Tektronix DPO4000 Manuel d'utilisateur Page 223

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Commands Listed in Alphabetical Order
PPULSECount is
the count of positive pulses.
PWIdth (positive width) is the distance (time) between the middle reference
(default = 50%
) amplitude points of a positive pulse. The measurement is made
on the rst pulse in the waveform or gated region.
RISe timing
measurement nds the rise time of the waveform. The rise time is
the time it takes for the leading edge of the rst pulse encountered to rise from a
low reference value (default is 10%) to a high reference value (default is 90%).
This measurement is applicable only to the analog channels.
RMS amplitude measurement nds the true Root Mean Square voltage in the
entire waveform or gated region. This measurement is applicable only to the
analog channels.
Examples
MEASUREMENT:IMMED:TYPE FREQUENCY denes the immediate meas urement to
be a frequency measurement.
MEASUREMENT:IMMED:TYPE? might return :MEASUREMENT:IMMED:T YPe RMS
indicating that the immediate measurement is the true Root Mean Square voltage.
MEASUrement:IMMed:UNIts? (Query Only)
Returns the units of the immediate measurement:
VOLTS, VOLTS SQUARED, SEC, HERTZ, PERCENT, DIVS, SAMPLES,
OHMS, AMPS, WATTS, MINUTES, DEGREES, UNKNOWN, AMPS
SQUARED, HOURS, DAYS, DB, BYTES, INVERSE HERTZ, IRE, V OVER V,
V OVER A, VOLTS WATTS, V OVER W, VOLTS DB, V OVER DB, A OVER
V, A OVER A, AMPS WATTS, A OVER W, AMPS DB, A OVER DB, WATTS
VOLTS, W OVER V, WATTS AMPS, W OVER A, WATTS SQUARED, W
OVER W, WATTS DB, W OVER DB, DB VOLTS, DB OVER V, DB AMPS, DB
OVER A, DB WATTS, DB OVER W, DB SQUARED, DB OVER DB, VOLTS
SEC, AMPS SEC, WATTS SEC, V OVER S, A OVER S, W OVER S
Group
Measurement
Syntax
MEASUrement:IMMed:UNIts?
Examples
MEASUREMENT:IMMED:UNITS? might return
:MEASUREMENT:IMMED:UNIts "s"
indicating that units for the immediate measurement are in seconds.
MSO4000 and DPO4000 Series Programmer Manual 2-213
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