Fundamental Characteristics of Degenerate Four-Wave Mixing Spectroscopy for Combustion Diagnostics.

用于燃烧诊断的简并四波混合光谱的基本特征。

• 批准号: 10650201
• 负责人: TEZAKI Atsumu
• 金额: $ 2.05万
• 依托单位: The University of Tokyo
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 1998
• 资助国家: 日本
• 起止时间: 1998 至 1999
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-10650201/
• 关键词: Laser Spectroscopy; DFWM; Combustion Diagnostics; Molecular Detection; Molecular Collision; Molecular Energy Transfer; Temperature Measurement; NOx; 一酸化窒素; DT-WM; 非線型光学; NO_X; 緩和過程; 圧力依存; 湿度依存

Buffer gas pressure dependence and temperature dependence of degenerate four-wave mixing (DFWM) spectroscopy have been investigated experimentally and model formulations ware proposed. Resonant DFWM signal intensity from NO shows significant decrease with increasing pressure of buffer gases (He, NィイD22ィエD2, COィイD22ィエD2, OィイD22ィエD2) for a constant pressure of NO. The small discrepancy between buffer gas species indicates that not only quenching but also other collision processes such as rotational and phase changing relaxation are responsible, unlike laser-induced fluorescence (LIF). These effects were incorporated in a theoretical model in terms of pressure dependent linewidth of resonant absorption, by which the pressure and input power dependence was reasonably reproduced. Temperature dependence of a specific rotational line strength at constant total pressure is accounted by considering the temperature dependent linewidth in addition to the term from thermal equilibrium state density.

实验研究了简并四波混频（DFWM）光谱的缓冲气体压力依赖性和温度依赖性，并提出了模型公式。从NO的共振DFWM信号强度显示显着下降与缓冲气体（He，NH_3 D22 H_2D_2，CO H_3 D22 H_2D_2，O H_3 D22 H_2D_2）的压力增加为NO的恒定压力。缓冲气体物种之间的小差异表明，不仅淬灭，但也有其他碰撞过程，如旋转和相变弛豫负责，不同于激光诱导荧光（LIF）。这些影响被纳入一个理论模型中的压力依赖的共振吸收线宽，通过该压力和输入功率的依赖关系被合理地再现。在恒定的总压下的一个特定的旋转线强度的温度依赖性占考虑的温度依赖性的线宽除了从热平衡态密度的术语。

项目成果

Y. Sano, A. Tezaki and H. Matsui: "Pressure and Temperature Dependence of the DFWM Signal Intensity of NO"Proc. XXIth IEA Task Leaders Meeting of Combustion Div.. 1-6 (1999)

Y. Sano、A. Tezaki 和 H. Matsui：“NO 的 DFWM 信号强度的压力和温度依赖性”Proc。

Y. SANO, A. TEZAKI, and H. MATSUI: "Fundamental Characteristics of Degenerate Four-Wave Mixing Spectroscopy in Combustion Measurement"Bunko Kenkyu. 118. 57-68 (1999)

Y. SANO、A. TEZAKI 和 H. MATSUI：“燃烧测量中简并四波混合光谱的基本特征”Bunko Kenkyu。

Y. SANO, A. TEZAKI, and H. MATSUI: "Pressure and Temperature Dependence of the DFWM Signal Intensity of NO"Proc. XXIth IEA Task Leaders Meeting of Combustion Div.. 6 (1999)

Y. SANO、A. TEZAKI 和 H. MATSUI：“NO 的 DFWM 信号强度的压力和温度依赖性”Proc。

佐野洋一郎、手崎衆、松為宏幸: "縮退四波混合分光法の燃焼計測における基本特性"燃焼研究. 118. 57-68 (1999)

Yoichiro Sano、Shu Tezaki、Hiroyuki Matsutame：“使用简并四波混合光谱进行燃烧测量的基本特征”燃烧研究 118. 57-68 (1999)。

佐野洋一郎,手崎衆,松為宏幸: "縮退四波混合分光法の燃料計測における基本特性"燃焼研究. 118. 57-68 (1999)

Yoichiro Sano、Shu Tezaki、Hiroyuki Matsutame：“使用简并四波混合光谱进行燃料测量的基本特性”燃烧研究 118. 57-68 (1999)。