An automated performance testing system for piezoelectric micromotors

2006 ◽  
Author(s):  
P.J. Rayner ◽  
S.A. Wilson ◽  
R.W. Whatmore ◽  
M. Cain
Keyword(s):  
Performance Testing ◽  
Testing System

Network Performance Testing System Integrating Models for Automatic QoE Evaluation of Popular Services: YouTube and Facebook

2015 ◽  
Vol 81 (4) ◽  
pp. 1377-1397 ◽  
Author(s):  
Francisco Lozano ◽  
Gerardo Gómez ◽  
Mari-Carmen Aguayo-Torres ◽  
Carlos Cárdenas ◽  
Antonio Plaza ◽  
...  
Keyword(s):  
Network Performance ◽  
Performance Testing ◽  
Testing System

Experimental Analysis of Dynamic Modulus and Phase Angle of High Modulus Asphalt Mixture

2011 ◽  
Vol 243-249 ◽  
pp. 4220-4225
Author(s):  
Rui Bo Ren ◽  
Li Tao Geng ◽  
Li Zhi Wang ◽  
Peng Wang
Keyword(s):  
Phase Angle ◽  
Dynamic Modulus ◽  
Asphalt Mixture ◽  
Performance Testing ◽  
Asphalt Mixtures ◽  
Testing System ◽  
High Modulus ◽  
Temperature Performance ◽  
Different Temperatures ◽  
Confining Pressures

To study the mechanical properties of high modulus asphalt mixtures, dynamic modulus and phase angle of these two mixtures are tested with Simple Performance Testing System under different temperatures, loading frequencies and confining pressures. Testing results show the superiority of high modulus asphalt mixture in aspect of high temperature performance. Furthermore, the changing rules of dynamic modulus and phase angle are also discussed.

Basic Attention Measures as Predictors of Success in Flight Training

1974 ◽  
Vol 18 (1) ◽  
pp. 50-56 ◽  
Author(s):  
Robert A. North ◽  
Daniel Gopher
Keyword(s):  
Individual Differences ◽  
Performance Testing ◽  
Reaction Time Task ◽  
Flight Training ◽  
Testing System ◽  
Student Sample ◽  
Student Pilots ◽  
Preliminary Validation ◽  
Predicting Success ◽  
Flight Instructors

A two-stage study was conducted to assess the potential of a new methodological technique for measuring individual differences in basic attention capabilities and the validity of these differences in predicting success in flight training. A performance testing system included a digit-processing reaction-time task and a one-dimensional compensatory tracking task. Comparisons were made between separate and concurrent performances of these tasks, and simultaneous performances also included comparisons involving changes in task priorities. Results indicating consistent individual differences in basic attention capabilities suggest several dimensions for their description. A preliminary validation study compared scores for a group of 11 flight instructors and with a group of 32 student pilots. In addition, the student sample was dichotomized based on performance in training. There were reliable differences for both groups on combined task performance efficiency.

Research on Bench Test System for Vehicle ABS Performance

2013 ◽  
Vol 321-324 ◽  
pp. 1633-1636
Author(s):  
Ji Du He ◽  
Yong Jun Zheng ◽  
Yu Tan ◽  
Gang Wu ◽  
Zhao Feng Liu
Keyword(s):  
Asynchronous Motor ◽  
Performance Testing ◽  
Test System ◽  
Wheel Speed ◽  
Bench Test ◽  
Testing System ◽  
Energy Compensation ◽  
Speed Change ◽  
Systematic Structure ◽  
Bench Testing

According to the ideal wheel speed change curve during the ABS braking and the vehicle inertia electromechanical mixed analog principle, the bench testing system for vehicle ABS performance was designed. In order to improve the reliability of the wheel velocity detection and optimize the systematic structure, the method of using the free roller to detect wheel speed and the regenerative braking energy compensation of asynchronous motor were proposed. The results show that designed test bench system can achieve ABS performance testing.

