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Advances in Phased Array Weld Inspection Scan Plan Designs – Use of Compound S-scan for Improved Weld Flaw Detection and Sizing

The compound S-scan improves on traditional phased array weld inspection scan plan strategies by combining the S-scan and E-scan inspections as defined in ASME V, Article I into a single acquisition group providing more inspection coverage of the weld volume and heat affected zone. The compound S-scan improves the range and performance of existing phased array 1D pulse-echo probes, wedges, and instrumentation via new functionality in focal law calculators that are commercially available today from Olympus and other manufacturers. The compound S-scan improves the range and performance of existing phased array 1D pulse-echo probes, wedges, and instrumentation via new functionality in focal law calculators that are commercially available today from manufacturers of phased array instrumentation and software.

References
  • 2015 ASME V Article 4 Ultrasonic Examination Methods for Welds.
  • 2015 ASME V Article 4 Mandatory Appendix V Phased Array Linear Scanning Techniques.
  • 2015 ASME V Article 4 Mandatory Appendix V Phased Array Manual Raster Techniques using Linear Arrays.
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