Acoustic emission testing (AET) is a non-destructive testing (NDT) method that uses sensors to detect and record ultrasonic waves generated by defects in materials:

How it works

AET sensors detect the waves and convert them into electrical signals that can be recorded and analyzed. The recorded information can help identify the origin and significance of defects.

Advantages

AET has many advantages, including:

It’s non-destructive, so it doesn’t damage the material being tested.

It can detect small-scale damage long before failure.

It’s cost-efficient.

It can be used in hazardous environments.

Limitations

AET has some limitations, including:

It can’t detect defects that don’t move or grow.

It can be slower than other NDT techniques.

What it’s used for

AET is used to inspect and monitor the behaviour of materials and equipment under stress. It can help detect defects such as cracks, corrosion, and faults. AET is used in a variety of industries, including O&G, chemical processing, and pressure equipment.