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

Page: 602 / 1186

602 Agilent Infiniium 90000 Series Oscilloscopes Programmer's Reference
25
Measure Commands
:MEASure:PHASe
Command
:MEASure:PHASe [<source>[,<source>[,<direction>]]]
The :MEASure:PHASe command measures the phase in degrees between
two edges. If two sources are specified, the phase from the specified edge
of the first source to the specified edge of the second source is measured.
If one source is specified, the phase is always 0.0E0.00
°
.
<source>
{CHANnel<N> | FUNCtion<F> | 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.
<direction> {RISing | FALLing}
Specifies direction of edge to measure. When <direction> is specified, the
<source> parameter is required.
Using the <direction> parameter will set the "Measure All Edges" mode if it
is not currently set. You can use the :MEASure:JITTer:STATistics command
to turn the "Measure All Edges" mode off (or on again). See
":MEASure:JITTer:STATistics" on page 570.
Example
This example measures the phase between channel 1 and channel 2.
myScope.WriteString ":MEASure:PHASe CHANnel1,CHANnel2"
Query
:MEASure:PHASe? [<source>[,<source>[,<direction>]]]
The :MEASure:PHASe? query returns the measured phase angle value.
The necessary waveform edges must be present on the display. The query
will return 9.37 if the necessary edges are not displayed.
Returned Format
[:MEASure:PHASe] <value>[,result_state]<NL>