论文标题
对空气中的大气压力均匀排放的研究，辅助浮动碳纤维微电极
Study on the atmospheric pressure homogeneous discharge in air assisted with a floating carbon fibre microelectrode
论文作者
论文摘要
基于考虑增加初始电子数量并为放电空间提供适当的电场强度分布，本文提出了在空气中采用浮动碳纤维电极以实现大气压力均匀排放（APHD）的一种方法。对电极特性的研究表明，这种结构可以充分利用碳纤维微电极的微电荷过程，以及螺旋电极的良好排放效应，为放电空间提供大量初始电子。此外，具有逐渐变化的非均匀电场分布有助于该结构中电子雪崩的缓慢生长。因此，可以降低初始放电电压，并可以抑制丝状排放通道的形成，从而为大气空气中均匀放电提供了理论上的可能性。实验表明，在6.0 kV的施加电压下，可以在内径6 mm的PFA管中实现三维均匀的排放现象，表现出良好的均匀性和大尺度。
Based on the consideration of increasing the number of initial electrons and providing an appropriate distribution of electric field strength for discharge space, a method of adopting the wire-cylindrical type electrode structure with a floating carbon fibre electrode to achieve atmospheric pressure homogeneous discharge (APHD) in air is proposed in this paper. Studies of the electrode characteristics show that this structure can make full use of the microdischarge process of the carbon fibre microelectrode and the good discharge effect of the helical electrode to provide plenty of initial electrons for the discharge space. Besides, the non-uniform electric field distribution with gradual change is conducive to the slow growth of electron avalanches in this structure. Thus, the initial discharge voltage can be reduced and the formation of filamentary discharge channels can be inhibited, which provides theoretical possibilities for the homogeneous discharge in atmospheric air. Experiments show that a three-dimensional uniform discharge phenomenon can be realized under a 6.0 kV applied voltage in a PFA tube of 6 mm inner diameter, displaying good uniformity and large scale.
