Technique of the research of characteristics of ignition of the condensed systems to variables heat flux

This paper presents a method for determining the ignition delay time of condensed systems when exposed to radiant heat flux on the sample surface. The heat flow through the focusing lens with the ability to move along the axis was applied to the sample. Changing the geometric characteristics of the optical system can be used for measurements of the ignition of samples condensed systems in a wide range of values.