Programming Examples 5
Keysight Models 6811C, 6812C, and 6813C Programming Guide 251
Voltage and current measurements
The SCPI interface provides a number of MEASure and FETCh queries that return
various components of rms voltage and current. For example, to read the AC
component of the rms voltage or current, use:
MEASure:VOLTage:AC? or
MEASure:CURRent:AC?
To read the sum of AC and DC components of the rms voltage or current, use:
MEASure:VOLTage:ACDC? or
MEASure:CURRent:ACDC?
To measure the DC voltage or current components, use:
MEASure:VOLTage:DC? or
MEASure:CURRent:DC?
To measure the maximum current amplitude and the current crest factor, use:
MEASure:CURRent:AMPLitude:MAXimum?
MEASure:CURRent:CREStfactor?
Power measurements
The MEASure and FETCh queries can return real, apparent, and reactive power
measurements as well as DC power and power factor using the following
commands:
MEASure:POWer:AC:APParent?
measures the AC component of apparent
power in VA
MEASure:POWer:AC:REACtive?
measures the reactive power
MEASure:POWer:AC:REAL?
measures the in-phase component of power
in watts
MEASure:POWer:AC:PFACtor?
returns the output power factor
MEASure:POWer:AC:TOTal?
measures the total real power being sourced
MEASure:POWer:DC?
measures the DC component of power
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