Topics include:

• The Digital Storage Oscilloscope

• Transient and Steady State Response

• Proportional Speed Control

• Proportional Position Control

• Second Order Response Parameters

• Velocity and Transient Velocity Feedback

• Controller Characteristics

• Integral Speed Control

• Proportional Plus Integral Speed Control

• Proportional Plus Integral Plus Derivative Position Control

• Instability

• Introduction to Control Systems

• Time Response

• Frequency Response

• Principles of Feedback

• Proportional Position Control

• Behavior of Second Order Systems

• Positional Control with Velocity Feedback

• Three-Term or PID Control

• Stability

• The Use of Computers for Control

• Analog Interfacing

• Direct Digital Control

• Digital Interfacing

Typical activities include:

• Describe the Main Elements of a PID Controller

• Investigate the data capture features of a digital storage oscilloscope.

• Conduct simple step, ramp, and frequency response tests.

• Demonstrate Proportional Speed control.

• Outline the reasons for adding velocity feedback.

• Demonstrate the change in following error when transient velocity feedback replaces velocity feedback.

• Discuss the effects of noise when subjected to derivative action.

• Demonstrate various combinations of PID control.

• Demonstrate the stabilizing effect of a proportional action on a system controlled with integral action.

• Operate the software controls to drive the DC Motor and observe its behavior.

• Measure the parameters of a plant using step tests.

• Account for the excellent steady state performance of a proportional servo position system.

• Set up a servo system to respond to ramp inputs using proportional gain and transient velocity feedback.

• Show how positive feedback can occur in a negative feedback system.

• Explain Gain Margin and Phase Margin.

• Describe the advantages and disadvantages of using computers in real-time control.

• Outline the problems arising from low resolution and slow sampling.

• Describe Gray code position measurement and other absolute and relative digital position measurement techniques.

The Virtual Control Laboratory software should allow the control and monitoring of a DC motor module and command potentiometer, and it must includes the following items:

• Real time Windows based Virtual

• Control Laboratory software

• CLIO Control laboratory input/output interface module Parallel interface lead for connection between the interface module and the PC

The software must allows the user to divide the screen into four independently configurable sections:

• Control Reference signal

• Controller

• Plant

• Display

Items supplied with this Teaching Set should include:

• D.C. Motor Control Module

• Virtual Control Laboratory

• Command Potentiometer

• 4mm Connection Leads

• Power Supply

• Curriculum Manual Set

Standard Accessories: The equipment / instrument which are required to carry out the required experiment should come under standard accessories. The following accessories should be supplied along with this equipment:

• Storage case/box