In-Pipe Diaganosis System
- In-pipe corrosion diagnosis using ultrasonic flaw detector and a developed inference system.
- The corrosion depth is measured precisely by detecting flaw echo using Wavelets and the types of corrsions are infered by two-dimentional data.
- The local corrosions at screw parts are detected using a surface SH wave probe.
(1) Wave form at cnorrosion point
(2) Wavelets of corrosion data
(3) In-pipe corrosion
(4) Contour map of residual thickness