Agilent Technologies 6631B - Manual (Page 47)

Language Dictionary - 4
47
Measurement Commands
Measurement commands consist of 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 defined number of samples and sample interval, storing
the results in a buffer, and calculating the measured result. Two types of measurement commands are
available: MEASure and FETCh. MEASure triggers the acquisition of new data before returning the
reading; FETCh returns a reading computed from previously acquired data. If you take a voltage
measurement, you can fetch only voltage 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 , and the data
acquisition sequence.
MEASure:ARRay:CURRent?
FETCh:ARRay:CURRent?
Agilent 66312A, 66332A Only
These queries return an array containing the instantaneous output current in amperes. The output voltage
or output current are digitized whenever a measure command is given or whenever an acquire trigger
occurs. The time interval is set by SENSe:SWEep:TINTerval. The position of the trigger relative to the
beginning of the data buffer is determined by SENSe:SWEep:OFFSet. The number of points returned is
set by SENSe:SWEep:POINts.
Query Syntax MEASure:ARRay:CURRent[:DC]?
FETCh:ARRay:CURRent[:DC]?
Parameters None
Examples MEAS:ARR:CURR? FETC:ARR:CURR?
Returned Parameters <NR3>
Related Commands SENS:SWE:TINT SENS:SWE:OFFS SENS:SWE:POIN
MEASure:ARRay:VOLTage?
FETCh:ARRay:VOLTage?
Agilent 66312A, 66332A Only
These queries return an array containing the instantaneous output voltage in volts. The output voltage or
output current are digitized whenever a measure command is given or whenever an acquire trigger
occurs. The time interval is set by SENSe:SWEep:TINTerval. The position of the trigger relative to the
beginning of the data buffer is determined by SENSe:SWEep:OFFSet. The number of points returned is
set by SENSe:SWEep:POINts.
Query Syntax MEASure:ARRay:VOLTage[:DC]?
FETCh:ARRay:VOLTage[:DC]?
Parameters None
Examples MEAS:ARR:VOLT? FETC:ARR:VOLT?
Returned Parameters <NR3>
Related Commands SENS:SWE:TINT SENS:SWE:OFFS SENS:SWE:POIN