Smart Choice for Guided Wave Testing

Sectional Focusing Inspection (SFI)

Sectional Focusing Inspection (SFI) allows inspectors to focus ultrasonic guided waves on a section of pipe circumference to locate the defects along the pipe's circumference. SPI is highly sensitive to defects due to the sector probe only focusing ultrasonic guided waves on a targeted section of pipe circumference. The sector probe can inspect any pipe size including plate structure of vessel and tank wall.

Guided Wave Focusing by Sector Probe Scan
Sectional Focusing Inspection (SFI) using MsS Sector Probe

Compared with an encircling probe, SFI increases the defect detection sensitivity up to 40 times depending on pipe diameter and has merits of inspecting the following applications with high sensitivity:

  • Cased road crossing
  • Corrosion under insulation (CUI)
  • Dike and concrete wall penetration
  • Soil-air interface, clamp area
  • Pipe support
  • Offshore piping having complex geometry
  • Elbow section inspection
  • Pressure vessel
  • Tank wall, spherical tank, and other plate-like structures
  • Thick-wall plate
Example of Beam Divergence Pattern
Example of Beam Divergence Pattern