Table of Contents
Advertisement
5.3
Example 3: Capturing a Single Signal
It's quite easy to use Digital Oscilloscope to capture non-periodic signal, such as
a pulse and burr etc. But the common problem is how to set up a trigger if you
have no knowledge of the signal? For example, if the pulse is the logic signal of a
TTL level, the trigger level should be set to 2 volts and the trigger edge be set as
the rising edge trigger. With various functions supported by our Oscilloscope,
user can solve this problem by taking an easy approach. First to run your test
using auto trigger to find out the closest trigger level and trigger type, this helps
user to make few small adjustments to achieve a proper trigger level and mode.
Here is how we achieve this.
The operation steps are as follows:
►
Set the probe menu attenuation coefficient to 10X and that of the
switch in the probe to 10X.
Adjust the VOLTS/DIV and SEC/DIV knobs to set up a proper
vertical and horizontal ranges for the signal to be observed.
Press the Acquire button to display the Acquire menu.
Press the H1 button to display the Acquire Mode menu.
Press the F2 button to choose Peak detect.
Press the Trigger Menu button to display the Trigger menu.
Press the H1 button to display the Trigger Type menu.
Press the F1 to choose Single as the type.
Turn the M knob to choose Edge as the mode.
Press the H2 button to display the Source menu.
Press the F1 button to choose CH1 as the source.
Press the H3 button to display the Coupling menu; press the F2
button to choose DC as the Coupling.
Press the H4 button to choose
Rotate the TRIG LEVEL knob and adjust the trigger level to the
roughly 50% of the signal to be measured.
86
Page
(rising) as the Slope.
June 2017
Advertisement
Table of Contents