Research and development of industrial real-time Ethernet performance testing system used for CNC system

2015 ◽  
Vol 83 (5-8) ◽  
pp. 1199-1207 ◽  
Author(s):  
Zuguang Huang ◽  
Tianliang Hu ◽  
Cheng Peng ◽  
Mingjiang Hou ◽  
Chengrui Zhang
Keyword(s):  
Research And Development ◽  
Real Time ◽  
Performance Testing ◽  
Testing System ◽  
Cnc System

Research on Hydraulic Components Test System Based on Proportional Control Technology

2014 ◽  
Vol 912-914 ◽  
pp. 744-747
Author(s):  
Yao Li ◽  
Jian Gang Yi
Keyword(s):  
Performance Testing ◽  
Test System ◽  
Testing System ◽  
Control Technology ◽  
System Construction ◽  
Hydraulic Systems ◽  
Proportional Control ◽  
Production Problem

Proportional control technology is widely used in many hydraulic systems. In order to measure the characteristics of hydraulic components, it is necessary to establish hydraulic components test system based on proportional control technology. In this paper, the test contents of hydraulic components are analyzed, the performance testing system is designed, the system construction is presented, and the computer test software is developed. The application results showed that the developed system has good value, which can not only be used directly in enterprise to solve the production problem, but also improve the utilization and reliability of hydraulic components.

Disquisition of Testing System for BMBS Vacuum Booster

2012 ◽  
Vol 190-191 ◽  
pp. 1351-1354
Author(s):  
Yan Shi ◽  
Yi Lu ◽  
Xue Ying Wang
Keyword(s):  
High Speed ◽  
Computer Control ◽  
Performance Testing ◽  
Test System ◽  
Testing System ◽  
Test Items ◽  
Sealing Performance ◽  
On Line ◽  
High Speed Data ◽  
Line Test

To solve the problem of testing BMBS (BLOW-OUT MONITORING AND BRAKE SYSTEM) vacuum booster performance, a double-station and on-line test system for BMBS vacuum booster was designed. It adopts high-speed data collection method and computer control technology. This system can test the performance in non-BMBS condition and BMBS condition. The test items mainly include dynamic characteristic and sealing performance under each condition. The double stations are independent and have no interference with each other. The system fills up the blank of performance testing about BMBS vacuum booster. To verify this system, experiments were conducted with the vacuum booster which installed the BMBS technology. The experiment results show that the system can do well in testing the performance of BMBS vacuum booster in high precision. The sealing performance resolution is 0.01kPa and the pressure resolution is 1N.

Environmental Performance Testing System for Thermostructure Materials Applied in Aeroengines

2006 ◽  
Vol 313 ◽  
pp. 183-0 ◽  
Author(s):  
Li Tong Zhang ◽  
Lai Fei Cheng ◽  
Xin Gang Luan ◽  
Hui Mei ◽  
Yong Dong Xu
Keyword(s):  
Environmental Performance ◽  
Thermal Stresses ◽  
Performance Test ◽  
Performance Testing ◽  
Ceramic Matrix Composites ◽  
Test Methods ◽  
Testing System ◽  
Matrix Composites ◽  
Innovative Methodology ◽  
Service Environments

The conventional ultimate performance test by applying a component in its true application (i.e., in an engine) is often very expensive and impractical when dealing with developmental materials. Simpler, less expensive, and more practical test methods must be utilized. The present work aims toward the applications of an innovative methodology for testing environmental performance of advanced Ceramic Matrix Composites (CMCs) in the presence of combined mechanical, thermal, and environmental applied conditions. To obtain a comprehensive understanding of how a composite might perform in certain application environments, a newly developed environmental performance testing system, which is able to provide the fundamental damage information of the composites in simulating service environments including variables such as temperature, mechanical and thermal stresses, flowing oxidizing gases and high gas pressure, is proposed. The system comprises of two subsystems: (1) equivalent experimental simulating subsystem, and (2) wind tunnel experimental simulating subsystem. The evolution mechanisms of the composites properties and microstructures can be achieved by the former, and then be validated and modified by the latter. Various loading (e.g. fatigue, creep), various atmospheres (e.g. argon, oxygen, water vapor, wet oxygen and molten salt vapor) and various temperature conditions (e.g. constant or cyclic temperatures) can be conducted on the system. Some typical experimental results are presented in this paper. Large quantities of tests have demonstrated the extraordinary stability and reliability of the system.

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