SPARK-GAP OF AN ELECTRIC ARC GENERATION DEVICE, AND CORRESPONDING ELECTRIC ARC GENERATION DEVICE

摘要

The invention relates to a spark-gap of an electric arc generation device for creating a seismic wave, wherein said spark-gap comprises: - a first electrode (2) connected to a first electrode mounting (4); - a second electrode (6) connected to a second electrode mounting (8) and having a concave surface (14) opposite the first electrode (2) and a diameter substantially greater than the diameter of the first electrode (2); and - at least one connection arm (10) connecting the first electrode mounting (4) to the second electrode mounting (8). The invention also relates to an electric arc generation device comprising such a spark-gap.