5. The following screenshot shows a high-quality sensor response.
6.
Check
Peak
Frequency
to
ensure
that
the
main
sensor
reading
is
in
the
expected
range.
7.
A
Signal-to-Noise
Ratio
of
six
or
greater
is
preferred.
8.
Check
the
Thermistor
value
(in
ohms,
Ω),
if
used.
9.
If
multiple
peaks
occur
in
the
response
Spectrum,
choose
a
different
Begin
Frequency
and
End
Frequency
to
eliminate
unwanted
signals
yet
still
allow
for
variation
of
the
sensor
output
frequency
due
to
changes
in
the
measured
phenomenon.
The
grey
shading
in
the
Spectrum
display
indicates
the
set
beginning
and
ending
frequencies.
Click
Options
to
temporarily
experiment
with
different
frequency
window
ranges.
Use
the
Settings
Editor
>
Channel
1,
Channel
2,
and
Channel
3
to
make
permanent
changes
to
the
Begin
Frequency
and
End
Frequency
settings.
10.
Click
Save
Last
Results
or
Export
to
save
the
test
information
to
a
file.
These
saved
results
can
be
stored
and
used
as
a
historical
reference
(baseline
or
datum
point)
for
comparison
with
future
behavio
u
r
of
the
same
sensor.
11.
Use
the
Off
Line
Analysis
tab
when
disconnected
from
the
CRVW3
to
open
and
view
a
file
saved
previously.
See
for
more
information.
CRVW3 3-Channel Vibrating-Wire Data Logger
50
