Understanding Acoustic Emission Testing- Reading 1 Part B-A

ABSTRACT
Leaks in water pipelines cause unnecessary waste of limited resources, thus
the necessity of leakage prevention and detection.
The experience of water distribution companies shows that the reduction of
leakage and the preservation of a low leakage level can be achieved with a
strategy that requires a loss analysis followed by leak detection and location
survey.
Effective techniques of leak detection by acoustic emission have been
developed and tested and this paper describes the experience and results
obtained with the application of these techniques in the last fifteen years in
several water systems including but not limited to those managed by ASM
BRESCIA S.p.A. in Italy.
Charlie Chong/ Fion Zhang
http://www.ndt.net/article/wcndt00/papers/idn183/idn183.htm