Abstract: The principle,main components and function of the fibre-optic image viewing system were described. The internal flame of combustor in different operating conditions can be observed using this system. The flame image was recorded and analyzed systematically.Some measures for improvement for test process were suggested. The viewing system can be an aid in the future design of more durable combustors.

Key words: Turbojet engine;Combustion test;Fiber optics;Image display;Image analysis;Combustion chamber;Flame

摘要： 阐述了光导纤维图像观测系统的工作原理、主要部件及功能。利用该系统观测燃烧室内部不同工作状态下的火焰状况 ,对所记录下来的火焰图像进行了较为详细的分析 ,并对实验过程中出现的一些问题提出了改进措施。

关键词: 涡轮喷气发动机;燃烧试验;纤维光学;图像显示;图像分析;燃烧室;火焰