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Closing the Loop: Control System Theory and Design Through Experimental Learning

This project focuses on enhancing understanding of control system theory and design through practical experimentation. A model antenna azimuth system was constructed to demonstrate key concepts in feedback loops and system dynamics. The project emphasizes a modular design allowing for scalability, enabling future digital control integration. With a budget of $1000, the project faced challenges in cost management but provided invaluable insight into real-world control system design and the learning experience. Future enhancements will include an elevation system for improved functionality.

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Closing the Loop: Control System Theory and Design Through Experimental Learning

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  1. CLOSING THE LOOP Teaching Control System Theory and Design Through Experimentation Project Design Engineer Project Mentors Mark Kapsch Dr. Brian Hodgkin Mr. Steve Innes

  2. Preliminaries • Purpose of Project • Overview of Control System Theory • Antenna Azimuth Model Construction • Parts and Labor • Scalability

  3. Reason for Design • Experimental Model for Control Systems Design Course, ELE425 • Commonly Encountered Control System Design Problem • Experimentation and Analysis Enhances the Learning Experience 70m Deep Space Tracking Antenna GoldStone Complex, California Photo Courtesy of NASA JPL

  4. Basic Control System Theory • Control Systems Use Feedback Loops to Manipulate the Circuit Output

  5. Transfer Function for the Model Antenna Azimuth System

  6. Building the Experimental Model

  7. As Constructed _ +

  8. Model Antenna Azimuth System assembled and ready for testing

  9. Analog System Schematic Diagram Gain = RF/RG

  10. T I M E L I N E

  11. Initial Budgetary Allocation $1000 or less Part Costs Estimated $745.60 Actual $909.64 Overrun $164.04 Labor Costs 217.5 Hours X $16.00/Hour = $3480 Total $4353.86 Parts and Labor

  12. Scalability of Design • Built-in Option for Digital Control System Implementation • Ability to add Sensors or Motors above the Rotating Pedestal • Modular Design • Allows alternate components to be easily implemented

  13. Antenna System Phase 2 • Project has been selected by Gabe Garza for enhancement • Elevation system to be added • Modification scheduled for Fall 07 to Spring 08

  14. Summary • Need for Project • Control System Theory • Development and Construction • Project Cost • Future Growth

  15. Questions?

  16. Backup

  17. Block Diagram Reduction

  18. Unknowns Mechanical System

  19. The Mechanical System Problem

  20. The Electrical System Problem

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