Measure:vrms - Rigol DS4000E Series Programming Manual

RIGOL

:MEASure:VRMS

Syntax 1
:MEASure:VRMS [<chan>]
Description 1
Measures the amplitude effective value (Vrms) of the specified source channel.
Syntax 2
:MEASure:VRMS? [<chan>]
Description 2
Measures and queries the amplitude effective value (Vrms) of the specified source channel. The unit is
related to the current amplitude unit of the specified source channel.
Parameter
Name Type
<chan> Discrete
Remarks
Amplitude effective value (Vrms): indicates the root mean square value of the waveform amplitude

within the current measurement range (refer to the :MEASure:AREA command).
Before making measurements, turn on the channels to be measured.

When the math operation type is FFT (refer to the :CALCulate:MODE command), <chan> cannot be

set to "MATH".
When [<chan>] is omitted, the command, by default, applies to the currently set measurement source

(refer to the :MEASure:SOURce command).
Return Format
The query returns the measurement results in scientific notation. When the measurement results are
invalid, the query returns 9.9e37.
:MEASure:VRMS:SAVerage
:MEASure:VRMS:SCURrent
:MEASure:VRMS:SDEViation
:MEASure:VRMS:SMAXimum
:MEASure:VRMS:SMINimum
Syntax 1
:MEASure:VRMS:SAVerage [<chan>]
:MEASure:VRMS:SCURrent [<chan>]
:MEASure:VRMS:SDEViation [<chan>]
:MEASure:VRMS:SMAXimum [<chan>]
:MEASure:VRMS:SMINimum [<chan>]
Description 1
Measures the amplitude effective value (Vrms) of the specified source channel and enables the statistic
function of the measurement results.
Syntax 2
:MEASure:VRMS:SAVerage? [<chan>]
:MEASure:VRMS:SCURrent? [<chan>]
:MEASure:VRMS:SDEViation? [<chan>]
:MEASure:VRMS:SMAXimum? [<chan>]
:MEASure:VRMS:SMINimum? [<chan>]
2-164
Range
{CHANnel1|CHANnel2|CHANnel3|CHANnel4|MATH}
Chapter 2 Command System
Default
--
DS4000E Programming Guide