Sweep

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Sweep

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The motion of the visible dot across the face of a cathode-ray tube, as a result of deflections of the electron beam. </dd>
A linear time-base sweep has a constant sweep speed before retrace. An expanded time-base sweep is produced if the sweep speeds is increased during a selected part of the cycle; a delayed time-base sweep if the start of the sweep is delayed, usually to provide an expanded scale for a particular part. A sweep intended primarily for measurement of range may be called a range sweep. See trace. </dd>

References

This article is based on NASA's Dictionary of Technical Terms for Aerospace Use