Automatic Phase Measurement - AEMC OX III Series User Manual

Applications (cont'd)
4. Measurement
using cursors
Recall
5. Phase Offset
measurement/cursors
6. Automatic phase
measurement
Reminder
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IX - 174
• Select measurement by cursors using the menu:
Measure Manual measurements (dt, dv) (see §. Measure Menu).
∗ Two measurement cursors (1 and 2) are displayed as soon as the
menu has been activated.
∗
The 2 measurements indicated under the trace display are
dt (interval between the 2 cursors as a function of the time base) and
dv (voltage between the 2 cursors as a function of the vert. sensitivity).
Example: (1)dt : 2,150 ms, dv = 250.0 mV
• The two measurement cursors (1 and 2 can be moved directly on the
screen by means of the stylus.
In the same way, they can also be moved horizontally by means of
the stylus, by selecting the 1 (cursor 1) or the 2 (cursor 2) in the
bargraph of the status zone.
• If the unattached cursors option is not activated (see §. Measure Menu
Unattached cursors), the cursors remain linked to the trace
during the moves.
• If the unattached cursors option is active, the cursors can be moved
anywhere on the screen.
• Initially, there must be 2 out-of-phase signals on 2 channels (ch1 and ch2).
• Select the reference trace in relation to which you want to perform
the phase measurements via the menu:
Measure Reference
Example: Reference Measurement
• Select automatic phase measurement via the menu:
Measure Phase measurements (see §. Phase measurement).
Example: Phase Measurement
∗ The 2 cursors (+) of the automatic measurements are displayed on
the reference trace. A cursor "ϕ" is displayed on the trace concerned
by the phase measurements.
∗ The phase measurement (in °) is indicated under the display of
the curves.
Example: (1)Ph (2) = 180.0°
• The 3 cursors are fixed; they cannot be moved.
If it is not possible to perform the measurement , "-.- -" appears.
•
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Trace 1 to Trace 4 (see §. Reference).
Trace 1.
Phase Trace 2.
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Applications
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