Experimental study on electrode erosion characteristics of spark gas switch under different current

Tao, 黄涛 Huang; Weixi, 罗维熙 Luo; Peitian, 丛培天 Cong; Jiangtao, 曾江涛 Zeng; Tieping, 孙铁平 Sun

doi:10.3788/hplpb20142604.45042

Cited by 1 publication

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“…The current reports summarize the electrode surface's microstructure and the self-breakdown change rules through analyzing the accumulated ablation from multiple discharge experiments, and preliminarily studying the ablation characteristics and their influence on breakdown performance [6]. However, it is hard to study the breakdown characteristics of multi-gap switches of every experiment.…”

Section: Introductionmentioning

confidence: 99%

A novel method for multichannel discharge image diagnosis in gas switches based on multi-axis tomography techniques

Zhang

Sheng

et al. 2023

Plasma Sci. Technol.

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The discharge channel is a crucial diagnostic tool for the properties of gas switch. However, the single-view images is hardly to understand the inherently the discharge channel characteristics of trigger electrode. A reconstruction method of the discharge channel in gas switch is proposed based on multi-axis tomography technique, which uses very few projections of optical image to reconstruct the location of multichannel discharge in annular electrodes. In this paper, we present an algorithm, TVM-OSEM (total variation minimization ordered subsets expectation maximization) effectively removes artifacts on the reconstructed images to improve the accuracy of the diagnosis of discharge channels. The method is validated against simulations of radiator with high-density-difference boundary. The calculated discharge channel distribution from one experiment is presented.

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Section: Introductionmentioning

confidence: 99%