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6 – Language Dictionary
Measurement Commands
Measurement commands consist of fetch, measure, and sense commands.
Measure commands measure the output voltage or current. Measurements are performed by digitizing
the instantaneous output voltage or current for a specified number of samples, storing the results in a
buffer, and calculating the measured result. Two types of measurement commands are available:
MEASure and FETCh. MEASure commands trigger the acquisition of new data before returning the
reading. Measurement overflows return a reading of 9.91E+37. FETCh commands return a reading
computed from previously acquired data. If you take a voltage measurement, you can fetch only voltage
data. If you take a current measurement, you can fetch only current data.
♦ Use MEASure when the measurement does not need to be synchronized with any other event.
♦ Use FETCh when it is important that the measurement be synchronized with either a trigger or with a
particular part of the output waveform.
Sense commands control the current measurement range, the bandwidth detector of the dc source, and
the data acquisition sequence.
FETCh:ARRay:CURRent?
FETCh:ARRay:VOLTage?
These queries return an array containing either the digitized output current in amperes or output voltage
in volts. The data returned is the result of the last measurement command or acquisition trigger. The data
is valid until the next *RST, MEASure, or INITiate command occurs.
Query Syntax FETCh:ARRay:CURRent[:DC]? (@<channel list>)
Parameters None
Examples FETC:ARR:CURR? (@1)
Returned Parameters <NR3> [,<NR3>]
Related Commands SENS:SWE:TINT SENS:SWE:OFFS
FETCh:CURRent?
FETCh:VOLTage?
These queries return either the dc output current in amperes or output voltage in volts. The data returned
is the result of the last measurement command or acquisition trigger. The data is valid until the next
*RST, MEASure, or INITiate command occurs.
Query Syntax MEASure[:SCALar]:CURRent[:DC]? (@<channel list>)
Parameters None
Examples MEAS:CURR? (@1)
Returned Parameters <NR3> [,<NR3>]
Related Commands MEAS:VOLT?
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FETCh:ARRay:VOLTage[:DC]? (@<channel list>)
FETCh[:SCALar]:CURRent[:DC]? (@<channel list>)
MEAS:CURR?
FETC:ARR:VOLT? (@1)
SENS:SWE:POIN
FETC:CURR:DC? (@1)
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