction (PCR) detection of bifidobacteria and Escherichia coli by using Taqman probes

InactiveCN102559912AKinetic Change MonitoringReveal diversityMicrobiological testing/measurementMicroorganism based processesEscherichia coliPcr method
The invention discloses a method for real-time quantitative polymerase chain reaction (PCR) detection of bifidobacteria and Escherichia coli by using Taqman probes. The method comprises the following steps of: A) extracting bacterial genome DNA of the bifidobacteria and the Escherichia coli in a sample to be detected; B) synthesizing primers and the Taqman probes according to related sequences of the bifidobacteria and the Escherichia coli; and C) ensuring that the primers and the probes obtained in the step B) and other PCR reaction reagents form a reaction system for real-time quantitative PCR by the Taqman probes. The Taqman probes are labeled by double colors, by a double absolute quantitative PCR method, two kinds of intestinal bacteria in a sample can be accurately quantified at one time, the detection cost and detection time can be saved, and errors caused by repeated detection are reduced.
Owner:SHENZHEN CHILDRENS HOSPITAL

Productivity testing real-time adjustment method of offshore oil well

The invention discloses a productivity testing real-time adjustment method of an offshore oil well. The productivity testing real-time adjustment method comprises the following steps: monitoring wellhead pressure and flow at a productivity testing phase of the offshore oil well in real time; converting to obtain a bottom hole flowing pressure and time relation; judging whether testing-grade bottom hole reaches a stable state or not; if so, carrying out the next step; otherwise, continually testing; adjusting testing-grade testing time and replacing a working system in time; judging whether actually measured bottom hole flowing pressure is equal to a pre-set relation value or not; if so, carrying out the next step; otherwise, revising reservoir parameters corresponding to the pre-set relation value; judging whether a pre-set relation of an untested grade meets testing requirements or not; if so, designing testing flow and a time sequence and adjusting a testing scheme; otherwise, revising untested grade flow and time sequence, which correspond to the pre-set relation value. By adopting the method disclosed by the invention, a productivity testing scheme is adjusted in real time, and the success rate of the testing and the quality of recorded testing data are improved; testing risks are reduced and the testing cost is saved.
Owner:CHINA NAT OFFSHORE OIL CORP +1

Method for measuring states of battery and application of method

The invention discloses a method for measuring the states of a battery and application of the method. The method for measuring the states of the battery includes the following steps that: (1) the current and voltage of the battery in operating are measured; (2) the series resistor resistance value, parallel resistor resistance value and parallel capacitance value of a first-order RC equivalent circuit model are extracted by adopting the least square method according to the measured current and voltage values; and (3) the state of heath (SOH) of the battery is preliminarily judged according to an interval where the extracted series resistor resistance value is located, and the state of heath of the battery is judged according to intervals where the parallel resistor resistance value and the parallel capacitance value are located. With the method of the invention adopted, the state of heath and the state of charge of the battery in a use process can be described authentically and comprehensively, and the determination of the performance of the battery and the prolonging of the service life of the battery can be benefitted, and the battery can be fully utilized. According to the method of the invention, only the current and voltage of the battery are required to be tested online, and therefore, test time and cost can be saved, and the usage rate of the battery can be improved. The method is suitable for establishing the service life prediction models of various retired lithium ion batteries.
Owner:未名电池科技(深圳)有限公司

Color developing culture medium, detecting kit and detecting method for vibrio parahaemolyticus

The present invention relates to color developing culture medium, detecting kit and detection method for Vibrio parahaemolyticus, and belongs to the field of food microbe safety monitoring technology. The detecting kit consists of color developing culture medium comprising bacterial specific enzyme in 0.05-0.95 g and mixed color developing substrate Y-glucoside, enrichment liquid A of pancreatic casitone liquid culture medium and enrichment liquid B comprising sodium chloride, polymyxin and broth. The detection method includes the enrichment culture of the sample in enrichment liquid A and enrichment liquid B, the culture of the two parts of enrichment cultured liquid in the color developing culture medium, and judging whether to exist Vibrio parahaemolyticus according to whether to have smooth raised purple colony of 2-3 mm diameter. The present invention has low cost, high detection sensitivity, short detection period and other advantages.
Owner:广东实验中学 +1

Triolocation compensation algorithm for single-shaft fiber-optic gyroscope in oil well survey

