Oscilloscope measurements: Using a triggered sweep on an oscilloscope primarily improves the accuracy/repeatability of which measurement dimension?

Introduction / Context:
An oscilloscope's triggered sweep stabilizes repetitive waveforms by initiating the timebase at a consistent point on the signal. This capability is essential for accurate time-related measurements such as period, pulse width, rise/fall times, and delay.

Given Data / Assumptions:

• Repetitive signal with a well-defined trigger condition (edge/level).
• Oscilloscope supports triggered, auto, and free-run modes.
• Interest in measurement accuracy and stability.

Concept / Approach:
Triggered sweep synchronizes the horizontal deflection (time axis) to the signal’s trigger event, making each acquisition begin at the same phase point. This yields a stable trace with minimal jitter, enabling precise timing measurements. While amplitude accuracy depends on vertical calibration and probe compensation, timing benefits most directly from consistent horizontal synchronization.

Step-by-Step Solution:
Set trigger source to the signal under test.Choose an appropriate trigger mode and level to capture a consistent edge.Observe the stabilized display; use cursors or graticule to measure time intervals.Result: improved timing accuracy and repeatability.

Verification / Alternative check:
Compare measurements in free-run vs. triggered mode; only the latter yields a steady, phase-locked display suitable for precise timing.

Why Other Options Are Wrong:
Amplitude accuracy is governed mainly by vertical gain and probe calibration.

“Graticule activity” is not a technical metric.

Probe compensation is adjusted separately and does not rely on trigger synchronization.

Common Pitfalls:
Incorrect trigger level or coupling can cause unstable displays; ensure adequate signal amplitude and bandwidth for reliable triggering.

Final Answer:
timing