Stanford Research Systems SR785, Руководство по эксплуатации и программированию

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Status Indicators 3-29
SR785 Dynamic Signal Analyzer
If the Trigger Arming Mode is Auto Arm and the Trigger Source is Continuous, capture
starts immediately. Otherwise, the selected Trigger Arming Mode and Source will be in
effect and the next trigger event will start capture.
While capture is in progress, the displays do not update. The Capture Progress indicator
shows how much of the desired capture length has been completed. If the Capture Mode
is 1-Shot, capture stops when the buffer is full. Press [Stop Capture] to halt capture
before the buffer is full.
If the Capture Mode is Continuous, once capture is started, it continues indefinitely and
fills the capture buffer in a circular fashion. In this case, press [Stop Capture] to halt
capture with the most recently acquired data stored in the buffer.
Use the [Capture] <Memory Allocation> menu to allocate memory between the capture
buffer, waterfall and order track storage and the arbitrary source waveform. Capture
memory must be allocated before the capture buffer may be used.
To playback from the capture buffer, change the Input Source to Playback.
Command: CSTR
[Stop Capture]
[Stop Capture] stops storing data in the capture buffer.
If the Capture Mode is 1-Shot, capture stops when the buffer is full. Press [Stop Capture]
to halt capture before the buffer is full.
If the Capture Mode is Continuous, once capture is started, it continues indefinitely and
fills the capture buffer in a circular fashion. In this case, press [Stop Capture] to halt
capture with the most recently acquired data stored in the buffer.
Turn off Auto Offset during capture to avoid interrupting the input signal.
To playback from the capture buffer, change the Input Source to Playback.
Command: CSTP
[Active Display]
Pressing [Active Display] toggles the active display. In single and overlay display
format, the display switches between Display A and Display B. The display label, A or
B, is at the upper left of each display. In dual display format, [Active Display] switches
which display is active as indicated by the highlighted Marker Position bar above the
graph.
The active display determines which display’s parameters are displayed in the menus.
For example, activating Display A and pressing [Display Setup] allows you to select the
measurement for Display A. Pressing [Active Display] once makes Display B active and
allows you to select the measurement for Display B using the same menu. Only those
parameters which are associated with an individual display have differing values