Acquisition
Interpolated Real-Time Sampling
In interpolated real-time sampling, the
instrument di
gitizes all of the points it
acquires using one trigger event. If the
instrument cannot acquire enough samples
for a complete
waveform at the maximum
real-time sample rate, it interpolates. Use
interpolated real-time sampling to capture
single-shot
, transient events, or slow
acquisitions.
Equivalent-Time Sampling
The instrument uses equivalent-time
sampling t
o extend its sample rate beyond
its real-time maximum sampling rate.
Equivalent-time sampling is only used if
Equivalen
t Time is selected and the time
base is set to a sampling rate that is too fast
to create a waveform record using real-time
sampling
.
The instrument makes multiple acquisitions
of a repetitive waveform to obtain the sample
density
required for one complete waveform
record. Thus, equivalent time sampling
should only be used with repetitive signals.
DPO7000 Series and DPO/DSA70000/B Series Quick Start User Manual 29
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