Stanford Research Systems SR785, Руководство по эксплуатации и программированию

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4-98 Playback Input Menu
SR785 Dynamic Signal Anaylzer
Choose a Capture Buffer as the Measurement and use Zoom and Pan to show the region
of interest. Press <Set Left Edge> to set the Capture Playback Start to the marker
position. The Playback Length is not changed.
If the requested Start position plus the Playback Length (in points) exceeds the Capture
Length of the buffer, the Playback Length is reduced.
Set Right Edge
The active display must be a Capture Buffer measurement for this key to be active.
Choose a Capture Buffer as the Measurement and use Zoom and Pan to show the region
of interest. Press <Set Right Edge> to set the Capture Playback Length to the marker
position minus the Playback Start. The Playback Start is not changed.
If the marker position is to the left of the Playback Start, then the Playback Length is set
to the minimum (2 kPts).
Playback Mode
Select the Capture Playback Mode [1-Shot, Circular].
In 1-Shot playback, the buffer is played a single time. The playback halts when the end
of the buffer is reached.
In Circular playback, the playback starts over when the end of the buffer is reached.
There is often a discontinuity in the playback measurement when the playback jumps
from the end to the start of the buffer.
In either mode, press [Start/Reset] to restart playback at the start again.
The Capture Progress indicator at the top of the screen shows the playback progress
through the buffer.
Both channels playback with the same Playback Mode.
Command: IMOD (?) {i}
Playback Speed
Select the Capture Playback Speed [Normal, Every Time Record].
Normal Playback Speed plays back the capture buffer in real time, i.e. 1 second of
capture takes 1 second to playback. Normal Speed playback looks like the ‘live’ real time
measurement. Normal playback is limited to the real time limitations of the equivalent
real time analog input measurement.
Not all time records are displayed during Normal playback though all time records
contribute to averaged measurements. For example, 1 second of capture contains 256 full