Measuring Waveforms
TDS 420A, TDS 430A, TDS 460A & TDS 510A User Manual
3–75
Table 3–5: Measurement Definitions (Cont.)
Name Definition
Positive Overshoot Voltage measurement over the entire waveform or gated region.
PositiveOvershoot +
Max * High
Amplitude
100%
Positive Width Timing measurement of the first pulse in the waveform or gated region. The distance (time)
between MidRef (default 50%) amplitude points of a positive pulse.
Rise time Timing measurement. Time taken for the leading edge of the first pulse in the waveform or gated
region to rise from a Low Ref value (default = 10%) to a High Ref value (default = 90%) of its final
value.
RMS Voltage measurement. The true Root Mean Square voltage over the entire waveform or gated
region.
Measurement Readouts
With no menus displayed, the measurement readouts appear at the right of the
display (see Figure 3–38). When menus are displayed, the readouts appear in the
graticule area. You can display and continuously update as many as four
measurements at any one time.
Measurement
Readout Area
Figure 3–38: Measurement Readouts
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