Agilent Technologies 4156b, Руководство пользователя

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Agilent 4155B/4156B User’s Guide Vol.2, Edition 5 4-55
Making a Measurement
Stress Force
To Set up ac (Pulse) Output
1. Press the Stress key in the PAGE CONTROL key group. Confirm that the
following is set on the STRESS: CHANNEL DEFINITION screen for the PGUs
that you want to set up for ac stress:
•
VPULSE
is set in the MODE field.
•
SYNC
is set in the FCTN field.
2. Select STRESS SETUP primary softkey.
3. In the PERIOD field, enter the pulse period.
4. In the WIDTH field, enter the pulse width.
5. In the DELAY TIME field, enter the delay time, which is the time from the
stress start to the beginning of the pulse leading edge. See “Delay time” on page
4-56.
6. In the PEAK VALUE field, enter the pulse peak value.
7. In the BASE VALUE field, enter the pulse base value.
8. In LEADING TIME field, enter the leading-edge transition time of pulse.
9. In TRAILING TIME field, enter the trailing-edge transition time of pulse.
The same period you set for PGU1 is also used for PGU2. For the other parameters,
you can set different values for PGU1 and PGU2.
To set other areas of the STRESS: STRESS SETUP screen, see “To Set up Stress
Condition/Timing” on page 4-53.
To modify the UNIT and NAME fields
Modify UNIT and NAME fields on STRESS: CHANNEL DEFINITION screen.
To set output impedance of PGU1 or PGU2
In the IMPEDANCE field, select:
• LOW secondary softkey to set output impedance to low (approximately zero).
• 50 ohm secondary softkey to set output impedance to 50
W
.