The invention discloses a triolocation compensation algorithm for a single-shaft fiber-optic gyroscope in the oil well survey. According to the algorithm, an installation structure of the gyroscope and an accelerometer is adopted, a compensation calculation algorithm is conducted on output values, and the values are recorded by the accelerometer in the motor transposition process; the single-shaft fiber-optic gyroscope and the single-shaft accelerometer are adopted for forming a gyro inclinometer, the fiber-optic gyroscope and the single-shaft accelerometer are mechanically connected with a transposition mechanism through slip rings, the direction and the well deviation of each measuring point can be calculated in a triolocation mode without zero returning operation, transposition is conducted in one direction, operation is conducted cyclically by 0 degree, 90 degrees, 180 degrees, 270 degrees and 360 degrees, and the number of position point data needed in calculation is only three. According to a triolocation treatment method for the single-shaft fiber-optic gyroscope in the oil well survey, measurement time can be shortened, instrument cost is saved, and the algorithm is designed for determining the inclination and the direction of the gyro inclinometer in the fields such as oil logging and mine exploration and is worthy of application and popularization.
Owner:贵州航天凯山石油仪器有限公司

Detection kit, primer and probe for simultaneously detecting and identifying classical swine fever, African swine fever and swine vesicular disease

The invention discloses a detection kit, a primer and a probe for simultaneously detecting and identifying classical swine fever, African swine fever and a swine vesicular disease. The primer and the probe are shown as a sequence table SEQ ID NO: 1 to SEQ ID NO: 16. The invention further discloses the one-step-method multi-fluorescent RT-PCR (Reverse Transcription-Polymerase Chain Reaction) detection kit which is rapid, accurate and convenient to use and can be used for simultaneously detecting and identifying the classical swine fever, the African swine fever and the swine vesicular disease. A detection method disclosed by the invention can be used for realizing one-time sampling and one-time analysis and can realize the aim of simultaneously detecting and distinguishing three important viruses, so that the working amount and cost of detection are reduced, the detection of epidemic diseases can be finished within shortest time and the time for preventing and controlling the diseases is earned.
Owner:BEIJING ENTRY EXIT INSPECTION & QUARANTINE BUREAU INSPECTION & QUARANTINE TECH CENT

Infrared-thermal-imaging-based continuous component bulk high-flux multi-field screening device and method

The invention discloses an infrared-thermal-imaging-based continuous component bulk high-flux multi-field screening device and method, the device includes a control center, an experiment box, a loading platform, a temperature control module, a current control module, a vacuum generation device and an infrared thermal imaging system. In an experiment, different field excitations are inputted, according to different material characteristics, the upper surface of a to-be-detected sample has different temperature responses. Thermal radiation information of all sample surfaces is parallelly acquired. Color of each block of sample in a corresponding region in a thermal radiation energy image is identified by visual inspection to obtain temperature information. A temperature response curve of each block of sample is generated. According to a mathematical model of the test system, the physical characteristics of the material are calculated, and then screening results are obtained.
Owner:SHANGHAI UNIV

Gas chromatographic analysis device and analysis method of MTO reactive product gas

The invention provides a gas chromatographic analysis device and an analysis method of a MTO reactive product gas. The analysis device comprises a first analysis unit, a second analysis unit and a third analysis unit, wherein the first analysis unit is used for analyzing content of hydrocarbon gases and oxygen-containing compounds, and comprises a first ten-way valve, a first pre-separation column, a second pre-separation column, a six-way valve and a first detector which are connected in sequence, and a first chromatographic analysis column and a damping tube, two ends of the first chromatographic analysis column and the damping tube are connected with the six-way valve, and the first ten-way valve is provided with a tenth opening J connected with an air source to be detected; the second analysis unit is used for analyzing the content of H2 and comprises a second ten-way valve, a third pre-separation column, a second chromatographic analysis column and a second detector which are sequentially communicated, and the second ten-way valve is provided with a tenth opening J' connected with the air source to be detected; and the third analysis unit is used for analyzing the content of permanent gases except for hydrogen, and comprises a third ten-way valve, a third chromatographic analysis column and a third detector which are sequentially communicated, and the third ten-way valve is provided with a ten-way valve is provided with a tenth opening J'' connected with the air source to be detected. Only one instrument is needed, and the analysis time is short.
Owner:CHINA SHENHUA ENERGY CO LTD +2

Multiple PCR specific primers, kit and method for detecting hereditary hearing loss gene based on high throughput sequencing technique, kit and method

