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Testing method of rock structural plane using digital drilling 认领 引用 被引量：6
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作者 Qi Wang Yuncai Wang +4 位作者 Bei Jiang Hongke Gao Fenglin Ma Dahu Zhai Songlin Cai 《Journal of Rock Mechanics and Geotechnical Engineering》 SCIE CSCD 2024年第7期2563-2578,共16页
The rock mass consists of rock blocks and structural planes,which can reduce its integrity and strength.Therefore,accurately obtaining the characteristics of the rock mass structural plane is a prerequisite for evalua... The rock mass consists of rock blocks and structural planes,which can reduce its integrity and strength.Therefore,accurately obtaining the characteristics of the rock mass structural plane is a prerequisite for evaluating stability and designing supports in underground engineering.Currently,there are no effective testing methods for the characteristic parameters of the rock mass structural plane in underground engineering.The paper presents the digital drilling technology as a new testing method of rock mass structural planes.Flawed rock specimens with cracks of varying widths and angles were used to simulate the rock mass structural planes,and the multifunctional rock mass digital drilling test system was employed to carry out the digital drilling tests.The analysis focuses on the variation laws of drilling parameters,such as drilling pressure and drilling torque,affected by the characteristics of prefabricated cracks,and clarifies the degradation mechanism of rock equivalent compressive strength.Additionally,an identification model for the characteristic parameters of rock mass structural planes during drilling is established.The test results indicate that the average difference of the characteristics of prefabricated cracks identified by the equivalent compressive strength is 2.45°and 0.82 mm,respectively.The identification model while drilling is verified to be correct due to the high identification accuracy.Based on this,a method for testing the characteristic parameters of the surrounding rock structural plane while drilling is proposed.The research offers a theoretical and methodological foundation for precise in situ identification of structural planes of the surrounding rock in underground engineering. 展开更多
关键词 Structural planes in the rock mass Digital drilling Drilling parameters Equivalent compressive strength Testing method
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Theoretical model and testing method for ball indentation based on the proportional superposition of energy in pure elasticity and pure plasticity 认领 引用 被引量：4
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作者 Shuqian SI Lixun CAI +2 位作者 Hui CHEN Chen BAO Xiaokun LIU 《Chinese Journal of Aeronautics》 SCIE EI CAS CSCD 2022年第2期141-153,共13页
For a homogeneous,continuous,and isotropic material whose constitutive relationships meets with the Ramberg-Osgood law(R-O law),the energy in the elastoplastic indentation with a ball indenter was theoretically analyz... For a homogeneous,continuous,and isotropic material whose constitutive relationships meets with the Ramberg-Osgood law(R-O law),the energy in the elastoplastic indentation with a ball indenter was theoretically analyzed,and the proportional superposition of energy in pure elasticity and pure plasticity during indentation was considered based on the equivalence of energy density.Subsequently,a Proportional Superposition-based Elasto Plastic Model(PS-EPM)was developed to describe the relationships between the displacement and the load during the ball indentation.Furthermore,a new test method of Ball Indentation based on Elastoplastic Proportional Superposition(BI-EPS)was developed to obtain the constitutive relationships of R-O law materials.The load–displacement curves predicted using the PS-EPM model were found to agree closely with the Finite Element Analysis(FEA)results.Moreover,the stress vs.strain curves predicted using the BI-EPS method were in better agreement with those obtained by FEA.Additionally,ball indentation was performed on eleven types of metal materials including five types of aluminum alloys and six types of steel.The test results showed that the stress vs.strain relationships and the tensile strength values predicted using the proposed BI-EPS method agreed well with the results obtained using conventional uniaxial tensile tests. 展开更多
关键词 Ball indentation Energy density Proportional superposition of elasticity and plasticity Stress vs.strain relationships Testing method Theoretical model
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Research on the Testing Methods of Instrumental System in the Marine Magnetic Survey 认领 引用 被引量：1
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作者 边刚 刘雁春 +2 位作者 于波 肖付民 卞光浪 《Marine Science Bulletin》 2007年第2期1-11,共11页
Testing methods of instrumental system in the marine magnetic survey have been studied in this paper, and the feasibility of each method has been testified by the observed data. The conclusion shows that the method br... Testing methods of instrumental system in the marine magnetic survey have been studied in this paper, and the feasibility of each method has been testified by the observed data. The conclusion shows that the method brought out can effectively eliminate the systematic error caused by the instrumental system, and greatly improve the surveying precision and the reliability of the survey results. 展开更多
