8-70 Command Reference
:MEASure «:FALL :TIME | :FTIM»?
[8 [<lower threshold> [,<upper threshold>[,<expected value>[,<resolution>]]]]
[,(@1|@2)]]
Fall Time
The transition time from 90% to 10% of the signal amplitude is measured.
The measurement is always a single measurement and the Auto-trigger is always
on, setting the trigger levels to 90% and 10 % of the amplitude. If you need an av
-
erage transition time measurement, or other trigger levels, use the :SENSe sub
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system and manually set trigger levels instead.
Parameters:
<lower threshold>, <upper threshold>, <expected value> and <resolution> are all ignored by
the counter
<(@1)> or <(@2)> is the measurement channel, i.e. input A or input B.
Complies with standards: SCPI 1991.0, confirmed.
:MEASure :TINTerval?
8 (@«1|2»),(@«1|2»)]
Time Interval
Traditional time-interval measurements are performed. The trigger levels are set
automatically, and positive slope is used. The first channel in the channel list is the
start channel, and the second is the stop channel.
Parameters:
The first (@«1|2|4») is the start channel and the second (@«1|2|4») is the stop channel
(@1) means input A
(@2) means input B
If you omit the channel, input A is the start channel, and input B is the stop chan
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nel.
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