I
I
I
I
I
I
I
8. Time measurement can be made from
the
8 Sweep
display
in
the
conventional manner. The sweep rate
is
determined
by
the
setting
of
the
8 TIME/DIV switch.
The 8 DLY'D switch of
the
HORIZ DISPLAY may
be used,
as
well
as
the AL T switch, for time measure·
ments.
9. The apparent sweep magnification can be calculated
from
the
following formula:
Apparent Delayed
Sweep
Magnfication
A TIME/DIV switch setting
8 TIME/DIV switch setting
EXAMPLE: The
apparent
magnification
of
a display
with an A TIME/DIV switch setting
of
0.1
ms
and a 8
TIME/DIV switch setting of 1
p.s.
Substituting the given values:
Apparent 1 X
10-
4
Magnification
1
X
1
o-6
100
times
Triggered Delay Sweep Magnification
The delayed sweep magnification
method
just described
may produce excessive jitter
at
high
apparent
magnification
(A
!QO
. . . .
~
t-
INTENSIFIED ZONE
TO
BE
MAGNIFIED
~
'
"
"'
....
.
...
....
) A INTENSIFIED DISPLAY
1-
~
1-
/
v
10
v
....
....
'/
....
0
-
(B) B
DELAYED
DISPLAY
.........
...
~
~··
..
..
.
...
\
...
&I"\
V\
~
.
...
.
...
....
....
Figure
24.
Delayed
sweep
magnification.
.
...
....
2756-25
@
465B/DM44
Operators
57
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