Pulse Width Measurements - Kenwood CS-5130 Instruction Manual

[EXAMPLE]
Reference signal Comparison signal
Horizontal distance between 2 signals
Fig. 26
(2) Cursor measurement (CS-5130 only)
Measured value
fale eae
Sat soe a a a
SG coos
A REF cursor
Fig. 27
7. PULSE WIDTH MEASUREMENTS
(1) Ordinary measurement
Pulse width can be measured as follows:
Procedure:
1. Apply the pulse signal to the INPUT jack. Set the verti-
cal MODE switch to the channel to be used.
2. Use the VOLTS/DIV, VARIABLE and + POSITION to ad-
just the waveform such that the pulse is easily observed
and such that the center pulse width coincides with the
center horizontal line on the CRT screen.
3. Set the SWEEP VARIABLE switch to CAL. Measure the
horizontal distance between the intersections of the pulse
waveform and CRT center horizontal line in divisions, and
multiply the measured distance by the value indicated
by SWEEP TIME/DIV. If the '' x 1OMAG"' mode is being
used, also multiply the product by 1/10.
Using the formula:
Pulse width = Horizontal distance (div) x (SWEEP TIME/DIV
setting) x ''xMAG 10''value~1 (1/10)
Adjust to the vertical scale
with <> POSITION
Align thew aveform
with the cemter using
Pulse length
* POSITION
(at 50%)
Fig. 28
[EXAMPLE]
For the example, the distance (width) at the ceiter horizon-
tal line is 4.6 divisions and the SWEEP TIMI/DIV is 0.2
(ms/div). (See Fig. 28)
Substituting the given value:
Pulse width =4.6 (div) x 0.2 (ms/div) =0.92 ns
25