DEVICE FOR DETERMINING PARAMETERS OF EXPLOSIVE CONVERSION OF EM IN THERMAL EFFECTS Russian patent published in 2020 - IPC G01N33/22 G01N25/54 

FIELD: measuring equipment.

SUBSTANCE: invention relates to the field of measurement equipment and can be used for detection of the explosive material (EM) explosives conversion mode (presence or absence of detonation mode of explosive conversion of EM) and determination of pressure at front of detonation wave at explosion of relatively low weighed portion EM (0.2÷2 g) as a result of its heating, for example, during scientific research works. Disclosed is a device for determining parameters of explosive conversion during thermal effects, comprising a housing, in which in a certain sequence a sample EM is installed, bushing, heating device, thermocouple, measuring instruments connected to devices converting and processing measuring signals. Heating device is installed on end surface of housing, housing is composite to form cavity, in which cup with sample EM is installed, closed with cover, having annular groove of thermocouple attachment, passing in axial channel of heating element, installed in upper part of housing, in the lower part of the housing coaxially to the sample EM a measurement bushing is installed, pressed by one end to the cup, in which sensitive elements are placed, to the bottom of the bowl there pressed is a thrown steel plate, which is commensurate with the hole of the bushing, wherein wall thickness of bowl is selected from ratio: 20 mm/g>δ_wl/M_em > 15 mm/g, where δ_wl – the thickness of the wall of the bowl by the measuring sleeve, M_em – EM weight of TNT.

EFFECT: obtaining a structurally simple device which enables to detect the occurrence of detonation in the EM in heating and determining the pressure at the detonation front, which mainly provides one-sided heating of the EM, change of heating mode in wide range, including high rate of temperature increase, change of reaction pressure of reaction chamber, degree of filling of reaction chamber and condition of removal of decomposition products.

5 cl, 2 dwg