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首页> 外文期刊>Journal of Physics, D. Applied Physics: A Europhysics Journal >Influence of applied voltage and electrical conductivity on underwater pin-to-pin pulsed discharge
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Influence of applied voltage and electrical conductivity on underwater pin-to-pin pulsed discharge

机译：施加电压和电导率对水下销波脉冲放电的影响

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摘要

A parametric study of an underwater pulsed plasma discharge in pin-to-pin electrode configuration has been performed. The influence of two parameters has been reported, the water conductivity (from 50 to 500 mu S cm(-1)) and the applied voltage (from 6 to 16 kV). Two complementary diagnostics, time resolved refractive index-based techniques and electrical measurements have been performed in order to study the discharge propagation and breakdown phenomena in water according to the two parameters. A single high voltage of duration between 100 mu s and 1 ms is applied between two 100 mu m diameter platinum tips separated by 2 mm and immersed in the aqueous solution. This work, which provides valuable new results, is of great interest to better understand the mechanisms of initiation and propagation of pin-to-pin discharge in water. For low conductivity (from 50 to 100 mu S cm(-1)) results have confirmed two regimes of discharge (cathode and anode) and the increase of the applied voltage first makes the breakdown more achievable and then favors the apparition of the anode regime. For 500 mu S cm(-1) results have highlighted cathode regime for low applied voltage but a mixed regime (anode and cathode) for high applied voltage.
机译：已经进行了对销钉电极构造中的水下脉冲等离子体放电的参数研究。已经报道了两种参数的影响，导电性（50至500μscm（-1））和施加的电压（从6到16kV）。已经执行了两个互补诊断，时间解决了基于折射率的技术和电测量，以便根据两个参数研究水中的排出传播和击穿现象。在100 mu S和1 ms之间的单个高电压施加在两种100μm直径的铂尖端之间，分离2mm并浸入水溶液中。这项工作提供了有价值的新结果，对更好地了解销钉放电在水中的启动和传播的机制非常感兴趣。对于低电导率（从50至100μscm（-1）））结果证实了两个放电（阴极和阳极）的制度，并且施加电压的增加首先使得击穿变得更加可实现，然后对阳极方案的幻影进行击穿。对于500 mu S cm（-1），结果具有突出显示的阴极状态，用于低施加电压，而是用于高施加电压的混合状态（阳极和阴极）。

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