Ultrasonic Inspection is a very useful and versatile NDT method. Some of the advantages of ultrasonic inspection that are often cited include:
1) It is sensitive to both surface and subsurface discontinuities.
The depth of penetration for flaw detection or measurement is superior to other NDT methods.
2) Only single-sided access is needed when the pulse-echo technique is used.
3) Minimal part preparation is required.
4) Electronic equipment provides instantaneous results.
5) Detailed images can be produced with automated systems.
6) It has other uses, such as thickness measurement, in addition to flaw detection.
7) It is highly accurate in determining reflector position and estimating size and shape.
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