Micsig ATO1000 Series, Руководство пользователя

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Chapter 6 Trigger System
105
6.3 Pulse Width Trigger
The trigger happens when the trigger signal pulse width (8ns~10s, the trigger type indication icon at the top of the
screen is ) reaches the set condition and the signal voltage reaches the set trigger level. Pulse width trigger
menu is shown in the following table:
Trigger
Option
Setting
Description
Trigger Source
CH1
Set CH1 as trigger signal source
CH2
Set CH2 as trigger signal source
CH3 Set CH3 as trigger signal source
CH4 Set CH4 as trigger signal source
Polarity
Positive
Trigger on setting the positive pulse width of signals
Negative
Trigger on setting the negative pulse width of signals
Trigger
Condition
＜
T
Trigger when the signal pulse width is smaller than pulse width T
＞ T
Trigger when the signal pulse width is greater than pulse width T
＝
T
Trigger when the signal pulse width is equal to pulse width T
≠T
Trigger when the signal pulse width is not equal to pulse width T
Trigger Pulse
Width
8ns~10s Set the trigger pulse width
Note: The error of greater than, less than, equal to or not equal to the conditions is 6%.
Trigger steps of positive polarity pulse width: (CH1 as example)
1)
Tap “Trigger” on the main menu to open the trigger menu, select the pulse width trigger in the trigger type,
and set the pulse width trigger as follows, as shown in Figure 5-13:
⚫ Trigger source: CH1;
⚫
Trigger pulse polarity: positive;
⚫ Trigger level: 1V
⚫
Trigger condition and pulse width time: “greater than”, the adjustment time is 180us.