MR8740T_user_manual_eng_20191016H.pdf - 第112页
107 T riggering the Instrument Using Analog Signals (Analog T rigger) 1. [Level] trigger When an input signal crosses the specied level in the positive or negative direction, an analog trigger is generated. Level Input …
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Triggering the Instrument Using Analog Signals (Analog Trigger)
5.6 Triggering the Instrument Using Analog Signals
(Analog Trigger)
This section explains how to congure the analog trigger settings and types of the analog triggers.
> [Trigger] > [Source]
1
1
Click a trigger source you want to specify.
The setting dialog box appears.
3
4
2
2
Click the [Channel] box, and then from the list, choose a channel you want to set a trigger
condition for.
3
Click the [Type] box, and then choose a trigger type from the list.
Off
, Level, In, Out, Voltage drop, Period-in, Period-out, Glitch
4
Congure each trigger-type-specic setting.
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Triggering the Instrument Using Analog Signals (Analog Trigger)
1. [Level] trigger
When an input signal crosses the specied level in the positive or negative direction, an analog
trigger is generated.
Level
Input waveform
Slope: [
] [ ]
Setting Description
Level –f.s. to +f.s.
Default: 0
Allows you to enter a level of the level trigger.
Slope With OR
The level-trigger condition is satised when a waveform crosses
the threshold value (level) in the positive direction.
The level-trigger condition is satised when a waveform crosses
the threshold value (level) in the negative direction.
With AND HIGH
The level-trigger condition is satised when a waveform is higher
than the threshold value (level).
LOW The level-trigger condition is satised when a waveform is lower
than the threshold value (level).
Event With OR 1
to 4,000 Allows you to enter the number of events.
The instrument counts the number of times the level-trigger
condition is satised. An analog trigger is generated when the
count reaches the specied number of events.
With AND Not available
Filter Off
, 10 to 10,000 Allows you to enter a lter width in the number of samples. Only
after the level-trigger condition is continuously satised during
the specied period, an analog trigger is generated. Specifying
this option prevents the instrument from being unintentionally
triggered due to noise.
With the [Filter] setting
Specifying the lter duration prevents the analog trigger from being unintentionally generated due
to noise, allowing it to be generated only after the level-trigger condition continues to be satised
during the specied duration (period) or longer.
Filter
Level at time
Noise does not generate any analog trigger.
5
Conguring the Trigger Settings
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Triggering the Instrument Using Analog Signals (Analog Trigger)
With the [Event] setting
If the trigger condition is repeatedly satised, setting the number of events prevents an analog
trigger from being generated until the number of times the level-trigger condition is satised reaches
the specied number of counts.
1 2 3 4
Example: When the number of events is set at [4] (Slope: [
]).
Level 2.5 V
5 V
0 V
Event count