Time-Dependent Temperature Measurements in Post-Detonation Combustion: Current State-of-the-Art Methods and Emerging Technologies
University of Dayton Research Institute Dayton United States
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Measurement of energy release and the kinetics of energy release are of fundamental and ongoing importance. The energy release processes associated with explosives are of particular interest to the defense community, but measurements are often made difficult by the fast timescales involved. For gram-scale explosive samples, detonation is typically completed within several microseconds. Subsequent afterburning of under-oxidized detonation products can then produce a fireball that persists for several milliseconds. Unfortunately, the timescales associated with these processes limit the measurement techniques that can be employed. The high temperatures and pressures involved in the explosion also limit measurement options since any sensors employed must be able to withstand the extreme environment, or at least transmit the required data before being destroyed.