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Design And Research About The Test And Control System Of WE-10 Material Tester Based On LABVIEW

Posted on:2010-08-07Degree:MasterType:Thesis
Country:ChinaCandidate:C ChenFull Text:PDF
GTID:2132360278451761Subject:Mechanical design and theory
Abstract/Summary:PDF Full Text Request
The hydraulic universal material testing machine is the main material mechanics performance measurement equipment. Can also be pulling, etc. Various experiments, it is called universal testing machine. Tester will have a direct impact on the performance of products by testing the reliability of the data. In our country, all sorts of old hydraulic testing machine, and continue to be used. In these old hydraulic testing machine, mostly adopts pure hydraulic control system, using manual valve pressure load, the pendulum force measurement, the scale that reading. At present domestic widely used because of its traditional hydraulic testing machine, performance itself already cannot satisfy the current national standards for material inspection requirements. In order to ensure the accuracy and reliability of the strength and the comparability, the material mechanics performance test method stipulated in the precision and the pressure test pressure constant load rate, then our country's automatic material performance test in the development and production of appeared.Our country market now appeared in a series of automatic hydraulic testing machine for the country's industry and made a great contribution to the test. But in practice also found some problems, such as the definition of "automatic", some manufacturers in the manual machine and automatic data collection system is called "automatic press", also called by microcomputer and automatic press, etc. And such products, flexibility and expensive to meet specific experiments needed. One of the most important aspects in constant load for improving precision. How to realize these requirements of testing machine is a difficult problem.In view of the above are presented in this paper based on the traditional manual hydraulic laboratory test for hydraulic material transformation in the virtual instrument technology, realizing the hydraulic universal material testing machine control system scheme, increased PC, sensors, overflow valve components, the original manual hydraulic test of pure into machine, electricity, liquid in an automatic control system. In this era of computer and network technology, computer and Internet use of traditional industries, is an inevitable trend, and virtual instrument system is a computer and network technology and traditional instrument technology integration of product. After the reconstruction of hydraulic material testing machine, automatic data collection with automatic processing and data, and the automatic alarm and recreate historical data etc. Function. Greatly improve the working efficiency, material testing machine precision and automation level.From the system composition to the realization of hardware and software are discussed in detail from aspects of how to use the tools to structure and realizing the LABVIEW. Key research system transformation process simulation and software systems. Good for hydraulic experimental teaching development direction.
Keywords/Search Tags:Hydraulic tester, LABVIEW, Electrohydraulic proportional control, Fuzzy PID, Signal acquisition
PDF Full Text Request
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