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acoustic-emission 

 Acoustic Emission Testing

Acoustic emission testing is an experienced based evaluation method utilizing acoustic sensors. These sensors detect high frequency signals from local overstress (yielding), crack growth or corrosion product fracturing and spalling. It is a global monitoring system that can direct conventional NDT methods to the localized problem areas. This technique increases inspection efficiency. It permits “on-line” monitoring of both pressure systems and storage tanks. without disrupting daily operations.