Measurement
Examples
This
section
describes
two
practical
examples
of
measuring
dielectric
constant
using
the
16451B
with
the
4194A
Impedance/Gain-phase
Analyzer
,
and
with
the
4284A
Precision
LCR
meter
.
Caution
DO
NOT
use
the
large
knob
to
bring
the
Guarded/Guard
electrode
into
contact
with
the
Unguarded
electrode
or
test
material,
doing
so
will
damage
the
micrometer
or
the
surface
of
the
electrodes
.
Y
ou
must
use
the
small
knob
when
you
bring
the
electrode
into
contact
with
another
electrode
or
test
material.
It
has
a
built
in
clutch
which
will
slip
at
a
specied
torque
.
Using
the
4194A
In
this
example
,
the
Contacting
Electrode
method
(Thin
Film
electrode
,
Electrode-C
or
Electrode-D)
is
used.
This
sample
procedure
performs
OPEN/SHORT
compensation,
measures
capacitance
of
test
material
from
1
kHz
to
10
MHz
and
derives
the
dielectric
constant
of
the
test
material.
1.
Apply
thin
lm
electrodes
to
the
surface
of
the
material
to
be
measured.
2.
Replace
the
electrodes
(Electrode-C
or
Electrode-D)
you
will
use
and
adjust
to
make
the
electrodes
parallel.
3.
Set
the
CABLE
LENGTH
switch
to
the
1
m
position.
4.
Connect
the
16451B
to
the
4194A's
Impedance
UNKNOWN
terminals
and
place
the
16451B
so
that
the
surfaces
of
electrodes
are
vertical.
5.
Press
4
LINE
5
to
turn
the
4194A
ON,
if
it
is
already
ON,
you
must
turn
it
OFF
once
and
then
turn
it
ON
again.
Then
press
the
blue
4
5
and
press
4
R
5 ,
4
S
5 ,
4
T
5 ,
4
ENTER/EXECUTE
5
to
reset
the
4194A .
6.
Press
4
FUNCTION
5 ,
NNNNNNNNNNNNNNNNNNNNNNNNNNNNN
IMPEDANCE
,
NNNNNNNNNNNNNN
more
,
NNNNNNNNNNNNNN
Cp-D
(P
arallel
capacitance
and
Dissipation
factor)
to
select
the
Cp-D
measurement
function.
7.
Press
4
SWEEP
5 ,
NNNNNNNNNNNNNNNNNNNNNNNNNNNNN
LOG
SWEEP
to
select
the
Log
sweep
mode
.
8.
Press
4
ST
ART
5 ,
4
1
5 ,
4
kHz
5 ,
4
STOP
5 ,
4
1
5 ,
4
0
5 ,
4
MHz
5
to
set
the
ST
ART
and
STOP
frequencies
for
the
sweep
frequency
range
.
9.
Put
the
attachment
for
error
compensation
with
the
cover
on
the
Guarded/Guard
electrode
then
turn
the
small
knob
cw
to
bring
it
into
contact
with
the
Unguarded
electrode
.
10.
Press
4
COMPEN
5 ,
NNNNNNNNNNNNNNNNNNNNNNNNNNNNN
ZERO
OPEN
,
4
ENTER/EXECUTE
5
to
perform
an
OPEN
compensation.
11.
After
Calibration
completed
is
indicated
and
you
hear
the
beeping,
remove
the
attachment.
12.
Remove
the
cover
on
the
attachment
for
error
compensation
and
put
the
attachment
on
the
Unguarded
electrode
and
bring
the
Guarded/Guard
electrode
into
contact
with
it.
13.
Press
4
COMPEN
5 ,
NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN
ZERO
SHORT
,
4
ENTER/EXECUTE
5
to
perform
a
SHORT
compensation.
3-52
Operation
Summary of Contents for 16451B
Page 8: ... C Copyright 2008 Agilent Technologies ...
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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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