MR8740T_user_manual_eng_20191016H.pdf - 第106页

101 T rigger timing T rigger timing Recording [Start] Starts recording Starts recording when the instrument is triggered. Stops the recording When the mode is set to [Single] Stops the recording after the instrument has …

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Trigger timing
5.3 Trigger timing
> [Trigger] > [Common]
START
Starts recording when the instrument is triggered, and stops the recording after the
instrument has acquired the recording-length waveforms.
A displayed trigger point may lag behind the actual trigger point by some samples between one and
four when measuring modules include any one of the following modules: Model U8975 4ch Analog
Unit, Model MR8990 Digital Voltmeter, and Model U8991 Digital Voltmeter Unit.
101
Trigger timing
Trigger timing
Recording
[Start]
Starts recording
Starts recording when the instrument is triggered.
Stops the recording
When the mode is
set to [Single]
Stops the recording after the instrument has acquired the recording-length data.
When the mode is
set to [Repeat]
Starts recording, stops the recording after the instrument has acquired the
recording-length data, and then waits for a trigger.
When triggered again, starts recording, stops the recording after the instrument
has acquired the recording-length data, and then waits for a trigger (repeats this
sequence).
Example of trigger timing
When the trigger type is set to the level trigger; level, at 0.000 V; and slope, to positive [
]
Setting of [Timing]
[Start]
0 V
Records recording-length data.
The above processes are repeated when the trigger mode is set to [Repeat].
5
Conguring the Trigger Settings
102
Conguring the Pre-trigger settings
5.4 Conguring the Pre-trigger settings
Pre-trigger You can record not only
waveforms that appear after a
start trigger has been activated,
but also those that appear before
the trigger is activated.
Also records data before the start trigger.
Start
Specied pre-
trigger length
Recording length or
recording time
The pre-trigger is set in percent (%) of the recording length.
Setting all the trigger sources (analog, interval triggers, etc.) to [Off] disables pre-trigger setting.
> [Trigger] > [Common]
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