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38results about How to "The test results are reliable" patented technology

Method for measuring material complex permittivity based on substrate integrated waveguide round resonant cavities

The invention relates to the technical field of testing of material complex permittivity, in particular to a method for measuring material complex permittivity based on substrate integrated waveguide round resonant cavities. The method comprises the steps that firstly, the substrate integrated waveguide round resonant cavities with different resonant frequencies (work frequencies) are machined; secondly, for the substrate integrated waveguide round resonant cavities with the same resonant frequency, a sample with material identical to that of a dielectric layer 2, a standard sample with the known complex permittivity and a sample to be measured are respectively loaded, swept-frequency signals are fed respectively through a vector network analyzer, and the resonant frequencies and the quality factors of the three samples are tested; finally, simultaneous equations are established and solved, and then the complex permittivity of the sample to be measured at the work frequency of the corresponding substrate integrated waveguide round resonant cavity can be obtained. A multi-frequency-point clock test of the material complex permittivity can be completed in the mode that the substrate integrated waveguide round resonant cavities with other work frequencies are used and the same test process is repeated. The method for measuring material complex permittivity based on the substrate integrated waveguide round resonant cavities has the advantages that the sizes of the substrate integrated waveguide round resonant cavities are small, machining is convenient, and the precision of a measurement result is high.
Owner:UNIV OF ELECTRONICS SCI & TECH OF CHINA

Preparation method of activated carbon adsorption film and method for measuring bisphenol substances in wetland soil or sediment based on thin-film diffusion gradient technique

The invention discloses a preparation method of an activated carbon adsorption film and a method for measuring bisphenol substances in wetland soil or sediment based on a thin-film diffusion gradient technique, and belongs to the fields of environmental sciences and earth sciences. According to the preparation method of the activated carbon adsorption film, the activated carbon adsorption film is prepared by mixing activated carbon as an adsorbent with agar, and then is overlapped on an agar diffusion film and a PTFE filter film to form a DGT device; after nitrogen introduction pretreatment, the DGT device is put into the wetland soil or the sediment to be tested for 24 hours, and then the activated carbon adsorption film is taken out and eluted by use of an eluent which is the mixed solution of methanol and sodium hydroxide; next, the adsorbing capacity of the bisphenol compounds in the adsorption film is measured and the concentration of the bisphenol substances in the wetland soil or the sediment is calculated according to the Fick's first law of diffusion. The preparation method of the activated carbon adsorption film is simple in process, the adsorbent is even in distribution, the adsorbing capacity is high and the quality guarantee period is long; the DGT technique based on the adsorption film is simple and easy to operate and the testing result is representative, and therefore, the DGT technique is suitable for in-situ detection of the bisphenol substances in the wetland soil or the sediment.
Owner:NANJING UNIV

Method for evaluating behavior safety of automatic driving vehicle

The invention discloses a method for evaluating the behavior safety of an automatic driving vehicle, which comprises the steps of obtaining environment perception parameters, network connection parameters, judgment decision parameters, control execution parameters and a network connection degree coefficient of the automatic driving vehicle; obtaining an evaluation score of the behavior safety of the automatic driving vehicle according to the environment perception parameters, the network connection parameters, the judgment decision parameters, the control execution parameters and the network connection degree coefficient; and obtaining an evaluation result of the behavior safety of the automatic driving vehicle according to the evaluation score of the behavior safety of the automatic driving vehicle. The method for evaluating the behavior safety of the automatic driving vehicle can comprehensively consider the behavior safety of the automatic driving vehicle from multiple angles, and enables the evaluation result to be accurate and reliable, thereby providing a feasible method for testing and evaluating the behavior safety of the automatic driving vehicle, enabling related test standards to be perfect, and promoting the development of the automatic driving vehicle industry in China.
Owner:中国软件评测中心(工业和信息化部软件与集成电路促进中心)

Road basal pelletized material mixture resilient modulus indoor test method and device

The invention discloses a road base gravel mixture rebound modulus indoor test method. The steps include that first, test materials are added in a test tube. The second step is sample static pressure molding. The third step is to arrange a miniature bearing plate on the surface of the sample. The fourth step is loading, unloading and rebound modulus test implementation. The fifth step is to read deformation amount. The sixth step is to take a rebound modulus value. The seventh step is to process test data. And the rebound modulus value is obtained. The invention is characterized in that firstly the test tube value taken formula is that the ratio of the diameter of the test tube to the maximum grain size=D / dmax. And the ratio is larger than five. Secondly, the diameter of the bearing plate is three times of the gravel maximum grain size. Thirdly, the mode of the rebound modulus test is that a jack is arranged on the bearing plate. The rebound modulus test is implemented through loading and unloading with a reaction frame. The loading amount is controlled by a test-force ring. The invention also discloses a rebound modulus indoor test device. The invention has the technical effects of strong adaptability, convenient operation and credible test results, which can be applied to general scientific research colleges and design and construction units.
Owner:CHONGQING JIAOTONG UNIVERSITY

