Table of Contents
Advertisement
3 .
ELIMINATION O F U N D E S I R E D S I G N A L C O M -
P O N E N T S
The ADD feature can be conveniently used to cancel out
the effect of an undesired signal component which superim-
posed on the signal you w i s h to observe.
Procedure:
1. Apply the signal containing an undesired component to
the C H 1 INPUT jack and the undesired signal itself alone
to the C H 2 INPUT jack.
2. Set the vertical MODE s w i t c h to C H O P and S O U R C E
switch to C H 2 . Verity that C H 2 represents the unwanted
signal in reverse polarity. Reverse the polarity by setting
C H 2 INV as required.
3 . Set the vertical MODE to A D D , S O U R C E to V . MODE and
C H 2 V O L T S / D I V and V A R I A B L E so that the undesired
signal component is cancelled a s much as possible. T h e
remaining signal should be the signal you wish to observe
alone and free of the unwanted signal.
Signal containing undesired component
(Broken lines: undesired component envelope)
Undesired component signal
Fig. 21
Signal without undesired component
Fig. 2 2
4 . V O L T A G E R A T I O M E A S U R E M E N T U S I N G
C U R S O R S
Overshoot of square w a v e s , etc. can be measured in the
following procedures:
1) Supply signal into the INPUT terminal. S e t the V . MODE
switch to the channel to be used, the A C - G N D - D C selec-
tor switch to D C . and each switch so that ordinary sweep
is displayed. Then adjust the V O L T S / D I V and S W E E P
T I M E / D I V for easy waveform observation.
2) Turn on the V E R T I C A L V A R I A B L E s w i t c h to adjust the
amplitude to 5 div points ( 0 % and 1 0 0 % ) on the screen
as necessity requires with the T POSITION s w i t c h e s .
N O T E : W h e n the S W E E P T I M E V A R I A B L E s w i t c h is set
to U N C A L , the unit is set to RATIO measurement
mode.
3) Set the cursor mode to 4 V 1 or AV2 in accordance with
the channel to be used.
4) Adjust the A R E F cursor to 1 0 0 % .
5) Adjust the A cursor to a point overshoot at w h i c h is to
be measured.
6) Overshoot voltage ratio with respect to the 5 div ( 1 0 0 % )
point is displayed in the upper right part on the screen.
REF
cursor
Fig. 2 3
cursor.
Measured value
2 3
Advertisement
Table of Contents
