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8. Acoustic emission control
8.1 Features
Acoustic Emission (AE) is the release of energy in the form of transient elastic waves within a material under load (figure 12 ).
Detection and analysis of the signals provide unprecedented information on stress field anomalies, such as the presence of defects. Detection is performed by a piezoelectric sensor with a frequency of 50 kHz to 1 MHz (generally 50 to 500 kHz).
Acoustic emission differs from conventional non-destructive testing techniques for several reasons:
the material...
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Acoustic emission control
Thermography
Bibliography
Non-destructive testing. General information. Cahiers de formation. CETIM 3rd edition.
Standardization
Personnel certification
- Non-destructive testing – Qualification and certification of NDT personnel – General principles. - NF EN 473/A1 - 2006-01
CND Vocabulary
- Non-destructive testing – Terminology – Part 1: List of general terms. - NF EN 1330-1 - 1999-08
- Non-destructive testing – Terminology – Part 2: Common terms for non-destructive testing methods. - NF EN 1330-2 - 1999-08 ...
Websites
More comprehensive information on the standards can be found on various websites, such as :
http://www.afiap.org The site of the professional guide to good...
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