Experimental study demonstrates high-resolution 3D reconstruction of submillimeter discharges in gas mixtures, highlighting the physical mechanisms of electrical breakdown.
Key Points
Develop a binocular stereo vision framework to achieve high-resolution 3D visualization and trajectory analysis of submillimeter, weakly luminous electrical discharge channels.
Optimized binocular camera parameters via multi-objective optimization and calibrated the optical system using a micro-chessboard.
Developed a brightness threshold-based point cloud filtering algorithm to reconstruct faint luminous channels under low-light conditions.
Validated the reconstruction method on complex branched electrical discharge channels within SF6/N2 gas mixtures.
Successfully mapped the 3D trajectories and spatial depth information of microscopic, weakly luminous discharge channels.
Identified and characterized key structural dynamics of the leader stepping mechanism during gas breakdown events.