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레이저 유도 선해리 형광법(LIPE)을 이용한 화염내 OH 및 $O_{2}$ 분자의 2차원 농도 분포 측정
진성호,남기중,김회산,장래각,박승환,김웅,박경석,심경훈,김경수,Jin, Seong-Ho,Nam, Gi-Jung,Kim, Hoi-San,Chang, Nae-Kak,Park, Seung-Han,Kim, Ung,Park, Kyoung-Suk,Shim, Kyoung-Hoon,Kim, Gyung-Soo 대한기계학회 1996 大韓機械學會論文集B Vol.20 No.12
Planar images of OH and $O_{2}$ with tunable KrF excimer laser which has a) 0.5 $cm^{-1}$ / linewidth, b) 0.5 nm tuning range, c) 150 mJ pulse energy, and d) 20 ns pulse width are obtained to determine spatial distributions of OH and $O_{2}$ in premixed $C_{3}$H$_{8}$ /O$_{2}$ flame. The technique is based on planar laser induced pre-dissociative fluorescence(PLIPF) in which collisional quenching is almost avoided because of the fast pre-dissociation. Dispersed LIPF spectra of OH and $O_{2}$ are also measured in a flame in order to confirm the excitation of single vibronic state of OH and $O_{2}$, OH and $O_{2}$ are excited on the P$_{2}$(8) line of the $A^{2}$.SIGMA.$^{+}$(v'= 3)-X$^{2}$.PI.(v'||'||'&'||'||'quot;= 0) band and R(17) line of the Schumann-Runge band B$^{3}$.SIGMA.$_{u}$ $^{[-10]}$ (v'= 0)- X$^{3}$.SIGMA.$_{g}$ $^{[-10]}$ (v'||'||'&'||'||'quot;= 6), respectively. Dispersed OH and $O_{2}$ spectra show an excellent agreement with simulated spectrum and previous works done by other group respectively. It is confirmed that OH widely distributed around flame front area than $O_{2}$.