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Appendix C: Algorithms
C–14
TVS600 & TVS600A Command Reference
PositiveWidth is defined in Positive Width, following.
If Period = 0 or undefined then return an error.
PositiveDutyCycle =
PositiveWidth
Period
100%
Timing measurement. The distance (time) between MidRef (default = 50%)
amplitude points of a positive pulse.
If MCross1Polarity = ‘+’
then
PositiveWidth = (MCross2 – MCross1)
else
PositiveWidth = (MCross3 – MCross2)
Amplitude (voltage) measurement. Preshoot finds the first positive-going edge in
the waveform record (or gated area) and calculates value as follows:
Preshoot =
Low * Min
Amplitude
100%
This measurement ignores settings of the CALCulate:WMParameter:EDGE and
:SLOPE commands when locating the edge to measure.
Positive Width
Preshoot