1. Teaching Control System Theory and Design Through Experimentation
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 N

11. Parts and Labor Initial Budgetary Allocation Part Costs Labor Costs
$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 $

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