The invention belongs to the field of gene detection and especially relates to multiple PCR specific primers, kit and method for detecting a hereditary hearing loss gene, based on a high throughput sequencing technique. The primers include 52 pairs of specific primers, the nucleotide sequences of which are shown as SEQ ID NO:1 to SEQ ID NO:104. The kit further comprises the specific primers, a universal primer, an enzyme mixture, a quality control substance and nuclease-less water. The invention also discloses a detection method for capturing and amplifying the hereditary hearing loss gene through once PCR amplified reaction by utilizing the primers or kit. According to the scheme provided by the invention, the detection efficiency is effectively increased, the accuracy is increased, the cost is lowered and the operation step is simplified.
Owner:广州奇辉生物科技有限公司

Slide or test paper array for detecting liquid calcium ions and preparation method and application method of slide or test paper array

The invention belongs to the technical field of analytical chemistry, and specifically relates to a slide or test paper array for detecting liquid calcium ions and a preparation method and application method of the slide or test paper array. The slide or test paper array is slides or test paper soaked with concentrated sulfuric acid, hexadecyltrimethoxysilane and isopropanol. The mass percentage of concentrated sulfuric acid, hexadecyltrimethoxysilane and isopropanol is 0.1-3%, 3-18% and 80-96.9%. During use, an APS-CCA solution is added dropwise and taken as a colorimetric probe, wherein the mass percentage of APS in the solution is 0.1-20%, and the concentration of CCA is 0.1-25 mmol / L, and a lattice array of a colorimetric probe solution is formed. The slide or test paper array is fast, simple and visualized, is convenient to carry, and can be used for on-site detection. The array has high throughput, and can detect multiple samples at the same time. The array is excellent in hydrophobic performance, so that cross contamination between to-be-detected samples is greatly reduced. The array is simple and easily-controlled in preparation process, has excellent selectivity of calcium ions, and is high in detection accuracy.
Owner:CENT SOUTH UNIV

Gun adjustment precision detection system based on satellite positioning

The invention discloses a gun adjustment precision detection system based on satellite positioning, and relates to the field of guns. The gun adjustment precision detection system comprises a satellite, a gun bore axis calibration instrument, a clamp of the gun bore axis calibration instrument, a positioning directional host, zero phase antennas and an external display and control device. The gun bore axis calibration instrument comprises a laser transmitting terminal and a laser receiving terminal. The laser transmitting terminal and the laser receiving terminal are fixed to the two ends of a gun body pipe through the clamp respectively, the top end of the laser transmitting terminal and the top end of the laser receiving terminal are fixedly provided with the zero phase antennas respectively, the external display and control device is connected with the positioning directional host, and the two zero phase antennas are in wire or wireless connection with the positioning directional host. The gun adjustment precision detection system is simple in structure and convenient to operate, greatly improves detection efficiency, saves labor and detection time, and is accurate in gun adjustment precision detection, multipurpose and particularly applicable to high gun adjustment precision detection.
Owner:河北军涛科技有限公司

File system directory maximization test method, device, terminal and storage medium

Embodiments of the present application provide a file system directory maximization test method, a device, a terminal, and a storage medium, including: updating a NAS cluster; setting file system creation quantity; setting the number of directories corresponding to the file system; a file system and a corresponding directory being created in a test NAS cluster cycle according to the number of filesystem creation and the number of corresponding directories. By updating the NAS cluster, the technical scheme eliminates the adverse influence of the information in the existing NAS cluster on the maximization test, and automatically circulates the creation of the file system and the corresponding directory according to the preset file system creation quantity and the corresponding directory quantity in the newly-built NAS cluster. The technical scheme does not need manual operation, saves a lot of testing time and energy, and improves testing efficiency.
Owner:ZHENGZHOU YUNHAI INFORMATION TECH CO LTD

Method for recognizing ignition top dead center of first cylinder of four-stroke diesel engine and detection device thereof

InactiveCN103759947AAccurately identify the moment of top dead center of ignitionIncrease the first induced voltage signalInternal-combustion engine testingExhaust valveTop dead center
The invention provides a method for recognizing the ignition top dead center of a first cylinder of a four-stroke diesel engine. The method for recognizing the ignition top dead center of the first cylinder of the four-stroke diesel engine comprises the steps that a magnetic enhancing element is embedded in a gear tooth, corresponding to the top dead center of the first cylinder, of a flywheel ring gear of a crank shaft of the diesel engine, so that a first induced voltage signal which is abnormally enhanced is obtained when the gear tooth passes a rotation speed sensor; a magnetoelectric sensor is arranged at the end of a rocker arm of a vent valve of a valve mechanism of the first cylinder of the diesel engine, so that a mutative second induced voltage signal is obtained when the position of the rocker arm is changed suddenly; the time for ignition of the top dead center of the first cylinder is judged by analyzing the relative positions where the first induced voltage signal and the second induced voltage signal are generated. The method for recognizing the ignition top dead center of the first cylinder of the four-stroke diesel engine has the advantages that the method is simple and easy to realize, the judgment result is accurate, detection cost and detection time are saved, and powerful support is provided for positioning a fault of the diesel engine. The invention further provides a detection device used for the method for recognizing the ignition top dead center of the first cylinder of the four-stroke diesel engine.
Owner:DALIAN MARITIME UNIVERSITY

