Keysight DSOX3012T, Руководство пользователя

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Triggers
11
Keysight InfiniiVision 3000T X-Series Oscilloscopes User's Guide 177
When triggering on a positive pulse, the trigger will occur on the high to low
transition of the pulse if the qualifying condition is true. When triggering on a
negative pulse, the trigger will occur on the low to high transition of the pulse if
the qualifying condition is true.
6 Press the qualifier softkey ( < > >< ) to select the time qualifier.
The Qualifier softkey can set the oscilloscope to trigger on a pulse width that is:
• Less than a time value ( < ).
For example, for a positive pulse, if you set t<10 ns:
• Greater than a time value ( > ).
For example, for a positive pulse, if you set t>10 ns:
• Within a range of time values ( >< ).
For example, for a positive pulse, if you set t>10 ns and t<15 ns:
7 Select the qualifier time set softkey ( < or > ), then rotate the Entry knob to set
the pulse width qualifier time.
The qualifiers can be set as follows:
• 2 ns to 10 s for > or < qualifier (5 ns to 10 s for 350 MHz and lower
bandwidth models).
• 10 ns to 10 s for >< qualifier, with minimum difference of 5 ns between upper
and lower settings.
Pulse width
trigger < qualifier
time set softkey
• When the less than ( < ) qualifier is selected, the Entry knob sets the oscilloscope
to trigger on a pulse width less than the time value displayed on the softkey.
10 ns 10 ns
Trigger
10 ns 10 ns
Trigger
10 ns 15 ns
Trigger
12 ns