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1. 发明授权

US06543935B2 Method and system for instantaneously determining the temperature of a low density gas using ensemble ratioing of laser-induced fluorescence peaks 失效
标题翻译：使用激光诱导荧光峰的整体比率即时确定低密度气体的温度的方法和系统
公开(公告)号：US06543935B2
公开(公告)日：2003-04-08
申请号：US09846129
申请日：2001-04-30
申请人： R. Jeffrey Balla , Reginald J. Exton
发明人： R. Jeffrey Balla , Reginald J. Exton
IPC分类号： G01K700
CPC分类号： H05H1/0043 , G01K11/00 , G01K11/20
摘要： A method and system are provided for determining temperature of a low density gas seeded with molecules of iodine. The Cordes bands of the iodine molecules are excited with light energy of a known wavelength (e.g., between 175-210 nanometers) to generate fluorescent emission. At least a portion of the emission's light intensity is collected and used to generate an emission spectrograph. The spectrograph's vibrational energy level peaks are fitted to a vibrational Boltzmann distribution. Specifically, one of the vibrational energy level peaks associated with molecule population in a ground vibrational energy level at a wavelength greater than the known wavelength of the light energy is selected. Next, a plurality of ratios are generated that define a unique linear relationship for a temperature of the seeded environment. Each of these ratios is defined by a ratio of the selected one of the vibrational energy level peaks (in a ground vibrational energy level) to another unique peak (of the vibrational energy level peaks) associated with molecule population in a vibrational energy level that is greater than the ground vibrational energy level.
摘要翻译：提供了一种用于确定用碘分子种植的低密度气体的温度的方法和系统。碘分子的Cordes带被已知波长的光能（例如，175-210纳米）激发，以产生荧光发射。发射光强度的至少一部分被收集并用于产生发射光谱仪。光谱仪的振动能级峰值适用于振动波尔兹曼分布。具体地说，选择与波长比光能的已知波长大的地面振动能级中与分子群体相关的振动能量级峰值之一。接下来，生成多个比率，其定义针对种子环境的温度的独特的线性关系。这些比率中的每一个由振动能级水平峰值（在地面振动能级）与振动能级之间与分子群体相关的另一唯一峰值（振动能级峰值）的比率来定义，大于地面振动能级。

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