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Procedure:
Using the formula:
Freq=
period
1 cycle=40 us (5 ys/div x 8 div)
Fig. 38
[EXAMPLE]
A period of 40 ps is observed and measured. (See Fig. 38)
substituting the given Value:
Freq= 1/40 x 10-6] =2.5x 104=25 kHz
Using the formula:
# of cycles x ''x 10 MAG' value
Horizontal distance (div) x SWEEP TIME/DIV setting
Freq=
Count cycles between this portion
—
Fig. 39
[EXAMPLE]
For the example, within 7 divisions there are 10 cycles.
The SWEEP TIME/DIV is 5 us/div. (See Fig. 39)
Substituting the given value:
10
Freq = —_
7 (div) x 5 (us/div)
= 285.7 kHz
Cursor measurement (CS-5130 only)
2. Set the cursor mode to 1/AT.
4. Measured value is displayed in the upper pist on the
screen posterior to 1/AT.
29
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