Measuring time intervals
In this section, we discuss measuring a pulse width to show the principles of
time-interval measurement. The time interval you want to measure might be
a setup time, a propagation delay, or a rise time. However, all time-interval
measurements made with oscilloscopes are similar. In all cases you measure
the time between two events, where an event is defined as a voltage
transition of a specified polarity through a specified level. When measuring
the width of a pulse, these two events are the leading edge and the trailing
edge. The concepts developed here can be applied to any other time-interval
measurement. For two-channel measurements, you must take care to
deskew the two channels. See "Channel-to-Channel Measurements".
Measurements
Measuring time intervals
13–22
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