Adsorption film mixing three metallic oxides and preparation method thereof and method for measuring fluorinion based on gradient diffusion thin film technology

The invention discloses an adsorption film mixing three metallic oxides and a preparation method thereof and a method for measuring fluorinion based on a gradient diffusion thin film technology. The adsorption film takes three oxides, namely iron, aluminum and cerium as adsorption materials, and the three oxides are uniformly dispersed into a polyacrylamide solution to form a gel and the gel is heated to form an adsorption film. The adsorption film, a diffusion film and a filter membrane are overlapped to assemble a DGT device, and the DGT device is placed into water body and sediments to realize in situ testing of fluorinion and the subcentimetre high resolution detection of fluorinion distributed in the water body and sediments. The adsorption film prepared by adopting the preparation method disclosed by the invention is large in adsorption capacity, long in retention time and easily available in materials; compared with the traditional fluorinion selective electrode method, the fluorinion in situ test method based on the gradient diffusion thin film technology is wide in application range and the result has more representativeness.
Owner:NANJING UNIV

Evaluation method of multimedia message service user perception and experience QoE for simulating user behavior

The invention discloses an evaluation method of multimedia message service user perception and experience QoE for simulating user behavior. The method comprises the steps of firstly setting a multimedia message service QoE evaluation index system including sending and receiving two types of user perception and experience parameters, in terms of service access, service maintenance and service completion, through multimedia message, then adopting a test terminal to simulate the process of sending and receiving multimedia message by the user, respectively gathering and computing key performance indexes KPI of the two types of user perception and experience of the multimedia message service, further computing corresponding key quality indexes KQI of the multimedia message service, adopting a mental model to perform comprehensive operation to KQI, so as to obtain key experience indexes KEI of the corresponding multimedia message service, and then performing comprehensive analysis to the KEI indexes, so as to obtain 5-point system multimedia message service QoE values equivalent to international standard mean opinion score MOS. The method has the advantages that the evaluation parameter standard is objective and practical, the operation steps are simple, the computation complexity is low, and the method is easy to realize, and can simulate the user behavior to obtain objective and fair user perception and experience quality.
Owner:北京东方文骏软件科技有限责任公司 +1

Multistation computer test system facing multitandem valves

The invention discloses a multistation computer test system facing multitandem valves. The test system comprises a computer data processing system, a plurality of test stations formed by data acquisition systems, hydraulic systems, tested multitandem valves and sensors, and a 485 bus. The system can carry out various tests for the multitandem valves, each oil port is provided with a pressure sensor and a flow sensor, pressure and flow signals can be collected in the tests, the pressure and flow signals are converted into electric signals, after the electric signals are converted into digital signals through analog to digital conversion, the digital signals are converted into pressure and flow data through a single chip program to be stored into a data storage module and simultaneously displayed through a display module; and the computer data processing system reads the data stored in all the station data storage modules through the 485 bus, the data are written into a data base to be analyzed and processed, a report is generated, the various test stations can work simultaneously or independently without mutual interference. The multistation computer test system can provide rapid and effective computer-aided testing means for the multitandem valve testing.
Owner:ZHEJIANG UNIV

Vehicle-mounted turbocharger monitoring system and method for motor vehicle

The invention belongs to the technical field of turbocharging, and particularly relates to a vehicle-mounted turbocharger monitoring system and method for a motor vehicle. According to the technical scheme, the vehicle-mounted turbocharger monitoring system comprises an A / D convertor, a data processor, a memorizer, a supercharger speed sensor, a compressor discharge pressure sensor, a compressor discharge temperature sensor, a turbine motor intake pressure sensor and a turbine motor intake temperature senor. The supercharger speed sensor is installed on a middle body of a turbocharger, the compressor discharge pressure sensor and the compressor discharge temperature sensor are installed on a compressed gas exhaust pipeline at the outlet position of a compressor of the turbocharger, and the turbine motor intake pressure sensor and the turbine motor intake temperature sensor are installed on a waste gas intake pipeline at the inlet position of a turbine motor of the turbocharger. The vehicle-mounted turbocharger monitoring system carries out performance testing on the turbocharger which is installed on the motor vehicle and is in actual use under various working conditions, and basic data is provided for more excellent matching and following improvement of the turbocharger.
Owner:凤城市时代龙增压器制造有限公司

