Ametek Lx Series II Programming Manual Manuale Utente Pagina 64

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Programming Manual Lx \ Ls Series II
60
Query Syntax MEASure[:SCALar]:VOLTage:ACDC?
FETCh[:SCALar]:VOLTage:ACDC?
Parameters None
Examples MEAS:VOLT:ACDC? FETC:VOLT:ACDC?
Returned Parameters <NR3>
Related Commands INST:NSEL
MEASure:VOLTage:HARMonic?
FETCh:VOLTage:HARMonic?
Phase Selectable
These queries return the rms amplitude of the Nth harmonic of output voltage. The parameter is
the desired harmonic number. Queries sent with a value of 0 return the dc component. A value of
1 returns the fundamental output frequency. Harmonic orders can be measured up to the
fundamental measurement bandwidth of the measurement system, which is 16 kHz. Thus, the
maximum harmonic that can be measured is dependent on the output frequency. Any harmonics
that represent frequencies greater than 16 kHz are returned as 0.
Query Syntax MEASure[:SCALar]:VOLTage:HARMonic[:AMPLitude]?<NRf>
FETCh[:SCALar]:VOLTage:HARMonic[:AMPLitude]?<NRf>
Parameters 0 to 50
Examples MEAS:VOLT:HARM? 3
FETC:VOLT:HARM? 1
Returned Parameters <NR3>
Related Commands INST:NSEL
MEASure:VOLTage:HARMonic:PHASe?
FETCh:VOLTage:HARMonic:PHASe?
Phase Selectable
These queries return the phase angle of the Nth harmonic of output voltage, referenced to the
positive zero crossing of the fundamental component. The parameter is the desired harmonic
number. Queries sent with a value of 0 return the dc component. A value of 1 returns the
fundamental output frequency. Harmonic orders can be measured up to the fundamental
measurement bandwidth of the measurement system, which is 16 kHz. Thus, the maximum
harmonic that can be measured is dependent on the output frequency. Any harmonics that
represent frequencies greater than 16 kHz are returned as 0.
Query Syntax MEASure[:SCALar]:VOLTage:HARMonic:PHASe?<NRf>
FETCh[:SCALar]:VOLTage:HARMonic:PHASe?<NRf>
Parameters 0 to 50
Examples MEAS:VOLT:HARM:PHAS? 3
FETC:VOLT:HARM:PHAS? 1
Returned Parameters <NR3>
Related Commands INST:NSEL
MEASure:VOLTage:HARMonic:THD?
FETCh:VOLTage:HARMonic:THD?
Phase Selectable
These queries return the percentage of total harmonic distortion and noise in the output voltage.
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