The Performance Testing System of Force Motor Valve

2014 ◽  
Vol 635-637 ◽  
pp. 1382-1385
Author(s):  
Dong Dong Chen ◽  
Kun Peng Jiang ◽  
Da Wei Jiang ◽  
Chao Jun Yang ◽  
Min Chen
Keyword(s):  
Performance Index ◽  
Performance Test ◽  
Characteristic Curve ◽  
Steel Production ◽  
Performance Testing ◽  
Fast Response ◽  
Test System ◽  
Static Characteristic ◽  
Servo Valve ◽  
Testing Method

Hitachi force motor valve has been widely used in the hydraulic automatic gauge control (AGC) system of rolling mill due to the characteristics of fast response, high control accuracy and strong anti-pollution ability. It is an important part to control the steel production cost by detecting the performance index of the FMV effectively and in real time. Traditional Servo valve test system detects its static characteristics through the flow and pressure changes between the traffic cavity, and this principle can solve the three position four way servo valve performance test. However, FMV is a special three-way valve and it is hard to test its static characteristic curve like three position four way servo valve. This paper proposes a FMV testing method and has realized it. The test platform is designed and built according to the hydraulic valve testing performance index for detecting the performance of a force motor valve. Not only were force motor valve (FMV) performance characteristics tested effectively but also the performance curves were drawn. The results show that the FMV performance testing method we have built can be effectively used to detect the static performance index of FMV.

The Research of Performance Test System of Seals in Hydraulic Support Column

2012 ◽  
Vol 468-471 ◽  
pp. 2542-2545
Author(s):  
Xi Zhang ◽  
Ping Zhao ◽  
Yu Bai
Keyword(s):  
Performance Test ◽  
Performance Testing ◽  
Hydraulic Cylinder ◽  
Test System ◽  
Testing System ◽  
Test Bed ◽  
Hydraulic Support ◽  
Practical Applications ◽  
Testing Method ◽  
Purchasing Process

In order to solve the problem that there is no appropriate testing method for the purchasing process of sealing washer in hydraulic support producing company at present, the author designed a test bed used to test the seal performance of hydraulic cylinder in the mine hydraulic support to provide database supports for purchasing sealing washer for hydraulic support manufacturers, by using the performance testing system of sealing washer worked upright column for hydraulic support. The introduction of the principles, constitutions and functions of the test bed will be shown in this paper. After a number of experiments, it is reflected by the practical applications that the test bed is operating stably, accurately and efficiently which could be used for testing sealing washer.

Design on High-Precision Condensation Water Measurement in Air Conditioner Performance Testing Chamber

2013 ◽  
Vol 427-429 ◽  
pp. 949-952
Author(s):  
Yuan Yuan Huang ◽  
Fang Wang ◽  
Yi Wei Xiong ◽  
Tian Wu Li ◽  
Yong Li Chen
Keyword(s):  
Performance Test ◽  
Performance Testing ◽  
Measuring Method ◽  
Cooling Capacity ◽  
Test System ◽  
Air Conditioner ◽  
Conservation Of Energy ◽  
Balance Principle ◽  
Testing Chamber ◽  
Water Measurement

Before putting air conditioner into market, it must be checked strictly by inspection department. Balanced ambient room-type calorimeter chamber is used to measure the conditioner performance according to energy balance principle. At present, the principle of conservation of energy is a method with higher accuracy for air conditioner test. In this paper, we focus on introducing the measuring method of condensed water in the test system after explaining the principle of the air conditioning performance test balanced ambient room-type calorimeter chamber. it is used to balance the capacity measured in evaporator air conditioner by controlling the water inflow of the humidifier. In this way, can we achieve precise measuring the cooling capacity of the air conditioner.

