RIGOL
© 2008 RIGOL Technologies, Inc.
User’s Guide for DS1000B Series
Time Measurements
The DS1000B series oscilloscopes provide 12 kinds timing parameters
auto-measurements; Frequency, Period, Rise Time, Fall Time, +Width, -Width, Delay
AėB
, Delay AėB , +Duty and –Duty, Phase AėB ,Phase AėB .
Figure 2-124 shows a pulse with some of the time measurement points.
Figure 2-124 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 AėB
: The time delays between the channel A and channel B at the rising
edge.
Delay AėB
: 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)h360e
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.
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