Teledyne LeCroy WaveExpert 100H Operators Manual - Manual (Page 160)

Operator’s Manual
158
WE-OM-E Rev A
may be positive- or
negative-going.
cyclic
Mean
Cyclic mean: Computes the
average of waveform data.
Contrary to mean, computes
average over an integral
number of cycles, eliminating
bias caused by fractional
intervals. Average of data values
of an integral number of
periods Choose this parameter
by selecting Mean from
the parameter table,
then touching the
Cyclic checkbox.
Standard parameter.
cyclic
Median
Cyclic median: Computes
average of base and top
values over an integral
number of cycles, contrary to
median, eliminating bias
caused by fractional
intervals. Data value for which
50% of values are
above and 50% below Choose this parameter
by selecting Median
from the parameter
table, then touching the
Cyclic checkbox.
Standard parameter.
cyclic
RMS
Cyclic root mean square:
Computes square root of
sum of squares of data
values divided by number of
points. Contrary to rms,
calculation is performed over
an integral number of cycles,
eliminating bias caused by
fractional intervals. Where: v
i
denotes
measured sample
values, and N = number
of data points within the
periods found.
Choose this parameter
by selecting RMS from
the parameter table,
then touching the
Cyclic checkbox.
Standard parameter.
cyclic
Std dev
Cyclic standard deviation:
Standard deviation of data
values from mean value over
integral number of periods.
Contrary to sdev, calculation
is performed over an integral
number of cycles, eliminating
bias caused by fractional
intervals. Where: v
i
denotes
measured sample
values, and N = number
of data points within the
periods found.
Choose this parameter
by selecting Std dev
from the parameter
table, then touching the
Cyclic checkbox.
Standard parameter.
Delay Time from trigger to
transition: Measures time
between trigger and first 50% Time between trigger
and first 50% crossing
after left cursor Standard parameter.