Application Examples
Rise time is typically measured between the 10% and 90% amplitude levels of a signal. These are the default reference levels
that the oscilloscope uses for rise time measurements, However, in this example, you need to measure the time that the signal
takes to pass between the 0.8 V and 2.0 V levels.
You can custom ize the rise time measurement to measure the signal transition time between any two reference levels. You
can set each of these reference levels to a s pecific percent of the signal a mplitude or to a specific level in vertical units (such
as volts or amperes).
Measuring Specific Events. Next you want to see the pulses in the incoming digital signal, but the pulse widths vary so it is
hard to establish a stable trigger. To look at a snapshot of the digital signal, do this step:
1. Push Single to capture a single acqu isition.
Now you want to measure the width of each displayed pulse. You can u s e measurement ga ting to select a specific pulse to
measure. To measure the second pulse:
1. Push Measure.
DPO4000 Series User Manual 213
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