Calcite mineral laser uranium-lead isotope dating process

The invention provides a calcite mineral laser uranium-lead isotope dating process. The process comprises raking via a calcite sample to be detected and standard samples, and the standard sample at least comprising an isotope fractionation correction standard sample, an age correction standard sample and a verification standard sample WC-1; carrying out laser ablation sampling on the calcite sample to be detected and the standard samples, and respectively carrying out isotope detection on obtained ablation products; correcting obtained isotope values by utilizing the isotope fractionation correction standard sample; respectively calculating the test ages of the calcite sample to be detected, the age correction standard sample and the verification standard sample WC-1 by utilizing the corrected isotope values; determining an age correction factor according to the test age and the recommended age of the age correction standard sample; correcting the test age of the calcite sample to be detected and the test age of the verification standard sample WC-1 by using the age correction factor to obtain the final age of the calcite sample to be detected and the final age of the verificationstandard sample WC-1; and judging whether the test result is valid or not according to whether the final age of the verification standard sample WC-1 is within the recommended age range or not.
Owner:PETROCHINA CO LTD

Novel nephropathy detection kit

ActiveCN109596819AAvoid spillingAvoid interminglingBiological testingEngineeringTest tube
The invention relates to a novel nephropathy detection kit. The problem that the existing nephropathy detection kit has no functions of clamping and positioning a test tube and separately sealing thetest tube is solved. A technical scheme for solution is as follows: a clamping device for clamping the test tube is arranged in a test tube groove of the novel nephropathy detection kit, when a patient places an urine test tube in the test tube groove, the urine test tube can be clamped and positioned; multiple test tube plugs are arranged at a lower end surface of a cover plate of the nephropathydetection kit; when the kit is filled with the test tube, a doctor on duty is responsible for covering the cover plate so that multiple test tube plugs at the lower end surface of the cover plate arejust plugged into the urine test tubes in the test tube groove, multiple urine test tubes can be sealed in single use, the operation is convenient and simple, the time is saved, and the working efficiency is improved.
Owner:HENAN UNIV OF CHINESE MEDICINE

Verification sample of liquid ability containing niacinamide, and preparation method

An ability verification sample of liquid containing niacinamide is composed of 4 - 9 liquid samples as their concentration being presented in equal ratio relation. The equal ratio coefficient between liquid samples is 0.60 - 0.95 and samples solvent is 0.9 % sodium chloride - normal saline. The method for preparing the samples is also disclosed.
Owner:秦成 +2

Feedback regulator and process of large load, double hydraulic cylinder and cychronous operation

The present invention discloses a feedback regulator and regulation process of great load, double hydraulic cylinder and sync operation for testing subsurface tool stress, and belongs to the field of vertical double hydraulic cylinder sync controlling technology. The feedback regulator includes high precision angle sensor and sync controller set on the walking beam, and two proportion regulating valve set in the oil path of the hydraulic cylinder. The regulation process includes the data acquisition of the angle sensor, judgment and operation of the sync controller and the execution of the proportion regulating valve while maintaining the sync of the two hydraulic cylinders. The present invention has the advantages of simple and fast regulator and regulation process, displacement difference within 1 mm in the walking beam stroke of 0-4 m, balanced stress of the tested tool and creditable test result.
Owner:TIANJIN UNIV

Method for testing permeation effect of prime coat emulsified asphalt

InactiveCN104048901AEasy to distinguishPenetration rate is reliableSurface/boundary effectIndex testPermeation
The invention discloses a method for testing a permeation effect of prime coat emulsified asphalt. The method is executed by a prime coat emulsified asphalt permeation effect tester and comprises the steps of adding 50 grams of homogenized standard sand into a 50-millimeter bottom-free glass measuring cylinder of the tester, diluting the standard sand by adding water, adjusting the standard sand into 45 percent emulsified asphalt, adding 7 grams of the emulsified asphalt into the measuring cylinder for permeation for 10 minutes, opening a movable carrying plate at the bottom of the bottom-free measuring cylinder of the tester to enable the non-adhered homogenized standard sand to fall off, weighing the mass of the non-adhered homogenized standard sand, calculating the volume of the homogenized standard sand permeating into the emulsified asphalt, and calculating and estimating the permeation speed of the emulsified asphalt. Prime coat emulsified asphalt products with different permeation capacities can be effectively distinguished, so that whether the products can be used for highway semirigid base-layer prime coat construction can be evaluated. The method is easy to operate, accurate in metering and credible in result; the outstanding technical difficulties that the prime coat emulsified asphalt home and abroad at present cannot be subjected to qualitative and quantitative permeation index test in actual engineering application are effectively solved; and the method for testing the permeation effect of the prime coat emulsified asphalt has popularization and application value.
Owner:河南省嵩阳高速公路有限公司 +1

