Time Measurements - Rigol DS1102/4B User Manual

Time Measurements

The DS1000B series
auto-measurements; Frequency, Period, Rise Time, Fall Time, +Width, -Width, Delay
A B , Delay A B , +Duty and –Duty, Phase A B ,Phase A B .
Figure 2-124 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 A B : The time delays between the channel A and channel B at the rising
edge.
Delay A B : The time delays between the channel A and channel B at the falling
edge.
Phase A B : The phase between the channel A and channel B at the rising edge.
Phase=(delay/source A period) 360
Phase A B : The phase between the channel A and channel B at the falling edge.
+Duty: +Duty Cycle, defined as +Width/Period
-Duty: -Duty Cycle, defined as -Width/Period.
© 2008 RIGOL Technologies, Inc.
oscilloscopes provide
Fall Time
+Width
Figure 2-124 The time parameters
User's Guide for DS1000B Series
12 kinds timing
-Width
RIGOL
parameters
90%
50%
10%
2-95