Download Makalah Signal Conditioning PDF

TitleMakalah Signal Conditioning
Tags Cable Inductance Electronic Circuits Operational Amplifier
File Size3.1 MB
Total Pages64
Document Text Contents
Page 2

OverviewOverview

AAmmp p V V tto o I I I I tto o VV AmpAmp

4-20 mA4-20 mA

Motor/Power Motor/Power  ArcingArcing LightingLighting

Noise SourceNoise Source

InterferenceInterference

FieldField Control RoomControl Room

Page 32

I To V Converters: Floating Load

ref  span

i

 f 

out 
V  IR

 R

 R
V  += m = R f  R L/ Ri  , b = V ref 

+

-

 R
 f  

 R
4

+

-

 R
i

 R
i

 R
 span

 R
 f  

 R
 pot 

+V 

-V 


out 

+

-

4-20 mA


ref  

To prevent the loading effect be sure that  Rspan << Ri 
or Instrumentation amplifier can be used in stead

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