Ultrasonic Inspection of Pressure Vessel Construction Welds using Phased Arrays
نویسنده
چکیده
Ultrasonic phased arrays are a new technology that offers considerable potential for inspecting construction welds. Using electronic control of the beam, phased arrays can scan, sweep, steer and focus the ultrasound. Since welds typically produce defects of known character and orientation, phased arrays can be programmed to optimize weld inspections. These inspections include standard ASME-type pulse echo raster scans, zone discrimination, TOFD and “specials”, depending on the vessel, weld profile, geometry and specifications.
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