| Nowadays, the hydraulic driver is more and more widely used because of its merits including small volume, light weight, steady operation and a wide range of speed variation. But it is difficult to assure the high accuracy in the system due to various factors, for example, parts'accuracy and performance, system's assemble accuracy, Nonlinear and time-change, etc. At the same time, it is also very difficult to test the system and check the fault due to the system's characteristics, for example, complexity and integration. The traditional testing methods, characterized by low accuracy and low degree of automation, are not perfect enough.In order to resolve the problem above, the thesis proposes a modern double-cylinder-oriented control strategy by adopting Fuzzy-PID technology, makes a detailed introduction to the method's application process, and proves its advantage by means of the LabVIEW's Simulation module.Besides, the thesis discusses how to carry out data testing, data acquisition, data analysis, data saving, etc, by the virtual instrument based on the LabVIEW. Meanwhile, the subvi, used for parts'testing, is generated by the LabVIEW, which can offer foundation and testing modules for the future large-scale testing systems.
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