Jul 27, 2026
Which Pixel Pitch and Signal-to-Noise Ratio (SNR) Are Required for Digital Radiography to Detect Fine Porosity in Double-Wall Pipe Welds?
Introduction: When a Tiny Defect Becomes a Big Problem
Imagine a newly fabricated pipeline destined for a refinery, offshore platform, or power generation facility. The welds, which join each pipe segment to their adjacents, pass visual inspection and appear flawless to the naked eye. But hidden within the weld, there are often microscopic gas pores—small imperfections that compromise structural integrity and lead to premature failure.