Section 4: Pulse card concepts
Model 4200A-SCS Pulse Card (PGU and PMU) User's Manual
4-28
4200A-PMU-900-01 Rev. A December 2020
The number of samples taken on the amplitude and base level is dependent on the size of the
portions to be sampled and the sampling rate. Use the
pulse_sample_rate
function to set the
sampling rate for pulse measurements.
Figure 99: Spot mean measurements example
Waveform measurement timing
The waveform measurement type samples the pulse as shown in
4-25). Sampling is performed on the entire duration (100%) of the pulse. This includes the rise time,
amplitude, and fall time portions of the pulse. A voltage and/or current reading is returned for every
sample.
A waveform measurement can include pre-data and post-data. Pre-data is extra data taken before
the rise time of the pulse; post-data is extra data taken after the fall time.
(on page 4-25) shows an example where 10% (0.1) pre-data and 10% (0.1) post-data is taken.
The number of samples taken on the pulse is dependent on the size of the pulse to be sampled and
the sampling rate. Use the
pulse_sample_rate
function to set the sampling rate for pulse
measurements.
In the function, a percentage must be expressed as its decimal equivalent. For example, specify 50%
as 0.5 in the function.
