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spark gap |
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spark gap [′spärk ‚gap] (electricity) An arrangement of two electrodes between which a spark may occur; the insulation (usually air) between the electrodes is self-restoring after passage of the spark; used as a switching device, for example, to protect equipment against lightning or to switch a radar antenna from receiver to transmitter and vice versa. Spark gap The region between two electrodes in which a disruptive electrical spark may take place. The gap should be taken to mean the electrodes as well as the intervening space. Such devices may have many uses. The ignition system in a gasoline engine furnishes a very important example. Another important case is the use of a spark gap as a protective device in electrical equipment. Here, surges in potential may be made to break down such a gap so that expensive equipment will not be damaged. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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| Ultra-Wideband technology has a history going back to Marconi and his original spark gap transmitters. This technology enhances energy transfer which shortens process time and allows for a larger spark gap. The metal work-piece is submerged in a dielectric fluid (electrically non-conducting) and separated from the tool by a very small spark gap. |
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