rotary spark gap


Also found in: Acronyms.

rotary spark gap

[′rōd·ə·rē ′spärk ‚gap]
(electricity)
A spark gap in which sparks occur between one or more fixed electrodes and a number of electrodes projecting outward from the circumference of a motor-driven metal disk. Also known as rotary gap.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
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