Discharge Characteristics of a Cold-Atmospheric-Plasma Jet Array Generated With Single-Electrode Configuration
Discharge Characteristics of a Cold-Atmospheric-Plasma Jet Array Generated With Single-Electrode Configuration
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DOI：
10.1109/tps.2012.2191307
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发表时间：
2012-06-01
影响因子：
1.5
通讯作者：
Wen, Xiaoqiong
中科院分区：
文献类型：
--
作者：
Fan, Qian-Qian;Qian, Mu-Yang;Wen, Xiaoqiong
本文设计了一种以单电极结构为基本等离子体射流的、蜂窝状排列的七股冷大气等离子体(CAP)射流二维阵列装置。这项工作的动机是使用固有的小大气等离子体来解决许多大规模处理应用的挑战。在详细的电学、光谱和成像表征的基础上，研究了等离子体射流阵列的放电特性。结果表明，CAP射流阵列具有良好的时间射流均匀性。此外，通过在端面图上拍摄的两组增强型电荷耦合器件图像，对射流放电的动态行为进行了详细的研究。结果表明，这7个喷流具有良好的时间同步性和喷注-喷注的均匀性，并表现出丰富的喷注-喷注相互作用的动力学特性，例如在周围的喷头有轻微的排斥，特别是在较小的氦气流量下。这些动态特性为更好地控制喷射-喷射相互作用和进一步优化大规模CAP源的设计提供了可能的见解。
In this paper, a cold atmospheric plasma (CAP) jet array is generated by a 2-D array device of seven CAP jets arranged in a honeycomb configuration and designed with single-electrode configuration as the elemental plasma jet. The work is motivated by the challenge of using inherently small atmospheric plasmas to address many large-scale processing applications. The discharge characteristics of the plasma jet array are investigated based on detailed electrical, spectroscopic, and imaging characterizations. The CAP jet array is shown to achieve good temporal jet-jet uniformity. Furthermore, the dynamic behavior of the jet discharges is studied particularly through two series of intensified-charge-coupled-device images taken at the end views. It has been found that the seven jets show a good temporal synchronization and jet-jet uniformity, as well as rich dynamics of jet-jet interactions such as a slight repulsion at surrounding jet heads, particularly for a small gas flow rate of helium. These dynamic features offer possible insights with which to better control the jet-jet interactions and further optimize the design of large-scale CAP sources.