title: [Measurement of molecular vibrational temperature in dielectric barrier discharge in argon/air at atmospheric pressure].
abstract: 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.
authors.affiliation: College of Physics Science and Technology, Hebei University, Baoding 071002, China.
authors.forename: Li-Fang
authors.initials: LF
authors.lastname: Dong
authors.forename: Feng
authors.initials: F
authors.lastname: Liu
authors.forename: Shu-Feng
authors.initials: SF
authors.lastname: Li
authors.forename: Jun-Xia
authors.initials: JX
authors.lastname: Ran
authors.forename: Ya-Feng
authors.initials: YF
authors.lastname: He
authors.forename: Xue-Chen
authors.initials: XC
authors.lastname: Li
authors.forename: Xue-Xia
authors.initials: XX
authors.lastname: Pang