关键词 Marine magnetic survey instrumental system testing method
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Testing methods for 1100 kV UHVDC transformer 认领 引用 被引量：2
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作者 Thomas Hammer Rene Wimmer +1 位作者 Karsten Loppach Ronny Fritsche 《Global Energy Interconnection》 2018年第2期103-107,共5页
1 Development of UHVDC transmission capabilities The economical development of China is closely connected with safe and reliable power supply.Load centers e.g.in central and eastern China need huge amounts of electric... 1 Development of UHVDC transmission capabilities The economical development of China is closely connected with safe and reliable power supply.Load centers e.g.in central and eastern China need huge amounts of electrical power.Available energy resources and consumption areas are often distributed inverse.As a consequence it is necessary to import electrical power to load center areas in an economic and efficient way. 展开更多
关键词 UHVDC In Testing methods for 1100 kV UHVDC transformer
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A Mini Review on Testing Methods for Mechanical Properties of Natural Fibre Honeycomb Sandwich Structure and Fractography Analysis 认领 引用 被引量：1
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作者 Nahiyan Al-Azad Nur Hafidah Binti Dedifitrianto Mohd. Kamal Mohd. Shah 《Journal of Materials Science and Chemical Engineering》 2021年第5期29-38,共10页
This paper is a review of the past research of mechanical testing methods for natural fibre honeycomb sandwich structure as well as failure modes analysis at a microscopic level by using Scanning Electron Microscope (... This paper is a review of the past research of mechanical testing methods for natural fibre honeycomb sandwich structure as well as failure modes analysis at a microscopic level by using Scanning Electron Microscope (SEM). As the world is garnering attention towards renewable resources for environmental purposes, studies of natural fibre have been increasing as well as the application of natural fibre throughout various industries such as aerospace, automobiles, and construction sectors. This paper is started with brief information regarding the honeycomb sandwich structure, introduction to natural fibre, its applications as well as the factors affecting the performances of the structure. Next, the mechanical testing methods are listed out as well as the expected outcomes obtained from the respective testing. The mechanical properties are also identified by conducting lab tests according to the ASTM standard for sandwich and core structures. The microstructure of the deformed samples is then examined under Scanning Electron Microscope (SEM) by using different magnifications to study the failure mechanisms of the samples. The images obtained from the SEM test are analyzed by using fractography which will show the failure modes of the samples. This article is based on past research conducted by professional on the related topic. 展开更多
关键词 Natural Fibre Honeycomb Sandwich Structure Testing Methods ASTM Standard SEM Test
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A comprehensive testing method for global stability analysis of high arch dams 认领 引用 被引量：6
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作者 Lin Zhang Yuan Chen +2 位作者 Baoquan Yang Jianye Chen Chengqiu Hu 《Journal of Rock Mechanics and Geotechnical Engineering》 2012年第1期73-81,共9页
Hydropower projects are rapidly developing in China at present, and a number of high daras and large reservoirs are currently under construction or will soon be built. These large projects are mainly located on the gr... Hydropower projects are rapidly developing in China at present, and a number of high daras and large reservoirs are currently under construction or will soon be built. These large projects are mainly located on the great rivers in West China with complicated topographical and geological conditions. Evaluation of stability and safety of these high dam projects is an important topic. Geomechanical model test is one of the main methods to study the global stability of high dam and foundation. In this paper, a comprehensive testing method that combines overloading and strength reduction in a model is proposed. In this method, both the influence of excessive flooding and the effects of strength reduction of rock masses and weak structural planes on dam stability are considered. Thus, the comprehensive testing method can accurately incorporate multiple factors that affect the global stability of high dam and its foundation. Based on the failure testing principle and model similarity theory, a similarity relation formula for safety evaluation through comprehensive test is established. A new model material, temperature-dependent analogous material, is also developed. By rising the temperature and reducing the strength of the mod,~l material, the mechanical behaviors resulting from gradual strength reduction can be simulated. Thus, the comprehensive testing method is realized in a single model. For case studies, the comprehensive geomechanical model test is conducted for Jinpinlg I and Xiaowan high arch dam projects. 展开更多
关键词 geomechanical model comprehensive testing method temperature-dependent analo~ ous material engineeringapplication
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Warm Compaction Process of P/M Steels by Orthogonal Testing Method 认领 引用
