ELECTRO MAGNETIC TECHNIQUES 1.ppt

7/27/2019 ELECTRO MAGNETIC TECHNIQUES 1.ppt

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K.HARI NARAYANA

[email protected]

K.SIVA NAGESWARA RAO

[email protected]

K.!AY "HASKAR

coo#$%ay_ka%a#[email protected]

DEPT.OF ELECTRONICS & INSTREMENTATION ENGG.

V.R.SIDDHARTHA ENGINEERING COLLEGE

Kanuru

VIJAYAWADA 520007

E&E'(RO )AGNE(I' (E'HNI*ES +ORE&E'(RO )AGNE(I' (E'HNI*ES +OR

I)AGING (HE 'ROSS SE'(IONI)AGING (HE 'ROSS SE'(ION

!IS(RI"(ION O+ )O&(EN S(EE& +&OW!IS(RI"(ION O+ )O&(EN S(EE& +&OWIN 'ON(INOS 'AS(ING NO,,&EIN 'ON(INOS 'AS(ING NO,,&E
mailto:[email protected]:[email protected]:[email protected]:[email protected]:[email protected]:[email protected]:[email protected]:[email protected]:[email protected]:[email protected]:[email protected]:[email protected]:[email protected]:[email protected]


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IN(RO!'(ION

-In th contin$o$s castin/ o0 st# contro# o0 mo#tn st# %#i2ry

thro$/h th 3o$rin/ no44# that is a s$5mr/% ntry no44#

SEN7 8 0#o9 sho$#% 5 #aminar 8 sta5# mnisc$s

(h 3aramtrs to 5 consi%r% 0or achi2in/ sta5# an% #aminar

0#o9 ar

-st# mass 0#o9 rat-t$n%ish mta# #2#

-3o$rin/ no44# %iamtr

-ar/on /as0#o9 rat-th amo$nt o0 c#o//in/ 9ithin th sto33r:s#i% /at-3o$rin/ no44#.

o3rationa# tm3rat$r 2aris 5t9n 1;;;


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E#ctroma/ntic in%$ctanc

tomo/ra3hy-E)( a#so trm% m$t$a# in%$ctanc tomo/ra3hy )I(7 ma3sE)( a#so trm% m$t$a# in%$ctanc tomo/ra3hy )I(7 ma3s

s3atia# %istri5$tion o0 #ctrica# con%$cti2ity or ma/ntics3atia# %istri5$tion o0 #ctrica# con%$cti2ity or ma/ntic

3rma5i#ity thro$/h th mas$rmnt o0 ma/ntic co$3#in/3rma5i#ity thro$/h th mas$rmnt o0 ma/ntic co$3#in/

5t9n in%$cti2 snsors.5t9n in%$cti2 snsors.

-E#ctrica##y con%$cti2 or 0rroma/ntic o5>cts insi% ths3ac 3ro%$c %%y c$rrnts

-+or E)( th 0or9ar% 3ro5#m is to 3r%ict th snsor o$t3$ts

0or a /i2n matria# %istri5$tion 9ith kno9n #ctroma/ntic 3ro3rtis.

Ana#ytica# a33roachs ar s$ita5# 0or so#2in/ 0or9ar% 3ro5#m

s$ch as 0init?#mnt mtho%s +E)7


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-It is /nra##y ncssary to $s non#inar rconstr$ction

mtho%s s$ch as th r/$#ari4% Ga$ss


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E)( I)AGING SYS(E)


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Snsiti2ity )a3s

-(h snsiti2ity ma3s 9hich ar %3n%nt on th matria# %istri5$tion

in th snsor array sho9 s3atia# snsiti2ity o0 a 3artic$#ar citation?

%tction coi# com5ination to 3i# 3rt$r5ations 9ithin th o5>ct s3ac.

-In th 3rimnta# mas$rmnts a co33r ro% )S:m7 o0 1D.=?mm

%iamtr 9as $s% to r3rsnt th 3i# 3rt$r5ation-(h ro% 9as 3#ac% an% mo2% $3on a 1;?mm /ri% insi% th no44#

mo%#. A sC$ar ara o0 F 3i#s a matri 9as thr0or rC$ir%

to %scri5 th no44#s ;?mm %iamtr circ$#ar s3acB this rC$ir% J

in%i2i%$a# ro% 3ositions

-(o minimi4 th $n9ant% intr0rnc 00cts nin scans 9r takn

$3on th %tction coi# 2o#ta/ 0or ach 3rt$r5ation 0or a2ra/in/

3$r3oss


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-It sho9s th sim$#at% snsiti2ity ma3s as th am3#s 5t9nni/h5orin/ coi# 3air coi# 1


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Ima/ Rconstr$ction

(h SIR( rconstr$ction a#/orithm in2o#2s an itrati2 3rocss toso#2 th C$ation 0or K 9hn S an% , ar kno9n. (h itrati2

a#/orithm at st3 i is %scri5% 5y

K LiM17k Li7M#m%a,?S.KLi77."

9hr " r3rsnts th 5ack9ar% 3ro>ction matri an% is th

r#aation 0actor that contro#s th con2r/nc s3% o0 th

a#/orithm.


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HO( &AN( (RIA& RES&(S

-(h snsor array 9as 3#ac% aro$n% a trans3arnt C$art4 /#ass

t$5 9hich 9as 3osition% o00 cntr to3 ri/ht7 9ithin a stan%ar%

s#a5 castr SEN an% connct% to th E)( instr$mnt thro$/h#on/ thrma##y shi#%% ca5#s 9hich s$00r% no %/ra%ation o0

si/na# o2r th rC$ir% m.

-)o#tn st# 9as s$33#i% 0rom a ?ton nomina# ca3acity #ctricarc 0$rnac 2ia a sto33r% #a%# to a t$n%ish an% thn 3ass% to

a 3s$%o?castin/ mo#% 2ia th /#ass t$5 to na5# s$5mr/%

3o$rin/ to 5 sim$#at%

(9o scans 9r takn 0or a2ra/in/ 3$r3oss 9hich rs$#t% in a

sam3#in/ rat o0 D.; s:0ram. 'astin/ 9as maintain% 0or

a33roimat#y DD; s.


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-sho9s th snsor o$t3$ts thro$/ho$t

castin/ 0or th cass o0 a ni/h5orin/

coi#?3air coi# 1


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CONCLUSION

-(h 3a3r has 3rsnt% an E)( systm 9hich is com3os% o0

an i/ht?coi# snsor array a %ata acC$isition $nit th associat%

con%itionin/ circ$itry an% a '?5as% com3$tr

-(h 3rsnt systm $ss a sim3# rconstr$ction a#/orithm 0or

ima/ rconstr$ction an% has a #o9 %ata acC$isition rat 1.J= s3r 0ram7.

-th E)( a33#ication ho#%s si/ni0icant 3romis 0or th 0$t$r

in%$stria# 3rocss.


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ELECTRO MAGNETIC TECHNIQUES 1.ppt