Chapter 1-Overivew Of Feedback Control

Question 1

Xo(t)

Answer 1

Reference input

Question 2

DeltaV

Answer 2

Control signal

Question 3

X(t)

Answer 3

System variable

Question 4

How to establish relationship between reference input xo(t) and deltaV

Answer 4

Use a dynamic model

Question 5

Open-loop control

Answer 5

If the controller does not use a measure of the system output being controlled in computing the control action to take.

Question 6

Closed Loop or feedback control

Answer 6

If the controlled output signal is measured and fed back for use in the control computation.

Question 7

Process

Answer 7

Central component of the feedback system, whose output is being controlled.

Question 8

Actuator

Answer 8

A device that can influence the controlled variable of the process.

Question 9

Plant

Answer 9

The combination of process and actuator.

Question 10

Component block diagram of elementary feedback (notability)

Answer 10

Fill in as much as you can and the diagram filled out is on p. 5 of the book.

Question 11

Input Filter

Answer 11

Convert the reference signal to electrical form for later manipulation by the controller.

Question 12

Controller

Answer 12

Computes the difference between the reference signal and the sensor output to give the controller a measure of the system error.

Question 13

Block diagram representations

Answer 13

Everytime a line hits a block it is multiplied. For the summing junction, need to see whatever arrow is going into there and it equals output. Check to see if it’s plus or minus.

Question 14

Taylor Series First ORder

Answer 14

F(x)~f(xo)+df/dx(x-xo)