Iwatsu DS-8814, Operation Manual

Page: 79 / 141

60
Automatic measurement (MEASURE)
Measurement
area
Specifies the measurement area between H cursors. If no H cursors
are shown, the measurement area is the entire screen.
The H cursors are displayed by pressing the
∆
V/
∆
t/
∆
V&
∆
t/V at t/
OFF button and selecting
∆
t of cursor measurement. (Likewise, the
H cursors can also be displayed by selecting
∆
V&
∆
t measurement.)
In this example, the root mean square (Vrms) and average (Vmean)
of the CH1 waveform are measured.
While another menu is displayed during cursor operation, etc.,
selecting Measure as Status in the DISPLAY menu displays
measurement results of A and B at the bottom of the screen.
For automatic measurement items allowing measurement point
display (page 33), the measurement point position is indicated with a
+ mark while the automatic measurement value is being displayed.
However, the measurement point position is not indicated when the
reference waveform is displayed.
Measurement
point
display
In this example,
+
pulse width (
+
PW) and
−
pulse width (
−
PW) and
duty ratio (Duty) of CH1 waveform are measured.
Select
∆
t for cursor
measurement.
Cursor that can be
operated
The cursors are moved by
turning the FUNCTION knob.
The cursor to be operated is
selected by pressing the C1/C2/
TCK buttons.
← Measurement →
interval
H-C1cursor
H-C2cursor
The + mark is displayed
as the level of
measurement point
selected in the menu.
←
−
PW
→ ←
+
PW →
+
mark
←
←
In this example, the level of
measurement of A is indicated
with a + mark.