Signal Acquisition and Processing in Hydraulic Components Test System

2013 ◽  
Vol 846-847 ◽  
pp. 972-976
Author(s):  
Xiao Teng Zeng
Keyword(s):  
Signal Processing ◽  
Digital Signal Processing ◽  
Performance Test ◽  
Performance Testing ◽  
Digital Signal ◽  
Test System ◽  
Processing Method ◽  
Signal Acquisition ◽  
Performance Parameters ◽  
Signal Acquisition And Processing

The key to the performance test system for hydraulic components is to realize real, fast and accurate signal acquisition and processing. By analysis the analog and digital signal processing during hydraulic components Performance testing, a new signal flow scheme is proposed. It described in detail the acquisition and processing method of serial signals and PLC signals, thus solving the lag and distortion during signal processing and realizing the real-time display of data and the automatic report of performance parameters during hydraulic components testing process.

Study on the Test System of ERF's Performance

2013 ◽  
Vol 579-580 ◽  
pp. 813-817
Author(s):  
Xin Sheng He ◽  
Peng Huang ◽  
Kai Fei ◽  
Xiao Yi Zhang ◽  
Wei Zeng Chen ◽  
...  
Keyword(s):  
Shear Stress ◽  
Field Strength ◽  
Electric Field ◽  
Electric Field Strength ◽  
Apparent Viscosity ◽  
Performance Test ◽  
Performance Testing ◽  
Test System ◽  
Relationship Of ◽  
The Relationship

Electrorheological fluid (ERF) is a new kind of smart materials, which has a great deal of market value and broad application prospects. To meet the needs of the ERFs performance testing, design and produce of the ERF's performance test system are based on the relationship of the apparent viscosity, shear stress and electric field strength. Select the NDJ-8S digital viscometer, high voltage DC power supply, liquid container, and other parts to constitute the ERFs performance test system after considering the relationship of the apparent viscosity, shear stress, shear rate and electric field strength. The system has potentials to control voltage, change velocity, change the distance between the parallel panels, and test the yield stress of the ERF, shear stress, viscosity and other parameters. The study introduces the hardware and software device, the related experiments, and obtains the relationship of the viscosity, rotational speed, voltage, and plate gap.

Design of Hydraulic System for Electrohydraulic Servo Valve Test Bed

2013 ◽  
Vol 288 ◽  
pp. 84-87
Author(s):  
Dong Hai Su ◽  
Xiao Dong Tang
Keyword(s):  
Hydraulic System ◽  
High Efficiency ◽  
Performance Testing ◽  
Test System ◽  
Test Bed ◽  
Servo Valve ◽  
System A ◽  
Automated Test System ◽  
Static Performance ◽  
High Degree

According to the needs of the electrohydraulic servo valve dynamic and static performance testing, designed an automated test system for the test of the static characteristics and dynamic characteristics test combinations together. Its advantage includes a stable system, a high degree of automation, simple operation, and high efficiency, full-featured.

Design of Three Voltage Level Test System for Auto Sensor Based on LabVIEW

2011 ◽  
Vol 130-134 ◽  
pp. 4147-4151
Author(s):  
Jin Ming Tian ◽  
Lei Zhang ◽  
Cheng Long Gong ◽  
Lin Hai Ji
Keyword(s):  
Data Acquisition ◽  
Performance Test ◽  
Performance Testing ◽  
Test System ◽  
Signal Frequency ◽  
Measured Signal ◽  
Cycle Frequency ◽  
Voltage Level ◽  
Low Duty Cycle ◽  
Data Acquisition Card

A set of data acquisition terminal for automotive sensor three voltage level signal performance testing is designed. It is connected together to form a complete set of automotive sensor performance test monitoring system using NI-6259 data acquisition card and PC data collection terminal. The system can display real-time maximum, minimum and average of high voltage level, middle and low, duty cycle, frequency, and flipping or not. The measured signal frequency range is 1Hz~2.5 KHz. The measured data and the specified range of data interface is contrasted, automatically determined whether it is reasonable, and classified saved.

