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Hist ampl, Histogram amplitude, Hbase – Teledyne LeCroy WaveRunner XI SERIES Operator’s Manual User Manual

Page 91: Histogram base

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O

PERATOR

S

M

ANUAL

WRXi-OM-E Rev C

91

 

hist ampl 

Histogram Amplitude 

ion:

wo most populated peaks in a histogram. This parameter is useful

Description:

e

Definit

The difference in value of the t
for waveforms with two primary parameter values, such as TTL voltages, where hampl would
indicate the difference between the binary `1' and `0' voltage values.

The values at the center (line dividing the population of peak in half) of the two highest peaks ar
determined (see pks parameter description:). The value of the leftmost of the two peaks is the
histogram base (see hbase). While that of the rightmost is the histogram top (see htop). The
parameter is then calculated as:

hampl = htop hbase

Example:

In this histogram, hampl is 152 mV 150 mV = 2 mV.

hbase 

Histogram Base 

The value of the leftmost of the two most populated peaks in a histogram. This parameter is
primarily useful for waveforms with two primary parameter values such as TTL voltages where

Definition:

Description:

Example:

hbase would indicate the binary `0' voltage value.

The two highest histogram peaks are determined. If several peaks are of equal height the
leftmost peak among these is used (see pks). Then the leftmost of the two identified peaks is
selected. This peak's center value (the line that divides the population of the peak in half) is the
hbase.