Good Will Instrument GDS-3000A Series, Руководство пользователя

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ADVANCED CONFIGURATION
85
Segmented Memory Acquisition
The advanced segmented memory utility allows the scope memory
to be divided into different segments. Each time the scope is
triggered, it only acquires data for one segment of memory at a
time. This allows you to optimize the scope memory to only
perform signal acquisition during important signal events.
For example, for a signal with a number of pulses, normally the
oscilloscope will acquire the signal until the acquisition memory of
the scope is filled up and then it will re-arm the trigger and then
capture again. This could result in a number of events not being
captured or captured at a less-than-desired resolution (depending
on the horizontal scale and sampling rate). However, the
segmented memory function would effectively allow you to
capture more of the signal than you would otherwise. The
diagrams below illustrate this point.
Normal acquisition mode example:
Normal memory acquisition period Rearm time Next trigger
Segmented memory acquisition example:
Segment
n
Segment
n+1
Segment
n+2
Segment
n+3
Segment
n+4
Segment
n+5