6100B/6105A
Users Manual
5-46
The query command will return 1 if the specified harmonic is being fluctuated, or 0 if the
specified harmonic is not being fluctuated.
SOURce:PHASe<x>:CURRent: FHARmonics:ALL?
This query allows all the active harmonics to return their Fluctuation State as a comma
delimited string. The comma separated string will contain a value for each harmonic.
Inactive harmonics will always cause 0 to be returned.
SOURce:PHASe<x>:CURRent: FHARmonics:MODulation <dnpd>,<dnpd>
This command sets the specified phase’s current channel fluctuating harmonics modulation
parameters. The first parameter is the modulation depth (expressed as a percentage of the
current waveform RMS amplitude). The second parameter is the required modulation
frequency (expressed in Hertz).
SOURce:PHASe<x>:CURRent:FHARmonics:MODulation? [<cpd>{DEPTh |
FREQuency}]
This query returns the modulation depth and frequency for the current channel of the
specified phase. Add the appropriate optional parameter to query just one of these values.
SOURce:PHASe<x>:CURRent:FHARmonics:SHAPe(?)
<cpd>{RECTangular|SINusoidal|SQUare}
This command selects the specified Phase’s Current channel fluctuating harmonics
modulation shape.
• RECT will set the modulation waveform to be rectangular.
• SIN will set the modulation waveform to be sinusoidal.
• SQU will set the modulation waveform to be square.
The query command will return SIN if the modulation shape is sinusoidal etc.
SOURce:PHASe<x>:CURRent:FHARmonics:DUTY(?) <dnpd>
This command sets the specified Phase’s Current channel fluctuating harmonics duty cycle
value for rectangular modulation.
The query command will return the present duty cycle value. The returned number will be
in standard scientific format (10.55 would be returned as 1.055E1).
5-71. Interharmonics Phenomenon
SOURce:PHASe<x>:CURRent:IHARmonics:STATe(?) <bool>{OFF|ON|0|1}
This command turns the specified phase’s current channel interharmonics phenomena on
and off.
• ON or 1 will enable interharmonics on this phase’s current channel.
• OFF or 0 will disable interharmonics on this phase’s current channel.
The query command will return 1 if the inter-harmonics are applied, or 0 if the inter-
harmonics are inactive.
SOURce:PHASe<x>:CURRent:IHARmonics:SIGNal<y>
<bool>{OFF|ON|0|1}[,<dnpd>,<dnpd>]
This command sets the specified interharmonics parameters. The <bool> parameter controls
whether the inter-harmonic is active or not. The two optional <dnpd> parameters are
numbers, which set the required amplitude (expressed in amps), and the required frequency
(expressed in Hertz). <y> specifies the interharmonic to be set since the instrument is
capable of producing 2 interharmonics simultaneously.
SOURce:PHASe<x>:CURRent:IHARmonic:SIGNal<y>? [<cpd>{STATe |