3
Basic
Measurement
Examples
Introduction
This
chapter
demonstrates
several
types
of
impedance
measurements
that
can
be
made
with
the
4285A
and
its
accessories
.
Each
example
includes
the
DUT's
specications
,
equipment
required,
measurement
conditions
,
and
operation
procedures
.
The
basic
procedures
to
perform
these
measurements
are
the
same
as
the
\Front
P
anel
Operation
"
in
Chapter
2.
Capacitor
Measurement
In
this
example
a
220
pF
ceramic
capacitor
will
be
measured
under
the
following
conditions
.
DUT
:
220
pF
ceramic
capacitor
(Agilent
P
art
Number
0160-4812)
Measurement
Conditions
Function
:
C
p
-D
Frequency
:
10
MHz
T
est
Signal
Level
:
1
V
Equipment
Required
16047C
T
est
Fixture
Shorting
bar
(Agilent
P
art
Number
5000-4226)
or
equivalent
Operation
Procedure
1.
Turn
the
4285A
ON.
2.
Set
the
4285A
to
the
normal
LCR
measurement
mode
which
uses
the
auto
balancing
bridge
measuring
method.
a.
Press
4
CA
T
ALOG/SYSTEM
5
and
N
NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN
SYSTEM
CONFIG
.
SY
STEM
CONFIG
page
will
now
be
displayed.
b.
Move
the
CURSOR
to
CONFIG
eld.
NNNNNNNNNNNNNNNNNNNN
I
BIAS
,
NNNNNNNNNNNNNNNNNNNNNNNNNNNNN
Q
ADAPTER
,
and
NNNNNNNNNNN
OFF
will
be
displayed.
c.
Press
NNNNNNNNNNN
OFF
to
perform
a
normal
LCR
measurement.
3.
Setup
the
4285A's
measurement
conditions
by
modifying
the
elds
on
the
MEAS
DISPLA
Y
page
.
Set
the
FREQ
eld
to
10
MHz.
(The
other
functions
,
including
the
measurement
function
are
left
at
the
default
settings
.)
a.
Move
the
CURSOR
to
the
FREQ
eld.
The
current
measurement
frequency
,
1.0000MHz
is
displayed
in
this
eld.
b.
Press
4
1
5
and
4
0
5 .
10
will
be
displayed
on
the
system
message
line
,
and
the
softkey
labels
will
change
to
the
available
units
(
NNNNNNNNNNN
kHz
and
NNNNNNNNNNN
MHz
).
Press
NNNNNNNNNNN
MHz
.
10.0000MHz
is
now
displayed
in
the
FREQ
eld.
Basic
Measurement
Examples
3-1
