Yaqiong ZHANG, Yang XU, Wei ZHOU, Jiandu GUO, Yi LIU, Jiwen TIAN. Design and implementation of continuous zoom control system based on fractional order PID controlleroller[J]. Journal of Applied Optics, 2023, 44(6): 1306
- Journal of Applied Optics
- Vol. 44, Issue 6, 1306 (2023)
Fig. 1. Structure of continuous zoom system
Fig. 2. Schematic diagram of continuous zoom system
Fig. 3. Position/field figure of continuous zoom system
Fig. 4. IMC control system structure
Fig. 5. IMC equivalent feedback control structure
Fig. 6. Schematic of continuous zoom control system
Fig. 7. Block diagram of zoom (compensation) servo control system
Fig. 8. Mathematical model of servo control system
Fig. 9. Flow chart of controller design
Fig. 10. Comparison diagram of system step response
Fig. 11. Bode diagram of open-loop system
Fig. 12. Response curve of load disturbance
Fig. 13. Unit step response of parameter perturbation system
Fig. 14. Simulink model of continuous zoom control system
Fig. 15. Position response of zoom control system
Fig. 16. Position response of compensate control system
Fig. 17. Hardware experiment platform
Fig. 18. Image in zoom process light tube
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Table 1. Parameters of continuous zoom control
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Table 2. Dynamic performance parameters of control system
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Table 3. System robustness evaluation indices
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