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Refractive index (ut)
| Глоссарий терминов по технологиям неразрушающего контроля (NDT) |
The ratio of the velocity of a wave in one medium to the velocity of the wave in a second medium is the refractive index of the second medium with respect to the first. it is a measure of the amount a wave will be refracted when it enters the second medium after leaving the first.
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Refractive, английский
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Demagnetization (mt), английский
The reduction in the degree of residual magnetism in ferromagnetic materials to an acceptable level.
Sensitivity, radiographic, английский
The ratio of the smallest difference in thickness that is detectable on the radiograph to the thickness of the specimen. it may be expressed as a percentage, and is an indication of ability to detect a small discontinuity. in practice, it is determined by the use of an image quality indicator (penetrameter).
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