[해결책] 제어Engineering 6판(Feedback control of dynamic system 6th edition,…
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S c r e e n s
(그림은 게시판에 호환되지 않습니다.
c h e s t
the process
w a t e r
(b) Drebbel’s incubator
104CHAPTER 1. AN OVERVIEW AND BRIEF HISTORY OF FEEDBACK CONTROL
M o i s t u r e
from under the wire as controlled by a control valve (CV). A meter supplies
(a) The manual steering system of an automobile
ture. Modern computer-based thermostats are programmable, sense the
the sensor
(c) Water level regulator:
m e t e r
In each case, indicate the location of the elements listed below and
M a c h i n e
R e f i n e r
listed in Problem 1 for
102CHAPTER 1. AN OVERVIEW AND BRIEF HISTORY OF FEEDBACK CONTROL
S t o r a g e
W i r e
1장부터 10장까지로 구성되어 있습니다.
C o n s i s t e n c y
give the units associated with each signal.
moisture sensor. Draw a signal graph and identify the seven components
current from the thermistor and convert that to a digital signal.
The reference signal
so that temperature changes bend the metal. In some cases, the bending
Solution:
the process output signal
1장의 연습문제 풀이를 발췌했습니다. 양해바랍니다.
Chapter 1
rectly. In most cases today, temperature is sensed electronically using,for
101
[솔루션] 제어공학 6판(Feedback control of dynamic system 6th edition, Gene F. Franklin, J. David Powell, Abbas Emami-Naeini) 솔루션 입니다..^^)
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s t o c k
W h i t e
the actuator
Notice that in a number of cases the same physical device may per-
2. Identify the physical principles and describe the operation of the thermo-
Figure 1.1: A paper making machine From Karl Astrom, (1970, page 192)
H e a d b o x D r y i n g
systems.
History of Feedback Control
(d) Watt’s steam engine with ‡y-ball governor
dryers. Stock from the machine chest is diluted by white water returning
form more than one of these functions.
(c) The water level controlled by a ‡oat and valve
Control, 공학, 제어, 자동, 솔루션
T h i c k
deviation from the desired value, determines whether the temperature
a reading of the consistency. At the “dry end”of the machine, there is a
1.1 Problems and Solutions
wire, and the moisture content of the …nal product that comes out of the
순서
m e t e r
or air conditioner so that the termperature in the room is brought back
strips of metal bonded together, each of a di¤erent expansion coe¢ cient
P r e s s e s R e e l
(a) A manual steering system for an automobile:
stat in your home or o¢ ce.
Solution:
setting is exceeded or not, and transmits the information to a furnace
(d) Fly-ball governor:
(e) Automatic steering of a ship:
of bimetallic strips simply cause electrical contacts to open or close di-
the actuator output signal
C o n t r o l l e r
설명
by the consistency of the thick stock that ‡ows from the headbox onto the
1. Draw a component block diagram for each of the following feedback control
[해결책] 제어Engineering 6판(Feedback control of dynamic system 6th edition, Gene F. Franklin, J. David Powell, Abbas Emami-Naeini) 해결책 입니다. 1장부터 10장까지로 구성되어 있습니다.
A thermostat is a device for maintaining a temperature constant at a
c h e s t
desired value. It is equipped with a temperature sensor which detects
레포트 > 공학,기술계열
are attached to a bimetallic strip which tilt the tube and cause the mer-
(a) Control of paper machine consistency:
Solution:
[해결책] 제어Engineering 6판(Feedback control of dynamic system 6th edition, Gene F. Franklin, J. David Powell, Abb
a n d c l e a n e r s
to the desired setting. Examples: Tubes …lled with liquid mercury
An Overview and Brief
(f) A public address system:
(b) Drebbel’s incubator:
s e c t i o n
cury to slide over electrical contacts. A bimetallic strip consists of two
example, a thermistor, a resistor whose resistance changes with tempera-
(b) control of moisture
Download : [솔루션] 제어공학 6판(Feedba.pdf( 23 )
main parameters under feedback control: the density of …bers as controlled
C V
1.1. PROBLEMS AND SOLUTIONS 103
reprinted with permission.
(a) control of consistency
3. A machine for making paper is diagrammed in Fig. 1.12. There are two
다.
