Owon TAO3000 Dual-Channel Series, Руководство пользователя

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4.Advanced User Guidebook
29
The oscilloscope provides three trigger types: single trigger, logic trigger
and bus trigger. Each type of trigger has different sub menus.
Click to call up the menu panel, click Tig Menu, select the first menu
item in the bottom menu, select Single , Logic or Bus Trigger in the right
menu, choose different trigger types in the left menu.
Single trigger : Use a trigger level to capture stable waveforms in two
channels simultaneously.
Logic trigger : Trigger the signal according to the condition of logic
relationship.
Bus trigger : Set bus timing trigger.
The Single Trigger, Logic Trigger and Bus Trigger menus are
described respectively as follows:
Single Trigger
Single trigger has eight types: edge trigger, video trigger, pulse trigger, slope
trigger, runt trigger, windows trigger, timeout trigger and Nth edge trigger.
Edge Trigger : It occurs when the trigger input passes through a specified
voltage level with the specified slope.
Video Trigger : Trigger on fields or lines for standard video signal.
Pulse Trigger : Find pulses with certain widths.
Slope Trigger : The oscilloscope begins to trigger according to the signal rising
or falling speed.
Runt Trigger : Trigger pulses that pass through one trigger level but fail to
pass through the other trigger level.
Windows Trigger : Provide a high trigger level and low trigger level, the
oscilloscope triggers when the input signal passes through the
high trigger level or the low trigger level.
Timeout Trigger : The oscilloscope triggers when the time interval from when
the rising edge (or the falling edge) passes through the trigger
level to when the neighboring falling edge (or the rising edge)
passes through the trigger level is greater than the timeout time
set.
Nth Edge Trigger : The oscilloscope triggers on the Nth edge that appears on
the specified idle time.
The eight trigger modes in Single Trigger are described respectively as
follows: