METHOD OF SPECTROMETRIC ANALYSIS OF GASEOUS DECOMPOSITION PRODUCTS OF EXPLOSIVES Russian patent published in 2019 - IPC G01N25/24 G01N25/54 G01N21/71 G01N21/68 G01N21/3504 G01N21/3586 

FIELD: measurement technology.

SUBSTANCE: present invention relates to methods of analyzing mechanisms of behavior of explosives under thermal effects and can be used for analysis of thermal decomposition products of explosives. Essence of the invention lies in the fact that, unlike the known method of analyzing gaseous products of thermal treatment of a substance, which includes placing samples of explosives into a reaction volume, equipped with devices for heating and control temperature and pressure parameters, heating the reaction volume from the explosive, monitoring the state of the analyzed volume and recording measurement signals, spectral analysis of products of thermal destruction of an explosive according to the invention is carried out in real time using spectrometry in sub-THz-band frequency range, wherein the reaction volume is made in the form of two spatially separated evacuated volumes, in one of which heating of the explosive is carried out, and in the other one, analysis of the composition of the multicomponent medium formed during thermal decomposition of the explosive, radiation absorption spectra at resonance frequencies of a given product are used to conclude that it is available or not in decomposition products of explosives and its relative amount.

EFFECT: possibility of obtaining data on the thermal decomposition process at each moment of this process, as well as in increasing selectivity with respect to various individual components of the multicomponent mixture formed during thermal decomposition of explosives.

1 cl, 1 dwg, 1 ex