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.

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已通过实验研究，并提出了模型公式。NO 的共振 DFWM 信号强度显示，随着缓冲气体（He、NiiD22 D2、COD22D2、 OD22D2) 对于恒定的 NO 压力 缓冲气体种类之间的微小差异表明不仅与激光诱导荧光 (LIF) 不同的是，这些效应在共振吸收的压力相关线宽方面被纳入了理论模型中，其中压力和输入功率是由淬灭过程和其他碰撞过程（例如旋转和相变弛豫）造成的。合理地再现了恒定总压下特定旋转线强度的温度依赖性，除了热平衡状态密度项之外，还考虑了温度依赖性线宽。

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。

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)。

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。