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Abstract
This paper discusses a technique for monitoring the combustion of high-energy materials in real time using a laser monitor modified to track the combustion front at the relatively long distance between the object of study and optical system. Options for moving the platform with the sample at a fixed beam of a laser monitor and a system with a motorized rotary mirror are considered. The system provides moving the observation area over the surface of the sample at an adjustable speed up to 22 cm/s. The advantages of the proposed technique are the possibility of high-speed control the combustion front propagation through the sample, full suppression of background lighting and the distance increasing when monitoring high-temperature objects. The paper presents the results of imaging the combustion in air of nanothermite compositions in a real time with movable field of view. The video images allow observing the changes in morphology of the nanopowder surface during combustion. In contrast to previously used laser monitors, the system allows studying the uniformity and linearity of combustion front propagation including the local burning rate at different moments of time.
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