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作者 叶途明 YI Jianhong +2 位作者 PENG Yuandong XIA Qinglin WANG Hongzhong 《Journal of Wuhan University of Technology(Materials Science)》 SCIE EI CAS 2008年第1期105-108,共4页
In order to achieve higher density of P/M steels using the die wall lubrication compacting method or powder lubricant in warm compaction process, the influence of different process parameters on the green density of w... In order to achieve higher density of P/M steels using the die wall lubrication compacting method or powder lubricant in warm compaction process, the influence of different process parameters on the green density of warm compacted samples was studied. According to the orthogonal test method, the authors systematically study the influence of the different compaction pressure, condition of lubrication and compaction temperature on the green density of the sample in the warm compaction process, and put forward the optimal process parameter of warm compaction experiment. It is found that, a high compaction pressure （≥700 MPa）, die wall lubrication combined with a small amount of internal lubricants, and fitting compaction temperature by different condition of lubrication, are the optimal parameters in warm compaction process. 展开更多
关键词 warm compaction orthogonal test method die wall lubrication particle rearrangement plastic deformation
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Research on the Computer Software Testing Method Based on Multiple Platforms 认领 引用
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作者 Yongfang Sun Jianjun Li 《Journal of Computer Science Research》 2020年第3期6-9,共4页
Informationization plays an important role in modern life and production.And various software is one of the bases for it.Before it goes into service,software needs to go through many steps,including software developme... Informationization plays an important role in modern life and production.And various software is one of the bases for it.Before it goes into service,software needs to go through many steps,including software development,design,etc.In software development,test is the key to identify and control bugs and errors in the software.Therefore,software companies often test the software to ensure that it is qualified.In recent years,more attention has been paid to a multi-platform computer software testing method,which can make up for defects in traditional testing methods to improve test accuracy.Firstly,this paper illustrates the connotation and features of software testing.Secondly,common software testing platforms and their requirements are analyzed.Finally,this paper proposes software testing method based on multiple platforms. 展开更多
关键词 Multiple platforms Computer software Testing method
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Analysis on the Importance of Geological Experiment Testing Method in Geological Prospecting Work 认领 引用
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作者 QIAO Gang 《外文科技期刊数据库（文摘版）工程技术》 2021年第9期832-834,共3页
Recently, with the acceleration of economic development, the geological industry also has been greatly improved, all types of drilling, trenching, pitting task number is still growing, so in terms of geological prospe... Recently, with the acceleration of economic development, the geological industry also has been greatly improved, all types of drilling, trenching, pitting task number is still growing, so in terms of geological prospecting must further enhance the technology, realize the goal of sustainable development to create favorable conditions for geological industry. Although reserves of mineral resources in China is very rich, but is detected so far is only the tip of the iceberg, the development of geological prospecting is difficult, in order to further enhance the work efficiency and quality level must be from the aspects of geological experimental test, the role of it in geological prospecting exploration play to the greatest extent. 展开更多
关键词 geological prospecting geological experiment test method importance exploration and analysis
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Provenance of Coloured Gemstones-Availability,Testing Methods,Future Trends 认领 引用 被引量：1
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作者 Lore Kiefert Klemens Link 《宝石和宝石学杂志》 2018年第S1期145-146,共2页
Gemstones have fascinated mankind forever,and people traveled far to find them.The Silk Road is one of the most traditional trade routes in the middle ages that was used to bring the precious stones to the European ma... Gemstones have fascinated mankind forever,and people traveled far to find them.The Silk Road is one of the most traditional trade routes in the middle ages that was used to bring the precious stones to the European market.Later,emeralds from Colombia were shipped via the ocean to the Old World. 展开更多
关键词 Provenance of Coloured Gemstones-Availability,Testing Methods,Future Trends
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The Development and Standardization of Testing Methods for Genetically Modified Organisms and their Derived Products 认领 引用 被引量：35
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作者 Dabing Zhang Jinchao Guo 《Journal of Integrative Plant Biology》 SCIE CAS CSCD 2011年第7期539-551,共13页
