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Teledyne LeCroy WaveExpert 100H Operators Manual User Manual

Page 175

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Wave Expert

WE-OM-E Rev A

173

50% point between the local
baseline and the local peak.

used to discriminate
levels from noise in
data.

Available with DDM2
option.

Standard in
DDA-5005A.

Range

Calculates range (max min)
of a histogram.

Available with DDM2,
JTA2, and XMAP
options.

Standard in
DDA-5005A.

Resolution

Ratio of taa for a high and
low frequency waveform

taa (HF)/mean taa
(LF)*100

Hysteresis argument
used to discriminate
levels from noise in
data.

Standard parameter.

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.

Standard parameter.