每当发生火灾时,首先遇到的问题就是浓烟滚滚,人们的视线被阻挡,很难判断火源的具体位置。在这种情况下,难以有效地阻止火灾蔓延,虽投入了大量的人力物力,由于不能对准火源,往往收效甚微。浓烟使人看不见火源的原因是因为可见光散失在烟雾微粒间。为了克服浓 Whenever a fire occurs, the first problem encountered is the smoke billowing, people’s eyes are blocked, it is difficult to determine the specific location of the fire. Under such circumstances, it is difficult to effectively stop the spread of the fire. Although a large amount of manpower and resources have been put into operation, the inefficiency of the fire source is often neglected. The reason that smoke is invisible to the source of smoke is the loss of visible light between the smoke particles. In order to overcome the concentration