Common Mistakes in Back-Wall Echo Review for Composite Aircraft Panels
https://weld-testing-knowledge.clearhavendigest.com/posts/radiographic-weld-testing-for-pressure-vessel-fabrication-checks-that-matter
Common Mistakes in Back-Wall Echo Review for Composite Aircraft Panels Large panels can require wide C-scan maps and reliable part coordinates. A back-wall echo can be a useful reference for sound transmission through a part