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SUbjec! Code: E TME - 307

Subject: MEASUREMENT AND CONTROL Total Teaching Weeks in Semester: 14 WEE KS .. Credits: 04

Total Lecture Classes Available: 42

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, i: Open & Closed Loop control transfer function of recdb~ck &

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BE COVERED 1"" . SfuvI!N/IL

r-QN'!ROL PART: : Fundamentals

I. NOll -feedbAck system.

12. T"n,fer function of ACID",o,. & Block Diagram, (!J) l'

3. t\.'ia them:ttical Modeling ' &, Annlog\)ll ~ Sp; tem & Sigll nl Flow \' 2 I Graph (N) ,

r 4. Trnmient rcspome of First & lInd o tocr sptcm to l: t1 it Step I 1 Input (Nl I

I~ ''',;.(5. Transiclt response of First & lInd order system to Unit ramp I lIt·

i Input (N) . .__. ' -+1-----,,---1 116. Trar.:si t,,!t resp onse 0; First & Hnd order system to Unit

I harmo~la-=-i~ut (N) , - .-- .----+.. -'-. -~----,-----,'----1 ~~

( .,._~~£!:~L)rt;ona l:J.!.1~J~.~~~~ ..!.?~'~:~\·:1~_:'(' Cc >11 ~!'n l ;lCI j\ )1) , .1 ;I~;i

1 rv!\t.!:'~ ' REMl.~.t{J'J'AHT: ­ I t.

K. lJIock \,1ingram of MCllsuring, Instruments & Its conmotlctHs­ I· }

I.]ignltl co,nditi00ing unit. Jt'ldic!'..ti~g.~!t]it nnd_~c:.!!~!~ g,,~.111 it , ~ t.(~, ~,..'I ().St:1tic characlcristicl> of I11t~awring~~s!l·\.I !l]::ll~.p_ .._____ . __. I;' .:~

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___ .. - Dclcrmi ll;l tiD", SnurCt',,_ _ of_ e rro r, ca_____li"ra t_ ic !ll-(N \I!~ I':rro__ rl' _____ _ . __~ .. __ - j .~.

11 . Tra t1Sdllcc r!',' hnd the ir da:;si i' IC a!l<lIl----_._---------'_.__._ ... ...,- ._..- -- - ._ - -".- - _.,_ ... --- -~ --I1 If· Rcsi~ tance Pott ltiometcr & S tf~ugc:; . 1 -----------;-.---- - --------t 13. Inductive and CapacItive transducers.

. ~1 .:,yh () I (l '-'k,c trjc& SI r<> b,()SCOPiC l, r;1I 1Sd ll Cef's, : --- - ----.- ~-! -- ---- .1 Cl?:. ~)k~)CkCITiC ~~g£~" ~.J~I(~y C:'t'E('fll l?r;lg <; l1p • _ _ I .

i (I. ,\C / DC l l:chot>('IH'rarors. I I ' P"'''---5 ____.__ u, _ _ ___ _. ,,"--- .-- ~l~MlhlL - .._-..- . -. -'''- ''' '­

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CONTROL PART; -

I i7. Concept of stability ~-c Routh's S,tabili ty Criteri;: ~,l\:~=± , 1 L" 1 18. Applica tions ofRou{h'~ Stability Criteria ~__ ._ _ . -:------1_ ___ 1

~ 19. N yyuist Stability Criteria (N) , __.,:", ___, ___ " , _., 1__ - ---11

I " , r Continued... ,

Ii' ~ , , ~(' b -.,!f =-- ---..J

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I20. Concept of Polar Plots, Couel~tion bcrween tim & fr res Ol1se (N).

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i:H criteria gilin margin & phase 2

I I 21; VanQul< types f strain gatlgc~.

24. '! temperature .compensation and circuitt)'o 1 1 I- I-­ .' 1

I 25. Measurement o f. torsion sing stt:ain gauge.

Pl~.J:;SSURE MEASUREMENT; ­

I26. Ba;c tenns related to pressure .and classification of pressuz:e

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~'Ie~suring deivce. .I27. Transducers used in p ressure eSS'".:1"~-U.L. 1

LI 23. Mcal!urelTle~t of High PressUre. 1

29: M('~sun~men dfLow Pre~sure lind Vacctn'n.

-MEASUREMENT OF FLOW: ­

30. rv[{'asurement o f flow using electromagnetic flow meter. . .. 1

31. Hot \XIjre Anemometer. 1

\32. Ul r;l ~onic FlowMeter. 1 1

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/Subject Code: ETME - 307

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-., Write YOllr roll no. on the paper immedia tely.

Roll No. ----------------­

Second term examination.

B.Tech (MAE-Vth Semester) ETME 307 M~iSUl'ement and control. Time 90 mins. Max. Marks 30 Q!lestion-n{).-1- is co mpulsory . Attempt any two'questions from the remain ing.

QI ( i) . Enumerate the transducers used for measuring pressure .(ii) . Brieny explain the princ iple of an electromagnetic flow meter. (iii) Write the necessary and sufficient conditions for the stability ofa system

accord ing to Rouths criteria. ., (Iv) What is a rosette? Enumerate the various types ofrf settes .

(v) BrieOy explain the Nyquist criter ia . (2x5)

Q2 For G(s)H(s) = 12/(5(s+ I)(s+2)], draw the Nyquist plot and determ ine the Stabil ity. Al so ca lcu late the gain marg in. 10

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Q3 ( i) £)_p :ain lhe prmciple and wQrki~g r; f. ~ :\'!d.",,~c;l gauge 'v''; it; I the heir of diagrams. A McLeod gauge has volume of bulb and meas'Jringcap illary equal to 0.00011 Ill) and the measLiri ng capillary diameter of 1.1 mm.

(a) Calculate the pressu re indicated when tle reading of the measuri ng capillary is 28mm and approximate formula is used.

(b) What is the error if the exact formula is ll :;ed for pressu re measurement? 5+5

Q~ The fo !lowing data is for a strain gauge load cell with fou r identical strain gauges . , arra nged in a ful l Wheatstone bridge.:)

Dia. Of steel cylinder = 60 mm, Nominal resislance of each gauge = 120 ohm, Gauge Factor =2.0, Supply vo ltage =6 \I , Modulus of elastic ity for stee l =: 200 GP a, Poisson's ratio = 0.3. Calculate the sensitivity oflhe load ce ll.

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