Measurement of Detonation Velocity of Industrial Explosive Using Continuous Detonation Velocity Method

The average detonation velocity and continuous detonation velocity of powdery emulsion explosive and emulsion explosive were measured respectively by electrometric method and continuous velocity probe.Results show that,for powdery emulsion explosive with the charge density of 850 kg·m-3 and 820 kg·m-3,the average detonation velocities are 4526 m·s-1 and 4020 m·s-1;the corresponding continuous detonation velocity ranges are 4300-4600 m·s-1 and 4000-4300 m·s-1 during the stable detonation phase.For emulsion explosive with the charge density of 900 kg·m-3 and 840 kg·m-3,the average detonation velocities are 4384 m·s-1 and 2345 m·s-1;the corresponding continuous velocity ranges are 3370-4592 m·s-1 and 2871-3420 m·s-1.The detonation velocity measured by the continuous velocity probe method is in accord with the detonation velocity measured by the traditional electrometric method,and the continuous velocity probe method can even give the true course of detonation development for industrial explosive.