Tektronix MDO3012, Руководство пользователя

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Analyze Waveform or Trace Data
Amplitude measurements
Measurement Description
Peak-to-peak The absolute difference between the maximum and minimum amplitude in the entire
waveform or gated region.
Amplitude The high value less the low value measured over the entire waveform or gated region.
Max
The most positive peak voltage. Max is measured over the entire waveform or gated
region.
Min
The most negative peak voltage. Min is measured over the entire waveform or gated
region.
High This value is used as 100% whenever high reference, mid reference, or low reference
values are needed, such as in fall time or rise time measurements. Calculate using either
the min/max or histogram method. The min/max method uses the maximum value found.
The histogram method uses the most common value found above the midpoint. This
value is measured over the entire waveform or gated region.
Low This value is used as 0% whenever high reference, mid reference, or low reference
values are needed, such as in fall time or rise time measurements. Calculate using either
the min/max or histogram method. The min/max method uses the minimum value found.
The histogram method uses the most common value found below the midpoint. This
value is measured over the entire waveform or gated region.
Positive
Overshoot This is measured over the entire waveform or gated region and is expressed as:
Positive Overshoot = (Maximum – High) / Amplitude x 100%.
Negative
Overshoot This is measured over the entire waveform or gated region and is expressed as:
Negative Overshoot = (Low – Minimum) / Amplitude x 100%.
Total overshoot
This is the summation of the positive overshoot and the negative overshoot.
126 MDO3000 Series Oscilloscopes User Manual