6.3
Command Descriptions
APS-1102 Programmable AC/DC Power Source
6-26
MEASure[:SCALar]:CURRent:HARMonic[:AMPLitude]?
This returns the harmonic current in Arms units within the specified harmonic order range. The
harmonic current measurement full scale is 15.00 Arms. If the measured value exceeds the full
scale, 99.99 Arms is returned as a measurement error.
However, when in AC-INT mode, if the frequency is neither 50 Hz nor 60 Hz, the harmonic
current cannot be measured. ([3, “Invalid in this mode”] or [6, “Invalid in this frequency”] error
occurs.)
Syntax:
MEASure[:SCALar]:CURRent:HARMonic[:AMPLitude]?
<NR1>
Parameters:
1 (first to 10th), 2 (11th to 20th), 3 (21st to 30th), and 4 (31st to 40th)
Query example:
MEAS:CURR:HARM? 1
Response format:
<NR2>
Response example:
2.24, 0.02, 0.01, 0.15, 0.06, 0.08, 0.01, 0.01, 0.02, 0.06
MEASure[:SCALar]:CURRent:HARMonic:RATio?
This returns the ratio (%) of the nth harmonic current to the fundamental wave current as 100%.
The measurement range is 0.0 to 500.0%. When the measured value exceeds the measurement
range, 999% is returned as a measurement error.
However, when in AC-INT mode, if the frequency is neither 50 Hz nor 60 Hz, the harmonic
current cannot be measured. ([3, “Invalid in this mode”] or [6, “Invalid in this frequency”] error
occurs.)
Syntax:
MEASure[:SCALar]:CURRent:HARMonic:RATio? <NR1>
Parameters:
1 (first to 10th), 2 (11th to 20th), 3 (21st to 30th), and 4 (31st to 40th)
Query
example:
MEAS:CURR:HARM:RAT?
1
Response format:
<NR2>
Response example:
100.0, 0.1, 0.1, 0.1, 0.1, 0.1, 0.1, 0.1, 0.1, 0.1
MEASure[:SCALar]:FREQuency?
This returns the external sync signal frequency in Hz units. The external sync signal frequency
measurement range is 38.0 to 525.0 Hz. If the measured value exceeds the full scale, 999.9 Hz is
returned as a measurement error.
The frequency measurement can only be performed in external synchronization mode (AC-SYNC
or AC+DC-SYNC). ([3, “Invalid in this mode”] error occurs.)
Syntax:
MEASure[:SCALar]:FREQuency?
Parameters:
None
Query
example:
MEAS:FREQ?
Response format:
<NR2>
Response
example: 50.4