Width Triggers

A width trigger occurs when a pulse that crosses a vertical threshold you specify and with a polarity you specify also has a duration that is either within or outside a duration range you specify. The oscilloscope can trigger on pulses of positive, negative, or either polarity.

Use the width trigger to detect transient pulses with a duration that falls within or outside of a known range.

You can configure the width trigger parameters in NI‑SCOPE using the Analog Width Ref Trigger instance of the Configure Trigger (poly) VI.

The following figure illustrates width triggering.

Legend

1. Trigger level
2. Width low threshold
3. Width high threshold
4. Positive width trigger (outside)
5. Positive width trigger (within)
6. Negative width trigger (outside)
7. Negative width trigger (within)