Operating the Power System 4
Keysight N6700 User’s Guide 81
Time interval values from 10.24 up to 20.48 microseconds are rounded
to the nearest 10.24-microsecond increment. Values above 20.48
microseconds are rounded to the nearest 20.48-microsecond increment
when the resolution is set to RES20. Values above 20.48 microseconds
are rounded to the nearest 40.96-microsecond increment when the
resolution is set to RES40.
You can change the time interval resolution as follows:
Not Available
To set the resolution to 20 microseconds:
SENS:SWE:TINT:RES RES20, (@1)
To set the resolution to 40 microseconds:
SENS:SWE:TINT:RES RES40, (@1)
Specify a Window Function
Windowing is a signal conditioning process that reduces the error in
average measurements made in the presence of periodic signals and
noise. Two window functions are available: Rectangular and Hanning. At
power-on, the measurement window is Rectangular.
The Rectangular window calculates average measurements without any
signal conditioning. However, in the presence of periodic signals such
AC line ripple, a Rectangular window can introduce errors when
calculating average measurements. This can occur when a non-integral
number of cycles of data has been acquired due to the last partial cycle
of acquired data.
One way of dealing with AC line ripple is to use a Hanning window. The
Hanning window applies a cos
4
weighting function to the data when
calculating average measurements. This attenuates the AC noise in the
measurement window. The best attenuation is achieved when at least
three or more waveform cycles are in the measurement.
Select
.
Then select either Rectangular
or Hanning and press Select.
To set the sense window to
Hanning for output 1 use:
Send the Measurement Command
The following commands trigger and return measurement data.:
Select the Meter key. Front
panel meters can only measure
average voltage and current.
To measure average voltage &
current:
MEAS:VOLT?(@1)
MEAS:CURR?(@1)
To measure RMS voltage & current:
MEAS:VOLT:ACDC?(@1)