In this work , the macroscopical characteristics of diesel and diesel / lpg sprays are studied through using a digital camera with a high spatial resolution . based on processing technique for digital image , the droplets photographed , which are at the spray edge , are studied . after a comparison of the characteristics of sprays for different fuels , such as diesel , blend fuels of diesel and lpg with different weight fractions , it is shown that flash - boiling injection ( fuel containing dissolved gas ) is good for the atomization of fuel 本文对柴油和柴油lpg混合燃油的喷雾的宏观特性采用高分辨率数码相机进行测量，并运用数字图像技术处理了数码相机捕捉到的处于雾束外沿的粒子，通过比较纯柴油和不同lpg比例混合油的雾化性能，表明溶气喷射(闪急沸腾)有利于喷射油滴的雾化。
