!
Model No. ES-9080 Basic Electrostatics System
33
- ln0.01], where V
o
is the voltage of the source. Choose a signal such that the
period of the wave is at least double this charging time.
Experimental Setup
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),0%6-%6#%)(#/%*/,,$*-$0%-/%/,$%/>%-9$%),)(/E%*9),,$(#%/>%-9$%8*6$,*$%
b/4Z#9/'%6,-$4>)*$7
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06#'()C%/>%=/(-)E$%=#7%-6+$%>/4%-9$%4$)06,E#%/>%-9$%$($*-4/+$-$47
3. 8$-%-9$%#6E,)(%E$,$4)-/4%-/%'4/02*$%)%'/#6-6=$%#F2)4$%:)=$%/>%
+)56+2+%)4/2,0%a%=/(-#%),0%/>%>4$F2$,*C%J7ag%\]7%8$-%-9$%#6E,)(%
E$,$4)-/4%-/%;"MA7%W,%-96#%:)CD%-9$%#6E,)(%:6((%-24,%/,%),0%/>>%)#%
C/2%'4$##%8-)4-%/4%8-/'%-/%*/(($*-%0)-)7
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*)')*6-/4%/,%-9$%#*4$$,7%b9$,%#$=$4)(%*C*($#%/>%*9)4E6,EH
06#*9)4E6,E%9)=$%*/+'($-$0D%#-/'%-9$%*/(($*-6/,%/>%0)-)7
5. A,(C%/,$%>2((%*C*($%6#%,$*$##)4C%-/%*/+'($-$%)((%-9$%),)(C#6#7%j//+%
6,%-/%)%>2((%*C*($%/>%*9)4E$H06#*9)4E$7
Analysis:
M9$%),)(C#6#%6#%#6+6()4%-/%-9$%),)(C#6#%>/4%?4/*$024$%;7
Figure 4.3: Experimental Setup
computer
electrometer
analog
channel
interface