Table of Contents
Advertisement
Fig. 2 6
2. MEASUREMENT OF VOLTAGE BETWEEN
TWO POINTS ON A WAVEFORM
(1) Normal Procedures
The following describes normal procedures for meas-
uring voltage between t w o points on a waveform or
peak-to-peak voltage:
1)
Apply the signal to be measured to the INPUT con-
nector. Select the channel to be used with the V E R -
T I C A L M O D E , s e t the A C - D C s w i t c h to D C ,
deactivate the GND s w i t c h , and adjust controls for
normal s w e e p display. Then, adjust the V O L T S / D I V
and S W E E P T I M E / D I V to obtain proper waveform
display. S e t the S W E E P T I M E to the C A L condition.
2)
Align one point to be measured to a horizontal
graduation line with the • POSITION control and
bring another point within the display range of C R T .
3)
Adjust the
• POSITION to bring the latter to the
center vertical graduation line.
4)
Measure the vertical distance between the t w o
points. Multiply the distance measured above by
the V O L T S / DIV setting to gain voltage to be de-
termined. W h e n the 10:1 probe is used, also decu-
ple the voltage.
(f)
W h e n using P C - 3 1 or direct measurement.
Voltage between t w o points =
(Vertical distance in divisions)
x ( V O L T S / D I V setting)
©
W h e n using 10:1 probe
Voltage between t w o points =
(Vertical distance in divisions)
x ( V O L T S / D I V setting) x 1 0
M e a s u r e d v a l u e
C u r s o r
I R E F c u r s o r
A l i g n t o c e n t e r v e r t i c a l g r a d u a t i o n line w i t h
POSITION c o n t r o l
Fig. 2 7
[ E X A M P L E ]
In the example s h o w n in Fig. 2 7 , vertical distance
between t w o points to be measured is 4 . 5 divi-
sions. If V O L T S / D I V is 0 . 2 V/div and the 1 0 : 1
probe is used, the voltage to be determined is:
Voltage between t w o points =
4 . 5 ( d i v ) x 0 . 2 (V/div) x 10 = 9 . 0 V
(2) Cursor Measurement Procedures
1)
Display the w a v e f o r m to be measured according
to item 1) of the normal procedures above.
2)
Select a desired cursor mode of AVI to AV4 a c -
cording to a channel to be used.
3)
Align the AREF cursor to the lower point to be
measured. Align the ^ c u r s o r to the upper point.
4)
Measured value is displayed following the select-
ed cursor mode display of AW\ to AW4.
i C u r s o r
Fig. 2 8
T w o p o i n t s t o b e m e a s u r e d
A l i g n t o h o r i z o n t a l g r a d u a t i o n line w i t h
* POSITION
M e a s u r e d v a l u e
i R E F c u r s o r
27
Advertisement
Table of Contents
