Non-destructive testing is a methodological approach encompassing a range of analysis techniques employed to evaluate the properties or condition of a material, component, or system without impairing its future usability. This field investigates internal structure, material integrity, and the presence of defects or discontinuities through methods that preserve the test object's form and function, utilizing diverse physical principles; its significance lies in enabling critical quality control, safety assessment, and lifetime management in engineering and manufacturing processes.