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SCPI Commands for the Counter
3–98
VX4101A MultiPaq Instrument User Manual
MEASure[1|2]([:SCALar]|:ARRay):TINTerval?
Sets the Counter to make a time interval measurement and fetch the result. This
measurement is made between input channels 1 and 2. The MEASure suffix
selects the input channel for the beginning of the interval, the end of the interval
will be from the remaining channel. The measurement is made from the first
detected rising edge on the first channel to the first following rising edge on the
second channel. If the <expected value> argument is used, the expected period of
the input signal should be used, not the expected time interval.
This command will modify the following:
function - set to TINT
aperture - described below
aperture/events mode - set to APERture
If autosetup mode is ON or ONCE, the input channel attenuation, offset, gain,
level and slope can be modified
If neither of the optional arguments are used:
aperture is set to the default value
If only the <expected value> argument is used:
aperture is set to the default value
If both <expected value> and <resolution> are used the aperture is calculated as
follows:
aperture + 10
(–9)logtexpectedu–logtresolutionu)
with a minimum of 1e–8 and a maximum of 5 seconds. A longer aperture may
be set with the SENSe:TINTerval:APERture command.
MEASure[1|2|11|12|21|22]([:SCALar]|:ARRay):TINTerval:DELay[:TIME|EVENts]?
[<array size>[,<delay time>|<delay events>[,<expected value>[,<resolution>]]]]
This query performs a time interval measurement where the second channel is
ignored for a specified period of time (delay by time) or for a specified number
of second channel events (delay by events). If neither time or events are
specified, the delay remains unchanged. Selecting 1 or 12 will perform a time
interval measurement with delay from channel one to channel two. Selecting 2 or
21 will perform a time interval measurement with delay from channel two to
channel one. Selecting 11 will perform a time interval with delay measurement
from channel one to itself. Likewise, selecting 22 will perform a time interval
with delay measurement from channel two to itself.