LeCroy 9450 - Page 46

Turn
ON
EXPAND
B
with
CHI as
the source.
Adjust
TIME
MAGNIFIER
to .1
psec/div.
Turn
the
horizontal
POSITION
on
DISPLAY
CONTROL
to
select
the
13th
period.
Overlay
the
2
expanded
traces
on the
lower
grid
using
vertical
and
horizontal
POSITION
knobs
on
DISPLAY
CONTROL,
see
Figure
6.
26-Apr
-89
16:28:4-2
Main
Menu
Dual
Zoom
OFF
LeCrcv
X
Chan 1
.
1
ps
.6
V
X
Chan 1
,1
ps
.5
V
Figure
6:
3rd
and
13th
period
overlaid
Measurement
of
the
time
difference:
-
turn
the
RELATIVE
TIME CURSORS
ON
- put
the
REFERENCE
cursor
on
top
of
the
3rd
period
(check
on
upper
grid)
-
Put
the
DIFFERENCE
cursor
on
top
of
the
13th
period
(check
on
upper
grid)
and
adjust
alignment
of
the
two
cursors
(check
on
lower
grid),
see
Figure
7.
21