B. J. Mergelas, Ph.D., Preseident
The Pressure Pipe Inspection
Company, Ontario, Canada
As the age of our infrastructure
increases, non-destructive evaluation becomes more and more important. Eddy
current methods have been utilized for more than 100 years as a means for
detecting and characterizing materials, objects and other physical phenomena.
Eddy current phenomena and applications are reviewed for NDT industry generally
and examples for infrastructure presented. The remote field eddy
current/transformer coupling (RFEC/TC) is presented as the technique to meet
the NDE inspection needs of pre-stressed concrete cylinder pipe. The method has been used successfully to
detect pre-stressing wire failures in PCCP.
This paper explains the technology and presents recent test results and
field applications. Case examples
describe the inspection experience with several pipeline owners.
If you have
any questions, please contact Dr.
C.Vipulanandan
Copyright © 1998 University of Houston