Stereoscopic Endoscopic Optical System for 3D Measurement of Pipeline WeldedUnions′ Internal Geometry

摘要

During fabrication of Steel Catenary Risers, the weldingprocess is considered critical to its lifetime. Control the girthweld misalignment during fabrication would improve fatigueperformance.The present work develops an optical system capable ofquantifying the misalignment between the welded riserssections and to detect common geometrical welding defectslike lack of fusion and excess of penetration utilizing astereoscopic assembly.