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4349B
A
dditional
Error
Due
to
V
oltage
Source
Noise
The
error
caused
by
the
DC
voltage
source's
noise
appears
as
a
measurement
value
uctuation.
Figure
6-5
shows
an
estimation
of
the
additional
error
caused
by
the
DC
voltage
source's
noise
under
the
following
conditions:
External
DC
voltage
output
:
100
V
4349B
Measurement
Speed
:
30
ms
DC
voltage
source
performance
:
Ripple
5
Vrms(@50
Hz)
Wide
band
nosie
1
Vrms/
p
H
z
(@50
Hz)
Switching
noise
<
10
mVrms(@100
Hz)
Note
The
DC
voltage
source's
output
resistance
is
assumed
to
be
0
in
this
example
.
Figure
6-5.
A
dditional
Error
Due
to
V
oltage
Source
Noise
F
or
example
,
when
measuring
a
capacitor
of
2
G
resistance
and
1
F
capacitance
,
the
leakage
current
(50
nA=100
V/2
G)
can
be
measured
within
10%
additional
error
.
That
is
,
the
measurement
value
will
uctuate
from
45
nA
to
55
nA
(or
1.82
G
to
2.22
G).
Figure
6-5
shows
the
measurement
error
due
to
the
external
DC
voltage
source
only
.
T
o
estimate
the
total
system
measurement
error
,
it
is
also
necessary
to
include
the
4349B's
measurement
accuracy
in
addition
to
the
error
shown
in
Figure
6-5.
6-10
Application
Measurement
Содержание 4349B
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Страница 29: ...C Overload No Contact Operations Messages Instrument Errors Messages 2 GPIB Errors Messages 3 Index Contents 9 ...
Страница 42: ...4349B Figure 1 1 Power Cable Supplied 1 10 Getting Started ...
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Страница 173: ...4349B Figure 8 5 Current Measurement Additional Error Measurement Time 400 msec General Information 8 11 ...
Страница 176: ...4349B Figure 8 9 10 Additional Error Measurement Time 400 msec 8 14 General Information ...
Страница 210: ...4349B Figure B 1 Handler Interface Comparison Output Signals Diagram B 2 Handler Interface Installation ...
Страница 212: ...4349B Figure B 3 Handler Interface Input Signal Diagram B 4 Handler Interface Installation ...
Страница 216: ...4349B Figure B 4 A1 Main Board B 8 Handler Interface Installation ...
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