Acoustic Emission Testing

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The Acoustic Emission Testing NDT technique allows for real-time 100% volumetric monitoring for structurally significant defects, yet is sensitive enough to detect inclusions, cracking, embrittlement, corrosion, stress corrosion cracking and other propagating defects. It requires stimulating defect sites by raising the pressure to 110 – 115% of the normal operating pressure. For static tests, it requires isolation and settling time for corrosion monitoring.

The method allows vessels to be inspected on-line with only a short interruption to normal service. It is best utilized as a qualitative maintenance planning tool to localize active defects prior to shutdowns. Armed with areas of interest, follow-up correlation NDT can then define the quantitative extent of the indications.

Acoustic Emission Testing applications are most suitable for:

Aboveground Storage Tank Screening for Corrosion & Leaks
Pressure Containment Vessels (Columns, Bullets, Cat Crackers)
Horton Spheres & legs
Fiberglass Reinforced Plastic Tanks and Piping
Offshore Platform Monitoring
Nuclear components inspection
Tube Trailers
Railroad tank cars
Bridge Critical Members monitoring
Pre- & Post-Stressed Concrete Beams
Reactor Piping
High Energy Seam Welded Hot Reheat Piping Systems in Power Plants.
On-Stream Monitoring
Remote Long Term Monitoring

Acoustic Emission Testing Advantages

Compared to conventional inspection methods the advantages of the Acoustic Emission Testing technique are:

Tank bottom Testing without removal of product.
Inspection of Insulated Piping & Vessels
Real time monitoring during cool-down & start-ups
Real Time Monitoring Saves Money
Real Time Monitoring Improves Safety

View our Acoustic Emission Testing brochure for more information: