It has previously been demonstrated that the ratio of the degenerate four wave mixing signal from two hot water line groups near 3231 cm–1 can be used for seedless flame temperature measurements. This paper presents an investigation of the impact of saturation effects on the measured signal intensity from each line group, as well as an estimation of the accuracy of the method. The saturation effects observed here would result in a large systematic error if they are not taken into account when using the degenerate four-wave mixing intensity of these water line groups to calculate the flame temperature.

中文翻译：

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中红外简并四波混合火焰测温的饱和度相关性

先前已经证明，来自 3231 cm-1 附近的两个热水线组的简并四波混合信号的比率可用于无籽火焰温度测量。本文研究了饱和效应对来自每个线组的测量信号强度的影响，以及对该方法准确性的估计。如果在使用这些水线组的退化四波混合强度计算火焰温度时不考虑它们，这里观察到的饱和效应将导致很大的系统误差。