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Eddy Current Testing (ET) Overview
Eddy current testing a modern Non-destructive testing – NDT method that has become one of the prime tool for quality…
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AE Applications
Acoustic emission is a very versatile, non-invasive way to gather information about a material or structure. Acoustic Emission testing (AET) is…
Non Destructive Testing 1 min read
AE Barkhausen Techniques
Barkhausen Effect The Barkhausen effect refers to the sudden change in size of ferromagnetic domains that occur during magnetization or demagnetization. During magnetization, favorably oriented…
Non Destructive Testing 4 min read
AE Source Location Techniques
Multi-Channel Source Location Techniques: Locating the source of significant acoustic emissions is often the main goal of an inspection. Although…
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AE Signal Features
With the equipment configured and setup complete, AE testing may begin. The sensor is coupled to the test surface and…
Non Destructive Testing 3 min read
Equipment
Acoustic emission testing can be performed in the field with portable instruments or in a stationary laboratory setting. Typically,…
Non Destructive Testing 5 min read
Theory – Acoustic Waves
Wave Propagation A primitive wave released at the AE source is illustrated in the figure right. The displacement waveform is…
Non Destructive Testing 5 min read
Theory – AE Sources
As mentioned in the Introduction, acoustic emissions can result from the initiation and growth of cracks, slip and dislocation movements,…
Non Destructive Testing 2 min read
A Brief History of AE Testing
Although acoustic emissions can be created in a controlled environment, they can also occur naturally. Therefore, as a means of…
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Introduction to Acoustic Emission Testing
Acoustic Emission (AE) refers to the generation of transient elastic waves produced by a sudden redistribution of stress in a…
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ACOUSTIC EMISSION (AE) OVERVIEW
Acoustic Emission (AE) testing is a powerful method for examining the behavior of materials deforming under stress. Acoustic Emission may be defined…
Non Destructive Testing 6 min read
Visual Testing
Visual testing (VT) is the oldest and most widely used nondestructive testing (NDT) techniques. It is typically the first step in the…