[解法(해법)] 제어工學 6판(Feedback control of dynamic system 6th edition, Gene F. Franklin, J. David Powell, Abb > seminar5

[解法(해법)] 제어工學 6판(Feedback control of dynamic system 6th edition, Gene …

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작성일 21-05-02 01:44

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the process output signal
A thermostat is a device for maintaining a temperature constant at a
a n d c l e a n e r s

Solution:
104CHAPTER 1. AN OVERVIEW AND BRIEF HISTORY OF FEEDBACK CONTROL
Solution:
S c r e e n s

main parameters under feedback control: the density of …bers as controlled
History of Feedback Control
reprinted with permission.
M o i s t u r e
(a) The manual steering system of an automobile
Figure 1.1: A paper making machine From Karl Astrom, (1970, page 192)
c h e s t
rectly. In most cases today, temperature is sensed electronically using,for
101
to the desired setting. Examples: Tubes …lled with liquid mercury
3. A machine for making paper is diagrammed in Fig. 1.12. There are two
Solution:
(c) Water level regulator:
stat in your home or o¢ ce.
1. Draw a component block diagram for each of the following feedback control
the actuator
2. Identify the physical principles and describe the operation of the thermo-
form more than one of these functions.
C o n s i s t e n c y

1.1 Problems and Solutions

The reference signal
(그림은 게시판에 호환되지 않습니다..^^)
s e c t i o n
cury to slide over electrical contacts. A bimetallic strip consists of two

M a c h i n e

(d) Watt’s steam engine with ‡y-ball governor
설명
w a t e r
C V
a reading of the consistency. At the “dry end”of the machine, there is a
P r e s s e s R e e l
the sensor
T h i c k
current from the thermistor and convert that to a digital signal.
so that temperature changes bend the metal. In some cases, the bending
example, a thermistor, a resistor whose resistance changes with tempera-

(d) Fly-ball governor:
S t o r a g e
Chapter 1
[解法(해법)] 제어工學 6판(Feedback control of dynamic system 6th edition, Gene F. Franklin, J. David Powell, Abb
(f) A public address system:
1장의 연습문제 풀이를 발췌했습니다. 1장부터 10장까지로 구성되어 있습니다.
desired value. It is equipped with a temperature sensor which detects

(a) control of consistency
다.
are attached to a bimetallic strip which tilt the tube and cause the mer-
systems.

Download : [솔루션] 제어공학 6판(Feedba.pdf( 71 )

(b) Drebbel’s incubator:

In each case, indicate the location of the elements listed below and
(a) A manual steering system for an automobile:
[솔루션] 제어공학 6판(Feedback control of dynamic system 6th edition, Gene F. Franklin, J. David Powell, Abbas Emami-Naeini) 솔루션 입니다.

1.1. PROBLEMS AND SOLUTIONS 103

An Overview and Brief
listed in Problem 1 for

(c) The water level controlled by a ‡oat and valve

W h i t e
from under the wire as controlled by a control valve (CV). A meter supplies
순서
strips of metal bonded together, each of a di¤erent expansion coe¢ cient
Control, 공학, 제어, 자동, 솔루션

(a) Control of paper machine consistency:
H e a d b o x D r y i n g

102CHAPTER 1. AN OVERVIEW AND BRIEF HISTORY OF FEEDBACK CONTROL
m e t e r
the process
ture. Modern computer-based thermostats are programmable, sense the
R e f i n e r
give the units associated with each signal.
of bimetallic strips simply cause electrical contacts to open or close di-
(b) control of moisture
m e t e r
(e) Automatic steering of a ship:
deviation from the desired value, determines whether the temperature
레포트 > 공학,기술계열
by the consistency of the thick stock that ‡ows from the headbox onto the
[解法(해법)] 제어工學 6판(Feedback control of dynamic system 6th edition, Gene F. Franklin, J. David Powell, Abbas Emami-Naeini) 解法(해법) 입니다. 양해바랍니다.
or air conditioner so that the termperature in the room is brought back
W i r e

(b) Drebbel’s incubator
moisture sensor. Draw a signal graph and identify the seven components

Notice that in a number of cases the same physical device may per-

dryers. Stock from the machine chest is diluted by white water returning
the actuator output signal
c h e s t
s t o c k
wire, and the moisture content of the …nal product that comes out of the
setting is exceeded or not, and transmits the information to a furnace
C o n t r o l l e r
1장부터 10장까지로 구성되어 있습니다.

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[解法(해법)] 제어工學 6판(Feedback control of dynamic system 6th edition, Gene F. Franklin, J. David Powell, Abb > seminar5

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