User Manual

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10.8 Analog Trigger
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NOTE
Triggering occurs, since the system judges tha
t
the period deviates from the specified range.
Trigger leve
l
D
irection (slope :
)
Reference voltag
e
Signal cycl
e
Lower limit
1
Lower limit
2
Reference voltag
e
Since a trigger filter is not prepared for the period trigger, triggering may
mistakenly occur due to noise (see the figure below).
To prevent such an event, use an appropriate low-pass filter.
Triggering point of the period trigger
The system monitors the period of the signal that crosses the set reference
voltage. When the monitored period deviates from the set range, triggering
occurs. The trigger position is determined by the set period range and the
measurement signal period.
[ Signal with a period to be measured that is smaller than the lower limit of the
period trigger (trigger slope:
): ]
When the signal crosses the reference voltage at the set trigger slope before
the lower limit of the set period range appears on the screen, the intersection
is always defined as the triggering position.