Digital Storage Oscilloscope 29
pattern trigger can be expanded to incorporate delays similar to other triggers. Pattern
durations are evaluated using a timer. The timer starts on the last edge that makes the
pattern ―true‖. Potential triggers occur on the first edge that makes the pattern false,
provided that the time qualifier criterion has been met.SDS2000Xprovides 4 patterns:
logical AND, OR, NAND and NOR combination of the channels. Each channel can set
to low, high or invalid.
Interval Trigger
Trigger when the time difference between the neighboring rising or falling edges meets
the time limit condition (<, >, !=, =).
To set interval trigger:
1. Press the [TRIG MENU] button on the front panel to enter the TRIGGER system
function menu.
2. Press the Type softkey, then use the Universal Knob to select Interval and push
down the knob to confirm.
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