Ei-2406 Isd Lab Manual (2013)
description
Transcript of Ei-2406 Isd Lab Manual (2013)
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DEPARTMENT OF EIE EI2406 - INSTRUMENTATION SYSTEM DESIGN LAB
INDEX
SL.NO Date Name of the Experiments Marks Staff Signature
EI2406 INS!"MEN#ION S$SEM DESI%N L#&
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List of Experiments
1. Design and Implementation of instrumentation amplifier.
2. Design and implementation of active filter.
3. Design and implementation of V/I and I/V converters.
4. Design and implementation of cold junction compensation circuit for
thermocouple.
5. Design and implementation of signal conditioning circuits for !D.
". Design of orifice plate
#. Design of rotameter.
$. Design of control valve %&i'ing and flo( lift characteristics).
*. Design of +ID controller%,sing operational amplifier and microprocessor)
1-.+iping and Instrumentation Diagram ase stud.
11.+reparation of documentation of instrumentation project%+rocess flo( sheet0
instrumentation inde sheet and instrument specifications sheet)
'in Diagram(
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)ir*uit Diagram(
+. INS!"MEN#ION #M'LI,IE!
#im(
!o design an instrumentation amplifier.
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#pparatus re-uire(
&. I!6 &+I7I8!I 9,8!I!:
1
23
4
5
"
I
esistorsegulated po(er suppl
Voltmeter
;read 0 1=>%- 15)V
D voltmeter
??
3
20 42
1
1
'ro*eure(
1. 7ind @ to get reAuired output voltage.
2. Bive the connections as per circuit diagram.
3. Var the input voltage.
4.
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heor(
In industrial and consumer applications0 the phsical Auantities such as temperature0+ressure0 Fumidit0 ight intensit0 Gater flo( etc are measured (ith the help of
transducers. !he output of transducer has to
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a1u/ar *o/umn(
&. g V1 V2 VdC %V1V2) V-%!heoretical)
V-%practical)
1
2
3
4
5
!esu/t(
!hus the instrumentation amplifier (as designed and for various changes in resistanceof g the output (as o
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2. DESI%N O, #)IE ,ILE!S
#im(
!o stud and design an active filter using operational amplifiercircuit.
#pparatus !e-uire(
1. esistor 1-=0 1.5*=0 5.$"=
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2. apacitor -.17
3. +&
4. I #41
5. 7unction Benerator.
'ro*eure(
1. onnect the circuit diagram for o( pass and Figh pass filter as sho(n.
2. o( input signal %sine (ave) at particular freAuenc is applied.
3. !he different freAuencies is applied to the circuit is noted and corresponding
output voltage is noted.
4. Braph is dra(n for freAuenc Vs utput voltage.
)ir*uit Diagram(
2. Figh +ass 7ilterH
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heor(
o( pass 7ilterH
V- C
6agnitude of esponse0
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ecalling that magnitude of a comple num
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!a
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Circuit Diagram:
3 a. DESI%N O, )"!!EN O OL#%E )ONE!E!S
#im( !o design a current to voltage converter.
#pparatus re-uire(
1. perational 8mplifier I #41
2. esistor 1=0 1-= and 1--=.
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3. +&
4. !rim +ot 2-=
5. +ot 1=
". ;read ;oard
#. onnecting (ires.
'ro*eure(
1. Bive the connections as per the circuit diagram.
2. Var the input current %4 2-) m8.
3.
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Vo is limited as function of Vin0 &ince input terminal is virtual ground0 current flo(sthrough feed
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4
5
"
#
$
*
!esu/t(
!hus the current to Voltage converter (as designed for the given
specifications.
DESI%N(
Voltage
urrent8ssume ViC 5V0 iC 25-N.
iC C C 2- m8.
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%1 5)V%4 2-) m8.
)ir*uit Diagram(
3
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3. +&
4. !rim +ot 2-=
5. !ransistor &1--
". ;read ;oard
#. onnecting (ires.
'ro*eure(
1. Bive the connections as per the circuit diagram.
2. Var the input voltage%- 5)V
3.
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5 2
" 2.5
# 3
$ 3.5
* 4
1- 4.5
11 5
!esu/t(
!hus the Voltage to urrent converter (as designed for the givenspecifications.
4. DESI%N #ND IM'LEMEN#ION O, )OLD 5"N)ION)OM'ENS#ION )I!)"I ,O! 3E!MO)O"'LE
#im(
!o design a cold junction compensation circuit for thermocouple.
#pparatus re-uire(
8D5*-0 I #41
'ro*eure(
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1. 7irst measure the thermocouple output (ith respect to room temperature
in mV and this is called as Vo.