Application of Direct Actuated Digital Servo Valve in Electrohydraulic Static Loading System

2011 ◽  
Vol 130-134 ◽  
pp. 4098-4101
Author(s):  
Fa Ming Zhu ◽  
Sheng Li
Keyword(s):  
Control System ◽  
Static Loading ◽  
High Reliability ◽  
Fast Response ◽  
Static Characteristic ◽  
Large Power ◽  
Servo Valve ◽  
Static Testing ◽  
Loading System ◽  
Important Means

Structure static testing is an important means to study the static characteristic of complex engineering structure. Electrohydraulic stactic loading system is the singnificant equipment of the testing. With its function of transfering low-power electrical singal to large-power hydraulic output quickly and precisely, the servo valve plays a key role in an electrohydraulic servo control system and dominates to a large extent the performance of the whole control system. Conventional electrohydraulic servo or proportional control is subject to the nonlinearites of their electro-mechanical interface, such as hysteresis, saturation and finite resolution. In this paper, a direct actuated digital servo valve was applied in electrohydraulic static loading system. It can be driven directly by computer needn’t D/A and has the advantages of simple structure, high tolerance to contamination and high reliability. Practical load-experiment results show that the static loading system with a direct actuated digital servo valve can work steadily and reliably and possess high accuracy and fast response.

Development of the Performance Testing System for Radio Fuze

2011 ◽  
Vol 383-390 ◽  
pp. 661-666
Author(s):  
Ya Zhou Chen ◽  
Wang Lin
Keyword(s):  
Performance Test ◽  
Performance Testing ◽  
Dipole Antenna ◽  
Test System ◽  
Testing System ◽  
Performance Parameters ◽  
Plate Method ◽  
Performance Indexes ◽  
Frequency Meter ◽  
Security And Reliability

To assure the security and reliability of radio fuze, its performance must be test. A performance test system of radio fuze is developed, which is based on the theory of the pushing plate method according to the performance indexes written in the national military standard. The testing system which is composed of dipole antenna, frequency meter, multimeter and oscilloscope can test the main performance parameters of radio fuze. It is proved that the testing system can carry out the performance test of radio fuze steadily.

Design and Implementation of Hydraulic Torque Converter’s Performance Test System

2012 ◽  
Vol 446-449 ◽  
pp. 2603-2607
Author(s):  
Guo Fu Tian ◽  
Guo Wen Zhang ◽  
Yang Yang Qiao ◽  
Xian Feng Liu
Keyword(s):  
Data Analysis ◽  
Performance Test ◽  
Performance Testing ◽  
Torque Converter ◽  
Test System ◽  
Performance Parameters ◽  
Development Platform ◽  
Design And Implementation ◽  
Hydraulic Torque Converter ◽  
Computing Speed

Hydraulic torque converter’s performance testing is very important in the product’s development and production. In order to accurately and rapidly test various performance parameters of the hydraulic torque converter, a torque converter performance test system was developed based on the PC and VB development platform in this paper. It can improve computing speed and programming capability, decrease artificial involved times, realize the data analysis processing’s automation.

The Study of Automobile Brake Chamber Performance Test System

2014 ◽  
Vol 543-547 ◽  
pp. 1286-1290 ◽  
Author(s):  
Yi Lu ◽  
Qiang Zhu ◽  
Bin Guo
Keyword(s):  
Simulation Model ◽  
Dynamic Simulation ◽  
Performance Test ◽  
Computer Control ◽  
Simulation Models ◽  
Test System ◽  
Static Characteristic ◽  
Control Technology ◽  
Sealing Performance ◽  
Dynamic Simulation Model

To solve the problem of measuring the brake chamber at present, this integrative performance test system for bake chamber was built up by using the computer control technology. It can measure these parameters: dynamic characteristic, static characteristic, sealing performance and return performance. To verify the system accuracy, a multi-parameter dynamic simulation model for the brake chamber was designed based on AMESim. It breaks through the limit which was formerly difficult to analyze the defects of the theoretical parameters for brake chamber. By the simulation models and test system, the influence of the key component parameters to the output characteristic is analyzed .The experiment results show that the integrative performance of brake chamber can be judged very well and the simulation model is accurate and reliable.

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