User’s Manual of
OWON
Color Mixed Signal Digital Storage Oscilloscope
Example 3: Capture the Single Signal
The digital storage oscilloscope takes the lead in providing the convenience capturing
of such non-periodic signals as pulse and burr, etc. If you intent to capture a single
signal, you can not set the trigger level and the trigger edge unless you have particular
priori knowledge of this 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. If it is uncertain as to the signal, you can make an observation of it in
advance under the automatic or ordinary mode to determine the trigger level and the
trigger edge.
The operation steps are as follows:
1.
Set the probe menu attenuation coefficient to 10X and that of the switch in the
probe to 10X.
2.
Adjust the
VOLTS/DIV
and
SEC/DIV
knobs to set up a proper vertical and
horizontal ranges for the signal to be observed.
3.
Press the button
ACQUIRE
to display the
ACQUIRE Mode
menu.
4.
Press the
F2
menu selection button and choose
Peak Detect
.
5.
Press the
TRIG MENU
button to display the
Trigger Mode
menu.
6.
Press the
F1
menu selection button and choose
Single
as the type.
7.
Press the
F3
menu selection button and choose
Edge
as the mode.
8.
Press the
F4
menu selection button and choose
Rising
as the slope.
9.
Press the
F5
menu selection button to next menu.
10.
Press the
F2
menu selection button and choose
Single
as the trigger mode.
11.
Rotate the
LEVEL
knob and adjust the trigger level to the mid-value of the
signal to be measured.
12.
If the
Trigger State Indicator
at the top of the screen does not indicate
Ready
,
push down the
RUN/STOP
button and start
Acquire,
waiting the emergence of
the signal in conformity with the trigger conditions. If a signal reaches to the set
trigger level, one sampling will be made and then displayed in the screen. With
this function, any random occurrence can be captured easily. Taking the burst
burr of larger amplitude for example, set the trigger level to the value just greater
than the normal signal level, and then presses the
RUN/STOP
button and waits.
When there is a burr occurring, the instrument will trigger automatically and
record the wave form generated during the period around the trigger time. With
the
HORIZONTAL POSITION
knob in the horizontal control area in the panel
rotated, you can change the horizontal position of the trigger position to obtain
the negative delay, making an easy observation of the waveform before the burr
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