2. Gith respect to Vodesign g0 10 2.
3. 6easure the output of 8D5*- and reset the gain value such that it meetsthe Voof the ta
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a1u/ar )o/umn(
&. !emperature in o utput Voltage%V)
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DEPARTMENT OF EIE EI2406 - INSTRUMENTATION SYSTEM DESIGN LAB
1
2
3
4
5
"
#
$
*
1-
!esu/t(
!hus the linearising circuit and cold junction compensation circuit forthermocouple is designed and studied.
Circuit Diagram:
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DESI%N(
!DH
!C o%1EOP!)
8ssume -C 1-->0 O C -.--3*/o0 ! C 1--o.
1--C 1-- %1E-.--3*1--).
C 13*>.
&rige )ir*uit(
8ssume Voltage drop across !D C 15Q1-314-.
V!DC 2.1V.
8ppl =V0
VinC 5V.
VinC V!DE V2.
5V C 2.1 E V2.
5. DESI%N #ND IM'LEMEN#ION O, SI%N#L
)ONDIIONIN% )I!)"I ,O! !D
#im(
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DEPARTMENT OF EIE EI2406 - INSTRUMENTATION SYSTEM DESIGN LAB
!o design signal conditioning circuit using !D.
#pparatus !e-uire(
1. ven and thermometer
2. !D
3. Differential amplifier
4. +&
5. esistors
". 6ultimeter
#. ;read
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2C C C 1*3>.
2C 2-->.
3C 2
!DC 1
7rom the
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heor(
old junction compensationH
&ignal conditioning circuits normall emplo amplifiers0 temperaturecompensation devices etc.
!D(
!D stands for resistance temperature detector. !D has a positive
temperature coefficient. !he principle of !D is as there is a change in the
temperature0 the resistance changes0 this change in resistance is measured. 8s!D has a positive temperature coefficient I.e as temperature increases0
resistance increases0 the resistance at an temperature t can
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Tabular column:
SL.NO
Temperature inoC
Resistance of RTDin
OutputVoltage(V)
1
!
4
"
#
$
%
&
1'
Result:
Tus te signal conitioning circuit for RTD is esigne.
6. DESI%N O, O!I,I)E 'L#E
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#im(
!o design an orifice plate using the given specifications.
Spe*ifi*ations(
7lo( rate C 9 C -.1m
3
/sec Discharge coefficient C dC -.#
Densit C U C 12--=g/m3
Difference in height C h C -.5m
C -."
Design(
et0
+1+ressure at section 1.
V1Velocit at section 1.
a1area of pipe at section 1.
+20 V20 a2are corresponding values at section 2.
g
P
1E
g
V
2
21
E W1C
g
P
2E
g
V
2
22
E W2
%gP
1E W1) % g
P
2E W2) C
gV2
22
gV2
21
%gP
1E W1) % g
P
2E W2) C h %Differential head)
h C
gV222
gV221 %or) 2gh C V22 V12
Diagram*
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V2C 22 1Vgh+
8t vena contracta0 a2represents the area of the vena.
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If a-is the area of the orifice0
cC
-
2
a
a
c C oefficient of contraction
a2C a- c.
; continuit eAuation0
a1V1C a2V2
V1C
1
2
a
aV2C
1
-
aca c
V2
&u
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dC
22
1
21
1-
1
-
C
C
Caa
aaC
C
21
22
1
1
-
1
-
a
a
CaaC Cd
9 C a-
21
22
1
1
-
1
-
aa
CaaC Cd
22
1
2
1
-cc
aa
gh
9 C 21
2
1
-
-
aa
ghaCd
9 C22
2
-1
1-
aa
ghaaCd
dC oefficient of discharge.
9 C41
2-
ghaCd
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DEPARTMENT OF EIE EI2406 - INSTRUMENTATION SYSTEM DESIGN LAB
a-C
ghC
Q
d 2
41
d CghCd
Q2
4
14
d C
5.-X$.*X2#.-X
4".-11.-X4
d C -.232m
C
Dd
D C Diameter of the pipe.
d C diameter of the orifice.
D Cd
C
".-232.- m
C -.3$#m.
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DEPARTMENT OF EIE EI2406 - INSTRUMENTATION SYSTEM DESIGN LAB
esultH
Tus te orifice plate +as esigne for te gi,enspecifications.
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DEPARTMENT OF EIE EI2406 - INSTRUMENTATION SYSTEM DESIGN LAB
#. D&IB 7 !86!
8imH
!o design a rotameter using the given specifications.
