| Title |
A Spatio-Temporal Density Measurement of NO Molecules in Pulsed Barrier Discharge Using Laser Induced Fluorescence |
| DOI |
http://dx.doi.org/10.5207/JIEIE.2010.24.5.160 |
| Keywords |
Laser Induced Fluorescence ; NO ; Pulsed Barrier Discharge ; Rotational Temperature |
| Abstract |
This paper tried to find out NO generation and removal mechanisms in the space of the atmospheric pulsed barrier discharge using laser induced fluorescence method, which is a very effective approach to the measurement of spatio-temporal density of specific molecules. The propagation velocity of the primary streamer reaches about 2.7×10?[㎧] and the secondary streamer is produced in the vicinity of positive electrode after the primary streamer finished. In this work, pulse Nd:Yag and Dye lasers are used for generating the specific wavelength of 226[㎚], which is possible to excite NO molecules into A²Σ? ← X²Ⅱ(0.0) and fluorescence signals as the transition of A²Σ? → X²Ⅱ(0,2),(0,3) is measured. For the effective removal of NO molecules in the plasma discharge process, the lower oxygen contents are needed and the influence of secondary streamer for the reduction mechanism of NO molecules is important. |