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LabMaster 10 Zi Oscilloscopes
Sampling Modes
Depending on your timebase, you can choose:
Real Time Sampling Mode (below) - Also known as single-shot sampling
mode, a series of digitized voltage values sampled on the input signal at a
uniform rate.
Sequence Sampling Mode (on page 59) - Many trigger events stored as
segments into the oscilloscope's memory.
Selecting a Sampling Mode
1.
Touch Timebase → Horizontal Setup... from the menu bar.
2.
On the Timebase dialog, select a Sample Mode.
3.
If you chose Sequence Mode, touch the Sequence tab and provide
values for Number of Segments, Enable Timeout, Timeout (value),
Display Mode, and Show Sequence Trigger Times.
Single-shot Sampling Mode
A single-shot acquisition is a series of digitized voltage values sampled on
the input signal at a uniform rate. It is also a series of measured data values
associated with a single trigger event. The acquisition is typically stopped a
defined number of samples after this event occurs: a number determined by
the selected trigger delay and measured by the timebase. The waveform's
horizontal position (and waveform display in general) is determined using
the trigger event as the definition of time zero.
You can choose either a pre- or post-trigger delay. Pre-trigger delay is the
time from the left-hand edge of the display grid forward to the trigger
event, while post-trigger delay is the time back to the event. You can sample
the waveform in a range starting well before the trigger event up to the
moment the event occurs. This is 100% pre-trigger, and it allows you to see
the waveform leading up to the point at which the trigger condition was
met and the trigger occurred. (The instrument offers up to the maximum
record length of points of pre-trigger information.) Post-trigger delay, on
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922561-00 Rev A
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