Chapter1 TakingMeasurements with the NI 5911
NI5911 User Manual 1-6 ni.com
The VirtualBench-Scopesoft front panel has the following features:
•Channelsselector—picks a channel or math functions that display
waveforms.
•Channel settings group:
–Channel settings selector selects the channel whose settings will
be modified.
–Coupling toggles between DC and ACcoupling.
–Volts/divadjusts the vertical resolution of the channel you select.
–V.Po sition controls the displayed voltageoffset.
•Timebase controls the length of the time period that is displayed. Turn
theknob clockwise to reduce the time period. Each horizontal division
represents one time period.
•VerticalSlider adjusts the voltage offset for each channel. Use this
slider to adjust multiple waveforms.
•Trigg er settings group controls the conditions required for signal
acquisition. Forexample, you can command VirtualBench-Scope to
waitfor a di gital trigger or command it to acquire data without
triggering (in free-run mode).
•Main control barbuttons:
–Runacquires data continuously. Deselecting this buttonplaces the
VirtualBench-Scopein idle mode.
–Single instructs VirtualBench-Scopeto perform a single-sweep
acquisition.
–Auto Set up configures the scope for the best timebase, volts per
division,and trigger setting for each channel currently selected
with the channel selector.
–Modeset s the mode of the scope to either volts versus time or
X versusY mode.
–SelectCursor activates two cursors on the waveform display.
•The zoom controls adjust the view of your display data. Click the
magnifying glass icon to zoom in on the displayed data. Click the
arrowsto the right of the magnifying glass to zoom out to full scale.
Note Referto the VirtualBench-Scope Online Help for add itional help on the front panel
items.