Agilent Technologies InfiniiVision 3000 DSO-X 3054A Manuel de service Page 360

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360 Agilent InfiniiVision 3000 X-Series Oscilloscopes Programmer's Guide
19 :MEASure Commands
:MEASure:SDEViation
(see page 860)
Command Syntax
:MEASure:SDEViation [<source>]
<source> ::= {CHANnel<n> | FUNCtion | MATH | WMEMory<r>}
<n> ::= 1-2 or 1-4 (# of analog channels) in NR1 format
<r> ::= 1-2 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" on page 330
":MEASure:VRMS" on page 378
":MEASure:SOURce" on page 362
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).
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