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(2) Cursor Measurement Procedures
1)
Display the waveform to be measured in an easy-to-
see position according to the normal procedures above.
2)
Select the A T cursor mode with the C U R S O R S .
3)
Align the A R E F cursor to the left of the t w o points to
be measured, and the Acursor to the right.
4)
Measured value is displayed following A T in the upper
right of the C R T .
i R E F c u r s o r
Fig. 35
7. PULSE WIDTH MEASUREMENT
(1) Normal Procedures
The following describes normal procedures for measuring
pulse width:
1)
Apply the pulse signal to the input connector. Select
the channel to be used with the V E R T I C A L MODE
s w i t c h .
2)
Adjust the V O L T S / D I V , V A R I A B L E , and T POSITION
controls so that an easy-to-see w a v e f o r m is displayed
as well a s the center horizontal graduation line on the
C R T is at the middle of the pulse amplitude.
3)
Set the S W E E P V A R I A B L E to the C A L position. Multi-
ply the horizontal distance by the S W E E P TIME/DIV set-
ting. Measure the distance between t w o points on the
pulse waveform which cross the center horizontal line.
Pulse width =. Horizontal distance (div)
x S W E E P T I M E / D I V setting
[EXAMPLE]
In the example s h o w n in Fig. 3 6 , the horizontal distance
of the center horizontal line segment crossing the pulse
waveform is 4 . 6 divisions. If the S W E E P T I M E / D I V set-
ting is 0 . 2 ms/div,
Pulse width = 4 . 6 (div) x 0 . 2 (ms/div)
= 0 . 9 2 m s
34
M e a s u r e d v a l u e
c u r s o r
A l i g n t o v e r t i c a l g r a d u a t i o n l i n e
w i t h * * •
P u l s e w i d t h
(at 5 0 %
p o i n t s )
(2) Cursor Measurement Procedures
1)
Display the w a v e f o r m to be measured in an easy-to-
see position according to the normal procedures above.
2)
Select the A T cursor mode with the C U R S O R S .
3)
Align the A R E F cursor to the left edge of the pulse to
be measured, and the Acursor to the right edge.
4)
Measured value is displayed following A T in the upper
right of the C R T .
R E F c u r s o r
Fig. 37
8. PULSE RISE TIME AND FALL TIME MEAS-
UREMENT
(1) Normal Procedures
The rise time and fall time are determined based on time
between the 1 0 % and 9 0 % amplitude points.
1)
Apply the signal to the input connector. Select the chan-
nel to be used with the V E R T I C A L MODE s w i t c h . A d -
just the w a v e f o r m peak-to-peak height to 5 divisions
w i t h the V O L T S / D I V and V A R I A B L E controls.
2)
Adjust each control for normal s w e e p display. Center
the waveform w i t h the
S W E E P T I M E / D I V to as fast point as possible. S e t the
S W E E P T I M E to C A L .
P O S I T I O N
B r i n g w a v e f o r m t o c e n t e r
w i t h •
P O S I T I O N
Fig. 36
M e a s u r e d v a l u e
l e u r s o r
POSITION control. S e t the
T
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