Design and Experiment of an 8kJ-pulsed Seismic Source

Abstract

In this paper, an 8kJ-pulsed seismic source with a closed cavity transducer is designed and the discharge experiment is carried out in which the selected variables are electrode materials, voltage and electrode spacing. We focus on the resistance of the plasma channel and the discharge power. By comparison, the effective power of the output of electrodes in non-metallic materials is larger than that of metallic materials. With the decrease of the voltage, the longer the duration of low resistance is. With the increase of the voltage, the electric energy conversion rate of the discharge plasma is also increased. This study provides the necessary reference for the improvement of the pulsed seismic source.