Axial plasma density propagation of barrier discharge non-thermal plasma bullets in an atmospheric pressure argon gas stream
Axial plasma density propagation of barrier discharge non-thermal plasma bullets in an atmospheric pressure argon gas stream
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DOI：
10.1088/0022-3727/42/10/105203
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发表时间：
2009-05
期刊：
影响因子：
--
通讯作者：
R. Ohyama;M. Sakamoto;A. Nagai
中科院分区：
文献类型：
--
作者：
R. Ohyama;M. Sakamoto;A. Nagai
实验研究了大气氩气等离子体子弹轴向传播时体积平均等离子体密度的特性。非热等离子体子弹通过玻璃管喷射到周围的空气中。考虑到等离子体运动的时间和空间分布，使用Rogowski线圈测量等离子体的传播。等离子体密度由传播速度和电流大小来计算。等离子体密度曲线是外加电压和生长长度的函数。等离子体密度约为1016 m−3，传播速度约为105 m s−1。这些值与弱电离非热等离子体射流的值相似。
The characteristics of volume-averaged plasma density on axial propagation for atmospheric argon (Ar) plasma bullets are experimentally investigated. The non-thermal plasma bullets are ejected through a glass tube into the surrounding ambient air. Taking into consideration the time and space profile of the plasma movement, the plasma propagation is measured using a Rogowski coil. The plasma density is evaluated from the propagation velocity and the current magnitude. The plasma density profiles are presented as functions of the applied voltage and the length of growth. The plasma density is in the order of 1016 m−3 and the propagation velocity is in the order of 105 m s−1. These values are similar to those of weakly ionized non-thermal plasma jets.