Temporary plugging ball evaluation device and method for testing plugging performance of temporary plugging ball

ActiveCN111024525AComprehensive closureSimple evaluation resultsNuclear energy generationStrength propertiesTemperature controlEvaluation result
The invention discloses a temporary plugging ball evaluation device and a method for testing the plugging performance of a temporary plugging ball by using the same. The evaluation device comprises astorage bin, a cut-off valve, a flow guide chamber, a test cylinder and a pressure relief pipe which are sequentially connected from upstream to downstream, and a flowing channel allowing temporary plugging balls to sequentially flow is formed between the storage bin, the cut-off valve, the flow guide chamber and the test cylinder. The storage bin is used for storing temporary plugging balls and connected with a first water injection pipeline, and the first water injection pipeline is connected with the fluid pump. The stop valve is used for controlling the on-off state of a flow channel between the storage bin and the flow guide chamber. A second water injection pipeline, an overflow pipeline and a pressure relief pipeline are connected to the flow guide chamber, and the second water injection pipeline is connected with the fluid pump; at least one shot hole is formed in the periphery of the testing cylinder, the outer end of each shot hole is connected with a liquid discharging pipeline, and a temperature control structure is arranged on the periphery of the testing cylinder. The pressure relief pipe is connected to the tail end of the test cylinder, and a pressure relief valve is connected to the pressure relief pipe. The evaluation result of the method is objective, accurate and reliable, and the method is beneficial to accurately, reliably and effectively guiding the formulation and implementation of the subsequent fracturing process.
Owner:CHINA PETROLEUM & CHEM CORP +1

Solar Module Static Pressure Testing Machine

The invention provides a solar module static pressure testing machine. The solar module static pressure testing machine comprises an L-shaped supporting plate, a flexible mechanism which is in sliding connection with the supporting plate, and a solar module and a pressuring device which are fixedly installed on the flexible mechanism; the flexible mechanism is obliquely arranged on the supporting plate; a left frame and a right frame of the solar module are fixedly connected with the flexible mechanism; the pressuring device comprises a storage bag which is in a fixed shape, fixed pulleys and a pull belt; the storage bag is arranged on the upper surface of the solar module; the fixed pulleys are installed at the upper end and the lower end of the flexible mechanism; the upper end of the pull belt is fixedly connected with the upper portion of the storage bag and the lower end is fixedly connected with the lower frame of the solar module through the fixed pulleys; the storage bag is in a flat cube shape. The solar module static pressure testing machine can effectively stimulate the static compressive intensity under different inclination angle conditions, the static compressive intensity is more close to the press conditions to the solar module from ice and snow gravity under a natural state, and a testing result is accurate and credible.
Owner:EGING PHOTOVOLTAIC TECHNOLOGY CO LTD

Three-tap type discharge coil differential pressure detection device and method

The invention provides a three-tap type discharge coil differential pressure detection device and method. The detection device comprises a control module, a boosting module and a detection module. The control module is respectively connected with an external power supply and the boosting module, the boosting module is connected with a primary winding of a three-tap type discharge coil, and the detection module is connected with a secondary winding of the three-tap type discharge coil. According to the method, the voltage values of two coils on a primary winding and the differential voltage value of two coils on a secondary winding of a discharge coil in a normal state are calculated according to a capacitor bank, then the output voltage of a control module is calculated and adjusted, then the detected differential voltage value and the calculated differential voltage value are compared, and the state of the discharge coil is judged. Whether the discharge coil has a fault or not can be simply and quickly judged, the test result is real and credible, whether the performance parameters of the discharge coil meet the regulation requirements or not is detected, and reference can be provided for setting of a fixed value of differential pressure protection of a parallel capacitor bank.
Owner:广西电网有限责任公司崇左供电局

