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重迭法火焰摄影只须使用普通相机、普通底片和一般的冲洗条件，即可进行柴油机燃烧火焰发展过程的摄影，所得效果良好。 重迭法摄影的基本原理是根据柴油机工作过程是循环的重演的，每循环火焰发展过程基本相同的特点，采用了同步机构和闪光盘即可摄出瞬时的火焰照片，将各瞬时的照片组合起来即得到火焰发展过程的连续图片． 采用此装置还可进行火焰观察、油线及五彩摄影。 本文对实现重迭法火焰摄影有关技术向题：玻璃缸头设计，玻璃窗沾污及使用钢化玻璃代替石英玻璃等进行了研究，并得到解决。
Overlapped Flame Photography can be used to take photographs of the combustion process of diesel engines only with ordinary cameras, normal negatives and general flushing conditions. The result is good. The basic principle of overlap method photography is based on the diesel engine working process is a repeat of the cycle, the flame development process is basically the same characteristics of each cycle, the use of the synchronization mechanism and the flash disk can take instantaneous flame photo, the instantaneous combination of photos Get up to the flame of the continuous development process of the picture. This device can also be used for flame observation, oil lines and multicolored photography. In this paper, the technical problems of overlap method flame imaging are studied: the design of glass cylinder head, the stain of glass window and the use of toughened glass instead of quartz glass, etc., and solved.