RIGOL Chapter 5 To Trigger the Oscilloscope
DS1000Z User’s Guide
is first pushed out (First Input First Out, FIFO). When a trigger is found, the
pre-trigger buffer would contain the data acquired just before the trigger. If no
trigger is found, the oscilloscope will trigger forcefully. If forceful trigger is invalid, the
oscilloscope still displays waveform but the waveform is not stable; if forceful trigger
is valid, the oscilloscope displays stable waveform.
This trigger mode is applicable to low-repetitive-rate signals and unknown signal
levels. To display DC signals, you must use auto trigger mode.
Note: when the horizontal time base is set to 50 ms/div or greater, this trigger mode
allows the absence of trigger signal.
Normal:
Display waveform when the trigger condition is met; otherwise, the oscilloscope
holds the original waveform and waits for the next trigger.
In this mode, the oscilloscope fills the pre-trigger buffer first and then search for a
trigger while at the same time continues filling data. While searching for the trigger,
the oscilloscope overflows the pre-trigger buffer and the first data put into the buffer
is first pushed out (FIFO). When a trigger is found, the oscilloscope will fill the
post-trigger buffer and display the acquisition memory.
Use normal trigger mode for low-repetitive-rate signals or when auto trigger is not
required.
Note: in this mode, pressing FORCE can generate a trigger signal forcefully.
Single:
When this mode is selected, the backlight of SINGLE turns on. The oscilloscope
waits for a trigger and displays the waveform when the trigger condition is met and
then stops.
Note: in this mode, pressing FORCE can generate a trigger signal forcefully.
To Next Page
Loading...
Need help?
General