Test method for penetration effect of emulsified asphalt in permeable layer

InactiveCN104048901BEasy to distinguishPenetration rate is reliableSurface/boundary effectIndex testAsphalt
The invention discloses a method for testing a permeation effect of prime coat emulsified asphalt. The method is executed by a prime coat emulsified asphalt permeation effect tester and comprises the steps of adding 50 grams of homogenized standard sand into a 50-millimeter bottom-free glass measuring cylinder of the tester, diluting the standard sand by adding water, adjusting the standard sand into 45 percent emulsified asphalt, adding 7 grams of the emulsified asphalt into the measuring cylinder for permeation for 10 minutes, opening a movable carrying plate at the bottom of the bottom-free measuring cylinder of the tester to enable the non-adhered homogenized standard sand to fall off, weighing the mass of the non-adhered homogenized standard sand, calculating the volume of the homogenized standard sand permeating into the emulsified asphalt, and calculating and estimating the permeation speed of the emulsified asphalt. Prime coat emulsified asphalt products with different permeation capacities can be effectively distinguished, so that whether the products can be used for highway semirigid base-layer prime coat construction can be evaluated. The method is easy to operate, accurate in metering and credible in result; the outstanding technical difficulties that the prime coat emulsified asphalt home and abroad at present cannot be subjected to qualitative and quantitative permeation index test in actual engineering application are effectively solved; and the method for testing the permeation effect of the prime coat emulsified asphalt has popularization and application value.
Owner:河南省嵩阳高速公路有限公司 +1

Feedback regulator and process of large load, double hydraulic cylinder and cychronous operation

The invention discloses a feedback adjustment device and method for the synchronous operation of large-load dual hydraulic cylinders used in a force testing device for downhole tools, which belongs to the control technology for synchronous operation of vertically placed dual hydraulic cylinders. The feedback adjustment device is composed of a high-precision angle sensor arranged on the traveling beam, a synchronous controller and two proportional regulating valves arranged on the oil circuit of the hydraulic cylinder. The adjustment method includes the data acquisition of the angle sensor, the judgment and calculation of the synchronous regulator and the execution of the proportional control valve, so as to keep the movement displacement of the pistons of the two liquid cylinders tending to be synchronized. The invention has the advantages that the adjusting device and method are simple and fast, and the displacement difference between the two ends of the traveling crossbeam is less than 1mm within the stroke of 0-4m, thereby ensuring the force balance of the tested tool and reliable test results.
Owner:TIANJIN UNIV

Evaluation method of multimedia message service user perception and experience QoE for simulating user behavior

The invention discloses an evaluation method of multimedia message service user perception and experience QoE for simulating user behavior. The method comprises the steps of firstly setting a multimedia message service QoE evaluation index system including sending and receiving two types of user perception and experience parameters, in terms of service access, service maintenance and service completion, through multimedia message, then adopting a test terminal to simulate the process of sending and receiving multimedia message by the user, respectively gathering and computing key performance indexes KPI of the two types of user perception and experience of the multimedia message service, further computing corresponding key quality indexes KQI of the multimedia message service, adopting a mental model to perform comprehensive operation to KQI, so as to obtain key experience indexes KEI of the corresponding multimedia message service, and then performing comprehensive analysis to the KEI indexes, so as to obtain 5-point system multimedia message service QoE values equivalent to international standard mean opinion score MOS. The method has the advantages that the evaluation parameter standard is objective and practical, the operation steps are simple, the computation complexity is low, and the method is easy to realize, and can simulate the user behavior to obtain objective and fair user perception and experience quality.
Owner:北京东方文骏软件科技有限责任公司 +1

Road basal pelletized material mixture resilient modulus indoor test method and device

The invention discloses a road base gravel mixture rebound modulus indoor test method. The steps include that first, test materials are added in a test tube. The second step is sample static pressure molding. The third step is to arrange a miniature bearing plate on the surface of the sample. The fourth step is loading, unloading and rebound modulus test implementation. The fifth step is to read deformation amount. The sixth step is to take a rebound modulus value. The seventh step is to process test data. And the rebound modulus value is obtained. The invention is characterized in that firstly the test tube value taken formula is that the ratio of the diameter of the test tube to the maximum grain size=D / dmax. And the ratio is larger than five. Secondly, the diameter of the bearing plateis three times of the gravel maximum grain size. Thirdly, the mode of the rebound modulus test is that a jack is arranged on the bearing plate. The rebound modulus test is implemented through loadingand unloading with a reaction frame. The loading amount is controlled by a test-force ring. The invention also discloses a rebound modulus indoor test device. The invention has the technical effects of strong adaptability, convenient operation and credible test results, which can be applied to general scientific research colleges and design and construction units.
Owner:CHONGQING JIAOTONG UNIVERSITY

