LeCroy 9300C Series, Operator'S Manual

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D –7
Parameter Measurement
P a r a m e t e r a n d w h a t i t d o e s Definition Notes
dur
For single sweep waveforms, dur is 0; for
sequence waveforms: time from first to
last segment’s trigger; for single
segments of sequence waveforms: time
from previous segment’s to current
segment’s trigger; for waveforms
produced by a history function: time from
first to last accumulated waveform’s
trigger.
Time from first
to last
acquisition — for
average,
histogram or
sequence
waveforms
duty Duty cycle: Width as percentage of
period. width/period
(See Fig. D–2)
f80–20%
Fall 80–20 %: Duration of pulse
waveform's falling transition from 80% to
20%, averaged for all falling transitions
between the cursors. Average duration
of falling
80–20 %
transition
On signals
NOT
having two
major levels (triangle or saw-
tooth waves, for example), top
and base can default to
maximum and minimum, giving,
however, less predictable
results.
f@level
Fall at level: Duration of pulse
waveform's falling edges between
transition levels. Duration of
falling edge
between
transition levels
On signals
NOT
having two
major levels (triangle or saw-
tooth waves, for example), top
and base can default to
maximum and minimum, giving,
however, less predictable
results.
Fall time: Measures time between two
specified values on falling edges of a
waveform. Fall times for each edge are
averaged to produce final result.
Arguments
Threshol
d
Remote Lower
Limit
Upper
Limit
Default
Lower low 1 % 45 % 10 %
fall
Upper high 55 % 99 % 90 %
Time at lower
threshold -
Time at upper
threshold
averaged over
each falling edge
(See Fig. D–1)
On signals
NOT
having two
major levels (triangle or saw-
tooth waves, for example), top
and base can default to
maximum and minimum,
giving, however, less
predictable results.