AEMC OX7102-CII, User Manual

Page: 80 / 208

Oscilloscope Mode - The "Measure" Menu
IV - 80 SCOPIX Oscilloscopes
Oscilloscope Mode (cont'd)
Phase measurement
Trace1 Phase
Trace2 Phase
Trace3 Phase
Trace4 Phase
Automatic measurement of a trace's phase compared with a reference trace
(See §. Reference Measurement).
This menu selects the trace on which phase measurements are to be
performed.
To deactivate phase measurement, deselect the selected phase
measurement using the same menu.
•
The " " symbol indicates the trace selected for phase measurement.
•
Activation of the phase measurement, if it is possible, will cause display
of 3 markers:
2 markers for the reference trace period
1 marker indicated as
ϕ
on the trace for which the phase
measurements will be performed.
These 3 markers are positioned automatically; they cannot be moved.
•
The phase measurement (in °) of the trace selected compared with the
reference trace is indicated in the measurement display status area
Example: (1)Ph (2) = 180.0°
•
If the measurement cannot be performed, " - . - -" is displayed.
Manual
measurements
(dt, dv) Cursor measurements on the reference signal
The measurement cursors (1 and 2) are displayed as soon as the menu is
activated.
The two measurements made are:
dt (time difference between the two cursors),
dv (voltage difference between the two cursors).
The measurements performed and the displayed cursors are linked to the
selected reference trace (see §. Reference Measurement).
•
The " " symbol indicates that the manual measurements (dt, dv) are active.
•
the measurement cursors can be moved directly with the stylus.
They can also be moved with the stylus by selecting the 1 (cursor 1)
or 2 (cursor 2) in the bargraph.
•
If the free cursor option is not active (see §. "Unattached Cursors"
Measurement), the cursors will remain linked to the reference trace during
movements. If the option is active, the cursors can be moved
anywhere on the screen.
•
The dt and dv measurements in relation to the selected reference
are indicated in the measurement display status area.
Example: (1)dt = 500.0 µs, dv = 1.000 V
Manual phase
measurement
Phase measurements using 3 cursors:
- Use cursors 1 and 2 to indicate the period of the reference signal.
-
Use the
ϕ
cursor to measure the phase.
•
The " " symbol indicates that manual phase measurement is active.
•
When this menu is active, the 3 cursors are present if at least one
signal is active.
•
The cursor marked
ϕ
can be moved freely, even if the "Unattached
cursors" menu is not active.
•
The phase measurement (in °) between the cursors is indicated in the
measurement display status area.
Example: (1)Ph = 120.0 °