[Measurement of molecular vibrational temperature in dielectric barrier discharge in argon/air at atmospheric pressure].
Vibrational temperature of N2 (C 3IIu) molecules in dielectric barrier discharge (DBD) in argon/air at atmospheric pressure, in which the water electrodes were employed, was measured by using a method of spectrum diagnosis. Emission spectral lines of the N2 second positive band system(C 3IIu --> B 3IIg) and the sequences of vibrational bands with deltav = -1, deltav = -2 and deltav = -3 were used in the calculation. The experiment results show that the molecular vibrational temperature of N2 is in the range from 1 938 K to 2 720 K, and it increases almost linearly with increasing the air content in gas mixture. These results are of great importance to the study of plasma dynamics of DBD.
Dong
Li-Fang
LF
College of Physics Science and Technology, Hebei University, Baoding 071002, China.
Liu
Feng
F
Li
Shu-Feng
SF
Ran
Jun-Xia
JX
He
Ya-Feng
YF
Li
Xue-Chen
XC
Pang
Xue-Xia
XX