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5522A
Operators Manual
Response:
Example:
Returns 1.44 mV as the value of the applied dc offset. If +0.00000E+00 is returned, the
dc offset is zero.
DPF
(Displacement Power Factor command) Sets the displacement power factor (phase
angle) between the Calibrator front panel terminals NORMAL and AUX (for sine waves
output only). The NORMAL terminal output is the phase reference. The phase offset is
expressed as the cosine of the phase offset (0.000 to 1.000) and a LEAD (default) or LAG
term, which determines whether the AUX output leads or lags the NORMAL output.
Parameters: <value>,LEAD
Example:
Set the current output on the Calibrator AUX terminals to lead the voltage output on the
NORMAL terminals by 82.93 degrees. (Cosine of 82.93 degrees is 0.123, nominal.)
DPF?
(Displacement Power Factor query) Returns the displacement power factor (cosine of the
phase angle) between the Calibrator front panel NORMAL and AUX terminals for sine
wave outputs.
Responses:
Example:
Returns a leading power factor of .5 when the current output on the Calibrator AUX
terminals leads the voltage output on the NORMAL terminals by 60 degrees. (Cosine of
60 degrees is 0.5.) The return is 0 if power factor does not apply to the output.
DUTY
(Duty Cycle command) Sets the duty cycle of the square wave output. The duty cycle is
the percentage of time the waveform is in the positive part of its cycle (1.00 to 99.00
percent). Duty cycle applies only to single-output square waves.
Parameter:
Example:
Set the square wave duty cycle to 12.34 %.
DUTY?
(Duty Cycle query) Returns the value of the square wave output duty cycle (1.00 to
99.00).
Response:
Example:
Returns 12.34 % for the value of the square wave duty cycle.
6-14
<value> signed offset amplitude
DC_OFFSET?
x
x
IEEE-488
RS-232
<value>,LAG
DPF .123,LEAD
x
x
IEEE-488
RS-232
<value>,LEAD
<value>,LAG
DPF? returns 5.00E-01,LEAD
x
x
IEEE-488
RS-232
<value> of duty cycle with optional PCT (percent) unit
DUTY 12.34 PCT
x
x
IEEE-488
RS-232
<value> of duty cycle in percent
DUTY? returns 1.234E+01
returns +1.44E-03
x
x
Sequential
Overlapped
x
x
Sequential
Overlapped
x
x
Sequential
x
x
Sequential
x
Coupled
x
Coupled
x
Overlapped
Coupled
x
Overlapped
Coupled
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