Keysight P9241, Руководство программиста SCPI

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:MEASure Commands
21
Keysight P9241/42/43A Oscilloscopes SCPI Programmer's Guide 443
:MEASure:DELay
(see page 1196 )
Command Syntax
:MEASure:DELay [<edge_select_mode>][,][<source1>][,<source2>]
<edge_select_mode> ::= {MANual | AUTO}
<source1>, <source2> ::= {CHANnel<n> | FUNCtion<m> | MATH<m> | WMEMory<r
>}
<n> ::= 1 to (# analog channels) in NR1 format
<m> ::= 1 to (# math functions) in NR1 format
<r> ::= 1 to (# ref waveforms) in NR1 format
The :MEASure:DELay command places the instrument in the continuous
measurement mode and starts a delay measurement.
The measurement is taken as:
delay = t(<edge_spec_2>) - t(<edge_spec_1>)
where the <edge_spec> definitions are determined by the <edge_select_mode>
and the :MEASure:DELay:DEFine command.
When the <edge_select_mode> is:
• AUTO — edges are automatically selected: the source1 edge closest to the
timebase reference point is used, and the source2 edge closest to the source1
edge is used.
• MANual — edge numbers are determined by the :MEASure:DELay:DEFine
settings.
Edge numbers greater than zero (0) are counted from the left side of the display
for both sources.
Edge slopes are always determined by the :MEASure:DELay:DEFine settings.
If the <edge_select_mode> is not included with the command, AUTO is the default.
Query Syntax
:MEASure:DELay? [<edge_select_mode>][,][<source1>][,<source2>]
The :MEASure:DELay? query measures and returns the delay between source1 and
source2. Delay measurement slope and edge count parameters are determined by
the <edge_select_mode> and the :MEASure:DELay:DEFine command.
The <edge_select_mode> definitions are the same as with the command syntax.
However, if the <edge_select_mode> is not included with the query, MANual is the
default.
In the :MEASure:DEFine command, you can set upper, middle, and lower threshold
values. It is the middle threshold value that is used when performing the delay
query. The standard upper, middle, and lower measurement thresholds are 90%,