Using
the
4284A
In
this
example
,
the
Non-Contacting
method
(Air
Gap
method)
and
Electrode-A
or
Electrode-B
is
used.
The
sample
procedure
performs
OPEN/SHORT
compensation
and
measures
the
capacitance
of
the
test
material
at
1
MHz.
1.
Replace
the
electrodes
(Electrode-A
or
Electrode-B)
you
will
use
and
adjust
the
electrodes
for
parallelism.
2.
Press
4
MEAS
SETUP
5 ,
and
NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN
CORRECTION
and
move
the
cursor
to
the
CABLE:
eld
and
press
NNNNNNNNNNN
1
m
.
3.
Connect
the
16451B
to
the
4284A 's
Unknown
T
erminals
and
place
the
16451B
so
that
the
surface
of
electrodes
is
horizontal.
4.
Press
4
DISPLA
Y
F
ORMA
T
5
and
if
the
FUNC:
eld
does
not
indicate
Cs-D
move
the
cursor
to
the
FUNC:
eld
and
press
NNNNNNNNNNNNNN
Cs-D
.
5.
Move
the
cursor
to
the
FREQ:
eld
and
press
4
1
5 ,
NNNNNNNNNNN
MHz
to
specify
the
measurement
frequency
.
6.
Put
the
attachment
for
error
compensation
with
the
cover
on
the
Guarded/Guard
electrode
then
turn
the
small
knob
cw
to
bring
the
attachment
into
contact
with
the
Unguarded
electrode
.
7.
Press
4
MEAS
SETUP
5 ,
and
NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN
CORRECTION
.
Move
the
cursor
to
the
OPEN:
eld
and
press
NNNNNNNNNNNNNNNNNNNNNNNNNNNNN
MEAS
OPEN
to
perform
an
OPEN
correction
measurement.
8.
After
indicating
Open
measurement
completed
and
beeping,
press
NNNNNNNN
ON
to
validate
the
OPEN
correction.
9.
Turn
the
small
knob
ccw
to
remove
the
attachment.
10.
Put
the
attachment
for
error
compensation
without
the
cover
on
the
Unguarded
electrode
then
turn
the
small
knob
cw
to
bring
the
Guarded/Guard
electrode
into
contact
with
the
attachment.
11.
Move
the
cursor
to
the
SHORT:
eld
and
press
NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN
MEAS
SHORT
to
perform
SHORT
correction
measurement.
12.
After
indicating
\Short
measurement
completed"
and
beeping,
press
NNNNNNNN
ON
to
validate
the
SHORT
correction
and
remove
the
attachment.
13.
Press
4
DISPLA
Y
F
ORMA
T
5
to
start
the
measurement.
14.
Using
the
small
knob
of
the
16451B ,
set
the
micrometer's
scale
to
10
m
and
adjust
to
set
the
electrodes
accurately
parallel.
(F
or
more
information
of
this
procedure
,
refer
to
\A
ccurate
A
djustment
to
Make
Electrodes
P
arallel")
15.
After
adjusting,
put
the
test
material
into
the
gap
between
the
electrodes
.
16.
Set
the
micrometer's
scale
to
(t
g
)
so
that
the
gap
distance
between
the
Guarded/Guard
electrode
and
the
test
material
is
below
10
%
of
thickness
of
the
test
material..
17.
Press
4
DISPLA
Y
F
ORMA
T
5
then
the
4284A
starts
the
measurement
and
indicates
the
measurement
capacitance
value
.
Operation
3-55
Summary of Contents for 16451B
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Page 56: ...Figure 3 6 Summary of Measurement Methods 3 10 Operation ...
Page 83: ...because a change of temperature causes mechanical dimensions to change Operation 3 37 ...
Page 119: ...Figure 4 4 Cable Connection Diagram Service 4 9 ...
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