&pecificationsH
7lo( rate C 9 C 1--m3/sec
Densit of the fluid C U1C -.*=g/m3
Densit of the float C U2C 2.5=g/m3
Volume of the float C 55-mm3
!apering angle C O C 5o
DesignH
In eAuili
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DI8B86H
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DEPARTMENT OF EIE EI2406 - INSTRUMENTATION SYSTEM DESIGN LAB
827loat area
V17luid average velocit
d82U1
gV2
21
E U1V C U2V
d82U1
gV2
21
C %U2 U1)V
V12C
12
12 )%2
ACvg
d
V1 C
2
1
12 )%2
AC
gv
d
A C V18a
A Cd
a
CA
1
12
2
2
Agv
8a8nnular restriction area
dC
1ontraction or flo( coefficient
8aC 4D2
et d inlet tu
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DEPARTMENT OF EIE EI2406 - INSTRUMENTATION SYSTEM DESIGN LAB
h Feight of the ;o< from the inlet end
D C d EOh
8aC
4
%d EOh)2
C4
%d2 E O2h2E 2Ohd)
C4
O %Oh2E 2hd E
2d )
A CdC4
%Oh2E 2hd E2d )
1
12
2
2
Agv
6ultipl
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DEPARTMENT OF EIE EI2406 - INSTRUMENTATION SYSTEM DESIGN LAB
1-- C
1
21-X25X5X
))%2%2
1*.-5.224X31-X55-X$.*
1 rhr
r
+
1-- C
1
21-X25X5X
)%4
1*.-
5.224X31-X55-X$.*
1 rhr
r
+
h1Feight of the
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DEPARTMENT OF EIE EI2406 - INSTRUMENTATION SYSTEM DESIGN LAB
d C -.-5m
D C d EOh
D C -.-5 E 5X251-2
D C 1.3m
esultH
Tus te Rotameter +as esigne for te gi,enspecifications.
. DESI%N O, )ON!OL #LE 7SI8IN% #ND ,LO9 LI,
)3#!#)E!ISI)S:.
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8imH
!o design control valve si'ing using the given specifications and dra(
flo(lift characteristics.
&pecificationsH
7lo( rate C A C 3".5 Bpm
+ressure across the valve C Pp C 1--psi.
&pecific gravit of the fluid C B C 1.
DesignH
VC
p
Gq
VValve coefficient.
A7lo( rate
Pp+ressure across the valve.
B&pecific gravit of the fluid.
VC 3".5 1--
1
V C 3."
!a
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3 ]\
14 1\
35 1]\
1-$ 2\
1#4 3\
!he suita
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DEPARTMENT OF EIE EI2406 - INSTRUMENTATION SYSTEM DESIGN LAB
Design(
+ C =pepE =p=I tepdt-
E =p=Ddtdep
E pi%-)
Ghere
+ ontroller output.
ep +rocess error
=p +roportional gain
=I Integral gain
=D Derivative gain
pi%-) Initial controller output.
8nalsis of the circuitH
VoutC1
2
RR
VeE1
2
RR
11
1CR t
dtVe
-E
1
2
RR
DDdtdVe
E Vout%-)
Ghere 3 can
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Biven =+C 50 =IC -.10 =DC 1.
=pC1
2
RR
5 C1
2
RR 0 8ssume 1C 1=N.
2 C 5 1=N C 5 =N.
=DC DD
8ssume DC -.17
1 C DD
8ssume DC -.17
DC F1.-1
DC 5 =N.
=IC11
1CR
-.1C11
1CR
11C 1-
8ssume 1 C 1--7
1 C 1-- =N.
2Zfma3DC -.1
3 C 15* =N.
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DEPARTMENT OF EIE EI2406 - INSTRUMENTATION SYSTEM DESIGN LAB
esultH
!hus the +ID controller (as designed.
+0. 'I'IN% #ND INS!"MEN#ION DI#%!#M )#SE
S"D$
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DEPARTMENT OF EIE EI2406 - INSTRUMENTATION SYSTEM DESIGN LAB
#im(!o dra( the +I diagram for the flo(0 pressure and temperature process.
Sm1o/s "se(
+rocess signal linesInstrument air suppl
Instrument electric po(er suppl
,n defined signal
+neumatic signal
lectric signal
Fdraulic signal
7illed thermal element capillar tu
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DEPARTMENT OF EIE EI2406 - INSTRUMENTATION SYSTEM DESIGN LAB
11. ++88!I 7 D,6!8!I 7 I&!,6!8!I
+^! %+&& 7G &F!0 I&!,6!8!I IDQ&F! 8D I&!,6! &+I7I8!I& &F!) 8& &!,D:
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ISO 9001:2008 Page 4# JEPPIAAR ENGINEERING OLLEGE