Rigol DS1000CA Series - Page 115

RIGOL
Copyright ©1998-2008 RIGOL Technologies, Inc.
User’s Guide for DS1000CA Series
2-89
The automatic measurement of time parameters
The DS1000CA series oscilloscopes provide timing parameters auto-measurements;
Frequency, Period, Rise Time, Fall Time, +Width, -Width, Delay 1→2
, Delay 1→2 ,
+Duty and -Duty.
Figure 2-111 shows a pulse with some of the time measurement points.
Figure 2-111 The time parameters
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
10%
50%
90%
-Width
+Width
Fall Time
Rise Time