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5. TIME M E A S U R E M E N T S
(1) Ordinary measurement
Time between t w o points on a w a v e can be measured from
the S W E E T T I M E / D I V value and horizontal distance bet-
ween t w o points.
Procedure:
1 . Apply the signal to be measured to the INPUT jack. Set
the vertical MODE to the channel to be used. Set the
A C - G N D - D C to D C , adjusting V O L T S / D I V and S W E E P
TIME/DIV for a normal display. Set the V A R I A B L E con-
trol to C A L position.
2.
•
POSITION control to set this point at the intersec-
tion of any vertical graduation line. Using the • POSI-
TION control, set one of the points to be used as a
reference to coincide with the horizontal centerline.
3. Measure the
horizontal
points.
Multiply this by the setting of the S W E E P TIME/DIV con-
trol to obtain the time between the t w o points. If
horizontal " x 10 M A G " is used, multiply this further by
1/10.
Using the formula:
Time = Horizontal distance (div) x ( S W E E P TIME/DIV set-
t i n g ) x " x 1 0 M A G " v a l u e
Adjust to the vertical
scale with -« •
POSITION
Horizontal distance
between 2 signals
Fig. 19
[EXAMPLE]
For the example, the horizontal distance between the t w o
points is 5.4 divisions.
If the S W E E P T I M E / D I V is 0 . 2 ms/div w e calculate. (See
Fig. 19)
Substituting the given value:
Time = 5 . 4 (div) x 0 . 2 (ms/div) = 1.08 ms
distance between the
1
( 1 / 1 0 )
Adjust to horizontal
center line with
T POSITION
(2) Cursor measurement
1. In the same w a y as the ordinary measurement, adjust
the waveform to be measured to an easy-to-observe
point.
2. Set the cursor mode to A T .
3 . Adjust the A R E F cursor to the left of the t w o point
to be measured, and the A cursor to the right.
4 . Measured value is displayed in the upper right part on
the screen posterior to A T .
t w o
REF cursor
6 . TIME DIFFERENCE MEASUREMENTS
(1) Ordinary measurement
Time difference between t w o synchronized signals can be
measured as follows:
Procedure:
1 . Apply the t w o signals to C H 1 and C H 2 INPUT j a c k s .
Setting the vertical MODE to either A L T or CHOP mode.
Generally for low frequency signals CHOP is chosen
with A L T used for high frequency signals.
2. Select the faster of the t w o signals as the S O U R C E and
use the V O L T S / D I V and S W E E P TIME/DIV to obtain an
easily observed display.
Set the V A R I A B L E control to C A L position.
3. Using the • POSITION control set the waveforms to the
center of the C R T display and use the
control to set the reference signal to be coincident with
a vertical graduation line.
4 . Measure the
signals and multiply this distance in divisions by the
S W E E P T I M E / D I V setting.
If " x 10 M A G " is being used multiply this again by
1/10.
Using the formula:
Time = Horizontal distance (div) x ( S W E E P TIME/DIV
setting) x " x 10 M A G " value"
Measured value.
cursor
Fig. 20
horizontal
distance
between the
1
( 1 / 1 0 )
POSITION
t w o
21
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