Fuzzy PID Study on Electro-hydraulic Position Control System for Industrial CT

Industrial CT is a kind of detection technology widely used in nondestructive detecting of industrial products. In order to improve its imaging accuracy and scanning efficiency, the loading system position should be precisely controlled. The mathematical model has been established based on the position control system experiment platform of industrial CT experiment platform. The traditional PID and fuzzy PID control module of MATLAB/Simulink have been used for experimental design and simulation analysis. Finally, the control module has been established by using the LabVIEW platform of the host computer, so as to verify the effectiveness of the strategy. In the experiment, the relative error of fuzzy PID is maintained at 1%~6%, which proves that the designed fuzzy PID controller has a good tracking performance and can meet the practical engineering application. The proposed control strategy met the needs of industrial CT position control accuracy, which can provide references for the design of position control system for industrial CT test bench.