Tektronix 2232 - Page 104

Measuring Signals
Figure 3-38: Measuring Rise Time
L
c
i?
iz
c
LT
r
r
LI
L'
LI
LI
LI:
LI
LI
r
LI
L'
LL
LZ
LZ1
LI
iz
C:
Lf
c
U
L'
U
L'
U
2232 User Manual 3-47
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Figure 3-39: Measuring Fall Time
Step 1 : Apply a signal to the oscilloscope.
Step 2: Set the trigger SLOPE out (positive) for a rise time measure-
ment and in (negative) for a fall time measurement.
Step 3: Adjust the vertical dimension for exactly 5 divisions (you may
have to use the
CAL variable.)
Step 4: Vertically position the signal so that the bottom of the signal on
the 0% graticule line and the top of the signal is on the 100% line.
Step 5: Magnify the rising edge of the signal horizontally so that the rise
time is spread over
4 or 5 divisions. (Refer to Displaying Magnified
Sweeps,
page 3-1 9.)
Step 6: Measure the rise time horizontally from the lo(%) graticule line
to the
go(%) graticule line.