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RIGOL
The Automatic Measurement of Time Parameters
VS5000 series oscilloscopes provide automatic timing parameters measurements;
Frequency, Period, Rise Time, Fall Time, +Width, -Width, Delay 1→2 , Delay 1→2 ,
+Duty and -Duty.
Figure 2-42 shows a pulse with some of the time measurement points.
Rise Time
Rise Time: Time that the rising edge of the first pulse in the waveform takes to rise
from 10% to 90% of its amplitude.
Fall Time:
Time that the falling edge of the first pulse in the waveform takes to
fall from 90% to 10% of its amplitude.
+Width:
The width of the first positive pulse in 50% amplitude points.
-Width:
The width of the first negative pulse in the 50% amplitude points.
Delay 1→2 : The delay between the two channels at the rising edge.
Delay 1→2 : The delay between the two channels at the falling edge.
+Duty:
+Duty Cycle, defined as +Width/Period
-Duty:
-Duty Cycle, defined as -Width/Period
© 2008 RIGOL Technologies, Inc.
Fall Time
+Width
Figure 2-43
Definition of Time Parameters
User's Guide for VS5000 Series
-Width
90%
50%
10%
2-65
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