As the worldwide commercialization of genetically modified organisms(GMOs)increases and consumers concern the safety of GMOs,many countries and regions are issuing labeling regulations on GMOs and their products.Analy... As the worldwide commercialization of genetically modified organisms(GMOs)increases and consumers concern the safety of GMOs,many countries and regions are issuing labeling regulations on GMOs and their products.Analytical methods and their standardization for GM ingredients in foods and feed are essential for the implementation of labeling regulations.To date,the GMO testing methods are mainly based on the inserted DNA sequences and newly produced proteins in GMOs.This paper presents an overview of GMO testing methods as well as their standardization. 展开更多
关键词 DNA genetically modified organisms protein standardization testing methods
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A review of test methods for uniaxial compressive strength of rocks:Theory,apparatus and data processing 认领 引用 被引量：2
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作者 Wei-Qiang Xie Xiao-Li Liu +2 位作者 Xiao-Ping Zhang Quan-Sheng Liu En-ZhiWang 《Journal of Rock Mechanics and Geotechnical Engineering》 SCIE CSCD 2025年第3期1889-1905,共17页
The uniaxial compressive strength(UCS)of rocks is a vital geomechanical parameter widely used for rock mass classification,stability analysis,and engineering design in rock engineering.Various UCS testing methods and ... The uniaxial compressive strength(UCS)of rocks is a vital geomechanical parameter widely used for rock mass classification,stability analysis,and engineering design in rock engineering.Various UCS testing methods and apparatuses have been proposed over the past few decades.The objective of the present study is to summarize the status and development in theories,test apparatuses,data processing of the existing testing methods for UCS measurement.It starts with elaborating the theories of these test methods.Then the test apparatus and development trends for UCS measurement are summarized,followed by a discussion on rock specimens for test apparatus,and data processing methods.Next,the method selection for UCS measurement is recommended.It reveals that the rock failure mechanism in the UCS testing methods can be divided into compression-shear,compression-tension,composite failure mode,and no obvious failure mode.The trends of these apparatuses are towards automation,digitization,precision,and multi-modal test.Two size correction methods are commonly used.One is to develop empirical correlation between the measured indices and the specimen size.The other is to use a standard specimen to calculate the size correction factor.Three to five input parameters are commonly utilized in soft computation models to predict the UCS of rocks.The selection of the test methods for the UCS measurement can be carried out according to the testing scenario and the specimen size.The engineers can gain a comprehensive understanding of the UCS testing methods and its potential developments in various rock engineering endeavors. 展开更多
关键词 Uniaxial compressive strength(UCS) UCS testing methods Test apparatus Data processing
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Compliance-based testing method for fatigue crack propagation rates of mixed-modeⅠ-Ⅱcracks 认领 引用
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作者 QI Shuang XIANG WenXin +5 位作者 CAI LiXun LIU XiaoKun SHAO ChunBing NING FangMao SHI JinHua YU WeiWei 《Science China(Technological Sciences)》 SCIE EI CAS CSCD 2021年第12期2577-2585,共9页
Mixed-mode I-II crack-based fatigue crack propagation(FCPⅠ-Ⅱ)usually occurs in engineering structures;however,no theoretical formula or effective compliance test methods have been established for FCPI-IIto date.For ... Mixed-mode I-II crack-based fatigue crack propagation(FCPⅠ-Ⅱ)usually occurs in engineering structures;however,no theoretical formula or effective compliance test methods have been established for FCPI-IIto date.For mixed-mode I-II flawed components,based on the principle of mean-value energy equivalence,we propose a theoretical method to describe the relationship between material elastic parameters,geometrical dimensions,load(or displacement),and energy.Based on the maximum circumferential stress criterion,we propose a uniform compliance model for compact tensile shear(CTS)specimens with horizontal cracks deflecting and propagating(flat-folding propagation)under different loading angles,geometries,and materials.Along with an innovative design of the fixture of CTS specimens used for FCPI-IItests,we develop a new compliancebased testing method for FCPⅠ-Ⅱ.For the 30Cr2Ni4MoV rotor steel,the FCP rates of modeⅠ,modeⅡ,and mixed-modeⅠ-Ⅱcracks were obtained via FCP tests using compact tension,Arcan,and CTS specimens,respectively.The obtained da/d N versusΔJ curves of the FCP rates are close.The loading angleαand dimensionless initial crack length a0/W demonstrated negligible effects on the FCP rates.Hence,the FCP rates of mode I crack can be used to predict the residual life of structural crack propagation. 展开更多
关键词 finite element analysis mixed-modeⅠ-Ⅱcrack fatigue crack propagation rate energy equivalence principle testing method
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Application of the extended Fourier amplitude sensitivity testing(FAST)method to inflated,axial stretched,and residually stressed cylinders 认领 引用 被引量：2
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作者 H.ASGHARI H.TOPOL +1 位作者 B.MARKERT J.MERODIO 《Applied Mathematics and Mechanics(English Edition)》 SCIE EI CSCD 2023年第12期2139-2162,共24页
