Keysight Technologies N69100 Series, Руководство по эксплуатации и обслуживанию

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Amp-hour & Watt-hour measurement
Amp-hour and watt-hour measurements are made independently of other measurements.
The amp-hour and watt-hour measurements are created by accumulating full range current and
power measurements at approximately 200k samples/second. The accumulators can hold enough
data for at least 100,000 hours.
The approximate limit of accumulated charge is ±(900,000,000•IRATING) in Coulombs or ±
(250,000•IRATING) in Amp-hours.
The approximate limit of accumulated energy is ±(1,100,000,000•PRATING) in Joules or ±
(310,000•PRATING) in Watt-hours.
IRATING is the current rating of the unit. PRATING is the power rating of the unit.
To return Amp-hours and Watt-hours measurements:
Front Panel Menu Reference SCPI Command
Select Measure\AHWH .
Displays the accumulated Amp-hours and Watt-hours.
FETC:AHO?
FETC:WHO?
To reset the Amp-hours and Watt-hours measurements:
Front Panel Menu Reference SCPI Command
Select Measure\AHWH .
Select Reset to return the measurements to zero.
SENS:AHO:RES
SENS:WHO:RES
Additional Measurements
In addition to the average voltage, current, and power measurements, which are available from both
the front panel and via SCPI commands, the following measurements can also be returned. These can
only be measured using the corresponding SCPI command.
The following digitized measurement types are available. These can only be measured using the
corresponding SCPI command.
ACDC is a calculation that returns the total RMS measurement (AC + DC).
HIGH level is a calculation that generates a histogram of the waveform using 16 bins between the
maximum and minimum data points. The bin containing the most data points above the 50% point is
the high bin. The average of all the data points in the high bin is returned as the High level. If no high
bin contains more than 1.25% of the total number of acquired points, then the maximum data point is
returned.
LOW level is a calculation that generates a histogram of the waveform using 16 bins between the
maximum and minimum data points. The bin containing the most data points below the 50% point is
the low bin. The average of all the data points in the low bin is returned as the Low level. If no low bin
Keysight N69100 Series Operating and Service Guide 129
4 Using the DC Power System