Guided Wave Ultrasonic (GUL)

Guided Wave Ultrasonic (GUL)


Atlas Inspection Technologies personnel provide Short Range Guided Wave (SRGW), which can be used for tank floor inspection vessel inspection for detection of corrosion CUI detection for piping or corrosion on under pipe support. Guided Wave is a technique which uses low frequency sound waves to flood thin wall material and then reflect back at interfaces such as cracking or corrosion/pitting. The guided wave technique is to be used as a screening tool only as remaining wall thickness measurements cannot be achieved. However, reflection distance can be measured with precise accuracy.


  • Soil to Air interface
  • Composite repairs
  • Vessel saddles
  • Pipe hangers
  • Repair clamps
  • Wear pads
  • Beneath repads
  • Tank floor critical zone inspection from outer chime while in service


  • Limited access – insulated line with minimal insulation removal, corrosion under supports without need for lifting, inspection at elevated locations with minimal need for scaffolding, and inspection of road crossings and buried pipes
  • Data is fully recorded
  • Real-time corrosion mapping
  • Reliable/Repeatable
  • High speed corrosion screening
  • Fast and easy set up
  • Greater accuracy than conventional LRUT
  • Portable
  • Light-weight
  • Can be used on Alloys, composites and other exotic materials
  • Can inspect thin & thick materials
  • Incremented scans for flaw location
  • Stitch multiple scans together of large areas
  • High speed corrosion screening
  • Map corrosion for future monitoring or repair
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