DEVICE FOR BURNING THIN-LAYER SAMPLE OF PYROTECHNIC SUBSTANCE Russian patent published in 1994 - IPC

FIELD: measurement technology. SUBSTANCE: sample 3 is held by a gripper built up of two bars 1 having through slots 2 is in the gap, the edges of sample 3 are clamped between the bars by means of a system of bolts 5 and nuts 6, which are tightened to reach a restrainer made in the form of feeler 7 of which the thickness is no more than the critical thickness of the tested sample; the bars are made from the material whose thermal activity is larger than that of the sample; the ratio of the slot length to its width is equal to 7-10. EFFECT: elimination of edge burning effects, stabilization of flame front. 2 cl, 2 dwg