8.
Use the
control knob to set
cursor 1 at the first falling edge of the pulse
This
value is the negative duty ratio.
See the figure below.
Measure the phase difference that occurs when a sine
signal passes through the circuit. Connect CH1 to the
input signal of the circuit and connect CH2 to the
output signal of the circuit. To make testing easier,
CH1 and CH2 displacements are set in the centre
point, as shown in Figure 3-8. Follow the steps below :
1.
P r e s s [
]
t o
d i s p l a y
t h e
c u r s o r
measurement menu.
2.
Press [
] to activate the cursor measurement
function.
3.
Press [
] again to set cursor type to time
4.
Press [
] to set the vertical cursor unit to Degree
5.
Turn the
control knob to set
cursor 1 at the center point of the first sine
rising edge
where is crosses with channel
ground line
.
.
.
(
) .
MULTIPURPOSE
MULTIPURPOSE
△
III. Measuring the phase difference between two
signals
C U R S O R
F1
F1
F3
88
UTD4000 Four-channel User Manual
Figure 3-7
Using the cursors to test pulse
negative duty ratio
