-SCS Pulse Card (PGU and PMU) User's Manual Section 3:
Setting up PMUs and PGUs in Clarius
4200A-PMU-900-01 Rev. B March 2023 3-17
For pulse I-V, spot mean measurements are made on pulse amplitude and base level. You can
measure voltage and current. The following figure shows the measure windows for spot mean
measurements. The start measure and stop measure points for ITMs are fixed at 75 percent and 90
percent for both amplitude and base level.
Figure 42: Pulse I-V (spot mean measurements)
The number of measurement samples that are made is relative to the widths of the magnitude and
base level. For example, if the width of the magnitude is 1 μs, the measure window is 750 ns to
900 ns. If the width of the base level is 2 μs, the measure window is 1500 ns to 1800 ns.
For waveform capture, measurement samples are acquired on pulse rise, pulse amplitude, pulse fall,
and a small portion before the rise (pre-data) and after the fall (post-data) on the base level, as shown
in the following figure.
Figure 43: Waveform capture
For detail on spot mean measurements, refer to Spot mean measurements (on page 4-26). For user
test module (UTM) programming, refer to the pulse_meas_sm function.
For detail on waveform measurements, refer to Waveform measurements (on page 4-27). For UTM
programming, the pulse_meas_wfm function is used to configure waveform measurements.
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