Plasma Parameters of a Gliding Arc Jet at Atmospheric Pressure Obtained by a Line-Ratio Method
Plasma Parameters of a Gliding Arc Jet at Atmospheric Pressure Obtained by a Line-Ratio Method
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DOI：
10.1088/1009-0630/15/8/11
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发表时间：
2013-08
影响因子：
1.7
通讯作者：
Li Hui;Xie Ming-feng
中科院分区：
文献类型：
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作者：
Li Hui;Xie Ming-feng
研制了一种由横向磁场驱动的滑动电弧射流发生器，用于在常压下产生非平衡等离子体。利用OH自由基的光谱估计气体温度约为2400±400 K。阐述了用线比法测定滑行电弧射流等离子体的电子温度和电子密度的方法。这种线比方法是基于一个碰撞辐射模型。实验结果表明，电子温度约为1.0 eV，电子密度约为6.9 × 1014 cm−3。显然，GAJ的等离子体处于非平衡态。
A generator of the gliding arc jet (GAJ), which is driven by a transverse magnetic field, is developed to produce non-equilibrium plasma at atmospheric pressure. The gas temperature is estimated using the spectrum of OH radicals to be about 2400±400 K. The determinations of electron temperature and electron density by using a line-ratio method are elaborated for the gliding arc jet plasma. This line-ratio method is based on a collisional-radiative model. The experiment results show that electron temperature is about 1.0 eV and electron density is about 6.9 × 1014 cm−3. Obviously, the plasma of GAJ is in a non-equilibrium state.