High precision pneumatic control based on C8051F040 in modal testing suspension system

HONG Xiaoqi, DAI Shangkun, WANG Shijie
(The MOE Key Laboratory of Mechanical Manufacture and Automation,
Zhejiang University of Technology, Hangzhou 310014, China)

Abstract: In order to solve the problems that it is required to carry out an accurate analysis of parameters in the process of the spacecraft design,the pneumatic technology was applied to design of modal testing suspention device.Aiming at the problems involved in the performance of pneumatic subsystem which directly affects the stability and ultralow frequency index of modal device,in order to improve the quality of the pneumatic control,pneumatic supply system was described, based on C8051F040 microprocessor as the key part in high precision pneumatic control,the hardware interface circuits and software design were designed and testified of the system. Experimental results show that the pneumatic system runs controller reliably,and features easy operation, high precision, excellent realtime, etc.. It is wealth to be promoted into practical applications.
Key words: pneumatic control; C8051F040; modal device