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引言 用激光诊断燃烧过程中的各种组份,具有非常多的优点。我们已经用激光光谱的方法,测量了火焰中的OH、CH、C_2等自由基的分布以及温度分布,并取得了前所未见报道的很有价值的结果。但是火焰中的不透明微粒,例如粉尘、碳粒等分布,却无法用上述光谱方法进行测量,另一方面,在实际生产中,了解这些微粒分布的情况对于控制生产流程,研究燃烧机理又是非常重要的,而在过去是很难做到实时实地的监测。
Introduction Laser diagnosis of various components of the combustion process has many advantages. We have used laser spectroscopy to measure the distribution and temperature distribution of free radicals such as OH, CH, C 2 in the flame and have achieved valuable results that have never been reported before. However, opaque particles in the flame, such as dust and carbon particles, can not be measured by the above spectroscopic method. On the other hand, in actual production, understanding the distribution of these particles is very important for controlling the production process and studying the combustion mechanism Important, while in the past it is difficult to do real-time field monitoring.