Agilent Technologies 4263B User Manual

4263B
T
est
Current
Level
Figure
3-6
shows
the
4263B
's
simplied
model.
The
actual
current level
applied to
aDUT
depends
on
the
test
signal
level
(Vs), the
DUT's impedance
value (Z),
and the
4263B's
source
resistance
(Rs)
which
is
in
series
with the
DUT.
The actual
current level
(I) through
the DUT
is
calculated
using
the
following
equations
.
There
are
two
dierent
equations
according
to
which
voltage
source
is used:
AC
or DC.
Impedance
Measurement
|
The
test
signal
source is
AC,
and the
actual test
current
level
can
be
obtained
as
follows:
Rs
is
selected
by
the
4263B
's measurement
range setting.
Measurement
Range
Setting
Rs
0.1
and
1
25

10 
to
1
M
100 
I
is
calculated
using
following
equation:
I
=
V
s
Z
+
R
s
DC
Resistance Measurement
(Option 001
only) |
When
doing
the
DC
Resistance
measurement
( LS-DCR
, LP-DCR
,
or
L2-R2
),
the
4263B
switches
the
test
signal
source
from
A
C
to
DC (the
DC voltage
source
is
6
2
V).
Figure 3-12.
Test Signal for DCR Measurement
Figure 3-12 shows the test signal for a DC resistance measurement. For a DC resistance
measurement, the 4263B measures inductance, LS , LP ,or L2 , while applying an AC test
signal, and then measures the DC resistance, DCR or R2 , while applying a DC test signal. The
4263B measures DC resistances two times, switching the test signal level to +2 V and then
to 0 2V, and then calculates the DC resistance value. This method cancels the oset error of
the DC voltage source.
3-32 Function Reference and Technical Information

Agilent Technologies 4263B Specifications

General

Brand	Agilent Technologies
Model	4263B
Category	Measuring Instruments
Language	English