What is the critical angle in UT process.

Question

Accepted Answer

The critical angle in UT process is the angle at which the sound wave is refracted instead of being reflected back.

Critical angle is the angle at which the sound wave is refracted instead of being reflected back
It is the angle at which the sound wave enters the material at a certain angle and is no longer able to continue through the material
It is important to know the critical angle in UT process to ensure accurate inspection results
For example, if the critical angle is not taken into account, the inspector may miss defects that are located at a certain depth in the material

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