REPUBLIC OF SERBIA

MINISTRY OF DEFENCE

www.mod.gov.rs

MINISTRY OF DEFENCE

Material Resources Sector

Defensive Technologies Department

Military Technical Institute

www.vti.mod.gov.rs

visualizing the thermal effect of THERMOBARIC explosives

uroš anđelić

Military Technical Institute, Belgrade, uroshcs@gmail.com

Danica simić

Military Technical Institute, Belgrade, simic_danica@yahoo.com

Dragan knežević

School of Electrical Engineering, Belgrade, Military Technical Institute, Belgrade

Marko Dević

Military Technical Institute, Belgrade

Abstract: Measuring the temperature of an explosion has always been a big challenge. In the last several decades many different techniques were used for this purpose, but none of them were reliable enough. Very fast temperature rise and fall time that occurs in explosions is very difficult to register with any kind of sensor. This paper presents a different approach that uses a high-speed infrared camera to record the explosion temperature. Optimal camera setup was achieved after a few attempts. The result was a detail infrared video of the explosion. Expansion of the products of detonation is clearly visible in this video. Different sets of data were extracted from the infrared recordings, like temperature-time and temperature-distance graphs. The results confirmed that the thermal effect of the thermobaric explosives can be reliably measured with this technique.

Keywords: temperature, explosive, thermovision, infrared camera.