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Keysight InfiniiVision M9241/42/43A PXIe Oscilloscopes SCPI Programmer's Guide
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:MEASure Commands
:MEASure:SDEViation
Command Syntax
:MEASure:SDEViation [<source>]
<source> ::= {CHANnel<n> | FUNCtion<m> | MATH<m> | WMEMory<r>}
<n> ::= 1-2 or 1-4 (# of analog channels) in NR1 format
<m> ::= 1 to (# math functions) in NR1 format
<r> ::= 1 to (# ref waveforms) in NR1 format
The :MEASure:SDEViation command installs a screen measurement and starts std
deviation measurement. If the optional source parameter is specified, the current
source is modified.
Query Syntax
:MEASure:SDEViation? [<source>]
The :MEASure:SDEViation? query measures and outputs the std deviation of the
selected waveform. The oscilloscope computes the std deviation on all displayed
data points.
Return Format
<value><NL>
<value> ::= calculated std deviation value in NR3 format
See Also
•
"Introduction to :MEASure Commands"
•
•
NOTE
This ":MEASure:VRMS DISPlay, AC" command is the preferred syntax for making standard
deviation measurements.
NOTE
This command is not available if the source is FFT (Fast Fourier Transform).