A method for evaluating behavioral safety of autonomous vehicles

The invention discloses a method for evaluating the behavior safety of an automatic driving vehicle, comprising: obtaining environmental perception parameters, network connectivity parameters, judgment decision parameters, control execution parameters and network connection degree coefficients of the automatic driving vehicle; according to the environmental perception parameters, The network connection parameters, the judgment and decision parameters, the control execution parameters and the network connection degree coefficient are used to obtain the evaluation score of the behavior safety of the self-driving vehicle; according to the evaluation score of the behavior safety of the self-driving vehicle, the Evaluation results of behavioral safety of autonomous vehicles. The method for evaluating behavioral safety of autonomous vehicles of the present invention can comprehensively consider the behavioral safety of autonomous vehicles from multiple perspectives, making the evaluation results accurate and reliable, thereby providing a feasible method for testing and evaluating behavioral safety of autonomous vehicles. Improve the relevant testing standards and promote the development of my country's self-driving vehicle industry.
Owner:中国软件评测中心(工业和信息化部软件与集成电路促进中心)

Mechanical fuel pump durability test bench for gasoline engine

PendingCN111365157AMeet the endurance fatigue test requirementsIntelligent monitoring of pressure valuesEngine testingFuel injection apparatusGasolineElectric machinery
The invention discloses a mechanical fuel pump durability test bench for a gasoline engine. The test bench comprises a motor device, a belt transmission device, a gasoline engine cylinder cover-camshaft device, an oil supply device, a cooling device, a lubricating device, a measuring device and a control device; the motor device, the belt transmission device, the gasoline engine cylinder cover-camshaft device, the oil supply device, the cooling device, the lubricating device, the measuring device and the control device are all arranged on the test bench, and the motor device is connected withthe gasoline engine cylinder cover-camshaft device through the belt transmission device, the oil supply device, the cooling device and the lubricating device are connected to the gasoline engine cylinder cover-camshaft device through pipelines, the measuring device is connected to the oil supply device and is used for measuring the fuel pressure and the oil quantity, and the measuring device is electrically connected with the control device. The mechanical fuel pump durability test bench is mainly used for oil pressure and flow monitoring of the mechanical fuel pump, and meets the endurance fatigue test requirements of the fuel pump. The mechanical fuel pump durability test bench can drive six tested mechanical fuel pumps to work at the same time, and the requirements of low energy consumption and high efficiency are met.
Owner:MERCURY MARINE TECH (SUZHOU) CO LTD

Three-support point porcelain bushing vibration detector

The invention provides a three-support point porcelain bushing vibration detector. The three-support point porcelain bushing vibration detector comprises an insulating rod and an auxiliary support apparatus. The upper end of the insulating rod is provided with a portable porcelain post insulator charged flaw detector. The lower end of the auxiliary support apparatus is connected to the portable porcelain post insulator charged flaw detector or the insulating rod. When a porcelain bushing is detected by the portable porcelain post insulator charged flaw detector, the upper end of the auxiliary support apparatus and two probes of the portable porcelain post insulator charged flaw detector can simultaneously contact with the cylindrical surface of the porcelain bushing. A test result shows that the three-support point porcelain bushing vibration detector is trusted. The three-support point porcelain bushing vibration detector can be operated simply, has high detection efficiency and is convenient for detection of various types of porcelain bushings.
Owner:NORTH CHINA ELECTRICAL POWER RES INST +3

Method for testing and adjusting cluster storage system performance based on synchronous strategy

ActiveCN102291449BMonitor read and write performanceEasy to spot performance bottlenecksData switching networksComputer hardwareData node
The invention provides a method for testing and adjusting cluster storage system performance based on a synchronous strategy. The method comprises a data node module group, a control module group and a client node module group, wherein the three module groups cooperate and communicate with each other, and take the control module group as the core to finish the system test and monitoring tasks together; the control module group is used for scheduling load and balancing all modules, and collecting the test result and synchronizing the time of all modules; the data node module group is used for collecting the data node monitoring information and realizing time synchronization; and the client node module group is used for simulating the read / write operation, collecting the monitored data of the client node and realizing time synchronization.
Owner:LANGCHAO ELECTRONIC INFORMATION IND CO LTD
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