[정답] 제어Engineering 6판(Feedback control of dynamic system 6th edition, Gene F. Franklin, J. David Powell, Abb > tropical4

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the sensor
a n d c l e a n e r s
1.1 Problems and Solutions
w a t e r
A thermostat is a device for maintaining a temperature constant at a

2. Identify the physical principles and describe the operation of the thermo-
(e) Automatic steering of a ship:
(그림은 게시판에 호환되지 않습니다.
setting is exceeded or not, and transmits the information to a furnace
the process
by the consistency of the thick stock that ‡ows from the headbox onto the
are attached to a bimetallic strip which tilt the tube and cause the mer-

An Overview and Brief
S c r e e n s
(a) control of consistency
T h i c k
Solution:
or air conditioner so that the termperature in the room is brought back
(c) Water level regulator:
C o n s i s t e n c y
moisture sensor. Draw a signal graph and identify the seven components

(b) Drebbel’s incubator:
Notice that in a number of cases the same physical device may per-

102CHAPTER 1. AN OVERVIEW AND BRIEF HISTORY OF FEEDBACK CONTROL

dryers. Stock from the machine chest is diluted by white water returning
C V
History of Feedback Control

Download : [솔루션] 제어공학 6판(Feedba.pdf( 99 )

다.
순서
of bimetallic strips simply cause electrical contacts to open or close di-

the process output signal
form more than one of these functions.
M a c h i n e
3. A machine for making paper is diagrammed in Fig. 1.12. There are two
W i r e
[솔루션] 제어공학 6판(Feedback control of dynamic system 6th edition, Gene F. Franklin, J. David Powell, Abbas Emami-Naeini) 솔루션 입니다. 1장부터 10장까지로 구성되어 있습니다. 양해바랍니다. deviation from the desired value, determines whether the temperature

ture. Modern computer-based thermostats are programmable, sense the

S t o r a g e
1. Draw a component block diagram for each of the following feedback control

c h e s t
to the desired setting. Examples: Tubes …lled with liquid mercury
P r e s s e s R e e l

(a) A manual steering system for an automobile:
설명
(c) The water level controlled by a ‡oat and valve
m e t e r
Figure 1.1: A paper making machine From Karl Astrom, (1970, page 192)

s e c t i o n

desired value. It is equipped with a temperature sensor which detects

Chapter 1
Solution:
rectly. In most cases today, temperature is sensed electronically using,for
m e t e r
cury to slide over electrical contacts. A bimetallic strip consists of two
c h e s t

(d) Fly-ball governor:

the actuator
1장의 연습문제 풀이를 발췌했습니다..^^)

strips of metal bonded together, each of a di¤erent expansion coe¢ cient
example, a thermistor, a resistor whose resistance changes with tempera-

Solution:
[정답] 제어Engineering 6판(Feedback control of dynamic system 6th edition, Gene F. Franklin, J. David Powell, Abb
Control, 공학, 제어, 자동, 솔루션
reprinted with permission.
wire, and the moisture content of the …nal product that comes out of the
main parameters under feedback control: the density of …bers as controlled
give the units associated with each signal.
H e a d b o x D r y i n g
current from the thermistor and convert that to a digital signal.
The reference signal
M o i s t u r e
(f) A public address system:
stat in your home or o¢ ce.
(b) control of moisture
(d) Watt’s steam engine with ‡y-ball governor
In each case, indicate the location of the elements listed below and
W h i t e
101
s t o c k
(a) The manual steering system of an automobile
a reading of the consistency. At the “dry end”of the machine, there is a
from under the wire as controlled by a control valve (CV). A meter supplies

listed in Problem 1 for

(b) Drebbel’s incubator
1장부터 10장까지로 구성되어 있습니다.
104CHAPTER 1. AN OVERVIEW AND BRIEF HISTORY OF FEEDBACK CONTROL
the actuator output signal

C o n t r o l l e r
systems.
so that temperature changes bend the metal. In some cases, the bending
레포트 > 공학,기술계열
(a) Control of paper machine consistency:
R e f i n e r
1.1. PROBLEMS AND SOLUTIONS 103
[정답] 제어Engineering 6판(Feedback control of dynamic system 6th edition, Gene F. Franklin, J. David Powell, Abbas Emami-Naeini) 정답 입니다.

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