Use of bistatic laser monitor for high-speed imaging of combustion processes
M.V. Trigub1, N.A. Vasnev1, V.D. Kitler2, G.S. Evtushenko1,3
1V.E. Zuev Institute of Atmospheric Optics of Siberian Branch of the Russian Academy of Science, Tomsk, Russia
2Tomskiy Nauchnyy Tsentr SO Ran, Tomsk, Russia
3Scientific Research Institute - Federal Research Centre for Projects Evaluation and Consulting Services, Moscow, Russia
Keywords: high-speed imaging, active filtration, laser monitor, Ni-Al, synthesis of materials, DC arc, burning
Abstract
The paper presents the results of using a laser monitor with an independent illumination source (bistatic laser monitor) to image the processes blocked from an observer by the background light. The maximum shooting speed was 15-103 fps. The possibility to observe the structural transformations in a combustion wave of self-propagating high-temperature synthesis is shown. It is shown that a bistatic laser monitor allows one to significantly improve the image quality (contrast, brightness) of low-contrast objects.
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