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#&

ISO 9001:2008 Page 1 JEPPIAAR ENGINEERING OLLEGE

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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.

ISO 9001:2008 Page ! JEPPIAAR ENGINEERING OLLEGE

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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.$"=

ISO 9001:2008 Page # JEPPIAAR ENGINEERING OLLEGE

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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.

ISO 9001:2008 Page 1" JEPPIAAR ENGINEERING OLLEGE

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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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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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!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*

ISO 9001:2008 Page 2# JEPPIAAR ENGINEERING OLLEGE

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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

ISO 9001:2008 Page !0 JEPPIAAR ENGINEERING OLLEGE

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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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esultH

Tus te orifice plate +as esigne for te gi,enspecifications.


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#. 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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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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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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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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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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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.

ISO 9001:2008 Page 4! JEPPIAAR ENGINEERING OLLEGE

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esultH

!hus the +ID controller (as designed.

+0. 'I'IN% #ND INS!"MEN#ION DI#%!#M )#SE

S"D$


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#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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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

Documents

Ei-2406 Isd Lab Manual (2013)