Teledyne LeCroy WaveExpert 100H Operators Manual - Manual (Page 163)

Wave Expert
WE-OM-E Rev A
161
Fall time Fall time: Duration of falling
edge from 90-10%.
Threshold arguments specify
two vertical values on each
edge used to compute fall
time. Formulas for upper and
lower values:
lower = lower thresh. x
amp/100 + base
upper = upper thresh. x
amp/100 + base
Time at upper threshold
minus
Time at lower threshold
averaged over each
falling edge
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.
Standard parameter.
Fall 80-20% 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.
Standard parameter.
Fall@level Fall at level: Duration of
pulse waveform's falling
edges between
user-specified transition
levels. See also Rise@level. 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.
Standard parameter.
First Indicates value of horizontal
axis at left cursor. Horizontal axis value at
left cursor Indicates location of left
cursor. Cursors are
interchangeable: for
example, the left cursor
may be moved to the
right of the right cursor