Download Oscilloscope Mode (cont`d)

Oscilloscope Mode
Oscilloscope Mode (cont'd)
Principal (suite)
Pulse
The trigger is regulated with channel 1 as a source, level at 2.04 V, on a
rising edge.
The Holdoff stabilizes the signal by inhibiting the trigger during 108 µs.
The DC coupling of the trigger lets the whole signal through.
In this example, the signal is not being disturbed and the option of noise
reject is not necessary.
The DC coupling of ch1 reveals the continuous component of the signal.
Selection of pulse-width trigger. In all cases, the effective trigger occurs on the
pulse trailing edge.
<
=
>
triggers on a pulse if its duration is less than the value set
triggers on a pulse if its duration is equal to the value set
triggers on a pulse if its duration is greater than the value set
25.0 µs Adjustment with the stylus using the time setting scroll bar
Double-tapping in this field displays a virtual numeric keypad which can be used
to directly input the value.
The choice of the
analysis:
Example
or
edge in the "Main" tab defines the limits of the
• edge
defines a pulse between
and
• edge
defines a pulse between
and
Signal injected on CH1: 1 pulse of 50 µs (repetitive or not)
The trigger parameters in the main menu are active (Source, Level, Edge, etc.).
The oscilloscope is triggered when the signal's pulse width is equal to the specified
pulse width (25.0 µs + tolerance).
The trigger occurs on the leading edge of the pulse, but is effective on the trailing edge.
Oscilloscope Mode (cont'd)
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SCOPIX Oscilloscopes