数据采集在火焰闪烁频率的测量研究及分析中的应用

当可燃物燃烧时,产生的火焰通常具有一定的闪烁频率,并且每种可燃物都具有个自固定的闪烁频率,这种频率在火灾的危险度评估和火灾的监控中具有重要的研究价值.为了测量这些可燃物的火焰的闪烁频率,我们设计了数据采集系统,用多种可燃材料进行了大量的实验,研究了算法.经过处理和分析,得出了火焰闪烁频率分布在3-25Hz之间,主要频率在7-12Hz范围内,并且火焰闪烁频率与火焰大小和距红外接收器件的距离无关.基于以上结论,可以认为将火焰的闪烁频率作为判断火灾是否发生的判据是完全可以的.

Data Collection on the research of Fire Flash Frequency

The flame of combustible material is flickering and each combustible material has its own definite frequency. In order to measure the frequency, we develop data collection system, make several experiments on different materials, and analyze the algorithm. After carefully processing and analysis, we conclude that the frequency of combustion materials is between 3\|25Hz, the main frequency is between 7\|12Hz and the frequency has no relationship to the distance and size of the flame. It can be said that the frequency can be a criterion in fire detection system.