Agilent Technologies Infiniium 90000 Q-Series, Programmer'S Manual

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594 Agilent Infiniium 90000 Series Oscilloscopes Programmer's Reference
25
Measure Commands
:MEASure:NWIDth
Command
:MEASure:NWIDth [<source>]
The :MEASure:NWIDth command measures the width of the first negative
pulse on the screen using the mid- threshold levels of the waveform (50%
levels with standard threshold selected). Sources are specified with the
:MEASure:SOURce command or with the optional parameter following the
:MEASure:NWIDth command.
The algorithm is:
If the first edge on the screen is rising,
then
nwidth = time at the second rising edge - time at the first
falling edge
else
nwidth = time at the first rising edge - time at the first
falling edge
<source> {CHANnel<N> | FUNCtion<F> | DIGital<M> | WMEMory<N> | CLOCk |
MTRend | MSPectrum | EQUalized}
MTRend and MSPectrum sources are only available if the oscilloscope has
the EZJIT option installed and the feature is enabled.
The CLOCk source is only available if the oscilloscope has the High Speed
Serial option installed and the feature is enabled.
The EQUalized source is only available if the oscilloscope has the High
Speed Serial option and the Serial Data Equalization option installed and
the features are enabled. This command uses the Feed- Forward Equalized
(FFE) signal as the source.
<N> CHANnel<N> is an integer, 1- 4.
WMEMory<N> is an integer, 1- 4.
<F> FUNCtion<F> is an integer, 1- 16.
<M>
An integer, 0- 15. Digital channels are available on mixed- signal
oscilloscopes.
Example
This example measures the width of the first negative pulse on the screen.
myScope.WriteString ":MEASure:NWIDth CHANnel1"
Query
:MEASure:NWIDth? [<source>]
The :MEASure:NWIDth? query returns the measured width of the first
negative pulse of the specified source.
Returned Format
[:MEASure:NWIDth] <value>[,<result_state>]<NL>