This paper is dedicated to applying the Fourier amplitude sensitivity test(FAST)method to the problem of mixed extension and inflation of a circular cylindrical tube in the presence of residual stresses.The metafuncti... This paper is dedicated to applying the Fourier amplitude sensitivity test(FAST)method to the problem of mixed extension and inflation of a circular cylindrical tube in the presence of residual stresses.The metafunctions and the Ishigami function are considered in the sensitivity analysis(SA).The effects of the input variables on the output variables are investigated,and the most important parameters of the system under the applied pressure and axial force such as the axial stretch and the azimuthal stretch are determined. 展开更多
关键词 sensitivity analysis(SA) Fourier amplitude sensitivity test(FAST)method cylindrical inflation nonlinear elasticity
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A new test method for friction in incremental sheet forming 认领 引用
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作者 Guang-can YANG Da-wei ZHANG +1 位作者 Chong TIAN Sheng-dun ZHAO 《Transactions of Nonferrous Metals Society of China》 SCIE EI CAS CSCD 2025年第12期3985-4006,共22页
An analytical model for contact area and contact stress considering the loading history in incremental sheet forming(ISF)was established.Then,by integrating with the directional characteristics of friction force and h... An analytical model for contact area and contact stress considering the loading history in incremental sheet forming(ISF)was established.Then,by integrating with the directional characteristics of friction force and horizontal force in the process,a friction test method reflecting the forming characteristics of ISF was proposed.Friction coefficients during the forming processes of parts with different wall angles were measured under various plane curves,process paths,and lubrication conditions.Furthermore,the accuracy of the analytical model,as well as the measured friction coefficients and their variation trends,was verified through comparative analysis with experimental results,simulation data,and outcomes from other existing models.The results indicate that the influence of the plane curve characteristics and process paths of parts on the friction condition is not significant.Under the lubrication conditions of L-HM46 oil,MoS2grease,graphite powder,and dry friction,the friction coefficient shows a gradually increasing trend.Notably,when the wall angle is≤40°,the friction coefficient remains relatively constant;however,when the wall angle exceeds 40°,the friction coefficient increases progressively. 展开更多
关键词 incremental sheet forming friction test method contact area friction coefficient forming force
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Drilling parameter acquisition and rock strength determination on rotary-percussive drilling for drill-and-blast excavation 认领 引用
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作者 Wendal Victor Yue Manchao He +3 位作者 Hehua Zhu Zhongwen Yue Sichen Long Mengjia Zhang 《Journal of Rock Mechanics and Geotechnical Engineering》 SCIE CSCD 2026年第6期4278-4298,共21页
Drill-and-blast excavation design requires a comprehensive understanding of the strength properties of the surrounding rock mass in the blast area.However,due to the absence of reliable methods for determining rock st... Drill-and-blast excavation design requires a comprehensive understanding of the strength properties of the surrounding rock mass in the blast area.However,due to the absence of reliable methods for determining rock strength in situ,blast designs commonly rely on laboratory test results derived from limited core samples.To address this limitation,this study proposes a novel method for estimating in situ rock compressive and tensile strengths using drilling monitoring data.Drilling monitoring is a technique that interprets the properties of the drilled medium through recorded drilling parameters.A rotary-percussive drilling test system was developed for this purpose,incorporating an actual rotary-percussive drill from a blasthole drill rig along with integrated monitoring systems.Importantly,a complete procedure for acquiring five key drilling parameters,including thrust force,rotation speed,torque,drilling rate,and percussive pressure are described.These parameters were used to calculate the drilling work done,defined as the energy required to excavate a unit volume of rock.The results indicate a nonlinear correlation between drilling work done and percussive pressure,which corresponds to the compressive and tensile strengths of the tested rocks.Furthermore,applying confining stress to rock samples was found to increase the drilling work done,reflecting a higher energy demand for drilling under confined conditions.This observation is consistent with rock mechanics principles,wherein rock strength increases under confining pressure.Thus,this study demonstrates that drilling monitoring tests can effectively indicate rock strength under in situ stress conditions.The findings offer practical implications for real-time in situ rock strength assessment,thereby bridging the gap between drilling monitoring research and rock mechanics applications. 展开更多
关键词 Drilling monitoring study Rotary-percussive drilling Drill-and-blast Geotechnical in situ testing method In situ rock strength
