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2. Mechanism: analysis based on visual examination
Visual inspection is a non-destructive testing method which is often simple to implement, but which is also highly instructive, as it helps to explain the inspection mechanism.
This involves observing the surface of an object to detect any anomalies. This observation requires a light source of intensity and wavelength compatible with the natural eye ability of the operator performing the examination.
The process involved (figure 1 ) can be broken down into three essential phases:
excitation, which consists in producing a beam of white or monochromatic light;
perturbation, which...
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Mechanism: analysis based on visual examination
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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