Studies of the Influence of Nitrogen or Argon on OH, O2 Emission under High Temperature and High Pressure by Spectrographic Method
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摘要: 本文利用我们研制的棱镜谱仪探测技术研究了氢反应过程OH、O2的激发辐射特性。研究表明,在高温高压下氩气、氮气减弱链式反应,降低OH辐射;但是,一定量的氩可以使O2辐射加强。谱仪测量发现,O2辐射迟于OH辐射,它直接证明了O2在链中止后受激辐射。本文还观察了入射波激励和反射波激励下OH辐射强度及感应时间的变化过程。所用的光谱探测技术可用于冲击波激励或高速反应产生的高温高压激励辐射特性的研究。Abstract: The behavior of OH, O2 in the process of the reaction for hydrogen are successfully studied by using improved prism spectrograph. The results show that nitrogen and argon which are as third bodies can get energy from free-atoms and radicals, thus decrease the OH emission; but certain argon atoms may increases the OH emission. The measurements using improved prism spectrograph found that O2 emission always delays the OH emission which directly proves that O2 may be excited after the stop of reaction for the chain. Both OH emission and induction time are observed under the excitation of incident wave and reflection wave. The technique for improved prism spectrograph can be used to study emission behavior under excitation by shock wave or high temperature-high pressure generated by high speed reaction.
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Key words:
- spectrum /
- emission /
- excitation by high temperature and high pressure
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Skinner G B, et al. J Chem Phys, 1965, 42(2): 2190. 刘才学, 胡栋, 王永国, 等. 第二届四川省原子、分子物理学术会议论文. 成都, 1992. Takano Y, et al. J Fluid Mech, 1985, 160: 29. Schott G L, et al. J Chem Phys, 1958, 29(5): 1177.
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