Automatic protection switching protocol testing method

The automatic protection switching protocol testing method includes the following steps: creating simulating APS network and simulating network elements in corresponding number; configuring relevant attribute of the simulating APS network; establishing information transmission mechanism among the simulating network elements; transferring the excitation information to APS protocol processing module of the simulating network elements; analyzing the processing result of the APS protocol processing module; and recording the I / O state information of the simulating APS network for undesirable result or creating test data of simulating APS network for desirable result. The present invention occupies no hardware resource, and has greatly lowered test cost, simplified test process and raised test efficiency.
Owner:ZTE CORP

Method for quantitatively detecting organophosphorus pesticide chlorpyrifos in environmental air

ActiveCN107490647ASet up and optimize HPLCEstablish and optimize the secondary mass spectrometer (MSComponent separationParticulatesChlorpyrifos
The invention provides a method for quantitatively detecting organophosphorus pesticide chlorpyrifos in environmental air, and belongs to the field of detection methods for pesticide residues. The method comprises collection of a sample (comprising a gas phase part and a particulate matter part), pretreatment of the sample and chromatography-tandem mass spectrometry quantitative detection. Compared with reported methods, the detection of the chlorpyrifos in the environmental air is higher in selectivity and higher in sensitivity through the optimization of parameters of a chromatography-mass spectrometry detection method. According to the method, by the use of a multi-reaction monitoring technology of high performance liquid chromatography / tandem mass spectrometry, the shortcoming that a conventional detector cannot have the selectivity and the sensitivity at the same time during detection of a trace chlorpyrifos compound in a complicated background matrix is overcome, and qualitation and quantitation are more accurate and reliable. Therefore, compared with conventional UV-Vis, HPLC / PDA, GC / ECD and GC / NPD, the method provided by the invention has very outstanding advantages.
Owner:NANJING INST OF ENVIRONMENTAL SCI MINIST OF ECOLOGY & ENVIRONMENT OF THE PEOPLES REPUBLIC OF CHINA

Gait analysis method for assisting in screening meniscus injuries

InactiveCN106650195AAccurate and Rapid Assisted ScreeningAvoid non-invasive diagnosticsHealth-index calculationMedical automated diagnosisMeniscal injuryKinematics
The invention discloses a gait analysis method for assisting in screening meniscus injuries. The gait analysis method includes the steps that gait feature data of meniscus injury patients and healthy able-bodied persons is collected and subjected to neural network modeling and training; proper gait features are selected through kinematic and dynamic analysis of body gait, and gait dynamic knowledge is obtained; then the gait feature data of the meniscus injury patients serves as a test set. In this way, screening is accurately and rapidly assisted, it is avoided that non-invasive diagnosis is carried out under MRI and an arthroscopy, the accuracy of preoperative diagnosis is greatly improved, and the detection cost and the detection time are saved. The gait analysis method for assisting in screening meniscus injuries can be widely applied to the field of medical treatment.
Owner:张余

Automatic torsion detection machine

The invention discloses an automatic torsion detection machine which comprises an electric control box and a torsion detection chamber, wherein the torsion detection chamber is arranged at the upper part of the electric control box; cylinders are arranged at the upper part of the torsion detection chamber in a bilateral symmetry manner; the torsion detection chamber is of an upper-and-lower double-layer structure; the upper-and-lower double-layer structure is separated by an up-and-down moving plate from the middle; four top corners of each of the upper and lower surfaces of the up-and-down moving plate are fixed by guide columns; a buffering spring is arranged between two guide columns on the same side arranged on the upper surface of the up-and-down moving plate; a rotating motor is arranged on the bottom surface of the torsion detection chamber; a fixing tool is arranged at the upper part of the rotating motor. By adoption of the automatic torsion detection machine, a special detector does not need to take greater effort to make a test, and only a detection component is mounted in place; therefore, the working intensity of a worker and the requirement on the skill of the worker are reduced, the labor and the detection time are greatly saved, and the detection precision is greatly improved; the manmade error is smaller, and a detection result is stable.
Owner:PROACTION TECH CHANGZHOU
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