LeCroy WAVESURFER User Manual

Operator's Manual
102 WS-OM-E Rev B
Rise Rise time: Duration of rising
edge from 10-90%.
Threshold arguments specify
two vertical values on each edge
used to compute rise time.
Formulas for upper and lower
values:
lower = lower thresh. x amp/100
+ base
upper = upper thresh. x amp/100
+ base
Time at lower threshold
minus
Time at upper threshold
averaged over each
rising 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.
Rise 20-80% Rise 20% to 80%: Duration of
pulse waveform's rising
transition from 20% to 80%,
averaged for all rising transitions
between the cursors.
Average duration of
rising 20-80% 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.
RMS Root Mean Square of data
between the cursors -- about
same as sdev for a zero-mean
waveform.
Gives similar result
when applied to time
domain waveform or
histogram of data of
same waveform. But
with histograms, result
may include
contributions from more
than one acquisition.
Where: v
i
denotes
measured sample
values, and N =
number of data points
within the periods
found up to maximum

LeCroy WAVESURFER Specifications

General

Brand	LeCroy
Model	WAVESURFER
Category	Test Equipment
Language	English