Method for increase in sensitivity of the ignition center coordinate pyrometric detector
The article describes the method for increase in sensitivity of the pyrometric detector for detection of ignition center based on two-dimensional coordinates by means of the mirrors located behind cylindrical lenses.
Designing of optical system with cylindrical lenses of ignition center coordinates pyrometric sensor
The paper presents the calculation of the optical system for the fire alarm sensor capable to determine two-dimensional coordinates of the ignition center.
Suppressed Light Emission of the Reaction Zone in Detonation
THE detonation of high explosives in water can be photographed with an open camera and a flash light as the explosive gases do not emit light. The method has been used1 to investigate the spread of shock waves and explosive gases, and to investigate the initiation by shock waves2. We have found that it can be used also in certain gases such as butane and propane. The method is not suitable, on the other hand, for explosives with two levels of detonation velocity in the case of low velocity. A great part of the reaction then occurs after the reaction zone has passed and the expanding explosive gases are very luminous even in water.