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Research on Software Security Testing Mode Based on Open Network Environment 认领 引用
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作者 Xiaoqing Jia 《Journal of Electronic Research and Application》 2025年第4期290-296,共7页
Starting with the goal and significance of software security testing,this paper introduces the main methods of software security testing in the open network environment,including formal security testing,white box test... Starting with the goal and significance of software security testing,this paper introduces the main methods of software security testing in the open network environment,including formal security testing,white box testing,fuzzy testing,model testing,and fault injection testing.A software security testing method based on a security target model is proposed.This paper provides new ideas for software security testing,better adapts to the open network environment,improves the efficiency and quality of testing,and builds a good software application environment. 展开更多
关键词 Network environment Software Safety performance Test method Safety protection
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Fast Charge Test Method for Battery Pack Systems with Thermal Management 认领 引用
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作者 Zidan Gong Jun Yang +1 位作者 Zhaoming Li Yuebing Feng 《Journal of Electronic Research and Application》 2025年第4期214-223,共10页
This paper introduces a kind of substitute bench testing method for vehicle application development and testing method of the test requirements,including battery fast conversion cycle test equipment,enter type incubat... This paper introduces a kind of substitute bench testing method for vehicle application development and testing method of the test requirements,including battery fast conversion cycle test equipment,enter type incubator,liquid-cooled machine and ancillary equipment composed of a set of test system,through the walk-in constant temperature box to simulate the new energy vehicles under different environmental conditions of the test requirements,Liquid-cooled machine and auxiliary parts to complete the battery thermal management system need cooling fluid conditions,the battery conversion cycle test equipment to simulate the dc fast charging way of filling pile,complete battery thermal management system test,shorten the filling fast charging time and improve battery fast charge security,for troubleshooting and data collection and analysis,Improve work efficiency,save costs,and eliminate customer anxiety about battery life and charging time. 展开更多
关键词 Thermal management battery pack system Fast-charging bench system Test method
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Field tests on compressive bearing capacity of cast-in-situ pile and pre-bored grouted PHC pile 认领 引用
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作者 Jiajin Zhou Rihong Zhang +2 位作者 Xiaonan Gong Jianlin Yu Tianlong Yan 《Journal of Rock Mechanics and Geotechnical Engineering》 SCIE CSCD 2026年第7期5759-5769,共11页
This paper presents a group of full-scale test results of cast-in-situ pile and pre-bored grouted prestressed high-strength concrete(PHC)pile(bored PHC pile)in deep soft soils.The pile shaft of castin-situ pile was ar... This paper presents a group of full-scale test results of cast-in-situ pile and pre-bored grouted prestressed high-strength concrete(PHC)pile(bored PHC pile)in deep soft soils.The pile shaft of castin-situ pile was arranged with strain sensors,and the bored PHC pile was arranged with both strain sensors and fiberoptic sensors.The side and base resistances of bored PHC pile and cast-in-situ pile were analyzed according to the fieldtest results.The research results showed that the 900 mmdiameter bored PHC pile revealed better compressive capacity compared to 1000 mm-diameter cast-insitu pile.The side resistance of bored PHC pile was also greater than that of cast-in-situ pile due to the existence of grout body.The expanding base grout body of bored PHC pile also improved its base resistance,as the base grouting process could increase base area and improve the properties of soil around pile base as well.The fieldtest results are valuable for the application of bored PHC pile and castin-situ pile in engineering practice. 展开更多
关键词 Cast-in-situ pile Bored pre-stressed high-strength concrete(PHC)pile Side resistance Base resistance Cone penetration test(CPT)method
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Design of the Testing System for Jet Elements 认领 引用
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作者 姚晓先 莫波 李亨标 《Journal of Beijing Institute of Technology》 EI CAS 2002年第3期225-228,共4页
To analyze the errors of processing data, the testing principle for jet elements is introduced and the property of testing system is theoretically and experimentally studied. On the basis of the above, the method of p... To analyze the errors of processing data, the testing principle for jet elements is introduced and the property of testing system is theoretically and experimentally studied. On the basis of the above, the method of processing data is presented and the error formulae, which are the functions of the testing system property, are derived. Finally, the methods of reducing the errors are provided. The measured results are in correspondence with the theoretical conclusion. 展开更多
关键词 jet elements error analysis data processing testing method
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