30.1. The automatic measurement of time parameters
The oscilloscopes provide time parameters auto-measurements include Frequency, Period, Rise Time, Fall
Time, +Width, -Width, Delay 1→2 , Delay 1→2 , +Duty and -Duty.
Fig. 70 shows a pulse with some of the time measurement points.
Fig. 70
Rise Time: Time that the leading 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.
31. How to measure with cursors
Press the Cursor button to display the cursor measurement function menu (CURS MEAS) in the screen.
The Cursor Measurement for normal model:
The cursor measurement includes Voltage Measurement and Time Measurement at normal model, shown
as Fig. 71.
Fig. 71 CURS MEAS Menu
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