Chen Jun-Ying, Dong Li-Fang, Ji Ya-Fei, Li Yuan-Yuan, Song Qian
College of Physics Science and Technology, Hebei University, Baoding 071002, China.
Guang Pu Xue Yu Guang Pu Fen Xi. 2011 Aug;31(8):2049-52.
Different discharge modes in different boundary discharge domains at the same experimental condition are observed in argon/air mixture in a dielectric barrier discharge system with two large diameter water electrodes. Regular patterns and random filaments are formed in the closed square boundary and the semiopen domain respectively. It is found that the relatively intensity of the several higher excitation energy spectral lines such as 696.5, 727.3, 750.4 and 772.4 nm increases with the applied voltage in the closed boundary domain while decreases in the semiopen domain. Results show that the electron average energy in the closed boundary is higher than that in the semiopen domain and the difference of the electron average energy increases with the applied voltage. The results of molecular vibration temperature estimated by the second positive spectrum of N2 molecular indicate that the vibration temperature increases with the applied voltage in the closed boundary and decreases with the applied voltage in the semiopen boundary domain.
在具有两个大直径水电极的介质阻挡放电系统中，于氩气/空气混合气体里，在相同实验条件下观察到不同边界放电区域的不同放电模式。在封闭正方形边界和半开放区域分别形成了规则图案和随机细丝。研究发现，在封闭边界区域，诸如696.5、727.3、750.4和772.4纳米等几条较高激发能谱线的相对强度随施加电压升高，而在半开放区域则降低。结果表明，封闭边界中的电子平均能量高于半开放区域，且电子平均能量的差值随施加电压增大。通过N₂分子的第二正谱估算的分子振动温度结果表明，振动温度在封闭边界随施加电压升高，在半开放边界区域随施加电压降低。
