Teledyne HDO9000, Руководство оператора

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HDO9000 High Definition Oscilloscopes Operator's Manual
Smart Triggers
The Smart subgroup triggers allow you to apply Boolean logic conditions to the basic signal
characteristics of level, slope, and polarity to determine when to trigger.
Glitch triggers upon finding a pulse-width that is less than a specified time or within a specified range
of times.
Window triggers when a signal enters or exits a window defined by voltage thresholds.
Interval triggers upon finding a specific interval, the time (period) between two consecutive edges of
the same polarity: positive to positive or negative to negative. Use the interval trigger to capture
intervals that fall short of, or exceed, a specified range.
Dropout triggers when a signal loss is detected. The trigger is generated at the end of the timeout
period following the last trigger source transition. It is used primarily in Single-Shot acquisitions with
a pre-trigger Delay.
Runt triggers when a pulse crosses a first threshold, but fails to cross a second threshold before re-
crossing the first. Other defining conditions for this trigger are the edge (triggers on the slope
opposite to that selected) and runt width.
SlewRate triggers when the rising or falling edge of a pulse crosses an upper and a lower level. The
pulse edge must cross the thresholds faster or slower than a selected period of time.
Trigger Set Up
To access the Trigger setup dialog, press the front panel Trigger Setup button or touch the Trigger
descriptor box .
Different controls will appear depending on the Trigger Type selected (e.g., Slope for Edge triggers).
Complete the settings shown after making your selection.
The trigger condition is summarized in a preview window at the far right of the Trigger dialog. Refer to
this to confirm your selections are producing the trigger you want.
Note: If you wish to trigger on digital input using an external Mixed-Signal device, instructions
for installing the device are in the product manual on our website at
teledynelecroy.com/support/techlib under Manuals > Mixed Signal Test Solutions.
Source
For most triggers, the Source is the analog channel or digital line to inspect for the trigger conditions.
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