High Voltage Triggered Spark Gap with Repeatable Gas Filling Structure

Zuo Xi Tian

doi:10.4028/www.scientific.net/AMM.432.373

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High Voltage Triggered Spark Gap with Repeatable Gas Filling Structure
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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vol. 432High Voltage Triggered Spark Gap with Repeatable...

High Voltage Triggered Spark Gap with Repeatable Gas Filling Structure

Abstract:

To resolve the problems of short working life and narrow operating voltage range of the spark gap with one-offin gas filling structure, a spark gap with repeatable gas filling structure was designed. The spark gap was composed of three electrodes and two gaps as well as gas filling devices. Electrodes structures adopted the form of field aberration three-electrode gas spark switch forming two discharge gaps between three electrodes of anode, cathode and triggering electrode. Gas filling devices were composed of fast connector, gas pipe, barometer and air valve, by which the gaps could be repeatedly charged and deflated from a hole at the center of anode. Working life is lengthened by exchanging gas, and operating voltage range is widened by changing gas pressure in a certain range. The spark gap was manufactured and applied successfully in a TEA CO₂ laser with pulse energy 170J. The results prove the designs feasible.