Agilent Technologies 54501A Spezifikationen Seite 131

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Seitenansicht 130
Algorithms
One
of the
primary
features of the HP
S+510A
is
the ability
to make
automatic measurements on displayed waveforms.
This
chapter
provides
details on
how
automatic
measurements
are calculated
and some
tips on
how
to
irnprove
results.
Measurement Measurements
t1'pically
should be made
at the fastest
possible
sweep
speed for
the
most accurate
measurement
results.
The
entire
portion
of
the
waveform
that
is
to be
measured must
be displayed
on the
oscilloscope. For the
most
accurate
measluements,
consider
the following
conditions:
.
at least one complete
cycle must
be displayed for period
or
frequency
measurements
the entire
pulse
must be displayed
for
width measurements
the
leadi'g
edge
of the
waveform
must
be displayed for risetime
measurements
r
the tlailing
edge of the
waveform
must
be
displayed
for falltime
measurements
Setup
Making
Measurements
HP 54510A
Front‐
Panei Reference
If more
than one
waveform, edge,
or
pulse
is displayed,
the measurements
are made on the
frst
(leftmost) portion
of
the displayed waveform
that
can be used. If there are
not enough
data
points
the oscilloscope will
display
<
with
the
measurement
results.
This is
to
remind you
that
the
results may not be as accurate
as
possible.
It is recommended
that
you
re-scale
the displayed
waveform and make
your
measurement
again.
A:gOrithms
1
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