Stanford Research Systems SR785, Руководство по эксплуатации и программированию

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4-136 Waterfall Menu
SR785 Dynamic Signal Analyzer
Use [Alt] knob to move the marker from record to record (along the Z axis) and scroll the
display through the waterfall buffer. Use <Cursor Z to> to move to a specified record.
The marker position along the Z axis is displayed in the Marker Position Bar next to the
marker frequency or time. The Z axis position is the record number starting from 0 (most
recently stored at the back of the waterfall).<Record to Trace> saves the record selected
by the marker to a Trace.
Use the knob without [Alt] to move the marker along the X axis within a record. <Slice
to Trace> saves a ‘slice’ to a Trace. A slice is the history of a single X position (data at
the marker X position from all stored records).
The Waterfall Display for each display can be selected separately. This entry field can be
linked to both displays by using the [Link] key.
Command: WDSP (?) d {, i}
Storage
Select the type of Waterfall Storage [Off, Continuous, One Shot]. The two displays
always have the same Waterfall Storage mode. Waterfall storage is not available for
Swept Sine measurements.
Storage Off does not store any measurements to waterfall memory and changes the
Waterfall Display to a graphical scroll only.
Continuous storage adds measurement records to the waterfall memory until
[Pause/Cont] is pressed. The last Total Count number of records are saved in memory
and may be displayed.
One shot stores the Total Count number of measurement records and pauses the waterfall
storage. The first Total Count number of records are saved in memory. Pause the
measurements to scroll through the waterfall memory.
Waterfall memory must be allocated before waterfall storage may be used.
Linear Averaging
If Waterfall Storage is On, the waterfall buffer only stores the completed linear averages,
not each individual measurement. Each time the linear average is done, the result is
stored in the waterfall buffer and the average is reset and started over (instead of
stopping). Each completed average counts as a single waterfall record.
Command: WSTO (?) d {, i}
Save Option
Select whether the analyzer should store all the measurements in the current
measurement group, or only the currently displayed measurements.