Experimental Study on Light Radiation Characteristics of Tantalum Wire Electric Explosion

Abstract

To investigate the light radiation process of metal wire electric explosion under various working conditions, a synchronous testing system was established using high-speed cameras, photocell tubes and other instruments to study the ultra-fine tantalum wire electric explosion process. The light radiation characteristics of tantalum wire electric explosion were analyzed under different input voltage, quantity, and length conditions. Results indicate that increasing the input voltage from 15kV to 21kV leads to an increase in relative light intensity emitted by the tantalum wire at measurement point 4 from 0.13V to 3.62V with an extension of luminescence process from 4.23ms to 8.42ms and the light saturation time decreases from 150 µs to 20.85 µs; Increasing the number of tantalum wires does not significantly affect luminescence time or saturation time but decreases light intensity at measuring point 4 when increased from two to twelve; When the length of tantalum wire increases from 54.5cm to 68cm, the light intensity generated during the explosion process decreases, the luminescence process changes from 307µs to 921µs, and the light saturation time extends from 23.52µs to 40µs. These experimental findings provide robust data support for further exploration into synchronous detonation technology for light-initiated explosive.