Rigol MSO/DS2000A Series Uživatelský manuál stáhnout pdf (Strana 104)

RIGOL Chapter 5 To Trigger the Oscilloscope

5-18 MSO2000A/DS2000A User’s Guide

Nth Edge Trigger (Option)

Trigger on the nth edge that appears after the specified idle time. For example, in the

waveform shown in the figure below, the instrument should trigger on the second

rising edge after the specified idle time (the time between two neighbouring rising

edges) and the idle time should be set to P<Idle Time<M. Wherein, M is the time

between the first rising edge and its previous rising edge and P is the maximum time

between the rising edges participate in the counting.

P<Idle Time

Edge Type=

Edge Num

Figure 5-5 Nth Edge Trigger

Trigger Type:

Press Type, rotate to select “Nth Edge” and press down . At this point, the

trigger setting information is displayed at the upper right corner of the screen. For

example,

. The trigger type is Nth edge trigger; the trigger source

is CH1; the trigger level is 1.94 V.

Source Selection:

Press Source and select CH1, CH2 or any channel of D0-D15. For the details, please

refer to the introduction in “

Trigger Source”. The current trigger source is displayed

at the upper right corner of the screen.

Note: Select channel with signal input as trigger source to obtain stable trigger.

Edge Type:

Press Slope to select the kind of edge of the input signal on which the oscilloscope

triggers.

 : trigger on the rising edge of the input signal when the voltage level meets

the specified trigger level.

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Rigol MSO/DS2000A Series Uživatelský manuál Strana 104