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Design and Research about the Test and Control System of WE-10 Material Tester Based on LABVIEW

Author: ChenChao
Tutor: TangShanHua
School: Wuhan Polytechnic University
Course: Mechanical Design and Theory
Keywords: Pressure testing machine LABVIEW Electro-hydraulic proportional control Fuzzy-PID Signal acquisition
CLC: TH87
Type: Master's thesis
Year: 2009
Downloads: 170
Quote: 2
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Abstract

Universal testing machine is the main equipment of the determination of the mechanical properties, can double as tensile, compression, such as a variety of experiments, so called universal testing machine. Test the performance of a direct impact on the reliability of the product test data is detected. In China, a large number of various vintage hydraulic testing machine exists, and continue to use. These old-fashioned hydraulic testing machine, they use a the pure hydraulic control system, loaded manual valve regulator, and the pendulum dynamometer dial readings. Domestic commonly used traditional hydraulic testing machine due to a defect on its own performance, can not meet the requirements of the current national standards for materials testing. In order to ensure the strength of the results of the accuracy, reliability and comparability, China specified in the test method of mechanical properties of materials testing machine precision and constant pressure loading speed, after which our development of automated materials testing machine and The production appeared climax. China's market is now a series of automatic hydraulic testing machine system has made a great contribution to the material for the country's industry and its detection. But in practice also found some problems, such as the \automatic presses. And such products expensive, poor flexibility, it is difficult to meet the specific needs of the experiment. One of the most important point is that in the constant load accuracy has yet to be improved. How to achieve these requirements, a number of materials testing machine facing an urgent problem. This paper proposed a transformation object to the Hydraulic Laboratory traditional manual hydraulic material testing machine, hydraulic universal testing machine monitoring and control system using virtual instrumentation technology program, increase the PC, sensors, proportional relief valve components The original pure manual hydraulic test machine transformed into a machine, electricity, liquid one automatic monitoring and control system. In the computer and Internet age, the use of computer and network technology to transform traditional industries, has become a trend, the virtual instrument system is the fusion of computer and network technology with traditional instrumentation technology. After transformation, hydraulic materials testing machine with automatic data collection, processing and save data, as well as automatic alarm and historical data to reproduce, greatly improved work efficiency, accuracy and automation level of the material testing machine. This article from the composition of the system, the hardware and software implementations discussed in detail how to use the development tools LABVIEW to construct and realize this system, focus on the implementation of the system transformation process simulation and software systems, as well as the development of hydraulic experimental teaching provide a reference.

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CLC: > Industrial Technology > Machinery and Instrument Industry > Instruments, meters > Material testing machine and test equipment
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