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

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

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

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

Transfer Function for the Model Antenna Azimuth System

Building the Experimental Model

As Constructed _ +

Model Antenna Azimuth System assembled and ready for testing

Analog System Schematic Diagram Gain = RF/RG

T I M E L N

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 $4353.86

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

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

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

Questions?

Backup

Block Diagram Reduction

Unknowns Mechanical System

The Mechanical System Problem

The Electrical System Problem