New Technology for NDT Weld Inspections – Phased Arrays and Diffraction Sizing
This article describes new techniques and technology for inspecting welds using automated ultrasonics. The prime new technology is phased arrays, while the new techniques are Time-of-Flight Diffraction and S-scan back diffraction. The relationship of phased arrays with North American codes is briefly given, along with an inspection result, comparing radiography, pulse-echo phased arrays and TOFD.
Changhee Lee, Jong-Bong Lee, Dong-Hwan Park and Suck-Joo Na
S. Labbé and M. Moles, "New Technology for NDT Weld Inspections – Phased Arrays and Diffraction Sizing", Materials Science Forum, Vols. 580-582, pp. 129-134, 2008