Chapter 1 Taking Measurements with the NI 5911
NI 5911 User Manual 1-6 ni.com
The VirtualBench-Scope soft front panel has the following features:
• Channels selector—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 AC coupling.
– Volts/div adjusts the vertical resolution of the channel you select.
– V. Position controls the displayed voltage offset.
• Timebase controls the length of the time period that is displayed. Turn
the knob clockwise to reduce the time period. Each horizontal division
represents one time period.
• Vertical Slider adjusts the voltage offset for each channel. Use this
slider to adjust multiple waveforms.
• Trigger settings group controls the conditions required for signal
acquisition. For example, you can command VirtualBench-Scope to
wait for a digital trigger or command it to acquire data without
triggering (in free-run mode).
• Main control bar buttons:
– Run acquiresdata continuously. Deselecting this buttonplaces the
VirtualBench-Scope in idle mode.
– Single instructs VirtualBench-Scope to perform a single-sweep
acquisition.
– Auto Setup configures the scope for the best timebase, volts per
division, and trigger setting for each channel currently selected
with the channel selector.
– Mode sets the mode of the scope to either volts versus time or
X versus Y mode.
– Select Cursor 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
arrows to the right of the magnifying glass to zoom out to full scale.
Note
Refer to the VirtualBench-Scope Online Help for additional help on the front panel
items.
