Manual / Semi-Automated Phased Array Corrosion Mapping

Fig. 1 - VEO3 corrosion mapping of steel pipes

Manual/Semi-Automated Scanning

Phased array L-Scans can be carried out freehand (no encoder with a live timed scan on the screen) over large areas or semi-automated (scanning manually with an encoder) to gather scans in a set area.

Manual/semi-automated scans have advantages over fully automated systems with large scanners:

• Freehand scanning allows the user to screen large areas without recording data to locate areas of wall loss for further investigation. PA probes cover a larger area than conventional UT enabling the user to scan the same area much faster.
• Freehand or small encoders allow inspection in restricted areas that large scanners cannot access.
• An efficient screening tool to evaluate inspection areas quickly and in greater detail than conventional UT.

Fig. 2 - Encoded manual scan on steel plate

Software

UTStudio+ and UTMap data review software are designed with corrosion mapping in mind. Both software offer advanced post-processing tools, automated defect sizing with annotations, and CSV file exporting of results. UTMap adds the ability to adjust scan line positions in a Merged C-Scan and combine multiple scan files into a single map that can be evaluated together and show a complete picture of the inspection.

Scanning an area manually can produce errors in position between scan lines; the UTMap T-scan canvas allows the scan line to be re-positioned to the correct location.

Fig. 3 - UTStudio+ (Left) and UTMap (Right) merged C-Scan data review

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Recommended Tool Package

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Please contact our Applications Team if you have any questions. You can also find more solutions on our website.

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