Agilent Technologies InfiniiVision 7000B Series Guia do Utilizador descarregar pdf (Página 141)

100

101

Triggering 4

InfiniiVision Oscilloscopes User’s Guide 141

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.

4 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:

5 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 bandwidth models)

• 10 ns to 10 s for >< qualifier, with minimum difference of 5 ns between upper and

lower settings

< 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.

Trigger

10 ns

Trigger

10 ns10 ns

Trigger

12 ns

15 ns

10 ns

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