The 21st SICE Kyushu Chapter Annual Conference Abstract [102D]

Last update: Fri Mar 28 21:23:56 2003

102D7
Detection of steel pipe corrosion utilizing the partial auto-correlation technique
AUTHORS
NAKAYAMA Takahiro , TORIGOE Ippei (Kumamoto University)
ABSTRACT
A new method is proposed for detecting steel pipe corrosion. Random noise is transmitted from one end of a pipe and the particle velocity picked up at the other end is processed to obtain the partial auto-correlation coefficients. The cross-sectional area function of the pipe wall is calculated from these coefficients. The pipe corrosion can be detected from the change in the cross-sectional area of the wall.