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Glossary
CSA7000 Series, TDS7000 Series, & TDS6000 Series Instruments User Manual
Glossary- 9
Logic state trigger
The instrument checks for defined combinatorial logic conditions on
channels 1, 2, and 3 on a transition of channel 4 that meets the set slope and
threshold conditions. If the conditions of channels 1, 2, and 3 are met then
the instrument triggers.
Logic pattern trigger
The instrument triggers depending on the combinator ia l logic condition of
channe ls 1, 2, 3, and 4. Allowable conditions ar e AND, OR, NAND, and NOR.
Low
The value used as 0% in automated measurements (whenever high ref, mid
ref, and low ref values are needed as in fall time and rise time measure-
ments). May be calculated using either the min/max or the histogram
method. With the min/max method (most useful for general waveforms) it is
the minimum value found. With the histogram method (most useful for
pulses) it refers to the most common value found below the mid point.
Maximum
Amplitude (voltage) measurement of the maximum amplitude. Typically the
most positive peak voltage.
Mean
Amplitude (voltage) measurement of the arithmetic mean over the entire
waveform.
Measurement
An automated numeric readout that the instrument provides directly from the
displayed trace in real time, without operator intervention.
Measurement Parameter
One of several controls that the instrument operator can exercise over the
automated measurement process.
Measurement Statistics
The accumulation of a history of individual measurement readouts, showing
the mean and standard deviation of a selected number of samples.