An experimental study of the velocity field in a three-electrode arrangement of a plasma-chemical surface dielectric barrier discharge (SDBD) reactor designed for plant seed’s treatment was carried out. The effect of polarity and magnitude of the extraction voltage (potential of the third electrode), configuration of the SDBD system (5- and 10-mm distances between the strips were observed) and the permeability for gas flow of the third electrode (in the form of a plate or a grid) on the magnitude of the extraction ion current, and induced gas flow structure were analyzed. It is shown that the most uniform flow in the direction of the third electrode, necessary for uniform seed treatment, is achieved in the case of a permeable third electrode under positive displacement potential, opposing a surface discharge electrodes with a distance between the strips much less than the gap dimensions (5 mm between the strips with 10 mm between the third electrode and the barrier surface).

中文翻译：

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三电极表面阻挡放电装置中的离子风

对设计用于植物种子处理的等离子体化学表面介质阻挡放电 (SDBD) 反应器的三电极布置中的速度场进行了实验研究。提取电压的极性和幅度（第三个电极的电位）、SDBD 系统的配置（观察到条带之间的距离为 5 和 10 毫米）以及第三个电极的气流渗透率（在板或网格形式）对提取离子电流的大小和感应气流结构进行了分析。结果表明，在正位移电位下可渗透的第三电极的情况下，实现了均匀种子处理所需的第三电极方向上的最均匀流动，